Competitive effects between Medicago sativa and Achnatherum inebrians

Abstract

Abstract: Through studying the effects of interspecific competition between Medicago sativa and Achnatherum inebrians, the results indicated the total biomass, relative yield and competitive balance index of M. sativa were significantly higher than those of A. inebrians, the relative yield total was significantly lower than 1. The relationships mentioned above become more obvious with decreasing of experimental plant community densities. The total biomass of A.inebrians at the densities of 4, 8 and 12 plants/pot in mixture decreased by 38.5%, 41.4% and 56.0% compared to those in monoculture, respectively. However, the total biomass of M. sativa at the same density between monoculture and mixture showed no significant difference.The relative competitive ability of M. sativa was higher, it will be a promising strategy for replacement control of A.inebrians by using M. sativa as a competitor.

CLC Number:

HUANG Xi, LI Chun-jie, NAN Zhi-biao. Competitive effects between Medicago sativa and Achnatherum inebrians[J]. Acta Prataculturae Sinica, 2012, 21(1): 59-65.

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