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Eero Väisänen (email), Pertti Hari, Seppo Kellomäki

Annual growth level of some plant species as a function of light available for photosynthesis.

Väisänen E., Hari P., Kellomäki S. (1977). Annual growth level of some plant species as a function of light available for photosynthesis. Silva Fennica vol. 11 no. 4 article id 4980. https://doi.org/10.14214/sf.a14834


A quantitative method for determining the annual growth level of plant species has been presented. In particular, attention was paid to the dependence of the growth level on the amount of light available for photosynthesis. A mathematical model for the dependence of structural matter production on photosynthetic production has been presented for some plant species.

The study is based on the assumption that the total amount of annual net photosynthesis plays a role of primary importance in determining the relationship between photosynthetic production and structural matter production. The basic environmental factors determining the photosynthetic rate are light and temperature, if the water and nutrient supply is adequate. The dependence of photosynthetic rate on light and temperature was determined by monitoring the CO2 uptake rate of natural plant populations between the photosynthetic levels of different plant populations with an infrared gas analyser.

The PDF includes a summary in Finnish.

light; temperature; methods; annual growth; forest vegetation; net photosynthesis

Published in 1977

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Available at https://doi.org/10.14214/sf.a14834 | Download PDF

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