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Articles

CO₂-GAS EXCHANGE OF ATTACHED FRUIT IN APPLES

Article number

240_40

Pages

217 – 220

Language

Abstract

Photosynthesis was high in young apple fruits and decreased to low levels at fruit ripeness.
Apple fruit are able to refix CO₂ via PEPC (phosphoenol pyruvatecarboxylase) and PEPCK.(phosphoenol pyruvatecarboxykinase). By this means a large portion of the internal CO₂ can be recovered and saved, especially if assimilate supply from the leaves is restricted or at high light intensity.
However, at all developmental stages of the fruit more CO₂ will be lost by respiration than gained by CO₂-fixation.
This is pronounced at early fruit development and at maturity.

Publication

Australian Temperate Fruits Review Conference

Authors

F. Lenz

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1989.240.40

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