Determination of Symbiotic Effectiveness of Rhizobium Strains Isolated from Food Legumes (Bean) Collected from Fez, Morocco

Abstract

This study was conducted in order to evaluate the symbiotic effectiveness of Rhizobium strains isolated from food legumes (Bean) collected from different sites in Fez city and regions (Morocco). For this purpose, 15 isolates were obtained. Seeds were inoculated with these isolates and grown in bags containing sterile soil in greenhouse under controlled plant growth conditions. 30 days after planting several measurements were carried out to assess nodulation, plant growth and N 2 fixation. Nodule number and dry weight were determined as an indication of inoculation response; shoot and Root dry weights as an indication of growth response, and N-uptake as an indication of nitrogen fixation effectiveness. The results of the experiment were statistically analyzed showed a statistically significant difference between the tested strains (P < 0.05).

The Screening of Plant Growth-promoting Rhizobacteria based on the Ability to Promote the Growth and Nodulation of Soybean (Glycine max L.) Seedlings

“…11,15 In addition, inoculation of legume seeds with effective Rhizobium strains is an advantage of using biological nitrogen fertilizers, it is expected to reduce chemical fertilizers and increase yields. 16 This research aimed to screen the Rhizobium isolates capable of forming the root nodule and fixing Nitrogen effectively and efficiently, which can further increase growth and ultimately lead to an increase in the crop yield, particularly in the case of soybean.…”