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Functional Plant Biology Functional Plant Biology Society
Plant function and evolutionary biology
RESEARCH ARTICLE

Influence of Light on Assimilate Partitioning in White Clover (Trifolium repens L.)

SV Pasumarty and DW Fountain

Australian Journal of Plant Physiology 20(3) 323 - 328
Published: 1993

Abstract

In order to identify factors which might contribute to the premature abortion of young inflorescences of white clover Trifolium repens L. in low irradiances, a study was made of the possible role of limiting photosynthetic assimilates to the developing inflorescence.

The relationship between the irradiance and distribution pattern of assimilates in the clover plant under different irradiances was determined. Besides driving the photosynthetic supply of sucrose, light seems to play an indirect role in controlling partitioning of photoassimilates. Under low irradiance, the growing tip of the shoot and roots were major sinks and negligible amounts of 14C-labelled assimilates were supplied to the inflorescence. In medium and high irradiances, the inflorescence competes for assimilates with stolon apex and roots.

https://doi.org/10.1071/PP9930323

© CSIRO 1993

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