Impact of thermal stress and high vpd on gas exchange and chlorophyll fluorescence of citrus grandis under desert conditions

M. Veste, A. Ben-Gal, U. Shani

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

22 Scopus citations

Abstract

The photosynthetic response of Citrus grandis to high light intensities, low air humidity and high temperature stress was investigated under desert conditions in the southern Arava Valley (Israel). During summer, a typical midday stomatal closure was observed even in well-watered trees due to the dramatic increase of the leaf-to-air water vapour deficit. As a result of the reduced transpirational cooling, leaf temperatures increased up to 11 °C above ambient air temperature. The combination of heat stress and photoinhibition resulted in a reversible decrease of photosynthetic activity of Citrus grandis under the extreme summer conditions.

Original languageEnglish
Title of host publicationII ISHS Conference on Fruit Production in theTropics and Subtropics
PublisherInternational Society for Horticultural Science
Pages143-149
Number of pages7
ISBN (Print)9789066059221
DOIs
StatePublished - 2000

Publication series

NameActa Horticulturae
Volume531
ISSN (Print)0567-7572

Keywords

  • Heat stress
  • Photoinhibition
  • Photosynthesis
  • Temperature

Fingerprint

Dive into the research topics of 'Impact of thermal stress and high vpd on gas exchange and chlorophyll fluorescence of citrus grandis under desert conditions'. Together they form a unique fingerprint.

Cite this