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Growth, water relations, and CAM induction inSedum album in response to water stress


Growth analysis indicated that carbon gain in the alpine succulentSedum album tended to take place early during the growing season. Leaf water potential remained unchanged for a considerable length of time after the imposition of water stress in the field. Induction of crassulacean acid metabolism (CAM) by protracted water stress occurred before any signs of stress could be observed in the leaves, and appeared to be influenced by a complex interaction of environmental conditions including temperature and duration of sunshine. Increased levels of proline and betaine towards the end of the growing season appeared to reflect seasonal changes.

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Sayed, O.H., Earnshaw, M.J. & Cooper, M. Growth, water relations, and CAM induction inSedum album in response to water stress. Biol Plant 36, 383 (1994).

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  • Water Stress
  • Betaine
  • Relative Growth Rate
  • Leaf Water Potential
  • Crassulacean Acid Metabolism