Association analysis in bold seeded and early maturing genotypes of linseed (Linum usitatissimum L.)

Abstract

The experiment entitled “Association analysis in bold seeded and early maturing genotypes of linseed (Linum usitatissimum)” was conducted at Research cum Instruction farm, Department of Genetics and Plant Breeding, IGKV, Raipur, CG during Rabi 2022-23. The experiment was carried out in RCBD involving 32 early and 26 bold seeded genotypes of Linseed, including 5 check varieties with three replications. For 12 quantitative characters, observations were made on five competing plants that were chosen at random from each plot and replication. In early maturing and bold-seeded flax varieties, an analysis of correlations revealed significant and positive associations between seed yield/plant and several factors including plant height, the no. of seeds/capsule, 1000 seed weight, capsule length, capsule width, days to 50% flowering, and days to maturity. This suggests that an increase in one variable would likely result in an increase in another. The outcomes of a path coefficient analysis, considering seed yield/plant as the dependent variable, demonstrated that the no. of primary branches/plant, plant height, days to maturity, 1000 seed weight, and capsule length exhibited the most substantial positive direct effects. Direct selection for these attributes could potentially enhance yield due to their genuine relationship with seed yield and other traits being highlighted.