Pooled analysis across years revealed highly significant variances in the interaction of the General Combining Ability (GCA) of parents and the Specific Combining Ability (SCA) of hybrids with a predominance of non-additive genetic variance.
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Estimation of heterosis and combining ability under low soil phosphorus condition in rice (Oryza sativa L.).
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The sentences
Therefore, identification and selection of hybrids under graded level of applied P may be significant.