MAMTA RANI, O. P. SHEORAN, R. K. SHEORAN, S. JAMBHOLKAR AND SUBHASH CHANDER*
Department of Genetics & Plant Breeding, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : subhashthory@gmail.com)
(Received : December 26, 2016; Accepted : February 27, 2017)
ABSTRACT
Sunflower is one of the most important oilseed crops in Haryana, but little emphasis is being paid to understand the genetic parameters in sunflower. Thus, the objective of the present research was to study the genotypic and phenotypic variance, coefficient of variance, heritability, genetic advance, correlation and path coefficient for seed yield and quality traits in 50 sunflower genotypes. Analysis of variance was significant for all the studied traits. The results indicated that phenotypic coefficient of variation (PCV) was slightly higher than those of genotypic coefficient of variation (GCV) for all the traits studied in present investigation. The highest heritability was observed for seed yield per plant (91.60) followed by total tocopherol, test weight, hull content, seed volume weight, oil content and protein content. High values of genetic advance were observed for seed yield per plant (69.44) followed by total tocopherol (64.34) and test weight (51.64). Correlation analysis indicated that test weight, oil content and total tocopherol had significantly positive association with seed yield per plant. Path analysis revealed that the direct effects were stronger than indirect effects. Among the seed quality traits, test weight was the important trait for selection of high yielding germplasm line as it exhibited direct and positive effect on seed yield per plant.
Key words :Sunflower, seed quality traits, vitamin E, correlation, path analysis