| Response of phenotypic plasticity of Potentilla anserine L． to soil moisture |
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| DOI：10.7606/j.issn.1000-7601.2004.03.28 |
| Key Words: soil moisture prostrate herb Potentilla anserine L. phenotypic plasticity |
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| Abstract: |
| The research was carried out to investigate the response of phenotypic plasticity of the prostrate herb Potentilla anserine L．to different soil moisture condition，i．e．，10％，25％，40％，55％，70％， 85％，100％ of field water capacity（ FWC） on the soil of castanozem．The results showed that the spacer length，lamina number，branching intensity，branching length and branching angle of Potentilla anserine L．changed by quadratic curve；The optimum habitat for the plant was about 64％ of FWC；The relationship between lamina length and soil moisture coincided to the yield density curve；The change of foliole space with soil moisture was simulated by logistic model．The architectural plasticity of clonal plants may enhance the exploitation of soil moisture resources，which have some ecological significance． |