Method for predicting potential maximum photosynthetic capacity of plants based on characteristic wavelengths

The invention discloses a method for predicting potential photosynthetic capacity of plants based on characteristic wavelengths. The method comprises the following steps: setting culture environmentswith the same temperature, humidity and CO2 concentration under six illumination gradients, randomly selecting plant leaves as experimental samples when plants under different illumination treatmentsare different, and respectively measuring dark fluorescence parameters and visible-near infrared reflection spectra of the plant leaves as sample data; rejecting abnormal samples by adopting a Monte Carlo method, and randomly dividing a training set and a test set according to a ratio of 4: 1; extracting characteristic wavelengths by adopting a correlation coefficient method and a continuous projection method; establishing a plant potential maximum photosynthetic capability prediction model by taking the reflection spectrum corresponding to the characteristic wavelength as an input and takingthe plant potential maximum