|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >
Windthrow resistance of apple trees grafted in an orchard
| Title: | Windthrow resistance of apple trees grafted in an orchard |
| Authors: | Koizumi, Akio Browse this author →KAKEN DB | | Araki, Hajime Browse this author →KAKEN DB | | Hori, Hirotaka Browse this author | | Inagawa, Yutaka Browse this author |
| Keywords: | windthrow resistance | | critical wind velocity | | uprooting strength | | apple trees | | pull-down test |
| Issue Date: | Jan-2008 |
| Publisher: | Springer |
| Journal Title: | Journal of Wood Science |
| Volume: | 54 |
| Issue: | 1 |
| Start Page: | 10 |
| End Page: | 15 |
| Publisher DOI: | 10.1007/s10086-007-0907-7 |
| Abstract: | 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: | http://www.springerlink.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/32604 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 小泉 章夫
|
