Genetic variability, heritability and character association sunflower

摘要

In the present investigation, 80 genotypes of sunflower were grown in randomized block design with three replications accomodating each genotype in 4 m long single row plot with row to row and plant to plant spacing at 45 and 30 cm, respectively, at the experimental research area of Oilseeds Section, Department of Plant Breeding, CCS Haryana Agricultural University, Hisar during spring season of 2008 and 2009 with the objectives to determine variability, correlation, path coefficient, genetic divergence, identification of genetically diverse and agronomically desirable germplasm and selection indices. Observations on five competitive plants for 12 metric characters were recorded. Substantial amount of genetic variability was observed for all the characters under study. The seed yield per plant showed positive and significant correlation with number of seeds per capitulum and 100-seed weight. The path coefficient analysis recorded that number of seeds per capitulum, 100-seed weight, plant height, palinitic acid, oleic acid and linoleic acid were the main contributors towards seed yield per plant.