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Fig. 14 | Plant Methods

Fig. 14

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

Fig. 14

Effect of Narea on spectral variation between 2000 and 2120 nm (leaf panel) and 2100–2250 nm (right panel). a, c Represent the MR spectra and the corresponding wavelet power spectra at scale 3. b, d Represent the WR spectra and the corresponding wavelet power at scale 4. The location and width of the Gaussian-shaped wavelets for the best Narea-sensitive wavelet features WF2060,3 and WF2181,4 from MR and WR spectra are presented in (a) and (b), respectively. The black arrows in (c) and (d) point to the wavelength location of the WF2060,3 and WF2181,4, respectively

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Plant Methods

ISSN: 1746-4811