Seasonal changes in photosynthetic activity and chlorophylls in the Scots pine and Siberian spruce with optimal or insufficient moistening
Authors:
- 29 December 2011
- journal article
- Published by Pleiades Publishing Ltd in Contemporary Problems of Ecology
- Vol. 4 (6) , 626-633
Abstract
The paper studies the seasonal changes in photosynthetic activity and concentration of chlorophylls in the needles of the Scots pine Pinus sylvestris L. and Siberian spruce Picea obovata Ledeb. depending on the environmental factors. In drought, the daily peaks of photosynthesis are regulated by the level of moisture in the needles and concentration of chlorophylls. The work of chlorophyll is 2–6 times more effective with optimal moistening than in drought.Keywords
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