The Geilweilerhof Institute for Vine Breeding in Siebeldingen (Palatinate-Germany) emerged from two institutions that were founded independently of one another in the 1920s. In 1924 August Ludowici (1866-1945), the last private owner of the Geilweilerhof, gave the Palatinate Winegrowers Association Rebland free of charge. The Agriculture Council Peter Morio (1887-1960) founded the branch “Vine Breeding” of the Bavarian State Institute for Wine, Fruit and Horticulture in Würzburg two years later on this property. In the same year in Müncheberg (Mark Brandenburg ) by Dr. Erwin Baur (1875-1933) the Kaiser Wilhems Institute for Plant Breeding Research was founded. Bernhard Husfeld (1900-1970) transferred. Both Morio and Husfeld subsequently dealt intensively with the breeding of phylloxera and both Mildew species resistant grape varieties. After the Second World War, Husfeld moved his breeding material to the Geilweilerhof. The company he founded leased the farm and founded the "Research Institute for Vine Breeding". Husfeld headed the institute until 1970, after which his long-time assistant Dr. Gerhardt Alleweldt (1927-2005) the management.
Alleweldt headed the Geilweilerhof branch until 1995, and was succeeded by Professor Dr. Reinhard Töpfer. Since 1996 special efforts have been made to take stock, identify, describe and evaluate the old ones landraces of the German-speaking area. In the institute's own herbarium, rare and almost extinct varieties are reactivated and thus 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 level of 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 them have been very successful at the institute 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 structure of responsibility and ownership, the foundation of the Julius Kühn Institute (JKI), which also includes the Geilweilerhof Institute for Vine Breeding.