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Open Agriculture Journal
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This is an Open Access Journal

Open Access journal
ISSN (Online) 1874-3315
Published by Bentham Open

[69 journals]

Application of Spray-dried Microcapsules of Purslane ( L.) Seed Oil
Enhances Quality of Mango Juice
- Abstract: Introduction:Purslane ( L.) seeds oil are a non-traditional alpha-linolenic acid source (ALA), which is an omega-3 fatty acid. This study aimed to evaluate the physicochemical and sensory properties of mango juice fortified with purslane seed oil (PSO) microcapsules.Materials and Methods:Gum Arabic (GA) and maltodextrin, as wall-materials, were used in the microencapsulation of PSO by spray drying technique. The spray-dried microcapsules were added to the mango juice (200 mL) at the levels of 0.5, 1 and 1.5 g, ALA. Physicochemical properties such as viscosity, total soluble solids (TSS), pH and titratable acidity were measured, as well as sensory evaluation, during 28 days' storage at 4.0 ±0.5°C.Results:Our study indicated that the microencapsulation of PSO by spray drying resulted in the best microencapsulation yield (85.17%) as well as the microencapsulation efficiency (77.40%). The pH and TSS of four juice samples ranged from 3.0 to 3.6 and from 18.8 to 19.1 Brix°, respectively. In addition to that, storage periods had no significant effect on them.Conclusion:According to the findings presented in this paper, it has been concluded that the nutritional value of mango juices was enhanced by the addition of microencapsulated PSO as a source of ω-3 fatty acids.
Isolation, Identification and Test for the Biocontrol Potential of on f.
sp.
- Abstract: Introduction:Tomato production in Ethiopia is challenged by many pests and diseases. Fusarium wilt is one of the most important diseases of tomato affecting its productivity. Methods:Tomato tissue and soil samples were collected from tomato farmlands around Aksum town to isolate and identify pathogenic species and species with biocontrol efficacy. Samples were processed in the Aksum University Biotechnology laboratory following standard procedures.Results and Discussion:Eight and five isolates were obtained. Six of the isolates were identified as whereas the remaining two were and . Detached leaf bioassay of the on tomato leaves showed leaf lesion on the tomato variety, Melka oda. The isolated strains were screened for biocontrol potential against virulent . The isolate showing the highest biocontrol efficacy against the virulent was morphologically identified as . - dual culture assay demonstrated that inhibits the growth of f.sp. lycopersici with 76.94% growth inhibition.Conclusion: is prevalent in tomato growing farmlands covered in this study. identified in this study is an effective biocontrol agent for the identified fsp. .
Genetic Diversity of Omani Durum Wheat ( sub sp. ) Landraces
- Abstract: Introduction:The Sultanate of Oman is rich in diversity of the most important crops like wheat, which not only has a global significance but is also regarded as one of the strategic crops in the country. The country has an ancient cultivation history of both bread wheat ( L.s.l.) and durum wheat ( sub sp. ) because of its characteristic location on the eastern edge of the Arabian Peninsula. Wheat landraces constitute the prime genetic resources of cultivated wheat not only in Oman but also in several MENA (the Middle East and North Africa) countries. Indigenous landraces have paramount significance for their potential utilization in crop improvement and conservation programs. Hence, the present study was undertaken to subject 17 indigenous durum wheat accessions for analyses of diversity to select parents for hybridization in national crop improvement programs.Materials and Methods:The trial was conducted consecutively for two cropping seasons (2017-2018 and 2018-2019) during winter from November to March on the layouts of a loamy soil site under sprinkler irrigation system in Augmented Design with five check varieties replicated five times randomized and distributed throughout the experimental area under spacing and crop husbandry practices as per national recommendations. The data on 9 quantitative (Plant descriptors) and 6 qualitative traits on the presence (score 1) or absence (score 0) of pigmentation on 6 plant parts were collected. These traits were subjected to both Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) to comprehend the contribution of these characters towards diversity and form prime diverse clusters from 17 indigenous durum wheat landraces to select appropriate parents for crossing.Results:The results indicated that indigenous durum wheat accessions were significantly different (p>0.05) with respect to all the quantitative characters except the number of tillers. Of 36 combinations of associations among 9 agro-morphological characters’ studied, only six correlations involving four characters . tiller no., spikelets/ spike, grains/spike, and grain length were found significant (p
Maximizing the Rice Yield ( L.) using NPK Fertilizer
- Abstract: Background:Rice has become a primary daily necessity for mostly Indonesian population. The upsurge of national rice production can be done by agricultural intensification through the application of NPK fertilizer.Objective:This study aimed to determine the optimum dose of NPK Mutiara fertilizer, which could provide the highest rice yield of Ciherang variety in Alluvial soil.Methods:This study was a single factor arranged in a completely randomized design (CRD) with three replications. The NPK Mutiara fertilizer treatment consisted of four doses, , 0, 160, 320, and 480 kg ha‾. The data observations were analyzed by using analysis of variance (ANOVA) at 5% significance levels. The difference between the averages of the treatment was compared using Duncan′s new multiple range test (DMRT) at 5% significance levels.Results:The results of the research showed that the application of NPK Mutiara fertilizer could increase the growth and yield of the Ciherang variety in Alluvial soil. The quadratic regression analysis revealed that the optimum dose of NPK Mutiata was obtained at 656 kg ha‾ with the maximum grains dry weight of 4.26 tons ha‾. The application of NPK Mutiara fertilizer could not affect the shoot root ratio and panicle length.Conclusion:The findings of the study suggest that the application of NPK fertilizer interval has not reached the optimum dose in Alluvial soils for the Ciherang variety. Therefore, application of NPK Mutiara fertilizer with doses higher than 480 kg ha‾ is required for alluvial soils.
Performance, Phyto-nutritional and Bio-active substances of Sweet Pepper
() in response to Soil Applied Organic and Inorganic Sources of N
Fertilizers
- Abstract: Background:Soil health is an important factor for producing a higher yield and obtaining good quality products. Nitrogen fertilizer is one of the most important and valuable agricultural inputs for increasing crop production.Objective:Experiments were conducted in 2017 and 2018 in the cropping seasons to determine the performance and nutritional qualities of sweet pepper in response to organic and inorganic sources of N fertilizers.Methods:Ten kilograms (10 kg) capacity black polythene bags were filled with topsoil and were arranged randomly on the field. Treatment combination included: - 0 NPK + 0 PM (T), 40 NPK + 0 PM (T), 32 NPK + 8 PM (T), 24 NPK + 16 PM (T), 0 NPK + 40 PM (T), 8 NPK + 32 PM (T), 16 NPK + 24 PM (T) and 20 NPK + 20 PM (T). Experiments were laid out in a completely randomized design and were replicated four times. Vegetative, flowering, and quality parameters were collected and analyzed using the GenStat Discovery, 2014 statistical analysis software. Separation of means was determined by the Duncan Multiple Range Test (DMRT) at a probability level of 5%.Results:Results indicated that high rates of an organic source of N fertilizer produced higher values for vegetative and yield parameters, which was similar to the sole application of inorganic fertilizer. There was no significant effect of the sole application and combined organic and inorganic sources of N fertilizer on heavy metals and nitrates accumulation, but their effects were able to increase the values for nitrites above the recommended limits as suggested by the Joint FAO/WHO Expert Committee on Food Additives.Conclusion:Our results showed that 20 NPK + 20 PM is the best treatment without any health implications in the study area, which also improved the yield and, therefore, can be considered economical.
Evaluation of Heat Distribution for the Diagnosis of the Hoof with Abscess
by Infrared Thermography in Horses
- Abstract: Background: The study of normal temperature distribution for the diagnosis of hoof disease in horses using Infrared Thermography (IRT) is rare, therefore, the normal temperature distribution is to be investigated. In this study, we investigated the possible use of IRT in the diagnosis of hoof disease in horses.Methods:A total of 66 horses (56 healthy horses and 10 horses with hoof abscess) were used in this study. Veterinarians and farriers performed physical examinations, such as lameness examination, palpation, hoof test, and radiography, on all horses. IRT was performed in standard conditions. The plantar of the hoof was lifted upward by the owner, and the distance of the thermal camera between the plantar of the hoof was 0.3 - 0.5 m. For evaluation, the heat pattern of the plantar of the hoof was divided into seven regions of interest (ROIs), and statistical analysis was performed.Results:On performing IRT, the temperature of healthy hooves and hooves with hoof abscess was found to be 25.77 °C ± 3.87 °C (mean ± SD) and 31.94 °C ± 2.60 °C, respectively (p < 0.0001). The mean temperature of ROIs in hooves with abscesses was 6.17 °C higher than that of healthy hooves. Sole regions were found to be especially prominent. Additionally, all ROIs of hooves with hoof abscess classified IRT with high sensitivity (74.3%) and specificity (87.5%).Conclusion:The present study demonstrated the usefulness of IRT in diagnosing hoof with abscess. Moreover, this study suggests that IRT may be useful as a new temperature measurement analysis system in terms of determining differences in the heat distribution of the hoof.

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