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Windthrow resistance of apple trees grafted in an orchard

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タイトル: Windthrow resistance of apple trees grafted in an orchard
著者: Koizumi, Akio 著作を一覧する
Araki, Hajime 著作を一覧する
Hori, Hirotaka 著作を一覧する
Inagawa, Yutaka 著作を一覧する
キーワード: windthrow resistance
critical wind velocity
uprooting strength
apple trees
pull-down test
発行日: 2008年 1月
出版者: Springer
誌名: Journal of Wood Science
巻: 54
号: 1
開始ページ: 10
終了ページ: 15
出版社 DOI: 10.1007/s10086-007-0907-7
抄録: Pull-down tests were conducted for apple trees grafted in an orchard and for support posts in order to discuss the failure mode in windthrow damage, the effect of rootstock types on the uprooting strength, and the reinforcing effect of support posts on young trees. The test samples were 10 mature trees (20–23 years old) of 3 varieties grafted on two types of rootstocks, 3 young trees (7 years old) grafted on dwarf rootstocks, and 9 support posts of larch logs and steel pipes. The failure modes were found to be uprooting for mature trees and rootstock breakage for young trees. The uprooting strength of apple trees was considerably smaller than the uprooting strength of forest trees reported in previous studies. However, the windthrow resistance of the apple trees with respect to the critical wind velocity was estimated to be sufficient despite their low uprooting strength because of their small height. Young trees should be supported with wooden posts for a few years after grafting so that they acquire sufficient windthrow resistance.
Rights: The original publication is available at www.springerlink.com
Relation (URI): http://www.springerlink.com
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/32604
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 小泉 章夫

 

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