Abstract:

In the experiment, data of 46 citrus leaves was collected, half of them were used to establish model, and other half of them were used to verify model. The relationship between leaf water content and leaf reflectance was studied, models of leaves dry-basis moisture content based on spectral were established using stepwise regression method and constructing spectral indexes method respectively. As the result, model established using stepwise regression method has higher precision than model using another method. But we recommend model established using constructing spectral indexes method considering the physical meaning.