光合单位

光合单位和叶片光合的理论速率

Photosynthetic Unit and Theoretical Rate of Leaf Photosynthesis

通过用整体植物作的试验，又把光合单位定义为生理学的功能单位。

The photosynthetic unit then is a physiological unit of function defined by experiments with intact plants .

平均结果为光合单位

Photosynthetic unit Mean Entropy

叶绿素含量反映体内含氮水平与单位叶面积的光合单位数，可衡量植株衰老程度和光合作用能力强弱。

Chlorophyll content reflects the number of photosynthetic units of per unit leaf area and the plant nitrogen level , and represents the photosynthetic ability and the aging degree of a plant .

甘蔗是C4作物，其光能转换效率、光合速率、单位面积生物产量显著高于其它作物，具有高净能比，适应性广、耐旱、产量潜力大。

As a C_4 plant , sugarcane is rather high in light inversion efficiency , photosynthetic rate and biomass productivity , which make it the highest in net energy rate .

结果表明：SA可提高黄瓜幼苗叶片中的叶绿素含量，增大光合强度，使单位面积干物质含量增加。

The results showed that the SA increased the chlorophyll content of cucumber leaves , and reinforced the intensity of photosynthesis , and increased the percentage of DW FW of unit area ;