Journal Title
Title of Journal: New Forests
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Publisher
Springer Netherlands
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Authors: Jessica Snedden Simon M Landhäusser Victor J Lieffers Lee R Charleson
Publish Date: 2009/07/26
Volume: 39, Issue: 2, Pages: 169-182
Abstract
Two experiments were conducted to examine the effects of growing conditions duration of cold storage and distinct phenological periods of root donor plants on the propagation success of aspen rootlings Root donor plants were produced either under greenhouse or open grown conditions Root cuttings were periodically collected from donor plants that had been stored for various lengths of time in cold storage up to 180 days or that were stored dormant in cold storage up to 150 days and then grown for another full growing season Longer storage of donor plants produced only slightly smaller rootlings and resulted in slightly lower establishment success Rootling establishment success was severely depressed down to 18 establishment success when cuttings were collected during the active growth period of donor plants Carbohydrate reserves did not influence rootling establishment success but did affect root and shoot growth performance It appears that other factors such as hormone levels may be more important in rootling establishment successWe thank Jill Fraser Jennifer Langhorst Geoffrey Kershaw Mike Wagner Tomasz Gradowski Kevin Renkema Chris Williams and Dominique Deshaies for their help with this study Pak Chow for TNC analyses Jeff Hoyem Woodmere Nursery for donor planting stock production and Larry Lafleur Smoky Lake Nurseries for providing cold storage facilities Financial support is gratefully acknowledged from Western Boreal Aspen Corporation Woodmere Forest Nursery and Forest Resource Improvement Association of Alberta FRIAA
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