https://www.selleckchem.com/pr....oducts/sb-204990.htm
The results suggested that the SPAD value of rice leaves under different disease levels are sensitive to different wavelengths. Compared with current VIs, a stronger positive correlation was detected between the SPAD value and the SFDI, reaching an average correlation coefficient of 0.8263. For the prediction model, the one built with support vector regression and SFDI achieved the best performance, reaching R , RMSE, and RE at 0.8752, 3.7715, and 7.8614%, respectively. This work provides an in-depth insight for accurately and robustl
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