Effect of neighbor grasses interference on the architecture of Trifolium repens

Abstract

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.

CLC Number:

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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