Cucurbit Genetics Cooperative Report 3:55-59 (article 32) 1980 L. van Leeuwen and A.P.M. den Nijs Institute for Horticultural Plant Breeding, Wageningen, The Netherlands The Cucumis-working group at our Institute attempts to introduce resistances of several African species of Cucumis L. into the cultivated cucumber C. sativus L. We have, therefore, collected a large number of species from all over the […]