Plasticity of Alternanthera philoxeroides in response to three karst habitats.
Since the invasion of Alternanthera philoxeroides around in our country since the widely spread, has an important impact on the production and life of the people. Plasticity is an important feature of invasive plants, we studied indexs of plasticity A. philoxeroides providing scientific basis for the prevention and cure in different habitats. The results were as follows: (1) There were obvious differences in internode length, leaf area per plant, total weight and leaf dry weight of A. philoxeroides in rock environment, road and aquatic habitats. (2) Asexual reproduction organs of stem biomass was the largest in rock environment, followed by the road and the river habitat. (3) Internode and leaf area of A. philoxeroides increased with the rock, road and aquatic environment. (4) In the lack of water rocks environment, A. philoxeroides increased reproduction by short internode and increase the mass.