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《Pratacultural Science》 2009-09
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The production performance of alfalfa in dry-hot valley region of Jinsha River

Han Xue-qin,SHI Liang-tao,JIN Jie,ZHANG Ming-zhong,LONG Hui-ying,JI ZHong-hua,SHA Yu-cang(Tropical Eco-Agriculture Institute,Yunnan Academy of Agriculture Sciences,Yuanmou 651300,China)  
Based on grey system theory,the study conducted the gray system analysis on main indexes of 14 introduction alfalfa cultivars in dry-hot valley region of Jinsha River,including fresh yield,dry yield,plant height,tiller number,stem-leaf ratio and crude protein content.The order of weight of main production indexes in the synthetic evaluation model was that crude protein contentfresh yieldstem-leaf ratioplant heightdry yieldtiller number.A comprehensive alfalfa cultivar evaluation model was established according to the weight of main indexes,and comprehensively evaluated the production performance of alfalfa cultivars with model,the results showed that the cultivar Hunter-river(74-55)earned the maximum evaluation value,and it had relatively outstanding comprehensive productivity performance,which indicated that it was suitable for both spreading and planting in special ecological condition of dry-hot valley region of Jinsha River.
【Fund】: 国家“十一五”科技支撑课题“长江中上游西南山区退化生态系统综合整治技术研究”(2006BAC01A11)
【CateGory Index】: S541.901
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