HomeInternational Rice Research Notesvol. 30 no. 1 (2005)

Enhancing outcrossing potential in hybrid rice

R.d.s. Yadav | R. K. Srivastava | G.r. Singh

Discipline: Biology, Agriculture

 

Abstract:

In spite of a successful hybrid rice research program in India, the nonavailability of good-quality seed of CMS-based hybrids, released in the recent past to farmers at a reasonable price, remains a big challenge (Rai 2004). Among other factors, the inherent low variability of suitable floral traits, which influence outcrossing, in parental lines of the respective hybrids is itself a key factor responsible for the low percentage of seed set (Liang et al 1991, Virmani and Athwal 1974, Yadav et al 1998). Keeping these in view along with the mode of action of some homoeopathic medicine on human reproductive systems, a number of these resources were tried to explore their usefulness in enhancing outcrossing of parental lines of hybrid rice. Among them, Pulsatilla, Agnus Cast, and Acid Phos were found worth investigating (Yadav and Srivastava 2003).