翻訳と辞書 Words near each other ・ Ulmus parvifolia 'Emerald Prairie' ・ Ulmus parvifolia 'Frosty' ・ Ulmus crassifolia ・ Ulmus crassifolia 'Brazos Rim' ・ Ulmus davidiana ・ Ulmus davidiana var. davidiana ・ Ulmus davidiana var. japonica ・ Ulmus davidiana var. japonica 'Discovery' ・ Ulmus davidiana var. japonica 'Freedom' ・ Ulmus davidiana var. japonica 'Jacan' ・ Ulmus davidiana var. japonica 'JFS-Bieberich' = Emerald Sunshine ・ Ulmus davidiana var. japonica 'Mitsui Centennial' ・ Ulmus davidiana var. japonica 'Prospector' ・ Ulmus davidiana var. japonica 'Reperta' ・ Ulmus davidiana var. japonica 'Reseda' ・ Ulmus davidiana var. japonica 'Thomson' ・ Ulmus davidiana var. japonica 'Validation' ・ Ulmus davidiana var. japonica × U. minor ・ Ulmus elongata ・ Ulmus gaussenii ・ Ulmus glabra ・ Ulmus glabra 'Albo-Variegata' ・ Ulmus glabra 'Cebennensis' ・ Ulmus glabra 'Cornuta' ・ Ulmus glabra 'Corylifolia Purpurea' ・ Ulmus glabra 'Corylifolia' ・ Ulmus glabra 'Crispa Aurea' ・ Ulmus glabra 'Crispa' ・ Ulmus glabra 'Dovaei' ・ Ulmus glabra 'Escaillard' Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ulmus davidiana var. japonica 'Thomson' ： ウィキペディア英語版 Ulmus davidiana var. japonica 'Thomson' ''Ulmus davidiana'' var. ''japonica'' 'Thomson' is a hardy, cold-resistant cultivar of the Japanese Elm assessed by the Prairie Farm Rehabilitation Administration (PFRA) Nursery (now the AAFC-PFRA&E Shelterbelt Centre) at Indian Head, Saskatchewan, in the 1970s as part of its shelterbelt tree research.〔Lindquist, C. H. & Howe, J. A. G. (1979). Thomson Elm. ''Canadian Journal of Plant Science'' 59:1159〕〔Schroeder, W. (1994). Genetic improvement for prairie tree plantings. ''Journal of Arboriculture''. 20(1), Jan. 1994.〕 () ().〔Burdekin, D. A. & Rushforth, K. D. (Revised by Webber J. F. 1996). Elms resistant to Dutch elm disease. ''Arboricultural Research Note ''2/96. Arboricultural Advisory and Information Service, Alice Holt, Farnham, UK.〕 The tree was one of a number of Japanese Elms planted in an experimental shelterbelt at Indian Head in 1953. These shelterbelt trees were derived from seed taken from two openly-pollinated Japanese Elms obtained from Manchuria and planted at Indian Head in 1929. 'Thomson' attained a height of 8 m in 25 years, a rather modest performance compared with Siberian Elm ''Ulmus pumila'' and American Elm ''Ulmus americana'' grown at the same site. Nevertheless, the tree has proved exceptionally hardy. ==Description== 'Thomson' is distinguished by a single trunk bearing a vase-shaped crown, the branches forming strong wide-angled crotches; the bark is dark grey and deeply fissured. The twigs have diamond-shaped fissures that become more apparent on second-year wood, and occasionally sport corky wings. The leaves are borne on 1 cm petioles, and average 7.5 cm in length, obovate to elliptic, with the typical acuminate apex and oblique base; dark green and glabrous, they turn bright yellow in autumn. The samarae are obovate and deeply notched at the apex. The species does not sucker from roots. 〔Heybroek, H. M. (1981). The Japanese elm species and their value for the Dutch elm breeding program. ''Proceedings of the Dutch Elm Disease symposium and workshop''. October 5–9, 1981, Winnipeg, Manitoba. 78–90〕 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「Ulmus davidiana var. japonica 'Thomson'」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.