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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 National Elm Trial ： ウィキペディア英語版 National Elm Trial The National Elm Trial is an American volunteer effort to evaluate a range of newly developed elm cultivars as replacements for elms destroyed by Dutch elm disease (DED). It is coordinated by Colorado State University. The trial began in 2005, but has been restricted to elm cultivars commercially available in the USA, unlike the trial conducted by Iowa State University in the 1970s which included the most recent European developments. The trial will be conducted for 10 years, with annual assessments of each tree for height, diameter, crown characteristics, and fall color, as well as response to vascular diseases, canker diseases, foliar diseases, insect infestations, bark beetle infestations, and abiotic damages. Stated goals of the trial are as follows: * Determine the growth and horticultural performance of commercially available DED-resistant elm cultivars in various climate regimes in the United States. * Determine the relative disease, insect, and abiotic stress tolerance of these cultivars. * Promote the propagation and use of elms through local, regional, and national reporting of the trial results to wholesale tree propagators and growers, retail nursery and garden center operators, landscaper designers, arborists, and the general public. As of January 2000, 19 distinct cultivars are being evaluated in regional trials taking place under the scientific supervision of Auburn University, University of California at Davis, Colorado State University, Purdue University, Iowa State University, Kansas State University, Michigan State University, University of Minnesota, Rutgers University, State University of New York, North Dakota State University, Ohio State University, Utah State University, University of Vermont, Washington State University, and West Virginia University. ==List of cultivars included in the trial== *American Elm ''Ulmus americana'' cvs: 'Jefferson', 'New Harmony', 'Princeton', 'Lewis & Clark' (Prairie Expedition). *Chinese Elm ''Ulmus parvifolia'' cvs: BSNUPF (Everclear), 'Emer I' (Athena), 'Emer II' (Allee). *Japanese Elm ''Ulmus davidiana'' var. ''japonica'' cvs: 'JFS - Bieberich' (Emerald Sunshine), 'Prospector'. *Hybrid elm cvs: 'Frontier', 'Homestead', 'Morton' (Accolade), 'Morton Glossy' (Triumph), 'Morton Plainsman' (Vanguard), 'Morton Red Tip' (Danada Charm), 'Morton Stalwart' (Commendation), 'New Horizon', 'Patriot', 'Pioneer'. 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「National Elm Trial」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.