Subjects -> AGRICULTURE (Total: 981 journals)
    - AGRICULTURAL ECONOMICS (93 journals)
    - AGRICULTURE (680 journals)
    - CROP PRODUCTION AND SOIL (120 journals)
    - DAIRYING AND DAIRY PRODUCTS (30 journals)
    - POULTRY AND LIVESTOCK (58 journals)

AGRICULTURE (680 journals)            First | 1 2 3 4     

Showing 201 - 263 of 263 Journals sorted alphabetically
Economic Affairs     Hybrid Journal   (Followers: 8)
Economic and Industrial Democracy     Hybrid Journal   (Followers: 12)
Economic Bulletin     Hybrid Journal   (Followers: 6)
Economic Policy     Hybrid Journal   (Followers: 51)
Economic Record     Hybrid Journal   (Followers: 7)
Economics of Disasters and Climate Change     Hybrid Journal   (Followers: 13)
Egyptian Journal of Biological Pest Control     Open Access  
Emirates Journal of Food and Agriculture     Open Access   (Followers: 1)
Empirical Economics     Hybrid Journal   (Followers: 16)
Encuentro     Open Access  
Energy Nexus     Open Access  
Ensaios e Ciência : Ciências Biológicas, Agrárias e da Saúde     Open Access  
Environment and Development Economics     Hybrid Journal   (Followers: 43)
Eppo Bulletin     Hybrid Journal   (Followers: 1)
Ethiopian Journal of Agricultural Sciences     Open Access  
Ethiopian Journal of Science and Technology     Open Access  
Ethiopian Journal of Sciences and Sustainable Development     Open Access  
Ethology     Hybrid Journal   (Followers: 11)
EU Agrarian Law     Open Access   (Followers: 4)
Euphytica     Hybrid Journal   (Followers: 8)
Eurochoices     Hybrid Journal   (Followers: 1)
European Journal of Agronomy     Hybrid Journal   (Followers: 12)
European Journal of American Culture     Hybrid Journal  
European Journal of Health Economics     Hybrid Journal   (Followers: 24)
European Journal of Law and Economics     Hybrid Journal   (Followers: 50)
European Review of Agricultural Economics     Hybrid Journal   (Followers: 12)
EvoDevo     Open Access   (Followers: 4)
Farm Engineering and Automation Technology Journal     Open Access  
Fave : Sección ciencias agrarias     Open Access  
Fitosanidad     Open Access  
Florea : Jurnal Biologi dan Pembelajarannya     Open Access  
Folia Horticulturae     Open Access   (Followers: 1)
Folia Oecologica     Open Access  
Food and Agricultural Immunology     Open Access   (Followers: 2)
Food and Ecological Systems Modelling Journal     Open Access  
Food and Energy Security     Open Access   (Followers: 3)
Food and Environment Safety     Open Access   (Followers: 3)
Food Biotechnology     Hybrid Journal   (Followers: 8)
Food Economics - Acta Agriculturae Scandinavica, Section C     Hybrid Journal   (Followers: 1)
Food New Zealand     Full-text available via subscription   (Followers: 1)
Food Policy     Hybrid Journal   (Followers: 36)
Forest@ : Journal of Silviculture and Forest Ecology     Open Access  
Forestry Chronicle     Full-text available via subscription   (Followers: 9)
Fronteiras : Journal of Social, Technological and Environmental Science     Open Access  
Frontiers in Science     Open Access   (Followers: 1)
Fundamental and Applied Agriculture     Open Access  
Future Foods     Open Access   (Followers: 2)
Future of Food : Journal on Food, Agriculture and Society     Open Access   (Followers: 19)
Gema Agro     Open Access  
Geoderma     Hybrid Journal   (Followers: 8)
Ghana Journal of Agricultural Science     Full-text available via subscription   (Followers: 2)
Global Approaches to Extension Practice : A Journal of Agricultural Extension     Full-text available via subscription   (Followers: 1)
Global Economic Review     Hybrid Journal   (Followers: 8)
Global Journal of Agricultural Sciences     Full-text available via subscription  
Global Journal of Biology, Agriculture & Health Sciences     Open Access  
Gontor Agrotech Science Journal     Open Access  
Hacquetia     Open Access  
Health Economics, Policy and Law     Hybrid Journal   (Followers: 26)
Heliyon     Open Access  
Hereditas     Open Access   (Followers: 1)
Horticultural Studies     Full-text available via subscription  
Huria : Journal of the Open University of Tanzania     Full-text available via subscription   (Followers: 2)
IDESIA : Revista de Agricultura en Zonas Áridas     Open Access  
Indian Horticulture     Full-text available via subscription   (Followers: 8)
Indian Journal of Agricultural Sciences     Open Access   (Followers: 12)
Indian Journal of Animal Nutrition     Open Access  
Indian Journal of Extension Education     Open Access   (Followers: 1)
Indian Journal of Horticulture     Open Access  
Indian Journal of Traditional Knowledge (IJTK)     Open Access   (Followers: 1)
Indonesian Journal of Agricultural Science     Open Access   (Followers: 2)
Information Processing in Agriculture     Open Access  
Innovare Journal of Agricultural Science     Open Access   (Followers: 1)
Innovations in Agriculture     Open Access  
Interciencia     Open Access  
International Advances in Economic Research     Hybrid Journal   (Followers: 6)
International Dairy Journal     Hybrid Journal   (Followers: 4)
International Journal for Parasitology : Parasites and Wildlife     Open Access   (Followers: 2)
International Journal of Agricultural and Life Sciences     Open Access  
International Journal of Agricultural Extension     Open Access   (Followers: 1)
International Journal of Agricultural Management and Development     Open Access   (Followers: 2)
International Journal of Agricultural Research     Open Access   (Followers: 3)
International Journal of Agricultural Research, Innovation and Technology     Open Access   (Followers: 3)
International Journal of Agricultural Resources, Governance and Ecology     Hybrid Journal   (Followers: 2)
International Journal of Agricultural Science and Food Technology     Open Access  
International Journal of Agricultural Sustainability     Hybrid Journal   (Followers: 12)
International Journal of Agriculture and Forestry     Open Access   (Followers: 6)
International Journal of Agriculture Innovation, Technology and Globalisation     Hybrid Journal  
International Journal of Agriculture, Environment and Food Sciences     Open Access   (Followers: 1)
International Journal of Agriculture, Forestry and Life Sciences     Open Access  
International Journal of Agronomy     Open Access   (Followers: 5)
International Journal of Applied Agriculture and Apiculture Research     Open Access   (Followers: 3)
International Journal of Dairy Science     Open Access   (Followers: 4)
International Journal of Dairy Technology     Hybrid Journal   (Followers: 2)
International Journal of Food Science and Agriculture     Open Access   (Followers: 3)
International Journal of Fruit Science     Open Access  
International Journal of Green Economics     Hybrid Journal   (Followers: 6)
International Journal of Hydrology Science and Technology     Hybrid Journal   (Followers: 6)
International Journal of Intercultural Relations     Hybrid Journal   (Followers: 16)
International Journal of Pest Management     Hybrid Journal   (Followers: 2)
International Journal of Postharvest Technology and Innovation     Hybrid Journal   (Followers: 2)
International Journal of Poultry Science     Open Access   (Followers: 4)
International Journal of Recycling of Organic Waste in Agriculture     Open Access   (Followers: 1)
International Journal of Secondary Metabolite     Open Access  
International Journal of Social Economics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Agricultural Management and Informatics     Hybrid Journal   (Followers: 1)
International Journal of the Economics of Business     Hybrid Journal   (Followers: 1)
International Journal of Tropical Veterinary and Biomedical Research     Open Access  
International Journal of Vegetable Science     Hybrid Journal  
International Journal on Food, Agriculture and Natural Resources : IJ-FANRES     Open Access  
International Letters of Natural Sciences     Open Access  
International Multidisciplinary Research Journal     Open Access  
International Review of Applied Economics     Hybrid Journal   (Followers: 6)
International Review of Economics     Hybrid Journal   (Followers: 4)
International Scientific Journal of Engineering and Technology (ISJET)     Open Access  
Invertebrate Reproduction & Development     Hybrid Journal   (Followers: 5)
Iranian Journal of Applied Animal Science     Open Access   (Followers: 1)
Irrigation and Drainage     Hybrid Journal   (Followers: 12)
Irrigation Australia: The Official Journal of Irrigation Australia     Full-text available via subscription   (Followers: 1)
Italian Journal of Agronomy     Open Access   (Followers: 4)
Journal (Australian Native Plants Society. Canberra Region)     Full-text available via subscription  
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal für Kulturpflanzen     Open Access  
Journal of Advances in Agriculture     Open Access   (Followers: 5)
Journal of Agrarian Change     Hybrid Journal   (Followers: 3)
Journal of Agricultural & Food Information     Hybrid Journal   (Followers: 5)
Journal of Agricultural and Environmental Ethics     Hybrid Journal   (Followers: 8)
Journal of Agricultural and Food Chemistry     Hybrid Journal   (Followers: 9)
Journal of Agricultural and Marine Sciences     Open Access  
Journal of Agricultural Chemistry and Environment     Open Access   (Followers: 3)
Journal of Agricultural Economics     Hybrid Journal   (Followers: 31)
Journal of Agricultural Engineering     Open Access   (Followers: 2)
Journal of Agricultural Engineering     Full-text available via subscription   (Followers: 1)
Journal of Agricultural Extension     Open Access   (Followers: 1)
Journal of Agricultural Extension and Rural Development     Open Access   (Followers: 3)
Journal of Agricultural Meteorology     Open Access  
Journal of Agricultural Production     Open Access  
Journal of Agricultural Research and Development     Full-text available via subscription  
Journal of Agricultural Research and Extension     Open Access   (Followers: 1)
Journal of Agricultural Science     Full-text available via subscription   (Followers: 9)
Journal of Agricultural Science     Open Access   (Followers: 4)
Journal of Agricultural Sciences     Open Access   (Followers: 1)
Journal of Agricultural Sciences     Open Access  
Journal of Agricultural Studies     Open Access   (Followers: 1)
Journal of Agricultural, Biological & Environmental Statistics     Hybrid Journal   (Followers: 11)
Journal of Agriculture     Open Access  
Journal of Agriculture     Open Access  
Journal of Agriculture and Ecology Research International     Open Access  
Journal of Agriculture and Food Research     Open Access  
Journal of Agriculture and Food Sciences     Full-text available via subscription   (Followers: 1)
Journal of Agriculture and Natural Resources     Open Access  
Journal of Agriculture and Natural Resources Sciences     Open Access   (Followers: 3)
Journal of Agriculture and Rural Development in the Tropics and Subtropics     Open Access   (Followers: 4)
Journal of Agriculture and Social Research (JASR)     Open Access   (Followers: 5)
Journal of Agriculture and Sustainability     Open Access   (Followers: 6)
Journal of Agriculture, Food Systems, and Community Development     Open Access   (Followers: 3)
Journal of Agriculture, Forestry and the Social Sciences     Full-text available via subscription   (Followers: 5)
Journal Of Agrobiotechnology     Open Access  
Journal of Agromedicine     Hybrid Journal   (Followers: 1)
Journal of Agronomy     Open Access   (Followers: 7)
Journal of Anatolian Environmental and Animal Sciences     Open Access  
Journal of Animal Science and Products     Open Access  
Journal of Animal Science, Biology and Bioeconomy     Open Access  
Journal of Apicultural Science     Open Access   (Followers: 2)
Journal of Applied Communications     Open Access  
Journal of Applied Ecology     Hybrid Journal   (Followers: 205)
Journal of Arid Land     Hybrid Journal  
Journal of Asia-Pacific Entomology     Full-text available via subscription   (Followers: 6)
Journal of Biological Control     Hybrid Journal   (Followers: 2)
Journal of Biology, Agriculture and Healthcare     Open Access   (Followers: 2)
Journal of Biosystems Engineering     Full-text available via subscription  
Journal of Buffalo Science     Hybrid Journal  
Journal of Cereal Research     Open Access  
Journal of Cereal Science     Hybrid Journal   (Followers: 3)
Journal of Citrus Pathology     Open Access  
Journal of Competition Law and Economics     Hybrid Journal   (Followers: 34)
Journal of Cotton Research     Open Access  
Journal of Dairy Research     Full-text available via subscription   (Followers: 4)
Journal of Dairy Science     Open Access   (Followers: 12)
Journal of Degraded and Mining Lands Management     Open Access   (Followers: 1)
Journal of Economic Surveys     Hybrid Journal   (Followers: 23)
Journal of Environmental and Agricultural Studies     Open Access   (Followers: 1)
Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes     Hybrid Journal   (Followers: 5)
Journal of Essential Oil Research     Hybrid Journal   (Followers: 3)
Journal of Extension Education     Open Access   (Followers: 1)
Journal of Family and Economic Issues     Hybrid Journal   (Followers: 4)
Journal of Food Protection(R)     Full-text available via subscription   (Followers: 7)
Journal of Food Security     Open Access   (Followers: 2)
Journal of Food Security and Agriculture     Open Access   (Followers: 1)
Journal of Halal Product and Research     Open Access  
Journal of Horticultural Science and Biotechnology     Hybrid Journal  
Journal of Horticultural Sciences     Open Access   (Followers: 2)
Journal of Horticulture and Postharvest Research     Open Access  
Journal of Industrial Hemp     Hybrid Journal  
Journal of Integrative Agriculture     Full-text available via subscription   (Followers: 4)
Journal of Kerbala for Agricultural Sciences     Open Access  
Journal of Land and Rural Studies     Hybrid Journal   (Followers: 10)
Journal of Modern Agriculture     Open Access   (Followers: 4)
Journal of Natural Resources and Development     Open Access   (Followers: 1)
Journal of Natural Sciences Research     Open Access   (Followers: 1)
Journal of Nepal Agricultural Research Council     Open Access  

  First | 1 2 3 4     

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International Journal of Agronomy
Journal Prestige (SJR): 0.311
Citation Impact (citeScore): 1
Number of Followers: 5  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1687-8159 - ISSN (Online) 1687-8167
Published by Hindawi Homepage  [339 journals]
  • Effects of Conservation Agriculture and Conventional Tillage on the Soil
           Physicochemical Properties and Household Income in Southern Ethiopia

    • Abstract: In Ethiopia, soil degradation has been ongoing for centuries and caused the population to be food insecured. To cope with the challenges of soil fertility loss and related stress, various indigenous reclamation practices have been developed and implemented by local smallholder farmers. However, the contributions of indigenous soil management in augmenting soil quality and crop productivity were not well studied. This study selected two neighboring districts, Derashe and Arba Minch Zuriya, with different indigenous soil management practices. The Derashe people as an adaptation strategy designed indigenous soil management, locally known as Targa-na-Potayta with zero tillage, and mixed/rotational cropping. However, in the neighboring Arba Minch Zuriya district, smallholder farmers use conventional tillage using animal power. Representative soil samples were collected from selected four adjacent kebeles of the two districts. Eight farm plots per kebele were selected and a total of 32 composite samples were collected following a zigzag pattern to the depth of 30 cm. Bulk density (BD), field capacity (FC), permanent wilting point (PWP), particle size, soil textural classes, power of hydrogen (pH), cation exchange capacity (CEC), available potassium (Av. K), available phosphorous (Av. P), total nitrogen (TN), exchangeable bases (Na, Mg, Ca, and K), and soil organic carbon (OC) were analyzed. To assess crop production and income, a total of 392 household heads were interviewed using a structured questionnaire. The collected data were analyzed using an independent sample t-test. The results showed, soils under indigenous management, clay content was 53.74 ± 2.68%, FC 47.8 ± 1.09%, AWHC 15.2 ± 0.37%, pH 8.02 ± 0.07, SOC 1.8 ± 0.02%, and sum of cations 68.2 ± 1.66 meq/100 g. The values in the tested parameters were statistically significant () and favor good soil management practice as compared to conventional tillage. Using the three consecutive cultivation seasons, CA and CT groups’ mean production from pooled annual crops was 81.28 and 51.03Q ha-1, respectively. CA and CT groups’ mean gross income from annual crops was 98,250.15 ETB ($2751.78) ha-1 and 71,099.48 ETB ($1993.4) ha-1, respectively. Considering the pooled three consecutive cultivation seasons, CA and CT groups’ income from annual + perennial crops was 93,405.29 ETB ($2870.69) ha-1 and 280,721.73 ETB ($8325.17) ha-1, respectively. CA and CT groups’ per annum income from annual + perennial crops was 49,672.86 ETB ($1444.82) ha-1 and 157,980.60 ETB ($4595.13) ha-1, respectively. To sustainably maximize the productivity of the land, conventional tillage practicing smallholder farmers need to integrate the indigenous soil management approach—Targa-na-Potayta. Besides, the benefits of Targa-na-Potayta as sustainable agricultural land management practice need to be scaled out with policy support.
      PubDate: Thu, 12 May 2022 13:05:01 +000
       
  • Morphological and Physiological Characterization of Cassava Genotypes on
           Dry Land of Ultisol Soil in Indonesia

    • Abstract: Indonesia has a large cassava diversity, but the tolerant cultivars on drought areas have not been well recorded. Candidate mapping can begin with morphological and physiological characterization. This study aimed to map cassava’s genetic diversity, determining the key phenotype to distinguish genotypes, physiological adaptation, and high-yield candidates under environmental stress. A total of 29 genotypes were clustered into 5 groups. A specific group for genotype from same site was not found. The differences and relations among genotypes were very clear, demonstrating cassava’s genetic diversity in Indonesia. The key group characteristics are upward petiole orientation (G1), nine lobes (G2), prominent foliar scars (G3), winding lobe (G4), and elliptic-lanceolate (G5). A total of 19 genotypes had a number of storage root >10 storage roots, 20 genotypes had a weight of storage root >2 kg/plant, and 3 genotypes had >4 kg/plant. Morphological and physiological trait determination is relevant to contribute to high-yield cassava breeding in dry areas. The morphological characteristics of well-adapted plants were plant height, lobe characteristics, and petiole orientation, while the physiological traits were chlorophyll index, transpiration rate, and photosynthesis rate.
      PubDate: Wed, 11 May 2022 07:05:02 +000
       
  • Vulnerability of Agrobiodiversity and Agroforestry Settings to Climate
           Change in Gedeo Zone, Ethiopia

    • Abstract: The study was carried out at the Gedeo zone aiming to investigate the vulnerability of agrobiodiversity and agroforestry settings to climate change in the district. Thus, the study was focused on evaluating crop diversity under different crop management practices and its distribution at the household level among different wealth classes and land use land cover change impact on agrobiodiversity and agroecosystems areas. Therefore, crop survey both from the home garden and crop field, the last 30 years’ data from five meteorological stations located in the district and the past 30 years’ Landsat satellite images at a 10-year interval within the same season was used. A total of 65 crop plant species with eleven major use categories have been recorded in the studied home gardens and crop fields. The crop plant species collected from both the home garden and crop field account for 57% and 38%, while the rest 5% were from the adjacent field. The land use and land cover map of the study area indicate that the largest part of the study area (108548.01 hectares) was covered by agroforestry, whereas the smallest portion of the district, about 975.15, 6457.41 and 12501.27 hectares of the area, was covered by bare land, cropland, and grassland, respectively. The remaining 20537.73 hectares (13.8%) of the district were covered with settlements. Crop species diversity is higher almost in the entire study site. However, crop species compositions were significantly variable among these study sites. The climatic data results indicated a reduction in average rainfall pattern in most of the stations and an increase in temperature within the employed time range.
      PubDate: Mon, 09 May 2022 17:35:04 +000
       
  • Post-Veraison Water Stress and Pruning Level on Merlot Grapevine (Vitis
           vinifera L.): Effects on Berry Development and Composition

    • Abstract: The grapevine berry development and composition at harvest are major determinant of productivity and wine quality. The increase in grapevine productivity by applying proper pruning and watering may affect fruit traits of the grapevine development notably berry size, weight, and volume as well as the berry composition mainly the total soluble solids (TSSs), titratable acidity (TA), pH of the grapes, total anthocyanins, and phenolic content and concentration. In this context, this study aimed to explore the response of berry development and composition to the interactive effect of pruning level and post-veraison water stress. Four pruning levels (severe, standard, light, and minimal) in combination with four post-veraison water stresses (none, light, moderate, and intense) were tested. The interactive effect of pruning level and post-veraison water stress has significantly altered all parameters, except berry weight which was influenced by the main effect of the two factors. Generally, post-veraison water stress reduced berry volume, weight, yield, and TA, but increased the TSS, pH, total anthocyanins, and phenols. Increasing in the pruning level also reduced berry yield per vine, TSS, and pH, but increased the berry volume, weight, TA, total anthocyanins, and phenols. Specifically, the highest berry volume, weight, and TA were registered in severely pruned grapevines with adequate water supply. Conversely, the minimally pruned grapevines with intense water stress had the highest TSS and pH of grape juice. The total anthocyanins and phenols were advanced by the increment from minimal to severe pruning levels but depressed when the water stress extended from none to an intense level. In the other hand, the maximum total anthocyanins and phenols in terms of concentration and content were observed in severely pruned grapevines under intense water stress. Interestingly, higher berry yield per grapevine was scored in minimally pruned grapevines with adequate water supply, possibly due to the increased number of nodes per vine. TSS had a strong negative relationship with berry volume, weight, yield, and TA, while pH had a strong positive relationship with TSS. Total anthocyanins and phenols were also inversely correlated with berry yield per grapevine. The results showed that the combined effect of pruning levels and water stress is a powerful tool to balance berry development and composition. As Merlot is a typical red wine grapevine, it is important to increase the berry composition even though there could be a reduction in its berry development variables including berry yield per vine.
      PubDate: Thu, 28 Apr 2022 07:50:01 +000
       
  • Green Synthesis of Zinc Oxide Nanoparticles from Coriandrum sativum and
           Their Use as Fertilizer on Bengal Gram, Turkish Gram, and Green Gram Plant
           Growth

    • Abstract: Plant growth and development rely on various factors, including mineral nutrients. Some are macronutrients like nitrogen, phosphorus, and potassium, whereas some are micronutrients like iron, magnesium, zinc, and a few vitamins. This experimental attempt was to check the stimulatory effect of zinc nanoparticles on pulse plant growth. The study was conducted on the green synthesis of zinc oxide nanoparticles using Coriandrum sativum leaves extract. The characterization of zinc oxide nanoparticles was studied using the X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope technique (TEM). The effect of zinc oxide nanoparticles as a fertilizer on pulses plant (Bengal gram, Turkish gram, and green grams) was studied in vitro. The seed germination rate, length of root and shoot, fresh weight, dry weight, and protein and chlorophyll content were measured in different media for assessment of zinc oxide nanoparticle’s growth stimulatory effects. The green synthesis of zinc oxide nanoparticles was confirmed with a size around 100 nm by transmission microscope technique. The germination rate of plants was 100% in MS media and MS media + nanoparticles. The present study found that the root length, shoot length, and weight were higher in MS media + nanoparticles followed by MS media, MS media only with nanoparticles, and MS media without zinc, respectively. It is found that the zinc oxide nanoparticles support seed germination and plant growth and also increase the protein and chlorophyll content. Significantly enhanced growth and development were evident in green gram and Turkish gram compared to that in Bengal gram in media treated with zinc oxide nanoparticles. The protein estimation results showed that the content was higher after 7 days in plants of Bengal gram (1.23 mg/ml), Turkish gram (1.19 mg/ml), and green gram (1.26 mg/ml) than that in roots and shoots. The application of MS media + ZnO nanoparticles results showed that chlorophyll content 12.6 mg/l was observed in other applications in the plant’s seedlings. In contrast, the absence of zinc decreases the germination rate, plant growth, chlorophyll, and protein content. This study confirms that the green synthesis of zinc oxide nanoparticles assessed from Coriandrum sativum leaves holds implication and should function as an active biofertilizer.
      PubDate: Wed, 27 Apr 2022 12:50:01 +000
       
  • Determinants of Sesame Market Supply in West Omo and Bench Sheko Zones,
           Southwest Ethiopia

    • Abstract: Farmers depend on sesame farming as their major source of income in West Omo and Bench Sheko zones. However, they face diverse marketing challenges to deliver their product to the market. Therefore, the study aimed to investigate the variables that affect sesame market supply in West Omo and Bench Sheko zones. The study’s data were gathered from primary and secondary sources. Multistage random sampling was employed to select 270 sample sesame producers. The analysis was done using descriptive statistics as well as econometric models. Multiple regression model results showed that total livestock unit, sesame farming experience, cooperative membership, family size, land under sesame, annual off-farm income, participation in training, and distance to the nearest market significantly affected the amount of sesame supplied to the market. The study recommends strengthening sesame producer cooperative, promoting experience sharing among experienced farmers, improving transportation accessibility and infrastructure development, increasing productivity by fortifying extension service providers, and encouraging sesame producers to participate actively in various trainings.
      PubDate: Sat, 23 Apr 2022 16:35:02 +000
       
  • Assessing the Fodder Potentials of Drought-Tolerant Maize (Zea mays L.)
           Hybrids in West Africa

    • Abstract: The study evaluated the fodder potential of 42 promising drought-tolerant (DT) three-way cross maize (Zea mays L.) hybrids, 11 commercial hybrid checks, and 1 local variety check under irrigation. Agronomic and laboratory trials were conducted to determine their morphological traits and fodder potential. Hierarchical cluster analysis (HCA) to group cultivars into clusters is based on quantity, quality, and the combination of both variables. Selection of potential food-feed cultivars was based on the quantity traits (grain and biomass yield) and quality traits crude protein (CP), in vitro organic matter digestibility (IVOMD), and metabolizable energy (ME). Variation was found for dry matter yield (DMY) at harvest as commercial hybrid recording the maximum DMY of 14.1 t ha−1 and the highest grain yield of 1.4 t ha−1 (P 
      PubDate: Thu, 14 Apr 2022 05:50:05 +000
       
  • Response of Two Maize (Zea mays L.) Varieties to Times of NPK (15-15-15)
           Fertilizer Application

    • Abstract: Nitrogen rate and time of application are among the major abiotic factors limiting the productivity of maize. The research was, therefore, carried out to examine the response of two maize varieties (Omankwa and Pioneer hybrid) to four different times of N : P : K 15 : 15 : 15 fertilizer application during the major growing season in Ghana. The experiment was arranged in a randomized complete block design with eight treatment combinations with three replications. Our findings showed that the two maize varieties responded to the time of fertilizer application differently. The interactive effect indicated that the application of fertilizer during planting produced the highest grain yield (4.7 tons ha−1) of the Omankwa (open-pollinated variety) while the application of fertilizers two/four weeks after planting increased the grain yield (6.5 tons ha−1) of the hybrid. The growth and yield parameters were not significantly affected by the treatment combinations. In order for farmers to obtain good yield, it is recommended that farmers should apply N : P : K 15 : 15 : 15 during planting for the Omankwa variety and 14/28 days after planting for the Pioneer hybrid variety in Ghana.
      PubDate: Tue, 12 Apr 2022 10:50:02 +000
       
  • Evaluation of Rhizosphere Bacterial Antagonists against Ralstonia
           solanacearum Causing Tomato (Lycopersicon esculentum) Wilt in Central
           Ethiopia

    • Abstract: Tomato (Lycopersicon esculentum) is one of the most commonly grown vegetables in Ethiopia. However, diseases such as bacterial wilt caused by Ralstonia solanacearum have been limiting the production. The rhizosphere is an important source of antagonistic bacteria against soilborne pathogens. This study aimed to investigate the antagonistic potential of rhizosphere bacteria against R. solanacearum in vitro. The pathogen was isolated from wilted tomato plants and tested for hypersensitivity reactions to ascertain the virulent R. solanacearum. Antagonistic rhizobacteria were also isolated from the rhizosphere of healthy tomatoes. Isolates were identified based on cultural characteristics and biochemical tests. The antagonistic effect of rhizobacteria against R. solanacearum was tested in vitro. In addition, the growth of rhizobacterial isolates was determined at different levels of temperature, pH, and NaCl. Of the 36 randomly collected colonies, 7 isolates were identified as Ralstonia spp., all of which were grouped under R. solanacearum biovar III. Similarly, 57 rhizobacteria were isolated, and only 14 had shown antagonistic effects against R. solanacearum. The antagonistic rhizobacteria were identified as Pseudomonas or Bacillus species. Significantly higher ( ≤ 0.05) antagonistic activity (14.66 mm inhibition zone) was recorded by Pseudomonas isolate (P6) than recorded by the rest of the isolates and the positive control. Nine rhizobacterial isolates (out of 14) demonstrated higher or equal inhibition zones recorded by the positive controls. All isolates grew at temperatures ranging 15–45°C, pH 5–9, and 2–5% NaCl. The Bacillus spp. grew at all conditions except at pH 3, showing that they can tolerate wide range of growth conditions. The results of this study showed the presence of potential antagonistic bacteria against R. solanacearum in the study area, which can be used for the control of bacterial wilt of tomato as an alternative management option. Further study is required to determine the efficacy at greenhouse and field conditions.
      PubDate: Mon, 11 Apr 2022 11:05:02 +000
       
  • Plant Density and Time of White Lupine (Lupinus Albus L.) Relay Cropping
           with Tef (Eragrostis tef (Zucc.) Trotter) in Additive Design in the
           Highlands of Northwest Ethiopia

    • Abstract: Agronomic strategies such as choosing the optimal row ratio and planting legume crops at the right time are crucial for enhancing crop productivity. A field experiment was conducted in 2016 and 2017 to assess the influence of plant density and lupine intercropping time on tef field productivity. The treatments were as follows: tef was planted at a 20 cm inter-row spacing, lupine was sown at 20 and 40 cm inter-row spacing (row ratio of 1 tef: 1 lupine and 2 tef: 1 lupine) and lupine intercropped three times (1, 2, and 3 weeks after tef planting). Randomized complete block design (RCBD) with 3 replications were used. Two sole tef and lupine were planted. The results revealed 40 cm inter-row spacing and delayed lupine intercropping (3 weeks after tef planting) provided the maximum tef grain yield of 1.80 t ha−1. The sole cropping of lupine produced the highest lupine grain yield (2.63 t ha−1). Lupine intercropping at 40 cm inter-row spacing and two weeks after tef planting resulted in the highest land equivalent ratio (1.54), tef equivalent yield (2.45 t ha−1), area time equivalent ratio (1.11), system productivity index (2.5), monetary advantage index (15206 birr ha−1), net benefit (65109 birr ha−1), and marginal rate of return (602%). Therefore, farmers in the northwest Ethiopian highlands should consider intercropping lupine two weeks after tef planting in-between two rows of tef as an effective intercropping system.
      PubDate: Tue, 05 Apr 2022 13:20:03 +000
       
  • SCoT, ISSR, and SDS-PAGE Investigation of Genetic Diversity in Several
           Egyptian Wheat Genotypes under Normal and Drought Conditions

    • Abstract: Using agronomic parameters, ISSR (inter simple sequence repeat), and SCoT (start codon targeted) markers, ten potential wheat genotypes were examined for genetic diversity under normal and drought conditions. Significant agronomic features have been identified, as well as a low drought susceptibility index. Using seven SCoT and seven ISSR primers, a total of 112 amplified DNA fragments were synthesized, resulting in 61 and 51 bands, respectively. For SCoT and ISSRs, the percentage of polymorphism was 93.4% and 78.4%, respectively. Two markers, ISSR and SCoT, were found to be effective in detecting polymorphism among the examined genotypes, with mean PIC values of 0.61 and 0.62, respectively. In terms of marker index (MI), resolving power (Rp), and polymorphism percentage, SCoT markers exhibited the most significant values. The examination of seed storage proteins revealed 21 subunits with a mass ranging from 22 to 110 kDa. A cluster analysis of the data and morphological features contributed to identifying different molecular and biochemical bands that could be linked to genotype 4’s drought-resistance capabilities.
      PubDate: Wed, 30 Mar 2022 11:20:01 +000
       
  • Corrigendum to “Growth, Yield-Related Traits and Yield of Lowland Maize
           (Zea mays L.) Varieties as Influenced by Inorganic NPS and N Fertilizer
           Rates at Babile, Eastern Ethiopia”

    • PubDate: Tue, 22 Mar 2022 05:05:04 +000
       
  • Genetic Variability, Correlation, and Path Analysis of Thai Commercial
           Melon Varieties

    • Abstract: In the selection phase of melon breeding programs, genetic variability is a critical component for yield improvement. The goals of this study were to discover the variables that affect melon fruit weight and examine genetic variability, correlation, and path analysis of eight melon varieties. The experiment was arranged as a completely randomized block design with 4 blocks. It was conducted between July and September 2021 at the School of Agricultural Technology, Walailak University, Nakhon Si Thammarat, Thailand. The result found that stem diameter and length, leaf length, width, number, and chlorophyll, day to 50% male and female flowering, and fruit perimeter, height, and weight were highly significant across the varieties. The genotypic coefficients of variation (GCV) of observed variables were all lower than phenotypic coefficients of variation (PCV). Fruit weight (15.462 and 19.865%) had the highest GCV and PCV. High broad-sense heritability was linked to high (H) or moderate (M) genetic advance as a percentage of the mean from stem length (67.606%: H and 21.992%: H), fruit weight (60.586%: H and 24.793%: H), fruit perimeter (76.395%: H and 12.258%: M), and fruit height (69.828%: H and 12.122%: M). The maximum and significant genotypic correlation value was obtained between leaf length and leaf width (r = 1.000). Fruit weight is positively correlated with fruit perimeter (r = 0.940) and fruit height (r = 0.831). According to correlation and path analyses, stem diameter and length, leaf chlorophyll, and fruit perimeter and height were considered variables for fruit weight improvement in the breeding programs. It suggests that the increase in traits with a favorable direct influence on fruit weight may directly contribute to fruit weight.
      PubDate: Thu, 10 Mar 2022 11:50:02 +000
       
  • Effect of Arbuscular Mycorrhizal Fungi (AMF) and Rhizobium Inoculation on
           Growth and Yield of Glycine max L. Varieties

    • Abstract: Biofertilizers are preparations containing living cells that help crop plants in the uptake of nutrients. This study aimed to investigate the effect of coinoculation of arbuscular mycorrhizal fungi and Rhizobium species on the growth and nutrient uptake of three varieties of Glycine max: Belsa 95, Afgat M5, and Nova E3, in the greenhouse and the field. These varieties were obtained from the Gambela research center of Ethiopia. Commercial Rhizobium inoculants were obtained from the Menagesha Biotechnology Institute (MBI), and the previously isolated indigenous AMF inoculants were mass-produced using Sorghum bicolor as a trap plant. Two kilograms of sterilized soil and sand in a 2:1 ratio were used for greenhouse treatments, and 2 m × 3 m plots were used for field treatments. In the greenhouse trials, for all the three varieties was recorded better yield plant−1 in coinoculated treatments with fertilizer application and without fertilizer application, respectively. The highest root number plant−1 (10.0 ± 1.2 and 10.0 ± 1.7) was recorded for variety 1 with the application of only fertilizer and fertilizer + Rhizobium, respectively, and the highest values (8.7 ± 1.9 and 4.7 ± 0.8) were recorded for coinoculated treatments with fertilizer application for varieties 2 and 3, respectively. For sole mycorrhiza-inoculated treatments in the greenhouse was recorded higher dry biomass (16.67% for V1, 42.20% for V2, and 22.18% for V3) as compared with the control. Moreover, for combined inoculation of AMF + Rhizobium and AMF + Rhizobium + fertilizer were recorded 27.01% and 66.99% for V1, 42.20% and 70.33% for V2, and 36.84 and 80.20% for V3, respectively. That means tripartite interactions favor the growth response in association with higher P and N uptake. Finally, it is recommended to apply biofertilizers as the plant-fungi-Rhizobium interactions may have a bigger potential role in maintaining sustainable agriculture with effective environmental resilience.
      PubDate: Thu, 10 Mar 2022 10:20:01 +000
       
  • Effect of Sorghum Mulches on Emergence and Seedling Growth of Beggarticks,
           Goose Grass, and Sesame

    • Abstract: Rotation of sorghum (Sorghum bicolor L. Moench) with sesame (Sesamum indicum L.) in drought prone areas of Zimbabwe has raised concerns on whether these two crops are compatible in the rotational system. This is because sorghum is known to exhibit strong allelopathic effects on both crop and weed species. A greenhouse experiment was conducted to assess the effect of soil incorporated sorghum residues on the emergence and seedling growth of sesame and weeds. The emergence and early seedling growth of sesame and the weed significantly increased with increases in the amount of soil incorporated sorghum residues. Incorporating 27.7 g of the ground sorghum herbage caused a stimulatory effect on the emergence and early seedling growth of the test species. Liquid chromatography-mass spectrometry revealed the presence of 6 probable allelochemicals in sorghum residues, namely, 4-methylaminobutyrate, C16 sphinganine, oleamide, tauroursdeoxycholic acid, pisatin, and anhalonidine. From this study, it can be concluded that dry sorghum residues do not have an inhibitory effect on sesame emergence and growth at mulch rates that retard emergence and growth of weeds.
      PubDate: Mon, 07 Mar 2022 10:50:03 +000
       
  • Changes on Sugar and Starch Contents during Seed Development of
           Synergistic Sweet Corn and Implication on Seed Quality

    • Abstract: Synergistic sweet corn equipped with multiple-recessive genes encoding sugar synthesis is proposed through hybrid breeding to improve the balance eating quality including flavor, texture, and aroma. However, the drawback on seed quality occurs such as low germination and poor seedling vigor. This study aimed to investigate the changes of carbohydrate contents on seed quality of five sweet corn genotypes differing in the number of equipped recessive genes during seed development. Seeds were sampled at 4-day intervals from 18 to 46 days after pollination (DAP) and analyzed for seed germination, sugar, water-soluble polysaccharide, and starch. Then, their relationships were analyzed by using time series regression analysis. Although there were significant differences among 5 corn genotypes in their seed germination and carbohydrate contents, some genotypes showed responses in similar patterns. The optimal time to harvest seeds was genotype-dependent, which were 38 DAP for triple-recessive gene (btbtsh2sh2wxwx) and single-recessive genes (BtBtsh2sh2WxWx and Sh2Sh2susuWxWx) and 42 DAP for double-recessive genes (BtBtsh2sh2wxwx). The regression analysis revealed that seed germinability could be predicted by total starch content in synergistic sweet corn lines during seed development stages; however, this prediction seemed to be negligible in sweet corn genotypes equipped with a single-recessive gene. Implications and further suggestions for establishing an effective seed production technique and seed quality of synergistic sweet corn are discussed.
      PubDate: Mon, 07 Mar 2022 09:35:01 +000
       
  • Wheat (Triticum aestivum L.) Yield and Yield Components as Influenced by
           Herbicide Application in Kaffa Zone, Southwestern Ethiopia

    • Abstract: In order to identify the effect of herbicidal weed control practices on yield components and yield of wheat, the study was conducted at Kocha kebele in Chena district of Kaffa zone, Southwestern Ethiopia. 2,4-D amine salt (0.5 kg ha−1, 1 kg ha−1, and 1.5 kg ha−1) supplemented with one hand weeding 30 days after chemical application, clodinafop-propargyl 6% + fluroxypyr 12% (0.5 kg ha−1, 0.75 kg ha−1, and 1 kg ha−1) supplemented with one hand weeding 30 days after chemical application, pyroxsulam (0.4 kg ha−1, 0.5 kg ha−1, and 0.6 kg ha−1) supplemented with one hand weeding 30 days after chemical application, 2,4-D amine salt at 1 kg ha−1, clodinafop-propargyl 6% + fluroxypyr 12% at 0.75 kg ha−1, pyroxsulam at 0.5 kg ha−1, two hand weeding 30 and 45 days after crop emergence, weed-free check, and weedy check (unweeded) were the weed control treatments. Fifteen treatments were used for the trial and arranged in a randomized complete block design with three replications. The treatments had a significant effect on weed community, dry matter of weeds, parameters on weed control, phenology and growth parameters, and yield components and yield of wheat. The minimum total weed dry biomass was recorded in plots treated with clodinafop-propargyl 6% + fluroxypyr 12% at 1 kg ha−1 + one hand weeding at crop harvest. The highest weed control efficiency (93.30%) and herbicide efficiency index (27.06%) and the lowest weed index (14.18%) were recorded with the application of clodinafop-propargyl 6% + fluroxypyr 12% at 1 kg ha−1 + one hand weeding. Higher number of grains per spike (57.9), 1000-grain weight (39.4 g ha−1), grain yield (3635.6 kg ha−1), biological yield (9004 kgha−1), and harvest index (40.23%) were recorded with the application of clodinafop-propargyl 6% + fluroxypyr 12% at 1 kg ha−1 + one hand weeding 30 days after chemical application, next to weed-free check. Managing weeds with the application of clodinafop-propargyl 6% + fluroxypyr 12% at 1 kg ha−1 + one hand weeding contributed maximum (50,745.2 ETB) net benefit. The application of clodinafop-propargyl 6% + fluroxypyr 12% at1.0 kg ha−1 plus one hand weeding can be recommended to acquire high grain yield of wheat and high economic return in the study site.
      PubDate: Fri, 04 Mar 2022 12:35:02 +000
       
  • Influence of Treated Wastewater on the Percentage of Protein Content
           during Fodder Intercropping

    • Abstract: This study aims to explore the potential use of treated wastewater in irrigating fodder crops and its effects on protein contents. A comparison of the protein contents in intercropped fodder plants irrigated with fresh water, and rainfall water, against those irrigated with treated grey water was performed under Palestinian climate conditions. Field experiments with different intercropping mixing ratios were carried out in 2017–2019 at the National Agricultural Research Centre in Palestine (NARC). Measurements of the nutritional value of each mixture specifically the protein contents were carried out to get the optimal and best conditions for preparing animal feed crops with three different water sources used. For alfalfa with vetch, the best result for protein percentages was (on average) obtained from the rain-fed experiment (17.1% protein) followed by the freshwater experiment (12.9% protein) and then by the treated grey-water experiment (12.6% protein). It appears that the best result for alfalfa with barley for protein percentages was (on average) obtained from the treated grey-water experiment (13.0% protein) followed by the freshwater experiment (11.1% protein) and then by the rain-fed experiment (10.5% protein). Statistical analysis of the data showed that percent protein for each specific mixing ratio resulted in significant differences in the protein % for the those irrigated with fresh water compared with the other types of water. The highest protein % was found to be for that irrigated with fresh water (31.9 for 10/90 alfalfa/barley ratio) followed by that irrigated with treated grey water (28.4 for 20/80 alfalfa/barley ratio) and then for the 30/70 ratio irrigated with treated wastewater (22.5%), and then for the 100/0 ratio of alfalfa/barley irrigated with rainwater (19.0). Overall, results of this study showed that cereal-legume intercropping irrigated with treated grey water can be used as a suitable management strategy for producing high-quality and high-quantity forage. Furthermore, the use of treated water can reduce the already strained demand on fresh water due to increase in population among other factors.
      PubDate: Wed, 02 Mar 2022 05:50:00 +000
       
  • Effect of Mineral Nitrogen, Phosphorus, and Potassium Fertilizers on the
           Productivity of Faba Bean (Vicia faba L.) in Acidic Soils of Wolaita Zone,
           Southern Ethiopia

    • Abstract: Poor soil fertility is among the major factors that limit faba bean production in Wolaita Zone in southern Ethiopia. Therefore, a field experiment was conducted in the Kokate Marachare subdistrict of Sodo Zuria District of the zone during the 2019 and 2020 cropping seasons to determine the response of faba bean to different rates of nitrogen (N), phosphorus (P), and potassium (K) fertilizers under lime-treated soil conditions by using Tumsa faba bean variety. The treatments consisted of three rates of nitrogen fertilizer (0, 23, and 46 kg N ha−1), three rates of phosphorus fertilizer (0, 46, and 92 kg P2O5 ha−1), and three rates of potassium fertilizer (0, 30, and 60 kg K2O ha−1) that were laid out as RCBD and replicated three times per treatment. The results indicated that the N, P, and K fertilizer combination at 23:92:60 kg ha−1 increased plant height, the number of branches per plant, and stem girth by 18%, 62.6%, and 55.6%, respectively, compared with the control treatment. A significantly high aboveground dry biomass (11.8 t ha−1), number of pods per plant (17 pods), number of seeds per pod (4 pods), stover yield (6.83 t ha−1), and hundred seed weight (88 g) were obtained from the N, P, and K fertilizer combination at 23:92:60 kg ha–1. The highest grain yield (4.97 t ha−1) was obtained from the N, P, and K combination at 23:92:60 kg ha−1, which was 360% higher than the yield obtained from the control treatment. Moreover, the highest mean net benefit (USD 4,109.33 ha−1) with an acceptable marginal rate of return of 1,340% was obtained from the N, P, and K fertilizer combination at 23 kg N, 92 kg P2O5, and 60 kg K2O ha–1, respectively. Thus, these rates are suggested for faba bean production in the acidic soils of the Wolaita Zone.
      PubDate: Wed, 16 Feb 2022 13:50:01 +000
       
  • Boosting Chickpea Production by Optimizing Inter-Row and Intrarow Spacing
           at Central Highlands of Ethiopia

    • Abstract: A field experiment was conducted to determine optimum inter-row and intrarow spacing for a higher and economic yield of different chickpea varieties during 2016–2017 cropping season at Debre Zeit and Minjar. The experiment was carried out in a split-plot design replicated three times. The two varieties (Habru and Arerti) were assigned as a main plot and factorial of three inter-row spacing (20 cm, 30 cm, and 40 cm) and three intrarow spacing (5, 10, and 15 cm) as subplot treatments. The result indicated that variety and inter-row and intrarow spacing had a significant effect on yield and yield components of chickpea at both locations. Habru variety gave higher seed and biomass yield than Arerti. The highest seed and biomass yield were recorded for the intrarow and inter-row spacing range of 5–15 × 30–40 cm, respectively. Results of the partial budget analysis showed that the highest net benefit with acceptable marginal rate of return (>100%) was obtained from 10 cm × 30 cm intrarow and inter-row spacing. Therefore, 10 cm × 30 cm intrarow and inter-row spacing (330, 000 plants ha−1) can be recommended for a higher and economically optimum yield of chickpea at central highlands of Ethiopia.
      PubDate: Tue, 15 Feb 2022 08:50:02 +000
       
  • Molecular Determination of Toxigenic Potential of Fusarium spp. Isolated
           from Seeds of Wheat (Triticum aestivum) Genotypes and Evaluation of Levels
           of Fumonisins in the Grains at Harvest in Three Major Wheat Producing
           Counties in Kenya

    • Abstract: Infestation of cereals such as wheat by pathogenic Fusarium species (Fusarium spp.) is associated with over 25% weight loss of the grain and accumulation of hazardous mycotoxins. Potential management strategies against the pathogens include the development of more resistant wheat genotypes and the development of rapid and accurate Fusarium spp. identification methods, among other control measures. This study evaluated the toxigenic potential in populations of Fusarium spp. isolated from seeds of locally developed wheat genotypes and levels of fumonisins in the grains at harvest in three counties in Kenya. The sampling of the wheat grains took place between September 2016 and October 2017. Determination of toxigenic potential was PCR based using Tri13F/Tri13DONR and FUM1F/FUM1R specific primer pairs while detection of fumonisin levels was done using Total Fumonisin Assay 0.25/5.0 ELISA kit. Data were analyzed using ANOVA and the Tukey HSD test. FUM1 gene was detected in 60% of the Fusarium spp. analyzed. The distribution of the gene within the isolates across the three regions was as follows: Narok: 54%, Uasin Gishu: 25%, and Nakuru: 21%. Tri13DON gene was not detected in the assessed potential deoxynivalenol (DON) producers. Fumonisin levels in the wheat samples from the three counties were significantly different (). The highest fumonisin levels, 9.6 ppm, occurred in 30.7% of the grains of the studied wheat genotypes. Relatively high fumonisin levels occurred in Njoro II, Eagle 10, Robin, and Korongo wheat genotypes with no significant difference at 0.05 confidence interval. In conclusion, the toxigenic potential amongst the Fusarium spp. studied was confirmed based on the occurrence of FUM1 gene and the detection of fumonisins in 76% of the sampled wheat grains. More research is recommended to ascertain the prevalence of the genes determining the production of DON and the other trichothecenes in Fusarium spp. prevalent in the developed wheat genotypes in the different agroecological regions in Kenya. In addition, the assessment of the occurrence and levels of the respectful mycotoxins also needs further research. These would provide additional information for the improvement of strategies put in place to manage the effects of the pathogenic Fusarium spp. in the crop and to ensure mycotoxin safety of the wheat food chain for both livestock and human consumption. It also shows the need for the development of more disease-resistant wheat varieties by wheat seed-producing companies.
      PubDate: Tue, 15 Feb 2022 02:20:02 +000
       
  • Prevalence and Socioeconomic Impact of Striga (Striga hermonthica) in
           

    • Abstract: Striga is one of the biotic constraints limiting the production and productivity of sorghum in tropical Africa, particularly in Ethiopia. A field survey was conducted in the eastern and western Hararghe zones in six districts in the 2019 cropping season to investigate the prevalence and socioeconomic impact of the weed. Random sampling was employed to collect the field and socioeconomic data. Data were collected on Striga counts per meter square and per plant, awareness and impression of farmers, prevalence, management used, severity, and collective actions to manage Striga. The data were analyzed using IBM SPSS Statistics version 20. The results showed that two Striga species, Striga hermonthica and Striga asiatica, were observed. However, S. hermonthica was more prevalent than S. asiatica in all the surveyed locations, and its occurrence differed among locations. The maximum levels of S. hermonthica occurrence were recorded at Kile-besidimo (92%), Edobaso (85%), Kufakas (82%), Kotora (80%), Homacho Riana (78%), Bal’ina arba (74%), Dire gudina (72%), Bishan babile (66%), Qufa (65%), Oda Anesso (48%), Ijakechu (45%), Umer kulle (40%), Homacho Eba (38%), and Tofik (35%). Less level of Striga occurrence was recorded at Bareda (29%), Haro Adii (27%), Jiru gemachu (25%), and Homacho dayo (23%) Striga per meter square in assessed fields. S. hermonthica resulted in an estimated yield reduction of 0 to 80% in the surveyed areas. This causes higher economic loss and incurs social instability in the region. According to the farmers, hand weeding, legume intercropping, crop rotation, and resistance varieties were the most popular control measures to reduce Striga infestations. From this survey, it can be concluded that S. hermonthica is easily disseminated by different dispersal mechanisms and the major constraint of sorghum production in both zones. Therefore, it can be recommended that integrated management options be employed to reduce Striga infestation and the socioeconomic impact of Striga in the future.
      PubDate: Mon, 14 Feb 2022 09:05:00 +000
       
  • Positive Response of Hyoscyamus pusillus Callus Cultures to Exogenous
           Melatonin on Biochemical Traits and Secondary Metabolites under Drought
           Conditions

    • Abstract: There is increased attention from specialists toward producing natural compounds from plant tissues through the combined use of elicitors. The present study investigated the effects of melatonin treatment in normal and drought stress conditions for sustainable production of biomass and secondary antioxidant metabolites in a Hyoscyamus pusillus four-month-old callus cultures. For this purpose, we used multiple concentrations of melatonin (0, 0.5, 1.0, 1.5, and 2.0 mg l−1) to assess its ability to improve growth, physiological, and biochemical properties of H. pusillus. There was two drought stress levels (0 and 30 g l−1) of polyethylene glycol (PEG). It was harvested in 28 days. The results showed a significant decrease with an increase in the concentration of PEG treatment in growth and physiological traits compared to the results of those samples when treated with melatonin. Results showed an increase in oxidative stress in tissue treated with PEG due to a significant increase in the content of hydrogen peroxide (H2O2) and malondialdehyde (MDA). The decreased oxidative stress was associated with an increased antioxidant enzyme activity superoxide dismutase (SOD), and catalase (CAT) in the samples was treated by melatonin, which resulted in increased membrane stability index (MSI) and enhanced growth traits under the PEG treatment compared to the control. By reducing the activity of phenylalanine ammonia-lyase (PAL) and peroxidase (POX), moisture tightening increased the production of phenolic compounds (PC) and flavonoid compounds (FC) in callus cultures, and high concentrations of melatonin were combined with them to improve their production. Therefore, it can be asserted that a moderate treatment with melatonin is more suitable under water stress conditions to produce secondary compounds from H. pusillus.
      PubDate: Thu, 03 Feb 2022 10:20:00 +000
       
  • Physiological and Molecular Response of Wheat Cultivars to Titanium
           Dioxide or Zinc Oxide Nanoparticles under Water Stress Conditions

    • Abstract: A field trial was conducted through two successive winter seasons 2017/2018 and 2018/2019 to evaluate the influence of TiO2 or ZnO nanoparticles on two wheat cultivars (Gimeza 12 and Sids 13) under different water irrigation requirements of 100% (WW) and 75% (WS). The results showed that drought stress decreases morphological parameters, photosynthetic pigments, and wheat yield (ha−1). However, the total soluble sugars, total free amino acids, proline content, and water productivity were increased. Application of TiO2 or ZnO nanoparticles declines the negative influence of water deficit. Furthermore, SDS-PAGE revealed in Gimeza 12 treated with TiO2 or ZnO nanoparticles, it stimulates the appearance of some proteins at the MW of 28 kDa in WW and WS, while in WS, it records the new polypeptide at 18 kDa. Moreover, Gimeza 12 treated with nano-TiO2 led to the disappearance of two bands at 163 and 51 kDa in WS. However, for Sids13, there was no difference between the treatments in WW and WS except in nano-ZnO at WS that disappeared the polypeptides at MWs of 163, 51, and 18 kDa. Primer SRAP results showed that the plants treated with TiO2 or ZnO nanoparticles had a minor effect at the genomic DNA level, which was illustrated by the appearance or absence of some bands. Besides, the low concentrations of nanoparticles did not damage DNA. On the other hand, one negative marker of −233 bp disappeared in the Gimeza 12 cultivar treated with WS + nano-TiO2 and was revealed in the other treatments using primer SRAP-2. The results showed that the Gimeza 12 cultivar which had the highest grain yield was more tolerant to drought than the Sids 13 cultivar.
      PubDate: Wed, 02 Feb 2022 06:50:01 +000
       
  • Agronomic Performance, Variance Components, and Clustering in Vernonia
           galamensis Germplasm from Ethiopia

    • Abstract: This study was conducted to assess the agronomic performance, variance components, and clustering analysis of 80 accessions of Vernonia galamensis, in alpha-lattice design with two replications at Melka Werer and Wondo Genet agricultural research centers in 2018/19. The one-way ANOVA showed that the high significant variation () for most of the quantitative traits among accessions except for days to emergence, and the mean performance of seed yield per hectare ranged from 348.9 to 624.3 kg ha−1, with an average of 474.4 kg ha−1. The result of principal component analysis indicated that those exhibited more than one eigenvalue were about 71.0% of variability. While the cluster analysis based on 80% of similarity into eight clusters from the eighty accessions, the first cluster had the largest number of accessions. Overall, the study confirmed that the agromorphological characters such as the number of heads per plant, number of seeds per head, seed yield per plant, and seed weight per plot were the main contributors for seed yield per hectare in V. galamensis.
      PubDate: Tue, 01 Feb 2022 04:50:01 +000
       
  • The Effect of Rainfall, Temperature, and Relative Humidity on the Yield of
           Cassava, Yam, and Maize in the Ashanti Region of Ghana

    • Abstract: This study examined the consequences of changes in minimum temperature, maximum temperature, relative humidity, and rainfall on the yields of maize, cassava, and yam per hectare of land in the Ashanti Region of Ghana. Correlation analysis of each climatic condition on the yield of each crop per hectare of land revealed that each of the climatic conditions was significant in predicting the crop yields. Separate multiple linear regression models were obtained for crop yield per hectare of land under all the climatic conditions. The regression models showed that an increase in maximum temperature reduces the yield of all the crops, whereas an increase in minimum temperature reduces only the yield of maize. Increases in relative humidity reduce the yield of maize alone, while increases in rainfall reduce the yield of only cassava. The significant multiple linear regression model for each crop yield indicated that 63.8% of the variations in the yield of maize per hectare of land, 74.3% of the variations in the yield of cassava per hectare of land, and 64.2% of the variations in the yield of yam per hectare of land are accounted for by minimum temperature, maximum temperature, relative humidity, and rainfall. We encourage the Government of Ghana, the Ministry of Food and Agriculture, and all stakeholders in the agriculture sector to increase their campaign on the consequences of climate change on the yield of these crops. They should educate farmers on the effects of overreliance on rainfed and traditional agricultural methods, introduce them to modern methods of agriculture, and provide them with varieties of these crops with higher-yielding capacities in higher temperatures.
      PubDate: Mon, 24 Jan 2022 12:05:01 +000
       
  • Effect of Plant Spacing on Agronomic Performance and Fodder Quality of
           Four Tepary Bean (Phaseolus acutifolius A. Gray) Cultivars

    • Abstract: Tepary bean is gaining interest around the world as a dryland field crop. A two-year field experiment was conducted to determine the effect of plant spacing on the agronomic performance and fodder quality of the crop. A split-plot design was used with three replications, four cultivars (GK010, GK011, GK012, and Motsumi) were assigned to main plots, while subplots were three intrarow plant spacing (10 cm, 20 cm, and 30 cm). Four agronomic variables and eight chemical compositions, including in vitro dry matter digestibility (IVDMD) of husk, stem, and leaf, were measured. Spacing significantly () influenced plant biomass, pod yield, harvest index, and seed yield, while cultivar affected only pod yield and seed yield. Plant biomass increased with plant spacing where 10 cm produced 936 kg/ha; 20 cm, 750 kg/ha; and 30 cm, 611 kg/ha for 2015–2016 while 10, 20, and 30 cm were observed for 1568 kg/ha, 1135 kg/ha, and 889 kg/ha, respectively, in 2016–2017 season. These trends are attributed to the higher plant population in the narrow row spacing. GK012 consistently outperformed other cultivars for plant biomass, pod yield, and seed yield and has a potential for further selection. Fodder nutritive qualities were not affected by cultivar, while spacing only influenced IVDMD. The three plant parts were significantly () different for all the nutritive qualities. Leaves had significantly () lower values of ADF, CF, and NDF compared to those of stem and husk an indication of relatively higher digestibility of the leaf. Acid detergent fiber (40%), neutral detergent fiber (53.65%), crude fiber (35.45%), ash content (12.29%), dry matter (93.09%), and IVDMD (70.66%) were recorded. This study revealed that tepary bean forage has good nutritional content, except for the low phosphorus level. For higher agronomic performance, tepary cultivars should be planted at a spacing of 10 cm without compromising forage quality.
      PubDate: Wed, 19 Jan 2022 10:05:03 +000
       
  • Evaluation of Nutrient Requirements of Sweet Lupine in Bread Wheat-Sweet
           Lupine under Additive Design Intercropping System in Northwest Ethiopia

    • Abstract: The application of optimal fertilizer rates for component crops improves productivity, land use efficiency, and profitability in an intercropping system. Two field experiments during the 2019 and 2020 cropping seasons were conducted in Adet and Debre Tabor districts with the objective of evaluating the nutrient requirements of sweet lupine in bread wheat-sweet lupine under additive design intercropping systems. Sweet lupine grown in bread wheat-sweet lupine intercropping was fertilized with seven fertilizer levels (0%, 25%, 50%, 75%, 100%, 125%, and 150% of the blanket-recommended NP fertilizer rate of sole lupine) and laid out in a randomized complete block design with three replications. The findings revealed that the highest grain yield of sweet lupine in wheat-sweet lupine intercropping system at Adet was achieved at 125% NP (0.51 t·ha−1) and 150% NP (0.52 t·ha−1), followed by 100% NP (0.43 t·ha−1) and 50% NP (0.35 t·ha−1) fertilizer levels of sweet lupine. Similarly, the highest grain yield of sweet lupine in Debre Tabor was recorded by the application of 125% NP (2.07 t ha−1) fertilizer level of sweet lupine followed by 150% NP (1.89 t·ha−1), 100% NP (1.71 t·ha−1), and 50% NP (1.70 t·ha−1) fertilizer levels. For every invested Ethiopian Birr in the treatments of 50% and 125% NP fertilizer levels of sweet lupine averaged additional profits of ETB 7.667 and ETB 4.537, respectively, can be obtained from sweet lupine that grew under bread wheat-sweet lupine intercropping system. Based on the averaged MRR across the different cost price ratio, application of 50% NP fertilizer level of sweet lupine can be recommended for profitable production of sweet lupine in bread wheat-sweet lupine under additive design intercropping system in Adet and Debre Tabor and areas with similar agroecology as it recorded the highest net return with acceptable marginal rate of return.
      PubDate: Tue, 18 Jan 2022 05:35:03 +000
       
  • The Effects of Calcium Fertilizer Sprays during Fruit Development Stage on
           Pineapple Fruit Quality under Humid Tropical Climate

    • Abstract: Low calcium content in pineapple could decrease its quality, such as fruit translucency (electrolyte leakage), bruises (fruit firmness), and the other fruit quality standards. The purpose of the current study was to assess the effect of different sprays of calcium (Ca) fertilizer sources during the fruit development stage on the overall fruit quality. Four sources of calcium, chelated calcium, calcium nitrate (Ca(NO3)2), calcium chloride (CaCl2), each in 75 kg ha−1, and calcium boron (calcibor) of 10 L ha−1 mixed with 2000 L water, were directly sprayed onto individual fruit and crown, 75, 85, 95, and 105 days after forced flowering induction (forcing). The Smooth Cayenne “MD-2” pineapple cultivar was utilized for the experiment in a randomized complete block design with four replications and conducted at two different times. Fruit quality analyses were carried out on the harvested fruits 140 days after forcing. The application of calcium sprays did not have significant effects on fruit , total soluble solids, total acidity, fruit firmness, and the content of sucrose and vitamin C. There was a different response of calcium spray in the first and second trials on the content of glucose, fructose, β-carotene, Ca, and Mg, probably due to climate condition. All treatments with calcium sprays reduced the fructose and glucose contents in the first trial and β-carotene content in the second trial. Calcium chloride and calcibor increased Ca and decreased electrolyte leakage significantly than the other treatments. The scanning electron microscope analysis revealed that CaCl2 sprays generated greater turgor and more rigidity in the pineapple cell wall. The result showed that the application of CaCl2 and calcibor sprays could decrease electrolyte leakage incidence in pineapple with any potential to reduce glucose, fructose, and β-carotene without influencing other fruit qualities significantly.
      PubDate: Mon, 17 Jan 2022 06:05:02 +000
       
  • Essential Oils as Biocontrol Agents of Early and Late Blight Diseases of
           Tomato under Greenhouse Conditions

    • Abstract: Tomato production worldwide is usually restrained by various infections, among them mainly the late and early blight caused by Phytophthora infestans and Alternaria solani, respectively. Lately, there has been a growing concern over the use of synthetic fungicides on environmental and food safety, hence the need to explore other alternatives that are friendly to the user, the consumer, and the general environment. This research sought to test the potency of ginger, garlic, and Mexican marigold essential oils against the early and late blight diseases of tomato under greenhouse conditions. A synthetic fungicide (Ridomil Gold®) was used as a positive control while distilled water acted as a negative control. The extraction of essential oils was done by dry steam distillation and then mixed with tween twenty before being topped up with sterile distilled water. They were then used to spray tomato plants that had been inoculated with A. solani and P. infestans isolates under greenhouse conditions. The tomato plants were evaluated for growth, yield, and disease severity. The data obtained was subjected to ANOVA and separation of means was conducted using Student–Newman–Keul (SNK) test at 95% level of confidence. The three essential oils had a significant potency against the two diseases which is comparable to the synthetic fungicide. Marigold essential oil was also found to have a significant impact on the general growth of sprayed tomato plants. Essential oils of the three plants can be further explored as alternative products management of the two diseases.
      PubDate: Sun, 26 Dec 2021 05:20:02 +000
       
 
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