NODULATION STUDY AND ASSESSMENT OF RHIZOBIA STRAINS ISOLATED FROM LOCAL POPULATIONS OF Medicago truncatula FOR THEIR TOLERANCE TO SOME ENVIRONMENTAL STRESSES. - CHEBOUTI, Abderrezak; BESSEDIK, Fadila; MEZIANI, Nassila; AMRANI, Soraya (Annals of Oradea University, Biology Fascicle / Analele Universităţii din Oradea, Fascicula Biologie, 2022)