Suppression of Fusarium wilt of cucumber by ammonia gas fumigation via reduction of Fusarium population in the field.

ABSTRACT: Cucumber plants subjected to consecutive monoculture for 9 years were found to suffer from severe Fusarium wilt disease, caused by the soil-borne fungus Fusarium oxysporum f. sp. Cucumerinum J. H. Owen. In the present study, greenhouse experiments were performed to evaluate the influence of ammonia gas fumigation on Fusarium wilt suppression, fungal abundance and fungal community composition. Results showed that ammonia gas fumigation remarkably reduced disease incidence from 80% to 27%, resulting in a four-fold increase in yield, compared to the control. Total fungal abundance declined dramatically after fumigation and reached the lowest level at day 32, at 243 times lower than the control. Moreover, fumigation significantly increased soil fungal diversity, though it also decreased consid

SUBMITTER: Zhao J 

PROVIDER: S-EPMC5322401 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature