1. Species and pathogenicity of Fusarium causing soybean root rot in northeast China.
- Author
-
Wang Xiao - yan and Wen Jing - zhi
- Subjects
SOYBEAN research ,ROOT diseases ,FUSARIUM solani ,FUSARIUM diseases of plants - Abstract
1 199 of Fusarium spp. isolated from diseased soybean plant roots were collected from three provinces in northeast China during 2007 to 2010. They belonged to 8 species as F. oxysporum, F. solani, F. graminearum, F. semitactum, F. verticillioides, F. avenaceum, F. equiseti and F. chlamydosporum, which occurrence frequencies were 36.45 %, 25.35 %, 11.43 %, 10.76%, 6.76%, 4.42%, 3.84% and 1.00% respectively. They existed in Heilongjiang province. Among them, F. chlamydosporum was first discovered. F. avenaceum and F. verticillioides were not found in Jilin province. F. avenaceum and F. chlamydosporum were not found in Liaoning province. These Fasarium species exhibited different pathogenicity on soybean cuhivar Hefeng 25. F. oxysporum had strong pathogenicity to soybean. F. solani, F. graminearum, F. semitactum, F. avenaceum, F. equiseti and F. chlamydosporum had mid - level pathogenicity. F. verticillioides showed weak pathogenicity to soybean. The symptoms of soybean root rot caused by eight Fusarium species were different. [ABSTRACT FROM AUTHOR]
- Published
- 2011