Asian Journal of Research in Crop Science 2020-07-03T04:59:22+00:00 Asian Journal of Research in Crop Science Open Journal Systems <p style="text-align: justify;"><strong>Asian Journal of Research in Crop Science <span style="text-align: justify;">(ISSN: 2581-7167)</span></strong> aims to publish high quality papers (<a href="/index.php/AJRCS/general-guideline-for-authors">Click here for Types of paper</a>) on all aspects of Crops. This journal facilitates the research and wishes to publish papers as long as they are technically correct, scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer reviewed, open access INTERNATIONAL journal.</p> Variation in Yield and Yield Components of Tropical Forage Grass Species Evaluated in the Southern Guinea Savanna of Nigeria 2020-07-03T04:59:22+00:00 G. O. S. Ojo H. Madu A. I. Okwori <p>Seven improved tropical grass species, namely, <em>Andropogon gayanus </em>Kunth.<em>, Brachiaria ruziziensis </em>Germain &amp; Evrard, <em>Cenchrus ciliaris </em>L.<em>, Chloris gayana </em>Kunth<em>, Panicum maximum </em>var. coloratum C.T<em>, Paspalum orbiculare </em>G. Forstand<em> Sorghum almum </em>Parodi were evaluated for yield and yield components at the Teaching and Research Farm of the Federal University of Agriculture, Makurdi, Nigeria in 2015 and 2016. The experiment was laid out in a randomized complete block design with three replications in each of the years. Results showed that the evaluated grass species could be cut at an early age when the leaf: stem ratio is high enough for the ruminants to derive maximum nutritional benefit and need not be delayed till 16 weeks after planting. The highest correlation between plant height and grain yield was observed at 4 weeks (r = 0.69) and 8 weeks (r = 0.70) after planting, implying that the taller the plant species at this stage of growth, the higher the probability for high grain yield. Identification and selection of tropical grass species for improvement in grain production should, therefore, be carried out between 4 and 8 weeks of growth. All the seven tropical forage grass species performed favourably well in terms of growth and yield, with the positive response to increasing rainfall and further studies on multi-location evaluation within the Southern Guinea Savanna agro-ecologicalal zone of Nigeria is recommended.</p> 2020-04-18T00:00:00+00:00 ##submission.copyrightStatement## Genotype by Environment Interaction of Cotton Genotypes for Seed Cotton Yield in Zambia 2020-07-03T04:59:19+00:00 Martin L. Simasiku Davies M. Lungu Langa Tembo <p>Cotton (<em>Gossypium hirsutum L.</em>) is an important cash crop in Zambia. The national seed cotton yield (SCY) per hectare ranges from 200-500 kg/ ha as compared to the potential of up to 2500 kg/ ha. Understanding the specific performance of several genotypes across different environments is an option, which may maximize specific genotypic performance. In addition, the performance of specific environments if known concerning specific and mean genotypic performance may guide the breeding approaches to these environments. This study therefore investigated the presence of SCY mega-production environments in Zambia and delineated the environments and identified the ideal test environment capable of discriminating yield differences among genotypes. Thirty (30) genotypes, were planted following a 6 x 5 lattice design with three replications in seven environments of Zambia. Additive main effects and multiplicative interaction (AMMI) model and genotype plus genotype by environment (GGE) biplot were used to explore the genotype by genotypic environmental interaction (GEI). Three mega environments (M1, M2 and M3) were identified. Genotype G27, G26 and G28 were the best performing genotypes in M1, M2 and M3 with overall mean SCY of 1416, 1320 and 960 kg/ ha respectively. Among the locations, Masumba was identified as an ideal test environment with mean SCY of 1249 kg/ ha. Therefore, testing seed cotton genotypic yield and selecting desirable genotypes in Masumba may be sufficient for evaluation.</p> 2020-05-30T00:00:00+00:00 ##submission.copyrightStatement## Efficacy Trial of AgroSuper (2, 4-D Dimethyl Amine Salt 720G/L SL) on Sorghum Broad Leaf Weed 2020-07-03T04:59:17+00:00 Dawit Fisseha <p>Sorghum is susceptible to weed competition at its early stage of growth. The aim of this efficacy trial was to ensure that candidate chemical AgroSuper verification on a selective and effective control of broad leaf weed on Sorghum, after sorghum germination. RCBD with three replication experiment was carried out in Humera area in Humera Agricultural Research Center and Desta Berhe farm during 2019 rainy growing season using sorghum variety called Brhan. Pre and post spray weed count were subjected to efficacy calculation. Finally, new product of herbicide, AgroSuper (2, 4-D dimethyl amine salt 720G/L SL) 1.5 liter using 200-liter water solution per hectare was shown better performance than the standard check Aura 72SL. Therefore, the new AgroSuper could be suggested as an alternative selective herbicide during post-emergency to kill broad leaf weeds of sorghum.</p> 2020-06-15T00:00:00+00:00 ##submission.copyrightStatement## Seed Priming Methods: Application in Field Crops and Future Perspectives 2020-07-03T04:59:20+00:00 Mohammad Saidur Rhaman Farjana Rauf Shaila Shermin Tania Mousumi Khatun <p>To reach in good plant stand, the life cycle of plants is faced with different critical stages such as uneven seed germination, poor and early seedling growth which ultimately results in low crop yield. It is well known that seed priming enhances germination, reduces seedling emergence time, and improves yield and yield contributing characters of plants. Seed priming is a physiological technique of seed hydration and drying to improve the metabolic process prior to germination to fasten the germination, seedling growth, and crop yield under normal, as well as different biotic and abiotic stress conditions. Many researchers have done a lot of research on seed priming in field crops to enhance the final yield. However, different priming methods and their application in field crops are poorly described. Therefore, this review paper discusses seed priming and its different methods and their application in field crops as well as future perspectives of seed priming.</p> 2020-05-25T00:00:00+00:00 ##submission.copyrightStatement##