Assessing the near infrared spectroscopy tool to explore phytochemical profle of Nothofagus antarctica (ñire) leaves

MATTERA G.; BATISTELLI M.; PERI P.L.; MARTÍNEZ-MEIER A.

Mendoza

Congreso; VIII Congreso Forestal Latinoamericano - V Congreso Forestal Argentino; 2023

INTA, Asociación Forestal Argentina (AFoA) y CONICET

Plants have evolved to detect adverse environmental conditions and generate diverse biochemical, morphological and physiological responses in order to grow and survive at a specific environment. is study aimed at assessing the ability of near infrared spectroscopy (NIRs) tools to distinguish the phytochemical profile (including the production of antioxidants such as phenolic compounds) in leaves of two N. antarctica populations. Diferentiation among the scores of each population was observed, which was higher when considering the First Derivate pre-processing data array. Similar results were found when it was considered only the spectral range of C-H of phenolic compounds. In the case of spectral range that includes phenolic compounds, the studied populations showed dierential performances; thus, diverse physiological responses could be taking place regarding the growing environmental conditions. These findings are highly relevant in order to understand the eco-physiological performance of this species to climate change.