title: Naz, a resistant cultivar on bean root rot disease in Zanjan province, northwest Iran.
abstract: Field bean is a major crops in different parts of northwest Iran especially Zanjan province. Recently the bean plants were severely subjected to damping off or decline disease which caused yield losses in bean growing regions. A regional research was done from 2003 to 2005 to get general information on the causal agent of disease and its control management. Infected plants were collected from different studied areas and transferred to laboratory. Crown and plant roots were cultured in PDA as common media and PPA as selective media for Fusarium species after surface sterilization with sodium hypochlorite. Plates were incubated in standard culture room then isolated fungi were identified. Different Fusarium species were isolated, however the main pathogen isolated from plant samples and soil around the roots was F. sambucium Fuckel. The disease caused up to 50% yield losses in some fields in studied areas. Study showed the "Naz" cultivar was the main resistant race to the disease and had the most yield production in the field.
authors.affiliation: Department of Plant Pathology, Faculty of Agriculture, Zanjan University, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Saremi
authors.forename: J
authors.initials: J
authors.lastname: Mohammadi
authors.forename: S M
authors.initials: SM
authors.lastname: Okhowat
mesh_terms: D015169:Colony Count, Microbial; D003470:Culture Media; D004305:Dose-Response Relationship, Drug; D007887:Fabaceae / Q000145:classification / Q000235:genetics / Q000276:immunology / Q000382:microbiology*; D005670:Fusarium / Q000145:classification / Q000472:pathogenicity*; D007113:Immunity, Innate / Q000235:genetics*; D007492:Iran; D008826:Microbial Sensitivity Tests; D010802:Phylogeny; D010935:Plant Diseases / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology; D012973:Sodium Hypochlorite / Q000494:pharmacology*; D013045:Species Specificity
chemical_list: D003470:Culture Media; D012973:Sodium Hypochlorite