LINE X TESTER ANALYSIS FOR YIELD AND IT’S CONTRIBUTING TRAITS IN WHEAT UNDER HEAT STRESS CONDITION (Triticum aestivum L.)

48 hybrids were developed by crossing six female lines with eight diverse testers in line x tester mating design. The resultant hybrids and parents were evaluated for days to heading, days to maturity, plant height (cm) at maturity, number of tillers per plant at maturity, spike length, grains per spike, grain weight per spike, 1000 grain weight, grain yield per plant, protein percent (%), β-carotene content (ppm). Promising hybrids were chosen on the basis of mean performance, heterosis and specific combining ability effects of the crosses. Promising parents were also selected on the basis of general combining ability effects of the parents for yield and yield contributing characters.