HomeInternational Rice Research Notesvol. 23 no. 1 (1998)

Effect of minor genes in restoration of fertility in CMS lines of rice

K. N. Ganesan | K. Thiyagarajan | M. Rangaswamy

Discipline: Agriculture, Genetics



We evaluated 128 hybrids in the 1994 dry season and 135 hybrids in the 1995 wet season. The hybrids, involving varieties C29 and PMK2, with different wild abortive (WA) sources of cytoplasmic male sterile (CMS) lines- IR58025A, IR62829A, and PMS3A- showed marked differences in pollen and spikelet fertility. When C29 was crossed with IR62829A and PMS3A, it behaved as a partial restorer (21-90% pollen and spikelet fertility).