紫花苜蓿品种在金沙江干热河谷地区的生产性能

基于灰色系统理论，对金沙江干热河谷地区引种的14个紫花苜蓿Medicago sativa品种的鲜草产量、干草产量、株高、分蘖数、茎叶比、蛋白质含量主要生产性能指标进行灰色关联度分析，根据权重比较得出各项生产性能指标的权重顺序为：蛋白质含量>鲜草产量>茎叶比>株高>干草产量>分蘖数；依据各项指标权重构建了紫花苜蓿综合评价模型，并应用综合评价模型对各品种生产性能进行综合评价，结果表明：猎人河（74-55）在综合评价模型中评价值最高，综合生产性能最好，在金沙江干热河谷地区特殊的生态条件下，是最适宜推广种植的优良品种。

The production performance of alfalfa in dry-hot valley region of Jinsha River

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 content>fresh yield>stem-leaf ratio>plant height>dry yield>tiller number.A comprehensive alfalfa cultivar evaluation model was established a...