Résumé
Chemical and Nir spectra measurements were made on 60 sugarcane samples from different plant parts (leaves, stem or whole aerial part). Chemical parameters (total sugar content - TS, crude protein content - CP, acid detergent fiber - ADF, in vitro organic matter digestibility - IVOMD were determined. In parallel, reflectance spectra were measured using eight spectrometers. Absorbance data was calculated as log10 (1/Reflectance).To illustrate, PLS-R results are showed for TS and CP.