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- Title
PHOTOSYNTHESIS IN DESICCATED SHOOTS OF <em>POLYTRICHUM</em>.
- Authors
Penny, M. G.; Bayfield, N. G.
- Abstract
The desiccation responses of four species of <em>Polytrichum</em> ere examined. The relationship between CO2 assimilation and shoot water content was similar in <em>Polytrichum commune</em> and <em>Polytrichum piliferum</em>, the species most dissimilar in ecological requirements. There were, however, considerable differences between species in recovery following various desiccation treatment. Continuous desiccation was found to be more damaging than the same total period of desiccation interrupted by periods of wetting. <em>Polytrichum commune</em> and <em>Polytrichum piliferum</em> after rewetting more than treatment at 55% or 90% r.h. Subsequent recovery was generally better following the 90% r.h. treatment. Slow desiccation of <em>Polytrichum commune</em> was substantially less damaging than rapid drying.
- Subjects
PHOTOSYNTHESIS; POLYTRICHUM; CARBON monoxide; WATER; ECOLOGY; POLYTRICHACEAE
- Publication
New Phytologist, 1982, Vol 91, Issue 4, p637
- ISSN
0028-646X
- Publication type
Article
- DOI
10.1111/j.1469-8137.1982.tb03343.x