遮阴强度对西南地区野生马蹄金生理特性的影响  

Effect of Shade Intensity on Physiological Charateristics of Wild Dichondra repens of Southwest China

作　　者：干友民[1] 任婷[1] 

机构地区：[1]四川农业大学动物科学学院草业科学系,四川雅安625014

出　　处：《湖北农业科学》2009年第8期1930-1932,共3页Hubei Agricultural Sciences

基　　金：四川省科技厅应用基础研究专项基金项目(01SY051-27)

摘　　要：以5份西南地区野生马蹄金(Dichondra repens J.R. Forst. & G.Forst)为材料,1份美国引进的品种普通马蹄金为参照,在4个光照梯度下(遮阴0、遮阴30%、遮阴50%、遮阴70%)进行耐阴性研究,测定其叶片相对电导率、游离脯氨酸、MDA和可溶性糖含量等生理指标。结果表明,参试的5份西南地区马蹄金材料中,小哨(YD200503)、壁山(SD200411)、纳溪(SD200310)的耐阴性较差,兰田(SD200309)和三都(GD200503)的耐阴性较强。5 wild Dichondra repens accessions from southwest area were analysed with a US breed as a comparison. Analysis of leaf＇s relative electrical conductivity rate, free proline, MDA content and soluble sugar were conducted with 4 illumination levels （0 shade, 30% shade, 50% shade, 70% shade）. Results showed that a significant difference existed among 5 accessions on shade tolerance. Accessions Xiaoshao （YD200503）, Bishan （SD200411）, Naxi （SD200310） were with lower shade tolerance. Accessions Lantian （SD200309） and Sandu （GD200503） were with better shade tolerance.

关 键 词：野生马蹄金 耐阴性 生理指标 

分 类 号：S688.4[农业科学—观赏园艺] Q948.112.1[农业科学—园艺学]