气孔频度 meaning in Chinese

stomatal frequency

Characterization of stomatal frequency , stomatal index and guard cell length stomatal characteristics appear to be related to variations in net photosynthetic rate and water - use efficiency ( sellers et al , 1996 ) . here , the stomatal frequency , the guard - cell length and the stomatal index of non - leaf organs were investigated comparatively between the ear and the leaf of wheat . the results showed that stomatal frequency of non - leaf organs is significantly lower than that of leaves , whereas the guard - cell length and stomatal index showed different variation patterns in both leaves and non - leaf organs
另外，本文还着重讨论了非叶器官气孔频度对作物光合作用的影响，并提出了在非叶器官中可能存在与此相适应的未知的光合类型叶绿体是作物进行光合作用的场所，通过对小麦、水稻非叶器官及功能叶叶绿体超微结构的比较研究，发现非叶器官单个光合细胞中叶绿体的数量较少，体积也较小。