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几种常绿植物光合特性的季节变化

贺东祥, 沈允钢

中科院上海植物生理研究所. 上海 200032

摘要

珊瑚树和女贞适应环境温度变化的能力较强, 它们的光合最适温度的变化范围比较大, 在四季均保持较高的光合活力, 光合量子效率和F_(v)/F_(m)值较高, 而孝顺竹和棕榈 适应环境温度变化的能力较差, 只在春秋两季有较高的光合活力。这些差别和它们的自然分布有联系。图3表2参12

关键词： 光合作用; 可变荧光与最大荧光的比值; 常绿植物; 温度效应

Seasonal changes of photosynthetic characteristics of four evergreen plants

He Dongxiang, Shen Yungang

Shanghai Institute of Plant Physiology, Chinese Academy of Sciences. Shanghai 200032

Abstract

Net photosynthetic rate (P_(n))and dark respiratory rate (R_(d)) of sun leaves of four evergreen plants (V. odoratissimum, L. lucidum, B. multiplex and T. forlunei) grown in Shanghai at different temperatures were measured with an ADC CO_(2)infrared analyzer at saturated photosynthetically active radiation in four seasons of a year. The results showed that autumn was the best season for photosynthesis of all these plants tested. V. odoratissimum and L. lucidarm wer more adaptable to the changing natural environment thab B. mailtiplex and T. fortunei. These differences of acclimation of plaants seems to be related to hier natural distribution, for Shanghai is almost the northern boundary of habitat of B. multiplex and T. fortunei while V. odoratissimaum and L. lucidum can distribute in the north far from Shanghai.

Key words: Photosynthesis;The ratio of variable andmaximum fluorescence;Evergreen plant;Temperature effect

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引用本文：

贺东祥, 沈允钢. 几种常绿植物光合特性的季节变化[J]. 生理学报 1995; 47 (1): .

He Dongxiang, Shen Yungang. Seasonal changes of photosynthetic characteristics of four evergreen plants. Acta Physiol Sin 1995; 47 (1): (in Chinese with English abstract).