Indian Society of Genetics & Plant Breeding

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COMBINING ABILITY FOR YIELD IN MAIZE

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Genetics of seed weight and grain yield in maize was studied through diallel analysis in
two different situations, viz., winter and summer seasons. Combining ability revealed that
both additive and nonadditive genetic variances were important in the expression of seed
weight and yield in both seasons. K-725 and K·729 were the most desirable donors of seed
weight and grain yield. The crosses K·729x K-644 (5) and K·720x K-644 (W) produced bold
seeded hybrids. K-725 XK-644 (5) and K·725 x K-622 (W) were the highest yielding hybrids
in summer and winter season, respectively. Due to dissimilarity in seasons, development
of season specific hybrids/varieties has been suggested.
 

Keywords: Combining ability, diallel, maize.

Info

Year: 1997
Volume: 57
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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