Department of Plant Breeding, Genetics and Biotechnology, Punjab Agricultural University, Ludhiana-141 004, Punjab.
*Author for Correspondence: E-mail: dr_dhillon_s_k@yahoo.co.in
Sixty-seven genotypes of sunflower were evaluated for yield and yield components to study the extent of variation for different quantitative traits. Analysis of variance revealed significant differences among the genotypes for all the quantitative traits. High heritability coupled with low genetic advance was recorded in respect of days to initiation of disk floret opening (96.3%), complete anthesis (92.2%) and days to maturity (84.6%). High heritability coupled with high genetic advance was observed for 1000 seed weight (88.2 and 55.06) and seed yield g/plant (73.7 and 59.1). Large head size was observed for P62R, P64R, P74R, P81R and NDR-2. Nineteen lines had high self-fertility exceeding 94.0%. Bold seeds (1000 seed weight >80 g) was the characteristic feature of P72R. The lines viz. P63R, P64R and P86R were found to be promising for developing short duration hybrids.
Characterization, Genetic evaluation, Heritability, Phenotypic and genotypic Coefficients of variation
