云南作物资源特征特性及生态地理分布研究Ⅱ.云南地方稻种资源的营养品质

应用GIS平台统计整理云南省128个县所属的气候类型,并结合云南省的5个稻作分区,分析研究了云南地方稻种资源营养品质的生态地理分布。从总的趋势看,初步摸清了营养品质主要包括蛋白质和赖氨酸的生态地理分布习性,在云南省亚热带以及滇中一季籼粳交错区和滇南单双季籼稻区,高蛋白质或低蛋白质以及高赖氨酸的品种资源出现频率都较高;而在北热带以及滇东北和滇西北的稻作地区,蛋白质和赖氨酸的含量相对高于云南的其它地区,但针对营养品质不同的成分和特性还有着各自的分布侧重区域等,其结果可为优异资源挖掘和利用、优质稻育种研究、生产等领域提供参考依据。

Characteristics and geographical distribution of Yunnan crops resources Ⅱ.Nutrient quality of Yunnan local rice germplasm

The climates of 128 counties of 5 main rice zones in Yunnan were studied by using Geographic Information System(GIS) technique,and the ecological distribution of nutrient quality of Yunnan local rice germplasm were analysed.Results showed that germplasm with high or low protein and high lysine content mostly distributed in Yunnan subtropical area,single cropping hsien and keng overlapping zones of middle Yunnan and double cropping hsien rice zones of south part of the province.Protein and lysine contents of germplasm from the north subtropical area,northeast and northwest of the province were higher than that from other area of the province.However,different nutrient components showed diverse distribution in different area.