Fig. 4From: Improving the prediction performance of leaf water content by coupling multi-source data with machine learning in rice (Oryza sativa L.)Image map of the coefficient of determination (R2) and coefficient of determination (RMSE) for screening sensitive band combinations of two wavebands at different growth stages of rice plants. a–d and e–h represent R2 and RMSE of the booting, flowering, initial grain filling, and middle grain filling stages, respectivelyBack to article page