| 水稻中系8541与中系8240光合特性的比较研究 |
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| 引用本文： | 郭宗华,张其德. 水稻中系8541与中系8240光合特性的比较研究[J]. 北京农学院学报, 1993, 0(2) |
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| 作者姓名： | 郭宗华 张其德 |
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| 作者单位： | 北京农学院农学系，中国科学院植物所 北京102208 |
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| 摘 要： | 本文通过光合作用参数的测定,详细的研究了中系8541和8240两种不同产量水平的水稻品种的光合特性.论述了在含等量叶绿素的条件下,中系8541和中系8240之间在对光谱的吸收、叶片的光合作用量子转化效率,叶绿体的PSⅡ(光系统Ⅱ)潜在活性(Fv/F_0)和原初光能转化效率(Fv/Fm等的主要区别.实验结果说明,上述各光合作用参数中系8541都优于中系8240.不仅如此.在Mg~(2+)作用下,Fv/Fo和Fv/Fm比值的提高以及Mg~(2+)对两个光系统激发能分配的调节能力中系8541也强于中系8240.
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| 关 键 词： | 吸收光谱 荧光诱导动力学 荧光发射光谱 原初光能转化效率 激光能分配 |
Comparison of Photosynthetic Characteristics Between RiceZhongxi 8541 ＆ Rice Zhongxi 8240 |
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| Guo Zhonghua,Zhang Qide. Comparison of Photosynthetic Characteristics Between RiceZhongxi 8541 ＆ Rice Zhongxi 8240[J]. Journal of Beijing Agricultural College, 1993, 0(2) |
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| Authors: | Guo Zhonghua Zhang Qide |
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| Affiliation: | Guo Zhonghua,Zhang Qide Department of Agriculture,Beijing Agriculture College Institute of Botany,Chinese Academy of Sciences |
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| Abstract: | The photosynthetic charateristics of the high-yield rice varieties Zhongxi 8541and the low-yield Zhongxi 8240 have been studied through photosynthetic parameterstests in this paper. The experimental results show that with the condition of equal quantity of chloroplasts,Zhongxi 8541 is more capable and signficant for light absorption. It possesses higherrate of photosynthetic quantum conversion of leaf than that of Zhongxi 8240. AlsoZhongxi 8541 has higher potential activity of PS Ⅱ (F_r/F_m) and higher effcienry of pri-mary conversion of light energy(F_r/F_m) than Zhongxi 8240. Any more, the twoparameters mentioned above are even more different and the regulation capability ofexcitation energy aistribution between PS Ⅱ ane PS Ⅰ induced by Mg~(2+) in Zhongxi8541 is greater than that in Zhongxi 8240. |
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| Keywords: | absorption spectrum fluorescence induction transient flurescnce emission spectrum efficiency of primary conversion of light energy excitation energy distribution |
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