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Fig. 9 | Plant Methods

Fig. 9

From: Estimation of area- and mass-based leaf nitrogen contents of wheat and rice crops from water-removed spectra using continuous wavelet analysis

Fig. 9

Coefficients of determination (R2) for the relationships of LMA with a MR spectra and b WR spectra derived wavelet features and c MR spectra and d WR spectra derived ND indices. Regions highlighted in red on the scalograms represent the top 1% R2 for wavelet features or ND indices. The downward arrows on the top of the figure indicate the wavelength locations of absorption features reported in [10] with 1580 nm for starch and sugar and 2270 nm for cellulose, sugar and starch

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