新株型水稻的光合效率

 新株型（NPT）水稻的净光合速率（Pn）明显低于常规籼稻。叶绿素荧光分析表明，新株型水稻的原初光化学效率（Fv/Fm）明显高于常规籼稻；但是从单位叶绿素的饱和净光合速率、遮荫试验结果及PSII的光化学淬灭系数来看，新株型水稻的实际光能利用效率较常规籼稻低。这表明非光化学过程是限制新株型水稻光合作用的主要限制因素。作者从光能利用效率的角度讨论了新株型水稻的生理改良问题。

Photosynthetic Efficiency of a New Plant Type of Rice Developed by the International Rice Research Institute

The net photosynthetic rate of the NPT of rice is distinctly lower than that of conventional indica rice. According to chlorophyll fluorescence analysis, the primary photochemical efficiency of the NPT of rice is remarkably higher than that of conventional indica rice. In contrast, the practical light use efficiency of the NPT of rice, expressed whether as saturated net photosynthetic rate per unit fluorescence, is lower, indicating that non-photochemical physiological improvement of the NPT of rice is discussed chlorophyll or as photochemical quenching of chlorophyll processes are the major limiting factor to photosynthesis. The in terms of light use efficiency.