Inheritance of Alternaria leaf blight disease in Indian mustard (Brassica Mounts juncea L.Czern & Coss) was carried-out using generation mean analysis.Results based on generation mean analysis of per cent disease index (PDI) showed significant estimates of additive [d] and dominance [h] effects as well as all WHEAT BRAN the three types of epistasis in all the three crosses.
The opposite signs of [h] and [l] indicated that duplicate epistasis was operative in the inheritance of Alternaria leaf blight in the material studied.