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Article

First record of white rot on Ipomoea batatas caused by Sclerotinia sclerotiorum in China

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Pages 354-358 | Received 01 Jul 2020, Accepted 08 Sep 2020, Published online: 14 Oct 2020
 

Abstract

Collapsed vines of sweet potato (Ipomoea batatas) plants were observed in Jining fields in September 2019. In some cases, the whole plant had been killed due to the infection of crown. The size of sclerotia formed on infected tissues ranged from 0.6 to 1.5 cm in diameter. A number of sclerotia were sampled from infected fields and transferred to laboratory. After molecular assessment of the isolate SSd925 and fulfillment of Koch’s Postulates, the pathogen was identified as Sclerotinia sclerotiorum. To our knowledge, this is the first report of S. sclerotiorum on sweet potato in China.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This project was supported by the Special Fund for Agro-scientific Research in the Public Interest (201003066-2-2).

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