info:oai:orgprints.org:7902info:ofi/fmt:xml:xsd:bookGrootS.P.C.Groot, S.P.C.JalinkH.Jalink, H.KöhlJ.Köhl, J.LangerakC.J.Langerak, C.J.MichtaA.Michta, A.WernerS.Werner, S.van der WolfJ.M.van der Wolf, J.M.van den BulkR.W.van den Bulk, R.W.2006The need for a supply of high quality organic vegetable seedsproceeding