Funding for this research was provided by:
The National Key Technology R&D program of China (2016YFD0101404)
China Agriculture Research System (CARS-18-25)
Jiangsu Collaborative Innovation Center for Modern Crop Production
Received: 23 January 2019
Accepted: 31 July 2019
First Online: 19 August 2019
Ethics approval and consent to participate
: Not applicable.
: All co-authors have consent for submission of manuscript.
: The authors declare that they have no competing interests.