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Journal of Plant Ecology Advance Access published online on March 13, 2008
Journal of Plant Ecology, doi:10.1093/jpe/rtn004
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© The Author 2008. Published by Oxford University Press on behalf of the Institute of Botany, Chinese Academy of Sciences and the Botanical Society of China. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Nutrient-patch contrast in relation to clonal integration, with special reference to Glechoma longituba

Lili Zhang and Weiming He*

State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China

* Correspondence address. State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China. Tel: 86-10-82595899; Fax: 86-10-82595899; E-mail: weiminghe{at}ibcas.ac.cn.

If clonal integration is dependent on source-sink relationships within a clone, then increased nutrient-patch contrast might enhance integration. To test this we conducted an experiment in which Glechoma longituba was subjected to contrasting patch contrasts. The findings that physiological and growth traits varied with nutrient-patch contrast suggest that patch contrast may play an important role in determining integration intensity and direction.

Keywords: nutrient-patch contrast • clonal integration • Glechoma longituba


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