Utilization of genetic stocks in National Genetic Stock Nursery -- a 'suggested crossing block'

摘要

The success of wheat breeding program primarily depends upon the availability of reliable genetic stocks for key characters. The National Genetic Stock Nursery (NGSN) initiated in 1964-65 was reconstituted into a "Suggested Crossing Block" in 1996-97at Directorate of Wheat Research, Karnal, wherein confirmed genetic sources from different nurseries are included to assist the plant breeder in making their crossing block more vibrant. Normally the new confirmed genetic stocks are added every year by different programs after years of evaluation. The primary aim of this nursery is to provide confirmed genetic stocks to the wheat breeders of the India as well as to provide the opportunity for evaluation of genetic stocks for agronomic superiority, biotic and abiotic stress tolerance in various wheat growing zones through 35 centers spread throughout the country. The data so generated was compiled and published in the form of Progress Report, Vol II, Genetic Resources every year (Mahajan 1997, 1998, 1999; Mahajan and Ganga Rao 2000, 2001).