EVALUATION FOR HETEROSIS AND COMBINING ABILITY IN WHEAT (TRITICUM AESTIVUM L.).
Kaveri Chawan
Abstract
Kaveri Chawan
Abstract
32 crosses were developed by crossing four lines with eight testers in line x tester mating design. The crosses and parents were evaluated for days to heading, days to maturity, plant height (cm), effective tillers per plant, spike length (cm), grains per spike, 1000 grain weight (g), grain weight per spike (g) and grain yield per plant (g). Promising crosses 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.
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32 crosses were developed by crossing four lines with eight testers in line x tester mating design. The crosses and parents were evaluated for days to heading, days to maturity, plant height (cm), effective tillers per plant, spike length (cm), grains per spike, 1000 grain weight (g), grain weight per spike (g) and grain yield per plant (g). Promising crosses 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.
Key concepts: Heterosis, Mating design, Grain yield, Yield (engineering), Spike (software development), Agronomy, Biology, Mating