禾草种群对白三叶构型的影响

草业学报 ›› 2010, Vol. 19 ›› Issue (1): 28-34.

禾草种群对白三叶构型的影响

李响¹,王平^1*,孙守梅²,包国章³

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

收稿日期:2009-04-09 出版日期:2010-01-25 发布日期:2010-02-20
作者简介:李响(1983-),男,辽宁沈阳人,在读硕士。E-mail:leehonk@163.com
基金资助:
:国家自然科学基金(30570269),中国博士后科学基金(20060390908)和教育部留学回国人员科研启动基金资助

Effect of neighbor grasses interference on the architecture of Trifolium repens

LI Xiang¹, WANG Ping¹, SUN Shou-mei², BAO Guo-zhang³

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

Received:2009-04-09 Online:2010-01-25 Published:2010-02-20

摘要/Abstract

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。

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 architecture and branch, or branching intensity,branching angle and caloric content of T. repens decreased while the internode length increased significantly. The trend of change of energy allocation of root and stem of certain length was the same of that of the density of architecture.

中图分类号:

李响,王平,孙守梅²,包国章³. 禾草种群对白三叶构型的影响[J]. 草业学报, 2010, 19(1): 28-34.

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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