高秋眠级苜蓿品种在宁夏引黄灌区西夏区的麦后复种表现

摘要

[目的]筛选出适合宁夏引黄灌区麦后复种高产优质的苜蓿新品种.[方法]引进北美高秋眠级苜蓿新品种在银川市西夏区进行麦后复种品比试验.[结果]参试品种WL712、WL656HQ、WL525HQ的鲜草产量和株高较高,而WL440HQ、WL525HQ、WL656HQ的平均茎粗较大.以粗蛋白(CP)和中性洗涤纤维(NDF)为主要参考指标,各参试品种均达到NY/T 1170—2006质量标准.[结论]在宁夏引黄灌区西夏区麦后复种高秋眠级紫花苜蓿是可行的,以WL525HQ、WL656HQ和WL712表现较为理想.%[Objective] To screen out new high-yield and good-quality alfalfa varieties for multiple cropping after wheat in the irrigation area of Ningxia from Yellow River.[ Method] New high fall-dormancy alfalfa varieties were introduced from North American to conduct the variety comparison test of multiple cropping after wheat in Xixia District of Yinchuan City.[ Result] The average fresh yield and plant height of test alfalfa varieties WL712, WL525HQ, WL656HQ were higher, and the average stem diameter of test alfalfa varieties WL440HQ, WL525HQ, WL656HQ were larger.Taking crude fat and NDF as main indices, all test alfalfa varieties achieved the quality standards of NY/T 1170 -2006.[Conclusion] Multiple cropping of high fall-dormancy alfalfa after wheat in Xixia District of irrigation area of Ningxia from Yellow River was feasible.And the performance of test varieties WL525HQ, WL656HQ and WL712 were ideal.