Diagnosis of change in growth of crops by an image instrumentation method of chlorophyll fluorscence transients

为了早期发现作物的生长变化，有必要测量光合作用和形态变化等生理变化。由于叶绿素a在暗-光转换（CFI）过程中荧光强度的快速变化反映了光合作用的各种反应，特别是光合电子传递系统，因此利用CFI图像分析来早期检测生长变化。从CFI模式与发育叶片碳同化的关系出发，探讨了CFI模式在光合机构发育过程中的变化。因此，通过CFI模式的图像分析来诊断叶片生长阶段和叶位的变化。该方法还可用于诊断叶片光合机构受到的环境胁迫。

For early detection of change in crop growth, it is necessary to measure physiological change such as photosynthesis as well as morphological change. Since rapid changes in intensity of chlorophyll a fluorescence during dark-light transition(CFI)reflect the various reactions of photosynthesis, especially the photosynthetic electron transport system, an image analysis of CFI was used for early detection of growth change. From the relationship between patterns of CFI and carbon assimilation in developing leaves, it was probed that the CFI patterns changed in development of photosynthetic apparatus. So, the changes in growth stage of leaves and leaf sites were diagnosed by image analysis of CFI patterns. This method was also used to diagnose environmental stresses to photosynthetic apparatus of leaves.