Nielsen, Ulrik Braüner https://orcid.org/0000-0001-7198-1924
Xu, Jing https://orcid.org/0000-0003-4238-1449
Hansen, Ole Kim https://orcid.org/0000-0001-6646-1262
Funding for this research was provided by:
The work has partially been financed by The Christmas Tree Growers Production Fee Foundation (2003-0007)
Article History
Received: 11 March 2020
Revised: 29 July 2020
Accepted: 31 July 2020
First Online: 13 August 2020