Funding for this research was provided by:
National Characteristic Vegetable Industry Technology System Project (CARS-24-A-09)
Shandong Province's dual-class discipline construction project (SYL2017YSTD06)
Agricultural fine variety project of Shandong Province of China (2016LZGC015)
Article History
Received: 22 August 2019
Accepted: 7 February 2020
First Online: 17 February 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no conflict of interest.