Seasonal changes in photosynthetic activity and chlorophylls in the Scots pine and Siberian spruce with optimal or insufficient moistening

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...

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Bibliographic Details
Published in:Contemporary problems of ecology 2011-12, Vol.4 (6), p.626-633
Main Authors: Suvorova, G. G., Oskorbina, M. V., Kopytova, L. D., Yan’kova, L. S., Popova, E. V.
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Chlorophyll
Drought
Ecology
Environmental factors
Evergreen trees
Forests
Life Sciences
Photosynthesis
Picea
Pine needles
Pine trees
Pinus sylvestris
Plant ecology
Plant populations
Seasons
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Summary: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.
ISSN:1995-4255
1995-4263
DOI:10.1134/S1995425511060105