Effect of Thiram on the Bacteria-Pea (Pisum sativum) Symbiotic Complex

Background: Algerian agriculture, like many developing countries, has developed production systems based on the use of phytosanitary products. But today, these products is called into question, with awareness risks they can generate for environment, and even human health. Methods: A trial was conducted in greenhouse two varieties pea (Pisum sativum), without thiram treatment (recommended dose), to estimate effect latter establishment symbiosis biological nitrogen fixation. In addition, a rhizospheric soil microflora count carried out determine assess bacterial concentration including PGPRs each sample from tested treatment. Result: The fungicide variety choice have no number nodules fresh dry weight aerial root parts, low nodulation be attributed population native rhizobia soil. observed region Gros Vert treated compared untreated control Onward variety; this result may due influencing abundance differential response between cultivars same species.