Abstract

The availability of stable cytoplasmic male sterility and fertility restoring system is vital for commercial exploitation of heterosis in rice. The biological material used in the present study comprised of three CMS lines viz., CRMS 31A, IR 58025A and IR79156A and five testers viz., NPT 453-2, NDR 8054 (IR 77768-25-NDR-B-108-14), CR 2330-3-3-2-1-1, NPT 76-8 and PR-115. Parents NPT 76-8 and CR 2330-3-3-2-1-1 were identified as potential restores, whereas NPT 453-2, NPT 76-8, PR-115 and NDR 8054 (IR 77768-25-NDR-B-108-14) were identified as potential maintainers.

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