Résumé:
This research is part of a sustainable agriculture strategy that seeks to assess the effects of
biochar, on two local barley varieties (Hordeum vulgare L.), specifically Saïda and Fouara,
during the germination and growth phases. The experiment utilized four escalating
concentrations of biochar. The goal of this study is to find the best dose of this organic
amendment for improving the species' physiological and metabolic health by looking at its
effects on several morpho-physiological parameters (Germination percentage, germination rate,
average stem length, average root length, Seedling Vigor Index, tolerance index, stem
phytotoxicity, root phytotoxicity), biochemical parameters (chlorophylls a, b, a+b; total
proteins; Total soluble sugars), and enzymatic parameters (CAT, APX). This study validates
that biochar, employed at a moderate dosage, can function as a biostimulant within the
framework of sustainable agriculture.
