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Çѱ¹»ýÅÂÇÐȸ / v.18, no.1, 1995³â, pp.137-146
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( Seasonal Changes of Chlorophyll Contents and Photosynthetic Rates in Four Species of Maple Trees in Korea )
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Acer pseudo-sieboldianum, A. ginnala, A. negundo and A. saccharinum were selected as materials for the studies on the seasonal fluctuation of chlorophyll content and photosynthetic rates. In all the four species during the growing season except in October, the principal component that determined the total chlorophyll content was chlorophyll a. Content of chlorophyll b increased with leaf age, but that of chlorophyll a decreased. In contrast to A. saccharinum and A. pseudo-sieboldianum which showed their maximum chlorophyll content in June, A. negundo, which showed the highest chlorophyll content of the four species, exhibited its maximum chlorophyll content in July, whereas September in the case of A. ginnala. The fluctuation of chlorophyll content was similar to that of air temperature, and it increased till July. But chloprophyll content showed a significant relationship in early stage of leaf development, and there could be any interdependence between them in accordance with the seasonal change, no longer. In all four species light compensation points decreased in accordance with the seasonal change, and the maximum photosynthetic rates were obtained in August. Respiratory rates were shown no significant difference among species, and they decreased according to the adbance of season.
 
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Chlorophyll contents;Photosynthetic rates;Respiratory rates;Seansonal changes;
 
The Korean Journal of Ecology / v.18, no.1, 1995³â, pp.137-146
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ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199511919966617)
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