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Clonal Plasticity in Response to Partial Neutral Shading in the Stoloniferous Herb Potentilla reptans var. sericophylla 

ZHANG Shu_Min, CHEN Yu_Fu, DONG Ming  [WT6BZ](Institute of Botany, The Chinese Academy of Sciences, Beijing 100093, China)  
Ramet_pairs of Potentilla reptans L. var. sericophylla Franch from forest gap and forest understory were subjected to unshading, shading and partial shading treatments in a pot experiment. The genet biomass, total length of stolons, number of ramets, specific stolon weight, petiole length and specific petiole weight of the plant species under the shaded condition were smaller than those under the unshaded condition. The stolon internode length did not respond to the various treatments. In the plants from the forest gap, the petiloes of ramet grown in the shaded patch were longer as connected to plant part in the unshaded patch than as connected to plant part under the same shaded condition. Such modification of local response of ramet petiole to shading due to physiological integration was not observed in the plants from the understory. There was no effect of connection to ramets in shaded patches on the local response of the rest ramet characters to the partial unshading.
【Fund】: 国家杰出青年科学基金资助项目!( 3 982 5 10 6);; 国家自然科学基金资助项目!( 3 8770 13 2 ;;3 95 70 12 7);; 中国科学院生物科学与技
【CateGory Index】: Q785
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