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Morphological and physiological changes in black alder induced by water stress

Morphological and physiological changes in black alder induced by water stress Abstract. Black alder seedlings were exposed to 12 weeks of sublethal water stress by watering only when visibly wilted. Control seedlings were watered regularly throughout the treatment period. Stressed seedlings exhibited significant osmotic adjustment of over 0.4 MPa. The water stress treatment also significantly reduced leaf size, increased epicuticular wax content, and increased the root shoot ratio. The response of leaf conductance to decreasing leaf water potential was influenced by the previous water stress treatment Stressed seedlings had a much lower initial leaf conductance, but showed a gradual drop in leaf conductance as leaf water potential decreased; whereas, control seedling leaf conductance fell rapidly. These morphological and physiological modifications in response to moisture stress have the potential for significantly improving black alder drought tolerance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Cell & Environment Wiley

Morphological and physiological changes in black alder induced by water stress

Plant Cell & Environment , Volume 8 (3) – Apr 1, 1985

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References (22)

Publisher
Wiley
Copyright
Copyright © 1985 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0140-7791
eISSN
1365-3040
DOI
10.1111/1365-3040.ep11604616
Publisher site
See Article on Publisher Site

Abstract

Abstract. Black alder seedlings were exposed to 12 weeks of sublethal water stress by watering only when visibly wilted. Control seedlings were watered regularly throughout the treatment period. Stressed seedlings exhibited significant osmotic adjustment of over 0.4 MPa. The water stress treatment also significantly reduced leaf size, increased epicuticular wax content, and increased the root shoot ratio. The response of leaf conductance to decreasing leaf water potential was influenced by the previous water stress treatment Stressed seedlings had a much lower initial leaf conductance, but showed a gradual drop in leaf conductance as leaf water potential decreased; whereas, control seedling leaf conductance fell rapidly. These morphological and physiological modifications in response to moisture stress have the potential for significantly improving black alder drought tolerance.

Journal

Plant Cell & EnvironmentWiley

Published: Apr 1, 1985

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