Naringenin enhanced efficiency ofRhizobium meliloti-alfalfa symbiosis

Abstract
Rhizobium meliloti-alfalfa (Medicago sativa) symbiosis was influenced by the rhizospheric application of naringenin which increased nodule number, nodule weight (2-to 8-fold) and nitrogenase activity. Plant blomass and total nitrogen content also increased by 60 to 72%. The enhancing effects of naringenin were more pronounced if it was applied at the early vegetative stage of plant growth or at the time of sowing.