苜蓿品种比较研究初报

收集国外苜蓿品种6个、国内苜蓿品种4个进行品种比较试验。结果表明,参试品种均于2005年安全越冬,参试各品种株高、生长速度无显著差异。枝条密度、枝条直径均以国外品种表现上佳,但大部分品种间无显著差异;旱作条件下,国内育成品种鲜干草产量明显高于国外品种,干草产量与国外品种表现好者无显著差异;国外品种叶量均明显高于国内品种,且差异显著;旱作条件下,国外品种较之国内品种不存在生产性能优势;国外品种质量明显优于国内品种。国外品种在其适应性未确定的情况下,切勿盲目引进。

A Primary Report of Studies on Comparing Alfalfa Varieties

Six foreign alfalfa varieties and four domestic alfalfa varieties were collected and their compared in this experiment. The results showed that all tested varieties passed over winter safely in 2005. All tested varieties were not significantly different in their height and growth rate. Foreign alfalfa varieties performed much better in branch density and diameter, but there were not significant difference among most of these test varieties. Fresh grass yields of domestic bred varieties were much higher than that of foreign varieties. There were not significant difference in the hay yields between domestic bred varieties and foreign ones with better performance. Leaf mass of all foreign varieties was significantly higher than that of domestic varieties. In dry farming condition, the production performance of foreign varieties was not superior to that of domestic varieties. Quality of foreign varieties was much better than that of domestic ones. It must be totally prohibited to introduce and plant foreign varieties of alfalfa before their adaptability being understood clearly.