Contribution to the study of Gossypium arboreum seed extracts and their antimicrobial effect on certain pathogenic bacteria

O RAHIM; S GUERRAH

O RAHIM Laboratoire de chimie analytique, Département de Chimie, Faculté de mathématiques et sciences de la matière Université Kasdi Merbah-Ouargla. 30000, Ouargla-Algérie
S GUERRAH Laboratoire de chimie analytique, Département de Chimie, Faculté de mathématiques et sciences de la matière Université Kasdi Merbah-Ouargla. 30000, Ouargla-Algérie

Keywords: Gossypium Arboreum, extraction, flavonoids, lipids, chromatograph, antibacterial activity

Abstract

This work aims to study the comparative effect of three phosphate fertilizers (SSP Fosfactyl and Mono-ammonium phosphate) applied at different doses (30, 60 and 90 units P2O5/ha) on a culture of durum wheat Triticum durum var. CARIOCA conduct field under irrigation in the Saharan zone of south-eastern Algeria. The doses of phosphate fertilizers significantly influenced the grain yield of wheat. Dose 60 kg ha-1 P2O5 and 30 kg ha-1 P2O5generated gains of 9.94 and 9.65% respectively compared to the dose 90 kg ha-1 P2O5. Bestphosphorus and P exports by the kernels are obtained by the Single Super Phosphate fertilizer (SSP) and the dose level of 60 kg ha-1 P2O5. In addition, positive correlations were found between concentrations of phosphorus and potassium levels (r = 0.607***) on the one hand and magnesium (r = 0.882***) grains other.