Diversity study of Cowpea genotypes for fodder traits
| dc.contributor.advisor | Nilanjaya | |
| dc.contributor.author | Kumari Pragati | |
| dc.date.accessioned | 2020-11-04T10:30:38Z | |
| dc.date.available | 2020-11-04T10:30:38Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | The present research programme entitled “Diversity Study of Cowpea Genotypes for Fodder Traits’’ was conducted with 23 cowpea genotypes collected from various places across the country in the research farm of Dr. RPCAU, Pusa during the kharif season of 2019. The material was assessed using RBD (randomized block design) in 3 replications. Fifteen traits were selected for present study viz. number of days to 50% flowering, height of the plant (cm), no. of leaves/ plant, leaf length (cm), leaf width (cm), stem thickness (cm), leaf-stem ratio, dry matter %, leaf fresh weight/ plant, dry weight of stem/ plant (kg/plant), production efficiency (q/ha/day), relative water content, seed yield/ plant (gm), dry matter yield (kg/plant), green fodder yield /plant (kg/plant). ANOVA exhibited significant MSS values due to genotype for all traits, indicative of the presence of ample amount of variability in the cowpea genotypes used for the study. The PCV values recorded were superior than the GCV values which was attributed for the effect of environment on the morphological appearance of the traits. In the study, high heritability alongside high genetic advance was observed for most of the traits, Foresaid estimate for the traits taken into study indicates the meagre influence of environment in governing respective phenotypes, paving the way for direct selection for early maturing genotypes. The correlation analysis revealed that the trait green fodder yield was correlated positively as well as significantly with traits viz. Days to 50% flowering, Plant height, Number of leaves/ plant, Stem thickness, Leaf : stem ratio, and Production efficiency. Path analysis divulged that a high positive direct effect on green fodder yield was reported by the traits leaf : stem ratio followed by leaf width (cm), days to 50% flowering, dry matter yield (kg/plant). While, the high negative direct effect was recorded for leaf fresh weight/ plant (gm) followed by stem thickness (cm), seed yield/ plant (gm), and dry weight of stem (kg/plant). The residual effect in path analysis (genotypic) was 0.2127, so the 79% of the total variation in GFY can be explained by the fifteen characters taken for study. Based on diversity using Tocher’s method, the 23 genotypes were divided into 6 clusters. Among all the characters studied, Leaf :stem ratio contributed maximum to the diversity followed by the Leaf fresh weight/ plant, dry weight of stem/ plant, number of leaves / plant, production efficiency, seed yield/ plant, stem thickness, dry matter %, dry matter yield, green fodder yield and plant height. The inter-cluster distances were recorded higher than the intra-cluster distances further indicating a considerable amount of diversity in the genotypes involved. The intra cluster distances were recorded only in the clusters I and cluster II, as the clusters in III, IV, V and VI were composed of only one genotypes each. | en_US |
| dc.identifier.other | M/PBG/381/2018-19 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810154424 | |
| dc.keywords | Plant, Breeding, Genetics, Biotechnology, Molecular, Biology | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 76 p.;vii (Bibliography) | en_US |
| dc.publisher | DRPCAU, Pusa | en_US |
| dc.sub | Plant Breeding | en_US |
| dc.theme | Diversity study of Cowpea genotypes for fodder traits | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Diversity study of Cowpea genotypes for fodder traits | en_US |
| dc.type | Thesis | en_US |