Abstract

                                Preponderance of additive gene effect was observed for days to flower, days to maturity. plant height, test weight, seed yield and oil yield. Additive genetic variation done was significant for primary branches, number of seeds per capsule, biological yield and seed oil content, whereas significant dominance genetic variation was seen for harvest index. However, none of the genetic variation was significant for number of capsules per plant. Both gca and sea were influenced by environments suggesting that to have unbiased estimate of gea and sea, the material may be tested over wide range of environments. The parental lines Chambal and Triveni were identified as a good general combiners for seed yield and oil content, earliness and other yield components. The cross combination LCK 88511 x Triveni exhibited high desired sea effects for seed yield, carliness, oil content and other yield contributing attributes. The additive and non-additive variance may be exploited following inter mating among the progenies within and between promising crosses in early segregating generations.

Key words : Linseed, combining ability, environmental effect, specific combining ability