Funding for this research was provided by:
Teagasc (Ref: 2015003)
National Council for Forest Research and Development (Grant aid ref: ROG1230)
Article History
Received: 15 August 2018
Accepted: 3 December 2018
First Online: 7 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
Free to read: This content has been made available to all.