1. Remote Sensing and Modeling Lab. USDA‐ARS Beltsville MD 20705 USA
2. Duke Univ. Phytotron and USDA‐ARS Remote Sensing Modeling Lab. Bldg. 007, Room 008, BARC‐West Beltsville MD 20705 USA
3. Dep. of Horticulture Univ. of Maryland at College Park College Park MD 20742 USA
4. Dep. of Soil and Plant Sciences Mississippi State Univ. Mississippi State MS 39762 USA