Evaluation of Germplasm Resistance in Several Soybean Accessions Against Soybean <i>Fusarium</i> Root Rot in Harbin, Heilongjiang Province, China.

ABSTRACT: Soybean root rot, caused by diverse soil-borne pathogens, is a major constraint on production worldwide, with yield losses ranging from 10 to 60% under epidemic conditions. Symptomatic plants were collected from three locations in Harbin, Heilongjiang Province, China, and 23 fungal isolates were recovered using standard tissue isolation procedures. Integrated morphological characterization and rDNA-ITS sequencing identified these isolates as three Fusarium species: F. oxysporum (18 isolates, 78%), F. equiseti (3 isolates, 13%), and F. brachygibbosum (2 isolates, 9%). Pathogenicity assays following Koch's postulates confirmed F. oxysporum as the predominant and most aggressive pathogen in this region. To identify resistance resources, 200 soybean germplasm

SUBMITTER: Qu X 

PROVIDER: S-EPMC12899736 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature