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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク List of sweet potato cultivars ： ウィキペディア英語版 List of sweet potato cultivars This list of sweet potato cultivars provides some information about varieties or cultivars of sweet potato (''Ipomoea batatas''). Sweet potato was first domesticated in the Americas more than 5,000 years ago. As of 2013, there are approximately 7,000 sweet potato cultivars. People grow sweet potato in many parts of the world, such as New Zealand, Australia, the Philippines, Japan, Hawaii, China, and North America. However, sweet potato is not widely cultivated in Europe. People breed sweet potatoes mainly either for food (their nutritious roots) or for their attractive flowering vines. (The cultivar 'Vardaman' is grown for both.) The first table below lists sweet potato cultivars grown for their edible roots; the second table lists cultivars bred as ornamental vines. In the first table, the Parentage column briefly explains how the sweet potato cultivar was bred. Sweet potato plants with desirable traits are selectively bred to produce new cultivars. Sweet potato cultivars differ in many ways. One way people compare them is by the size, shape, and color of the roots. The more orange the flesh of a sweet potato root is, the more nutritious carotene it has. (Humans metabolize carotene into vitamin A.) The skin of a sweet potato root is a different color than the flesh. The biological word for the outer skin is ''epidermis''; the flesh is also called the ''pith'' or ''medulla''. The first table below has a general description of the color of the root's flesh and skin. Many of the sweet potato cultivars below were bred at agricultural experiment stations. An agricultural experiment station (AES) is a research center where scientists work to increase the quality and quantity of food production. Agricultural experiment stations are usually operated by a government agency and/or a university. ==Cultivars bred for edible roots== 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「List of sweet potato cultivars」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.