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Friedrich Carl Louis Otto Appel (19 May 1867, Coburg – 10 November 1952, Berlin-Zehlendorf) was a German botanist and agriculturalist. Following work as an assistant at the Universities of Würzburg and Königsberg, he joined the newly established biological division of agriculture and forestry at the Imperial Health Office in Berlin (1899), from which the ''Biologische Bundesanstalt für Land- und Forstwirtschaft'' (Biological Reich Institute for Agriculture and Forestry) in Berlin-Dahlem later emerged. Here he served as its director from 1920 to 1933.〔(Deutsche Biographie )〕 Appel was a leading authority on potato diseases. In Germany he developed a successful seed potato inspection program.〔(Potato Certification in the United States - Potatoes New Brunswick )〕〔(Google Books ) Principles of Plant Health and Quarantine by David L. Ebbels〕 == Selected writings == * ''Die Pflanzkartoffel'', 1918 - The seed potato. * ''Taschenatlas der kartoffelkrankheiten'', 1925–26 - Pocket atlas of potato diseases. * "The diseases of sugar beet", 1927 (English ed. edited by R.N. Dowling). * ''Taschenatlas der Krankheiten des Beeren- und Schalenobstes'', 1929.〔(WorldCat Titles ) (publications)〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Otto Appel」の詳細全文を読む スポンサード リンク
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