RICE BREEDING IN YUNNAN PROVINCE AND CENTRAL REGION BY THE EAST CHINA SEA OF CHINA

摘要

From December 1982, a joint research project had been carried out on the breeding of rice varieties with cold tolerance, blast resistance, high yield and high quality using genetic resources between the Tropical Agricultural Research Center (present Japan International Research Center for Agricultural Sciences: JIRCAS) and Yunnan Academy of Agricultural Sciences, China. This joint research had lasted for more than 14 years in 4 periods and the research program and contents had been changed little by little along with its progress. As a result, many new rice varieties adaptable to the environment of Yunnan Province have been developed and planted widely, and lots of useful knowledge had been accumulated through the research on cold tolerance and blight resistance. This project was completed in March 1997 and the process and results had been summarized by HIGASHI (2000). After the completion of this project, under the comprehensive research project titled "Development of sustainable production and utilization of major food resources in China", JIRCAS has initiated another joint research on rice from March 1999. The research subject is called "Evaluation of plant genetic resources, development of novel breeding materials and their effective utilization" and is carried out in China National Rice Research Institute (CNRRI) in Hangzhou, Zhejiang Province, and will be finished by 2003.