论文部分内容阅读
在植物光合性状中,光-光合曲线是重要的生理特性之一。这条曲线可以反映出光补偿点、光饱和点及不同光强下的光合速率。光补偿点的高低,可表示植物对弱光的利用情况。在一般情况下,光补偿点越低,表示对弱光的利用能力越高。在低光强、半饱和光强、饱和光强下,光合速率高低,可反映出光化学反应速度快慢,曲线的倾斜度(斜率)增大,表明植物对光能利用效率高。因此,光-光合曲线的变化特点,低光补偿点,
Among plant photosynthetic traits, light-photosynthetic curve is one of the important physiological characteristics. This curve can reflect the light compensation point, light saturation point and photosynthetic rate under different light intensity. Light compensation point level, can be expressed by plants on the use of low light conditions. In general, the lower the light compensation point, the higher the ability to utilize weak light. Under low light intensity, semi-saturated light intensity and saturated light intensity, the photosynthetic rate may reflect the speed of photochemical reaction and the slope (slope) of the curve increases, indicating that the plant has high light energy utilization efficiency. Therefore, the light - photosynthetic curve changes characteristics, low light compensation point,