几种苜蓿品种在宁夏南部山区的引种表现

Introduction Experiment of Alfalfa in South Region of Ningxia

在牧草引种过程中 ,重要的环节是对引进品种进行试验观察 ,并做出评价 ,因此对引进牧草应以综合的多指标进行评价 ,灰色关联分析正是基于这一思想而被用于牧草评比试验中各农艺性状综合评价 .用灰色关联度理论对宁夏南部山区供试的 7个苜蓿品种 (Medicago.spp)进行了综合分析比较 .结果表明 ,绿苜 1号在供试苜蓿品种中表现最好 ,其次为阿尔冈金 ,再次为美国金皇后和赛特 ,这 4个品种的加权关联度都大于 0 .6 0 .其余表现较差的依次为陇东苜蓿、WL32

The key factor of pasture variety introductio n experiment is to observe and evaluate the varieties, and the varieties should be evaluated by using multi-indices. Therefore, grey correlation degree analysis is applied into the pasture variety introduction experiment. The paper analyzed the seven varieties of alfalfa applying grey correlation degree analysis, and re sult showed that Lvmu 1# was the best variety in the seven varieties for the e xperiment, and the next is Algonquin, Sitel alfalfa and Golden queen of America follows. The weighted relevancy value of these four varieties were over 0.60. Lo ngdong alfalfa, WL323 alfalfa and the great leaf alfalfa from America showed the worse.