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本研究的目的是进一步明确大豆根腐病的病原菌种类及其生物学特性。通过对病原菌的分离、培养、接种等系列试验和大量的田间试验,得出大豆根腐病是由尖孢镰刀菌芬芳变种等多种病原菌侵染所致,各种病原菌在生物学特性上略有差异。致病力以立枯丝核菌略强,田间症状特征主要由不同病原菌侵染决定。
The purpose of this study is to further clarify the pathogen species and biological characteristics of soybean root rot. Through pathogenic bacteria isolation, culture, inoculation and other series of experiments and a large number of field trials, the conclusion is that soybean root rot is caused by a variety of pathogenic fungi such as Fusarium oxysporum var. Spp., And the pathogenic bacteria are slightly biologically Differences. Pathogenicity to Rhizoctonia slightly stronger, the symptoms of the field mainly by different pathogen infection decision.