Indian Journal of Agricultural Research

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Indian Journal of Agricultural Research, volume 40 issue 3 (september 2006) : 208 - 211

HETEROSIS IN THREE LINE RICE (ORYZA SATIVA L.) HYBRIDS

P. Shanthi, P. Shanmugasundaram, S. Jebaraj*
1Department of Plant Breeding and Genetics, Tamil Nadu Agricultural Univesity, Coimbatore - 641 003, India

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Cite article:- Shanthi P., Shanmugasundaram P., Jebaraj* S. (2024). HETEROSIS IN THREE LINE RICE (ORYZA SATIVA L.) HYBRIDS. Indian Journal of Agricultural Research. 40(3): 208 - 211. doi: .

ABSTRACT

Out of 50 hybrids developed by using five CMS lines and 10 testers, 20 hybrids involving CMS
lines viz., COMS9A and IR66707A which, are developed from Oryza perennis cytoplasmic source
showed 100 per cent pollen and spikelet sterility. Although these hybrid combinations have no
direct use as hybrids, they can be pursued further to develop new CMS lines with diverse nuclear
genome. In the remaining 30 hybrids, IR58025A/IR65514R, IR58025A/IR42266R, IR58025A/
IR50404R and IR58025A/IR29341R were considered as superior hybrids with high yield and
desirable yield attributing characters suggested for commercial exploitation.

KEYWORDS

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