Authors
Sonia Steenkamp
Agricultural Research Council-Grain Crops Institute, Potchefstroom, South Africa
Dirk De Waele
Laboratory of Tropical Crop Improvement, Department of Biosystems, Faculty of Bioscience Engineering, University of Leuven (KU Leuven), Heverlee, Belgium
Unit of Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
Alexander McDonald
Unit of Environmental Sciences and Management, North-West University, Potchefstroom, South Africa