Genetic variability, heritability and genetic advance for yield and yield components in sunflower (Helianthus annuus L.).

Ten genotypes of sunflower were evaluated in the field following a randomized complete block design with three replications for plant height, stem diameter at base, inter nodal length, head diameter, number of whorls per head, achene weight per head, 100 achene weight, achene oil and protein contents. Highly significant differences were observed for all the characters in all genotypes. Characters like plant height, oil contents, protein contents and achene weight per head showed high heritability with moderate genetic advance.