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五、光合作用与作物、内部因素关系 1.不同作物或品种的光合强度存在差别作物种类不同,光合强度差异甚大,通常在良好的环境条件下,具有C_4途径固定CO_2的作物(即C_4植物)的光合强度比C_3植物高(表1)。
V. RELATIONSHIP BETWEEN PHOTOSYNTHESIS AND CROPS AND INTERNAL FACTORS 1. Differences in Photosynthetic Intensity between Different Crops or Cultivars Different types of crops have very different photosynthetic intensities. C_4 plants (ie C_4 plants) with C_4 fixation of CO_2 are usually under good environmental conditions. The photosynthetic intensity was higher than C_3 plants (Table 1).