Selection and Application of A Vam-Fungus for Promoting Growth and Resistance to Charcoal Rot Disease of Sunflower Var. Helico-250

Of the 7 VAM-fungi. Scutellispora auriglobosa was found consistently associated with sunflower var. Helico-250. Sunflower plants suffer from charcoal rot disease caused by Macrophomina phaseolina. Ten days old sunflower seedlings when inoculated with M. phaseolina either before or after 7 days of inoculation with the VAM-fungus were found to increase the growth of sunflower with reduction in the incidence of charcoal disease.