Vol. 11, Issue 12 (2022)

Author(s):
VK Choudhary, S Ram, Shanti Bhushan, AK Choudhary, Ravi Kant, Ram Kumar Choudhary and S Kumar

Abstract:
A study was conducted for the estimation of heterosis and Inbreeding depression involving five parents and their six F1s and six F2s for seed yield, morphological traits and incidence of diseases in linseed. Estimates of heterosis revealed that all the six crosses showed significant and desirable heterosis over check variety for seed yield per plant, number of capsules per plant, capsule diameter and test weight. For wilt disease, the heterosis over mid-parent, better parent and standard check was found to be significant and negative in four crosses while rust disease showed significant and negative heterosis in three crosses. Inbreeding depression in F₂ generation was estimated for the characters under study. The character test weight showed positive significant inbreeding depression of F₂ generation. The inbreeding depression was significant and negative for both wilt and rust diseases in four and all the six crosses respectively.