The German agronomist and Rebenzüchtung Peter Morio (1887-1960) studied agriculture at the Technical University in Munich. From 1921 to 1948, he was an assessor at the teaching and research institute in Neustadt an der Weinstraße (Pfalz). In 1926, he founded the branch of grape breeding of the Bavarian State Institute for Wine, Fruit, and Horticulture in Würzburg at the Geilweilerhof in Siebeldingen-Pfalz and planted the first Sämling. In 1928, 8,000 Rebstock were already planted, establishing the extensive grape breeding of today’s institute. At the beginning of his work, his main focus was on Klon, such as the successful Riesling clone No. 90, as well as the Züchtung of PIWI varieties between Europäer-Reben and Amerikaner-Reben.
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