Some factors affecting rhizosphere fungi populations of faba bean roots [Vicia faba]
1988
Omar, S.A.M. | Salem, D.E. | El-Gantiry, S.M.M. (Agricultural Research Center, Giza (Egypt). Plant Pathology Inst.)
In a series of pot experiments in a glasshouse, rhizosphere fungi of faba bean cultivars at different stages of growth were studied, and their effects with the root-rot fungus Rhizoctonia solani, cultivar, crop residue, and fungicidal seed dressing were also determined. Inoculation with R. solani increased the fungi populations, where the highest counts were found at the vegetative and flowering stages. Cultivar Rebaya 40 seemed to stimulate rhizosphere fungi. Soil previously sown with soybean contained a higher number of rhizosphere fungi than that previously sown with maize or rice. Seed treatment with vitavax 200 and/or topsin 70 reduced the number of fungal colonies, but only during the first month of plant growth
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