Funding for this research was provided by:
Office of Energy Efficiency and Renewable Energy (DE-EE0003647)
Maine Agricultural and Forest Experiment Station (ME0-H-2-00483-11)
Article History
Received: 13 September 2017
Accepted: 5 July 2018
First Online: 11 July 2018
Compliance with ethical standards
: All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted (University of Maine IACUC A2010-03-01, A2013-03-01).
: The authors declare that they have no conflict of interest.