Characteristics and Geographical Distribution of Crops Resources in Yunnan Proviance I.Special Rice Resources in Yunnan Local Rice Germplasm

Characteristics of special rice resources,including black or purple,red,scented,sticky and soft rice resources selected from 6121 Yunnan landraces were evaluated.In order to determine their geographical distributions,the climates of 128 counties and 5 main rice zones in the province were studied by using Geographic Information System(GIS) technique.Results showed that except for scented rice,which mostly distributes in middle subtropics and middle temperate zones,all other special resources mainly distribute in south subtropics.The study could be helpful for the collection,preservation and study on resources,breeding,exploitation and adjustment of industrial structure of agriculture.