The Institute for grapevine breeding Geilweilerhof in Siebeldingen (Palatinate Germany) emerged from two institutions that were founded independently in the 1920s. In 1924, August Ludowici (1866-1945), the last private owner of the Geilweilerhof, left the Palatinate Viticulture Association free of charge. The Agriculture Council Peter Morio (1887-1960) established on this site two years later, the field office "vine breeding" of the Bavarian State Institute for Wine, Fruit and Horticulture in Würzburg. In the same year in Müncheberg (Mark Brandenburg) by Dr. med. Erwin Baur (1875-1933) founded the Kaiser-Wilhems-Institut für Züchtungsforschung; Bernhard Husfeld (1900-1970). Both Morio and Husfeld dealt intensively with the breeding of against phylloxera and both Mildew species resistant grape varieties. After the Second World War Husfeld shifted his breeding material to the Geilweilerhof. The company founded by him leased the farm and founded the "research institute for vine breeding". Husfeld was present at the institute until 1970, when his longtime assistant dr. Gerhardt Alleweldt (1927-2005) the line.
Alleweldt led the field office Geilweilerhof until the year 1995, his successor became Professor Dr. med. Reinhard Töpfer. Since 1996, special efforts have been made to inventory, identify, describe and evaluate the old ones landraces of the German-speaking area. In the institute's own herbarium, rare and already almost extinct varieties are reactivated and thereby secured. In the grape variety catalog VIVC (Vitis International Variety Catalog) with well over 20,000 entries, almost all grape varieties in the world are recorded with their synonyms. The institute has a high scientific competence for safe molecular genetics Identification of grape varieties. In this regard, the identification of the parents of Müller-Thurgau to call.
Many of the institutes have been very successful in recent decades new varieties created. Those were Bacchus. Calandro. Carmina. Castor. comtessa. Diana. Domina. Dr. Deckerrebe. Felicia. Forta. Gloria. Morio Muscat. Noblessa. Optima. Orion. Phoenix. Pollux. Sirius. Staufer. Reberger. regent and Villaris, After some changes in the ownership and ownership structure, it finally came to the founding of the Julius Kühn Institute (JKI), which also includes the Institute for vine breeding Geilweilerhof.