FiftyS2families from a random mated sunflower population were evaluated in a randomised complete block design with three replications. Significant differences existed among S2families for the traits evaluated. Three plant traits (achene weight, number of achenes per head and seed yield) indicated greater variation. Their genotypic and phenotypic coefficients of variation were maximum. The estimates of heritability were significant for all the traits studied except head diameter. The traits showing the greater variation also indicated maximum expected genetic advance.
Muhammad Saeed Asif, Syed Sadaqat Mehdi. (1992) RESPONSE TO SELECTION FOR SEED YIELD AND ITS COMPONENTS IN S2FAMILIES OF A SUNFLOWER POPULATION, , Volume 29, Issue 3.