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Journal of Horticulture and Plant Research
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2624-814X
Published by SciPress Homepage  [11 journals]
  • Agro-Morphological Characterization of Sweet Potato Genotypes Grown in
           Different Ecological Zones in Kenya

    • Abstract: Publication date: 22 January 2019
      Author(s): L.A. Ochieng
      A main characteristic of sweet potato [Ipomoea batatas (L.) Lam.] is its high phenotypic and genotypic variability. There is no, or limited, information on suitability of agro-morphological characteristics for utilization in production and processing. Currrently, farmers are growing different sweet potato genotypes characterized with low yield. The aim of the study was to evaluate agro-morphological characteristics of 68 sweet potato genotypes in order to determine the best performing ones. The sweet potato genotypes were grown at the Kenya Agricultural and Livestock Research Organization and the Embu and Miyare Agriculture Training College. The locations were chosen because they are the main sweet potato producing areas with different climatic and production conditions. Six storage root and five aerial characters were used in the characterization. The genotypes differed in storage root stalk and root length; vine internode length and vine internode growth rate; petiole length and leaf size, and yield at both sites. Genotype Nyautenge was the best performing in terms of storage root yield. There was poor correlation among agro-morphological attributes. The study demonstrates the potential of some sweet potato genotypes such as Nyautenge for high productivity.

      PubDate: Tue, 22 Jan 2019 00:00:00 +010
  • Phenotypic Performance of Rice (Oryza sativa L.) Populations Induced by
           the MNU Mutant on the Adaptive Characteristics

    • Abstract: Publication date: 22 January 2019
      Author(s): Truong Thi Tu Anh, Tran Dang Xuan, Can Thu Huong, Tran Dang Dat
      Mutation is an impressive method to induce potent characteristics in rice breeding. Evaluation on the phenotypic perfomance in mutant populations is important to examine the effectiveness of mutation. In this study, two rice populations of MNU ((N-methyl-N-Nitrosourea) -induced mutants were used to evaluate their phenotypes. The results showed that all of varieties and mutants expressed their ability to adapt with new environment condition via phenotypic expression. Grain yield of them ranged from 6.18 to 10.70 tons/ha. In general population S/TB performed their best characters. The distribution of related traits to grain yield and amylose content were also different from each population. It was observed that mutants expressed better characters than their parents. This study provided general information on phenotype of rice mutants and varieties in new environmental condition and revealed better adaptive characteristics of rice mutants. Findings of this study confirmed the the efficacy of MNU in rice breeding.

      PubDate: Tue, 22 Jan 2019 00:00:00 +010
  • Effectiveness of Phosphorous Fertilizers in Wheat Crop Production in

    • Abstract: Publication date: 22 January 2019
      Author(s): Aftab Jamal, Muhammad Fawad
      Phosphorus is that element of periodic table, which is extensively found in nature and along with Nitrogen (N) and potassium represents the overall composition of plants and animal life. Phosphorus performed different metabolic activities in plants and is one of the key elements for the maturation of plants and boosting up the larger quantities. As it has a vital role in the metabolism and energy production reaction and can survive the unfavorable environmental effects so cause increase in yield. A research review was carried out on the effectiveness of P fertilizers on wheat crop in Pakistan. Almost all of the researchers in all areas indicated that P fertilizers significantly improved the growth as well as yield parameters of wheat crop. But the optimum rate of P fertilizer at which highest yield recorded was different for each area, soil and environmental condition. Although these findings on P fertilization representing many capable results regarding to yield and yield components of wheat but still further research is strongly recommended to evaluate the dynamics of P in soil as well as the interaction effect of P with other micro and macro nutrients.

      PubDate: Tue, 22 Jan 2019 00:00:00 +010
  • Influence of Harvest, Processing, and Substrate in the Germination of
           Dalbergia nigra Seeds

    • Abstract: Publication date: 22 January 2019
      Author(s): Leonardo Regnier
      Dalbergia nigra is a Brazilian native species with relevant economic and ecological roles. Due to its indiscriminate exploration is an endangered species. Besides the great demand for seedling production, only a few aspects of D. nigra germination have been explored. Thus, this study aimed to determine how harvesting immature fruits, fruits processing, and substrate could influence Dalbergia nigra germination process. Five thousand immature, and five thousand mature fruits evenly distributed between two replicas of each of tree 3 treatments; integral fruits, fruits with edges cut, and direct seed sowing in vermiculite. Seeking to evaluate substrate influence over germination, 252 seeds were strewed in the prepared organic substrate. No fruits harvested in visually green appearance did germinate under any of treatments. Integral fruits and cut procedure presented the same time for the first germination, almost two times the amount observed to direct seeds sowing. Besides that, the germination rate was not statistically affected. We found that different substrates also influence the germination pattern, as seen to seed processing when using vermiculite as a substrate, germination starts earlier but the germination rate was not statistically affected. Harvest of Dalbergia nigra green fruits is not an adequate procedure seeking seedling production. The reduction on germination time and better seedling quality, indicate that direct seed sowing procedure is adequate seeking seedling production. Vermiculite substrate gave better results, reducing the time required to germination process. Besides that, this substrate did not affect the germination rate during this study period.

      PubDate: Tue, 22 Jan 2019 00:00:00 +010
  • Improvement Salt Tolerance of Safflower Plants by Endophytic Bacteria

    • Abstract: Publication date: 22 January 2019
      Author(s): Khulod A. Hemida, Amany M.M. Reyad
      Salinity is one of the most dangerous environmental limiting factors of the plant productivity. A wide range of adaptation strategies is required to overcome salinity stress. However, such strategies seem to be long drawn and cost-intensive. It has been confirmed in recent years that plant growth promoting endophytes (PGPEs) that have the ability to further build a symbiotic association with their host to improve host plant salt tolerance. In our investigation try to improve plant salt tolerance using different species of endophytic bacteria. From the total eight endophytic bacterial species were isolated from root, stem, and leaf of Carthamus tinctorius (safflower) plant, two isolates were capable of using 1-aminocyclopropane-1-carboxylic acid (ACC) as a sole nitrogen source, and they are of positive results for (ACC) deaminase activity and indole-3-acetic acid (IAA) production. The bacterial isolates were identified using 16S ribosomal DNA technique as Bacillus cereus and Bacillus aerius and had accession numbers MG708176 and MG711593 respectively, by submitting their sequences in GenBank database. This study showed that the bacterial strains B. cereus and B. aerius are valuable biological plant growth promoters that could enhance salt tolerance in Safflower plants under 100, 200, and 300mMNaCl levels resulting in an increase in plant growth and ascorbate-glutathione redox cycle, in comparison with the non-inoculated controls. Our findings reported that the co-inoculation of the two selected endophytic bacteria strains were successfully isolated from Safflower seedlings significantly alleviated the harmful effects of salt stress, promoted plant growth and biomass yield.

      PubDate: Tue, 22 Jan 2019 00:00:00 +010
  • Response of Pot Marigold to Different Applied Levels of Humic Acid

    • Abstract: Publication date: 22 January 2019
      Author(s): Sohail Ahmad, Junaid Alam Khan, Aftab Jamal
      A research study was conducted to determine the effects of different dozes of humic acid on growth and yield of marigold at Horticulture Nursery University of Haripur, Khyber Pakhtunkhwa, during spring season. The experiment was laid under Completely Randomized Design with 05 replications and 08 pots pre replications were used. The treatments of humic acids were (T1= control, T2= 250, T3= 750, T4= 1000 ml/L respectively). Significant differences were found in treated flowers. The higher values were noted in leaf length, number of flowers plants, flower width, and flower length. The higher values of leaf length (7.4 cm), number of flowers plant (2.9), flowers width (9.92 cm) and flowers length (20.18 cm) were found by the application of 750 mg of humic acid. However the maximum number of flowers per plant was (5), flower width (1.48 cm) and flower length (3.28 cm) were found with the application of 1000 mg humic acid.

      PubDate: Tue, 22 Jan 2019 00:00:00 +010
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