On stomatal behavior in the Greenland Mountain birch
DOI:
https://doi.org/10.7146/mogbiosci.v33.142414Abstract
The study was conducted to determine response of birch stomata to evaporative demand and plant internal water status. The experiment was undertaken in Qinguadalenat a site with microtopographical variation. Comparisons were made between trees from a dry hill and from a moist river bank, respectively.
Under natural "stress" conditions, with high air temperature and low humidity, birches in both habitats did not exhibit any significant stomatal response to evaporative demand or low xylem-water potential. Under artificial stress two different patterns appeared. Dry habitat birches closed their stomata abruptly with decreasing xylem-water potential, while stomata! closure in moist habitat trees was gradual.
Downloads
Published
Issue
Section
License
Coypyright by the authors and the Commision for Scientific Research in Greenland / Danish Polar Center/Museum Tusculanum Press as indicated in the individual volumes. No parts of the publications may be reproduced in any form without the written permission by the copyright owners.