Formulation of a Structural Equation Relating Remotely Sensed Electron Transport Rate Index to Photosynthesis Activity

Chlorophyll fluorescence can be remotely sensed in open fields via the Fraunhofer atmospheric absorption lines of oxygen and is termed Solar-Induced Fluorescence (SIF). SIF has been extensively related to carbon assimilation at global ecology scale was interpreted as electron transport rate. However, shown unrelated directly finer-scale resolution may other photosynthetic processes, such non-photochemical quenching. This raises question how exactly relates actual activity. Based on a recently introduced spectral index that photochemical fraction rate, this study presents formulation structural equation, relating rate yield which considers various fates energetic quanta excitation. The proposed equations are used examine interpret relation between novel seasonal growth corn (Z. mays Sh2, ‘super sweet’) platform fertilization concentration gradient. Potential uses, practical theoretical, for discussed.