北京地区不同秋眠级苜蓿品种适应性评价  

Comparison of the adaptation of fourteen alfalfa varieties with different fall-dormancy in Beijing area

作　　者：刘艺杉[1] 刘自学[1] 苏爱莲[1] 李晓光[1] 

机构地区：[1]北京克劳沃草业技术开发中心,北京100029

出　　处：《草业科学》2008年第2期60-63,共4页Pratacultural Science

基　　金：全国牧草种资源保护项目(070401)

摘　　要：对14个紫花苜蓿Medicago sativa品种在北京地区的表现进行观测,并对主要性状指标进行分析。结果表明:参试各品种秋眠级不同其春季生长速度、秋季生长速度、产草量及越冬率都有明显的差异,秋眠级高的品种生长速度快、产草量高,但越冬率低、秋眠级低的品种与之相反;地温也影响苜蓿生长速度;茎叶比与鲜干比各品种之间无明显变化,但与茬次有显著变化。The main performance indexes of 14 alfalfa varieties were measured and analyzed in Beijing area. The result indicated that the growth rates in spring and autumn, forage yield and over-wintering rate showed significant difference along with different fall dormancy. The varieties with high level of fall dormancy performed higher growth rate, forage yield and lower over-wintering rate. The growth rate of tested alfalfa varieties was affected by soil temperature. The stem/leaf ratio did not show significant difference among varieties, but it was affected by the number of harvest.

关 键 词：北京地区 苜蓿 秋眠级 适应性 比较 

分 类 号：S541.9[农业科学—作物学]