Funding for this research was provided by:
National Basic Research Program of China (973 Program) (2018YFD0200604)
Shandong Modern Agricultural Technology & Industry System (SDAIT-02-10)
Shandong ‘Double Top’ Program (SYL2017XTTD11)
‘Taishan Scholar’ Construction Project (TS201712023)
Text and Data Mining valid from 2018-09-24
Article History
Received: 7 August 2018
Accepted: 18 September 2018
First Online: 24 September 2018
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.