紫花苜蓿品种在河北低平原区的引进筛选试验研究

在河北低平原区对引进的11个紫花苜蓿品种进行了三年的比较试验。结果表明：保定苜蓿鲜草产量最高，其次是中苜1号、WL323ML；中苜1号干草产量最高，其次是WL323ML、保定苜蓿；WL323ML粗蛋白质产量最高，其次是顶点、中苜1号。保定苜蓿、中苜1号株高、鲜干比、茎叶比明显较低。保定苜蓿、中苜1号抗涝性较强，但抗倒性较差。各品种抗寒性、抗旱性均较强，无明显差异。综合分析WL323ML表现最优，宜作为河北低平原区进行推广的首选品种。

Introduction and Selection of Alfalfa Varieties in the Hebei Lowland Plain

The comparison experiments were conducted with 11 domestic and overseas alfalfa varieties in the Hebei Lowland Plain Area.The result showed that: the yield of fresh forage of CV.Baoding was the highest,next Zhongmu NO.1 and WL323ML;the yield of dry forage of Zhongmu NO.1 was the highest,next CV.Baoding and WL323ML;the crude protein yield of WL323ML was the highest,next Dingdian and Zhongmu NO.1.The plant-heihgt and the dry-fresh weight ratio and the stem-leaf ratio of Baoding and Zhongmu NO.1 was obviously lower.Baoding and Zhongmu NO.1 were better than the overseas varieties in waterlogging resistance,but worse in lodging resistance.All varieties were better in cold and drought resistance,there was no significant difference.WL323ML was the first choice variety in the Hebei Lowland Plain.