Affiliation: | (1) Research Station for Arable Farming and Field Production of Vegetables, (PAGV), P.O. Box 430, 8200 AK Lelystad, The Netherlands;(2) Centre for Agrobiological Research (CABO), P.O. Box 14, 6700 AA Wageningen, The Netherlands;(3) Department of Crop Science, University of Guelph, N1G 2W1, Ontario, Canada |