GENETIC-STUDIES OF INTERRELATIONSHIPS BETWEEN SEED YIELD AND ITS COMPONENTS IN LINSEED (LINUM-USITATISSIMUM L)

Thirty genotypes of linseed were evaluated at the Oilseed Research Cen tre, BARI, Gazipur during rabi 1992-93. Analysis of variance showed si gnificant differences among the genotypes in all respects except prima ry branches per plant and seed weight. High phenotypic and genotypic c oefficients of variation were observed in yield per plant, harvest ind ex, capsules per plant and plant height Heritability alongwith genetic advance as percentage of mean was high for plant height, harvest inde x, seed yield per plant and capsules per plant. The harvest index and capsules per plant also showed significant positive correlation with y ield at phenotypic, genotypic and environmental level. Path analysis s howed highest positive direct effect for days to flowering, capsules p er plant and harvest index. The study suggested that days to flowering , capsules per plant and harvest index were the most important yield c ontributing characters and attempt should be made for effective select ion on these characters.