Indian Journal of Agricultural Research

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Indian Journal of Agricultural Research, volume 40 issue 2 (june 2006) : 109 - 113

HETEROSIS IN RELATION TO PER SE AND SCA EFFECTS IN GRAIN SORGHUM {SORGHUM BICOLOR (L.) MOENCH}

K. Iyanar1, A. Gopalan2
1Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore - 641 003, India

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Cite article:- Iyanar1 K., Gopalan2 A. (2025). HETEROSIS IN RELATION TO PER SE AND SCA EFFECTS IN GRAIN SORGHUM {SORGHUM BICOLOR (L.) MOENCH}. Indian Journal of Agricultural Research. 40(2): 109 - 113. doi: .

ABSTRACT

Close association between per se performance of hybrids and heterosis was observed for all
the traits except for leaf number and seed yield, suggesting that the selection of the crosses
based on per se performance would be more realistic in sorghum. In the present study the
hybrids 2077A x SPV 1192 recorded high per se and significant heterosis for grain yield and
panicle weight and hence it could be exploited for commercial hybrid seed production. It was
evident that high x high general combiners produced high per se and significant sca effects
couple with higher SCA variance with significant heterosis for seed yield and panicle weight in
the hybrid 2077A x SPV 1192 indicating the importance of non additive gene action which could
be exploited for developing hybrids in sorghum.

KEYWORDS

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