[1] Penn State Univ, University Pk, PA 16802 USA
[2] Morgan State Univ, Baltimore, MD 21239 USA
[3] Penn State Univ, Biglerville, PA USA
[4] Penn State Fruit Res & Extens Ctr, Biglerville, PA USA
[5] Penn State Univ, Fruit Res & Extens Ctr, Biglerville, PA USA