[1] Institute for Vegetable and Ornamental Crops,
[2] Department of Plant Propagation,undefined
[3] Kühnhäuser Straße 101,undefined
[4] D-99189 Kühnhausen,undefined
[5] Germany Fax no.: +49-36201-785250 E-mail: igz–eV–erfurt@t-online.de,undefined
[6] Laboratoire Androgenese et Biotechnologie,undefined
[7] Université de Picardie,undefined
[8] Faculté des Sciences,undefined
[9] 33 Rue Saint-Leu,undefined
[10] F-80039 Amiens,undefined
[11] France,undefined