一、光与光合作用(1)光质(图1)复色光(白光)下,光合速率最快;单色光中,红光下光合速率最快,蓝紫光次之,绿光最差。故温室大棚常用无色透明薄膜。图1(2)光强度当植物处于高光强下,会导致叶绿体损伤,使PSⅡ电子传递速率和光合磷酸化活性下降,这种现象称为光抑制作用。阴性植物的 First, light and photosynthesis (1) Light quality (Figure 1) Under the complex color light (white light), the photosynthetic rate of the fastest; monochromatic light, the red under the fastest photosynthetic rate, followed by blue-violet light, green light worst. Greenhouse so common colorless and transparent film. Figure 1 (2) light intensity when the plant is in high light intensity, can lead to chloroplast damage, the PSII electron transfer rate and photosynthetic phosphorylation activity decreased, a phenomenon known as photo-inhibition. Negative plants