| 不同播种密度对紫花苜蓿主要性状的影响 |
| |
| 引用本文： | 杜汉强,牛一川,赵晓玲,陈双恩.不同播种密度对紫花苜蓿主要性状的影响[J].草业科学,2004,21(3):42-45. |
| |
| 作者姓名： | 杜汉强 牛一川 赵晓玲 陈双恩 |
| |
| 作者单位： | 甘肃省天水农业学校,甘肃,清水741400;甘肃省天水农业学校,甘肃,清水741400;甘肃省天水农业学校,甘肃,清水741400;甘肃省天水农业学校,甘肃,清水741400 |
| |
| 摘 要： | 在5个播种密度下对紫花苜蓿Medicago sativa德宝品种的10个主要性状进行了研究。结果表明，在不同播种密度下，紫花苜蓿的单株分枝数、单株叶片数、体积、干质量、鲜质量5个性状随播种密度的增加而减少，差异达显著或极显著水平，根体积、根干质量、根鲜质量3个性状，随密度的增加也有减少或下降的趋势，但差异不显著。根长与株高2个性状比较稳定。对鲜质量影响最大的是鲜体积，其次为单株叶片数，单株分枝数和株高。除单株叶片数外其余性状均为正效应。
|
| 关 键 词： | 紫花苜蓿 播种密度 性状 |
| 文章编号： | 1001-0629(2004)03-0042-04 |
Sowing density effects on the major characteristics of alfalfa |
| |
| DU Han-qiang,NIU Yi-chuan,ZHAO Xiao-ling,CHEN Shuang-en.Sowing density effects on the major characteristics of alfalfa[J].Pratacultural Science,2004,21(3):42-45. |
| |
| Authors: | DU Han-qiang NIU Yi-chuan ZHAO Xiao-ling CHEN Shuang-en |
| |
| Abstract: | A study was carried out on the effect of five sowing densities on ten major characteristics of alfalfa (Debao variety). With increase in sowing density, branch number per plant, leaf number per plant, volume aboveground, and dry and fresh weight reduced with differences significant or very significant. Although root volume, and dry and fresh root weight also decreased with increase in sowing density, the differences were not significant. Root length and plant height were relatively stable. The characteristics most greatly affecting fresh weight aboveground were, firstly, fresh volume aboveground, followed by leaf number per plant, branch number per plant and plant height. Apart from leaf number per plant, these characteristics had positive effects. |
| |
| Keywords: | alfalfa sowing density characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
