Funding for this research was provided by:
The research and development workstation of Yunnan provincial experts (Grant No. Yunrenshefa (2017) No. 38)
Yun-ling industrial technology leading talent (Grant No. 2014-1782)
the 12th student science and technology innovation and entrepreneurship action fund of Yunnan Agricultural University (Grant No. 2019ZKX097)
Article History
Revised: 29 April 2020
Accepted: 12 June 2020
First Online: 20 June 2020
Compliance with ethical standards
:
: The authors declare they have no Conflict of interest.