Heterosis and combining ability studies were made in bajra inbreds of different height groups viz., dwarf, medium tall and tall. Heterosis of varying degrees was manifested by the F1s for the characters studied. But the magnitude was high for plant height, panicle weight and grain yield. In the combining ability analysis, both the GCA and SCA mean squares were significant indicating the importance of both additive and non-additive gene actions. However, additive gene action was predominant for plant height, days to 50% flowering, stem girth and grain yield.
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Tamil Nadu Agricultural University
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Tamil Nadu, India.
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