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Effect of light intensity on partitioning of photosynthetic electron transport to photorespiration in four subtropical forest plants

机译:光强度对四种亚热带森林植物光合作用电子传递分配给光呼吸的影响

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摘要

Photosynthetic rate (P_n) and the partioning of noncyclic photosynthetic electron trans- port to photorespiration (J_o) in seedlings of four subtropical woody plants growing at three light intensities were studied in the summer time by measurements of chlorophyll fluorescence and CO_2 exchange. Except schima superba, an upper canopy tree species, the tree species Castanopsis fissa and two understory shrubs Psychotria rubra, Ardisia quinquegona had the highest P_n at 36/100 of sunlight intensity.
机译:通过测量叶绿素荧光和CO_2交换,研究了夏季三种光强度下生长的四种亚热带木本植物幼苗的光合速率(P_n)和非环状光合电子传递向光呼吸的分配(J_o)。除了上层冠层木荷,马齿,和两个林下灌木Psychotria rubra以外,昆山Ardisia quinquegona在日光强度为36/100时具有最高的P_n。

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