Kundred, 1961, USA
Saunders, 1941, USA
Anderson/Atkinson, 1999, USА
Bockstoce, 1955, USA
Blonk, Nederland, 1950
Krekler, 1962, USA
Klehm, 1970, USA
Freeborn, 1943, USA
Origin unknown
Dessert, 1920, France
Klehm, 1972, (Plant Patent 3644), USА
Anderson, 1986, USA
Klehm, 2007, USА
Hoogendoorn, 1949, USA
Krekler, 1975, USA
Murawska, 1947, USA
Klehm, 1995, USА
Wassenberg, 1954, USA
Mains, 1956, USA
Bigger, 1952, USA
Lins, 1942, USA
Klehm, patent 4249, 1959, USA
Nicholls -Wild, 1964, USA
Krekler, 1963, USA
Wild, 1967, USA
Auten, 1939, USA
Auten, 1945, USА
White – Wild,1954, USA
Hollingsworth, 1994, USА
Bigger,1957, USA
