The Indian Journal of Genetics and Plant Breeding
Year : 1995, Volume : 55, Issue : 3
First page : ( 308) Last page : ( 314)
Print ISSN : 0019-5200.

Heterosis in soybean (Glycine max (L.) Merrill)

Gadag R. N., Upadhyaya H. D.*

Department of Genetics and Plant Breeding, University of Agricultural Sciences, Dharwad 580005.

* Address for correspondence: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), P.O. Patancheru, Hyderabad, 502324.

Received:  24  May,  1991; Accepted:  9  June,  1995.

Abstract

Twenty one soybean hybrids derived from a seven-parent half-diallel set along with their parents were evaluated to estimate heterosis. Heterosis was significant positive for yield in 16 hybrids over midparent and in 9 hybrids over better parent. Heterosis for yield was generally accompanied by heterosis for yield components. For protein, five and for oil one hybrid exhibited significant positive heterosis ovtr midparent. In view of the availability of genetic male sterility, the study revealed good scope for commercial exploitation of heterosis for yield and protein contents in soybean.

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Key words

Soybean, Glycine max, heterosis.

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