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作 者 ：陶汉之

期 刊 ：作物学报 1991年 17卷 06期 页码：444-452

关键词：茶树；光合日变化；午休现象；光抑制；光合活性；

Keywords:Tea plant, Diurnal variation, Midday depression, Photoinhibition, Photosynthetic activities,

摘 要 ：茶树叶片光合日变化,双峰和单峰型都有出现。强光的光抑制是形成“午休”的主要原因:高温是午休的部分成因:光温适宜,低湿对“午休”的形成影响不大。强光下,伴随高温、低湿条件加剧强光的光抑制,光合日变化的第二个峰很不明显,整个下午光合速率很低。预遮光(黑暗或减低光强)和遮荫时的光合速率明显提高;夏季阴天时光合日变化

Abstract:Net photosynthetic rate(Pn)of tea leaves was measured with an infrared gasanalyser and also with half leaf method under conditions of different light intensity,temperature,air humidity and CO_2 concentration to investigated the cause of middaydepression.It was observed that the optimum temperature a

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