Efficacité d’utilisation du phosphore chez quelques génotypes d’arachide (Arachis hypogaea L.)

Abstract

This study highlighting the adapted responses of five genotypes of peanuts to the deficiency of phosphorus. Hence various treatment are used; the treatment of tricalcic phosphorus (CAP), super phosphorus (TSP) and inoculation by strain Bradyrhizobium sp. ; in order to identify the efficient genotype against the use of phosphorus and building up an association with the strain. The results obtained are among the various genotypes studied only the south ones are more efficient in using phosphorus in its form even soluble even the absence of Bradyrhizobium sp. Thus the outcomes of this deficiency well manifested in increase of dry biomass of aero part as well as the quantity of absorbed phosphorus by the plant, the utilization efficiency of phosphorus by plant. Inoculation and genetic variety especially of subject vegetable permit the adaptation with the deficiency phosphorus soil.