Vol. 10, Issue 10 (2021)

Author(s):
Shanti Bhushan, Sanjay Kumar, Sunil Kumar, Vinay Kumar Choudhary, Anuj Kumar Choudhary and Sohan Ram

Abstract:
Heterosis and inbreeding depression for seed yield and yield attributes was studied in eight diverse linseed genotypes and one check under normal environmental condition. The analysis of variance in complete randomized block design for nine genotypes revealed significant differences among nine genotypes for all the ten characters indicating the sufficient amount of genetic variability present in experimental material, except number of primary branches per plant. Significant and desirable heterosis over mid parent was observed in four crosses for days to 50% flowering, two crosses for days to maturity, three crosses for plant height, two crosses for number of primary branches per plant, twelve crosses for number of capsules per plant, three crosses for number of seeds per capsule, seven crosses for capsule diameter, twelve crosses for each seed yield per plant and 1000-seed weight and eleven crosses for oil content. Heterosis over better parent it was observed significant and in desirable direction for seven crosses for days to 50% flowering, five crosses for days to maturity, four crosses for plant height, two crosses for number of primary branches per plant, nine crosses for number of capsules per plant. Similarly, heterosis over check variety T-397 was found significant desirable in eleven crosses for number of capsules per plant, thirteen crosses for each capsule diameter, seed yield per plant and oil content all the fifteen crosses for 1000-seed.