An agar plate method has been developed for the rapid, preliminary screening of large numbers of rhizobia for tolerance to acidity and aluminum (acid-Al). Media containing pH indicators are used, and distinguish true tolerance from cases where growth depends on a previous pH shift. Strains which were highly tolerant or sensitive to acid Al on agar behaved similarly in defined liquid media. Stra...

Crown gall, caused by Agrobacterium tumefaciens (syn. Rhizobium radiobacter), is characterized gall formation on crowns, stems or roots many plant species. We describe the occurrence of this disease for first time cannabis (Cannabis sativa L. marijuana) plants in two licenced production facilities British Columbia. Galls were observed and several genotypes, including ‘White Rhino’, ‘Pink Kush’ ...

Soybean has the potential to bring significant benefits in diversified cropping systems, which could help restructuring soil fertility and allow smallholders increase grain yield. Rhizobium inoculation improves biological nitrogen fixation (BNF) legume crops assists resource-poor farmers yield at lower financial costs. The efficacy of symbiotic bacteria on legumes can also be improved...

in order to investigate the effect of rhizobium bacteria, mycorrhiza fungi and foliar application of urea on qualitative and quantitative traits of soybean an experiment was conducted based on randomized complete block design with four replications. the experiment included six treatments as: control (c), rhizobium bacteria (r), rhizobium bacteria + mycorrhiza fungi (r+m), rhizobium bacteria + f...