Author(s):

BN Brahmbhatt, GV Kuchhadiya, MA Gosai, NR Joshi and KG Kanjariya

Abstract: The experiment comprised of twenty one maize hybrids generated from a 7 X 7 diallel cross, along with their parents and two standard check (Gujarat Maize 3 and HQPM 1). The analysis of variance for combining ability study revealed that the value of mean square for general and specific combining ability were highly significant which indicated involvement of both additive and non-additive gene actions with prime importance of non-additive genetic variance for the expression of all the characters. The estimates of gca effect revealed that lines CML 264 and GWL 24 appeared to be good general combiners for grain yield and its yield attributes, while line GWL 22 was good general combiner for protein content. The sca effect were estimated and it resulted that single crosses GWL 24 x CML 490, CML 264 x GWL 22 and GWL 24 x GWL 28 were outstanding for grain yield. The cross CML 264 x GWL 27 were found most promising for protein content. That outstanding crosses could be exploit commercially as single cross hybrid or further evaluated and utilized to get desirable segregants which will used to improve the synthetic/composite varieties under cultivation or to develop a segregating population.

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