不同紫花苜蓿品种的引种筛选

摘要

The adaptability and yield of 9 different alfalfa were measured for many years (2005-2010), the results were following:the introduction of the 9 alfalfa planted in northwest Sichuan region had relatively low yield in the first year,the productivity fromed in the second year, then began to rise in the following year, achieved the highest yeld in the fourth year, decreased from then on. Werko,Daisy and Vela alfalfa (Levels fall sleep for 4),their winter survival rates, yield and persistance were higher. Compared with the other varieties, this three varieties were suit-able for planting in northwest Sichuan region.%笔者对9个不同紫花苜蓿品种进行了连续多年的适应性和产量测定，结果显示：引进的9个紫花苜蓿品种在川西北高寒地区种植，播种当年的产草量都较低，无法测产，次年可形成生产能力，第4年产量达到高峰，随之开始下降；秋眠级为4级的威可、名流和威拉品种连续多年越冬率高、产量高、持久性好（即产量下降慢），适宜在川西北高寒地区推广。