| 禾草种群对白三叶构型的影响 |
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| 引用本文： | 李响,王平,孙守梅,包国章.禾草种群对白三叶构型的影响[J].草业学报,2010,19(1):28-34. |
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| 作者姓名： | 李响 王平 孙守梅 包国章 |
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| 作者单位： | 1.甘肃农业大学资源与环境学院,甘肃 兰州 730070;2.吉林省前郭县长山镇畜牧兽医站,吉林 松原 131109;3.吉林大学环境与资源学院,吉林 长春 130026 |
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| 基金项目： | 国家自然科学基金(30570269);;中国博士后科学基金(20060390908);;教育部留学回国人员科研启动基金资助 |
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| 摘 要： | 间苗试验结果表明,黑麦草、鸭茅、鸭茅+黑麦草3组禾草种群对白三叶种间竞争力及构型影响显著。用Wilson的竞争指数及竞争平衡指数进行分析发现,黑麦草、鸭茅、鸭茅+黑麦草3组禾草种群对白三叶的竞争指数分别为0.32,0.47和0.71,禾草种群与白三叶之间的竞争指数及竞争平衡指数大小顺序均为鸭茅+黑麦草>鸭茅>黑麦草。随着种间竞争指数的增加,白三叶构件密度、分枝密度、分枝强度、分枝角度及构件能量减少,节间长度明显增加,根及单位长度茎的能量分配及生殖分配下降。
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| 关 键 词： | 白三叶 禾草种群 种间竞争 构型 |
| 收稿时间： | 1900-01-01; |
Effect of neighbor grasses interference on the architecture of Trifolium repens |
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| LI Xiang,WANG Ping,SUN Shou-mei,BAO Guo-zhang.Effect of neighbor grasses interference on the architecture of Trifolium repens[J].Acta Prataculturae Sinica,2010,19(1):28-34. |
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| Authors: | LI Xiang WANG Ping SUN Shou-mei BAO Guo-zhang |
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| Institution: | 1.College of Resources and Environment, Gansu Agricultural University, Lanzhou 730070, China; 2.Stations of Animal Husbandry and Veterinary, Songyuan County of Jilin Province, Songyuan 131109, China; 3.College of Environment and Resources, Jilin University, Changchun 130026, China |
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| Abstract: | The result of experiment of plant thinning showed that the competition between three groups of grasses(Lolium perenne,Dactylis glomerata,D.glomerata+L.perenne)and Trifolium repens was significant,so was the effect of the competition on the architecture of T.repens.The order of competitive balance index were,D.glomerata+L.perenne>D.glomerata>L.perenne so was the competitive index with the value of 0.32,0.47,0.71,respectively.With the increase of competitive index of grasses and T.repens,either density of arc... |
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| Keywords: | Trifolium repens grass population competition between species architecture |
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