Funding for this research was provided by:
National Key R&D Program of China (No.2016YFD0500900)
Text and Data Mining valid from 2019-04-11
Received: 18 August 2018
Accepted: 31 March 2019
First Online: 11 April 2019
Ethics approval and consent to participate
: We had obtained consent from farmers to collect the samples used in my study. We had obtained ethical approval to obtain the samples.
: Not applicable.
: The authors declare that they have no competing interests.
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