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Duchess of Oldenburg is an old Russian cultivar (1750 - 1799) of cultivated apple which has very attractive streaks of yellow and red. Duchess originates in the Tula area of Russia, from where it spread to many countries under different names, like: ''Duchess, Duchesse, Duchesse d'Oldenburg, Oldenburg, Borowitsky, Brunswick, New Brunswick, Charlamowsky, Early Joe'' and ''Queen Mary''.〔 It was once so popular, that it was used as reference in evaluation of other apple cultivars.〔 As of today it is still widely cultivated in Europe and in USA and have many popular descending cultivars, such as alkmene, Northern Spy and Pinova.〔(Duchess of Oldenburg ) by Orange Pippin〕 Duchess has a generally good resistance to major apple diseases, good vigour, flowers early-mid season, blossoms are self-sterile, gives an early harvest and good crop of variable size of apples, which use for fresh eating as well as for cooking. Fruit melts by cooking, resulting in a good puree〔 which has an orange tint.〔(Hardy Fruit Trees )〕 This apple is easy to cultivate but fruits do not keep fresh too long.〔〔 ==See also== * Duchess of Oldenburg * Geheimrat Dr. Oldenburg 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「Duchess of Oldenburg (apple)」の詳細全文を読む スポンサード リンク
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