HomeInternational Rice Research Notesvol. 23 no. 2 (1998)

A new CMS line with a wide compatibility gene

P. Jayamani | K. N. Ganesan | K. Thiyagarajan | M. Rangaswamy | P. Rangasamy

Discipline: Agriculture



In the three-line system (A/B/R) of heterosis breeding in rice, genetic diversity of the A line is very important. The F1 hybrids of indica/japonica crosses show semisterility. Some wide compatibility varieties do produce fertile F1 hybrids when crossed with indica as well as with japonica varieties. A cytoplasmic male sterile (CMS) line with a wide compatibility gene will be useful in developing indica/japonica hybrids that can overcome sterility problems.