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作 者 ：林植芳;彭长连;林桂珠

期 刊 ：作物学报 1999年 25卷 03期 页码：284-290

关键词：叶绿素荧光碎灭；光氧化作用；日变化；甲基紫精；C3；C4植物；

Keywords:Chlorophyll fluorescence quenching, Photooxidation, Diurnal change, Methyl viologen, C3、C4plants,

摘 要 ：C3植物花生和C4植物甘蔗的光合色素含量、△A505nm、叶绿素荧光参数Fv/Fm, ΦPS Ⅱ，qN和qp呈日变化进程。中午前后，甘蔗的qN, qp, Fv/Fm和ΦPS Ⅱ的变幅比花生小，△A505nm的增值比花生大，叶绿素和类胡萝卜素仍维持较高水平，而此时花生的qN和qp皆下降。花生和苋菜(C4植物)经甲基紫精(MV)的光氧化处理后，叶片的MDA和蛋白

Abstract:Diurnal changes of chlorophyll fluorescence parameters，contents of photosynthetic pigments，the leaf absorption at 505nm，and the response to stronge light with methyl viologen-photooxidation treatment were compared between C3 plant peanut (Arachis hypogaea)and C4 plants sugarcane (Saccharum sinens

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