1. USDA-ARS, Appalachian Fruit Research Station, 2217 Wiltshire Road, Kearneysville, West Virginia, USA; E-mail: (L. J. N.), caitlin.barnes@usda.gov (C. B.), anthony.rugh@usda.gov (A. R.), chris.hott@usda.gov (C. H.), lee.carper@usda.gov (L. C.), john.