Line × tester Study in Bread Wheat (Triticum aestivum L.) for Important Biochemical and Morphological Traits

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Using line × tester analysis, the current research analyses parental genotypes and their combinations in normal conditions and identi ies the genes in luencing yield characteristics.In the present study, 15 diverse genotypes, including 10 lines, 5 testers, and 50 F s hybrids, were evaluated for 13 morphological and 2 biochemical traits.The results exposed that ability mean squares were 1 signi icant for all studied additive and non-additive components.In this direction, the general combining ability of PBW-343, DBW-39, K-402, K-1317, KRL-210, and K-68 was higher than the remaining parents.For morphological traits like yield, the top ive crosses were described based on SCA effects, namely, HD-3086 × HD-3171, K-402 × K-9107, K-1317 × K-9107, HD-2967 × K-0307 and K-402 × K-68 in F generation..In addition, the high value of heritability was estimated for plant height (77.32%), spike length (32.26%), 1 biological yield/plant (59.52%), and grain yield/plant (68.76%).However, the moderate values of heritability were estimated for days to maturity (22.78%) and phenol color reaction (18.00%).The higher genetic advance was not found for recorded characters; however, a moderate genetic advance was recorded for grain yield per plant (13.15%) and harvest index (11.72%).High heritability coupled with moderate genetic advance was recorded for two characters grain yield per plant and harvest index in F and F 1 2 generations.

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