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

Analyzing leaf number in parental lines for hybrid rice seed production

C. H M. Vijayakumar | M S. Ramesha | B C. Viraktamath | S Singh | M. Ilyas-ahmed

Discipline: Agriculture



Determining the seeding interval between two parents in any hybrid combination at a given location is of prime importance for achieving perfect synchronization in a hybrid rice seed production plot. Fixed growth duration, commonly practiced in India, is a simple and easy method to adopt. But fluctuations in temperature and other weather conditions influence maturity. Leaf number, unlike growth duration of a rice variety, is reported to be relatively stable over seasons and years.