Validation results for the index, [1 - (R
)], calculated using R
(A) and broad-band spectra R
(B) from rice data. The coefficients between the predicted and actual measured chlorophyll contents were r2 = 0.91 (A) and 0.92 (B). The solid line represents the equation Chl
, and the dotted lines represent the root mean square error of the chlorophyll prediction.