Vol. 12, Issue 7 (2023)

The present investigation entitled “Estimates of heterosis for yield and its contributing traits in bread wheat (Triticum aestivum L. em. Thell.) under sodic soil” was carried out with 48 F₁’s developed by crossing of lines (FLW-15, FLW-8, KRL-20, K-402, HD-2851, KRL-1-4, DBW-14, CHIRYA-1, KRL-3-4, HI-1563, FLW-2, FLW-11, HD-2009, HI-3118, K-9006 and DBW-39) with 3 testers (NW-1067, PBW-778 and NW-2036) including three checks (KRL-19, KRL-210 and NW-1076). The Proportional contribution of lines, testers and lines x testers revealed that the relative contribution of the lines × testers was higher than its corresponding contribution of lines and testers for all the characters in both Timely (E₁) and Late Shown condition (E₂) except for maturity (E₂). The best five F₁’s showed significant heterosis over better parent in positive direction for grain yield were HD-2851 x PBW-778, FLW-8 x NW-1067, HD-2851 x NW-1067, KRL-1-4 x NW-1067 and FLW-11 x NW-1067.