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Relative Competitive Ability of Lolium perenne and the Alien Invasive Weed, Eupatorium adenophorum (Compositae) at Seedling Stage(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2007 Vol.13 No.1
Page:
29-32
Research Field:
Reviews
Publishing date:

Info

Title:
Relative Competitive Ability of Lolium perenne and the Alien Invasive Weed, Eupatorium adenophorum (Compositae) at Seedling Stage
Author(s):
ZHU Hongweiet al.
Keywords:
Keywords Lolium perenne Eupatorium adenophorum competition alien invasive weed replacement control
CLC:
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PACS:
DOI:
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DocumentCode:

Abstract:
Abstract To study the revegetation by Lolium perenne for managing the problems with recolonization of Eupatorium adenophorum after uprooted or its colonization to wasteland,the multiple de Wit design was performed with a regime of densities and proportions to evaluate the relative competitive ability of the two plants at seedling stage. The competition was measured by using the relative yield (RY), relative yield total (RYT), mean aggressive index (A) and phenological traits. The RYT was close to 1.0, which implied that the two plants competed for the same resources. At all densities and proportions the yield of E. adenophorum in mixture was significantly less than that in monoculture but L. perenne manifested in contrary to E. adenophorum, indicating that L. perenne was a better competitor than E. adenophorum. The conclusion was also supported by phonological performances. The plant height and aboveground biomass of L. perenne were not affected by mixture with E. adenophorum compared with monoculture and even more ramets were produced in mixture. On the contrary, E. adenophorum in mixture grew smaller with fewer ramets and less biomass than in monoculture. The possibility of using L. perenne for revegetation to control E. adenophorum is disscused in this paper. Fig 1, Tab 3, Ref 18

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Last Update: 2007-03-06