Characteristic and Ecological Geographical Distribution of Crops Resources in YunnanⅨ.Diversity distribution of rice resources with resistance to Sogatella furcifera

The diversity performance of 2149 rice resources in Yunnan with resistance to Sogatella furcifera in different climatic types and rice cultivation regions was analyzed by GIS technology to further understand diversity distribution of rice resources with resistance to S.furcifera in Yunnan.Result:The expression of rice resources with resistance to S.furcifera is related to environmental factors.The diversity enrichment region of rice resources with resistance to S.furcifera distributes in different ecological environments in Yunnan.The regions of Southwest Yunnan,Central Yunnan,Japonica and indica rice overlapping and abundant planting environment are diversity enrichment regions of rice resources with resistance to S.furcifera.The diversity of rice resources with resistance to S.furcifera in different climatic zones is Mid-subtropical zone=South subtropical zone=South temperature zone >Northern subtropical zone >North tropical zone >Middle temperature zone >North temperature zone.The diversity of rice resources with resistance to S.furcifera decreases with elevation rise and temperature reduction but increases with elevation reduction and temperature rise.87 identified rice resources with strong resistance to S.furcifera have the utilization value in breeding for insect resistance of rice varieties.