1. Institute for Agricultural and Fisheries Research, Unit Plant, Research Domain Genetics and Breeding, Caritasstraat 21, 9090 Melle, Belgium; Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, Coupure 533, 9000 Ghent, Belgium; Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium; Cambie v.o.f., Elverdingeweg 16, 8970 Poperinge, Belgium; and Provincial Research and Advisory Centre for...