我国是个多山的国家,而目前山区粮食生产仍处在较低水平。因此,针对山区主要低产因素,研究选育适应山区农业生态条件的水稻新品种,是当前综合开发山区经济的重要研究课题之一。在选育山区适应性水稻品种方面,国内开展研究较早且取得较好成绩的有贵州、云南等省。如贵州省水稻所在七十年代初期,为解决引进的矮秆籼稻品种对该省山区气候 My country is a mountainous country, and at present mountain food production is still at a relatively low level. Therefore, aiming at the main low-yielding factors in mountainous area, it is one of the important research topics to comprehensively develop the mountainous area economy to study and breed new rice varieties that adapt to agro-ecological conditions in mountainous areas. In the selection of adaptive rice varieties in mountainous areas, there are Guizhou and Yunnan provinces that have carried out earlier research and achieved better results in China. For example, in the early seventies of Guizhou Province where rice was introduced, in order to address the introduction of dwarf indica rice varieties in mountainous areas in the province