Spectral resolution (full width at half maximum, FWHM) and corresponding sensors used to simulate new spectra and retrieve new a* and MPB_LUE values for estimating ETR.

Slope and R2 of linear regression between ETR estimated from fluorometry and radiometry are reported. All regressions are significant (p < 0.001), except (1); (2) Future sensors; (3) Spectral sampling is indicated when different of the FWHM.