Isolation and characterization of some important fungi from Echinochloa spp. the potential agents to control rice weeds
نویسنده
چکیده
Barnyard grass (Echinochloa spp.) is the most important weeds in rice fields. Some fungal pathogens can potentially be used as biological agents for the control and management of these weeds. For this reason, two pathogenic fungal species were isolated and characterized from naturally infected Echinochloa species. Morphological characters of isolates were studied in order to identify the taxonomy. According to the results, isolates were belonged to Alternaria alternata (Fries) Keissler, and Fusarium equiseti (Corda) Saccardo. Pathogenicity test of isolates was done in desiccators, and revealed the pathogenicity level of the species and their ability to cause leaf blight on Echinochloa spp. The results indicated that not only the symptoms but also the virulence of these two fungi are significantly different.
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