LED作为照明光源在现代光电仪器中得到广泛应用，光能利用效率与光学系统形式密切相关。
LED has been widely used as a kind of light source in modern optoelectronic devices. The light energy utilization efficiency and optical system form are closely related.
结果表明，植物光合作用-光响应曲线和光能利用效率能有效地评价植物对生长环境的适应性。
The results indicated that photosynthesis-light response curve and ILUE are useful to estimate the adaptation of plants to their habitat.
在生育后期的衰老过程中培矮64S/E32剑叶的PSII功能比汕优63下降慢，并具有更高的光能利用效率。
This suggests that there is a better PSII function for utilization of the absorbed light energy in Peiai 64S/E32 than in Shanyou 63 during the senescence of flag leaves.
当群体在早晚获得充分光照时，有利于提高群体光能利用总效率和总产量。
Sufficient light obtained by the wheat population in the morning and evening favored to enhance the total light energy efficiency of population and total yield.
当群体在早晚获得充分光照时，有利于提高群体光能利用总效率和总产量。
Sufficient light obtained by the wheat population in the morning and evening favored to enhance the total light energy efficiency of population and total yield.
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