Skip to Main Content
Development of epicormic sprouts in Sitka spruce following thinning and pruning in south-east Alaska.Author(s): Robert L. Deal; R. James Barbour; Michael H. McClellan; Dean L. Parry
Source: Forestry. 76(4): 401-412
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (706 KB)
DescriptionThe frequency and size of epicormic sprouts in Sitka spruce (Picea sitchensis (Bong.) Carr.) were assessed in five 23-29 year-old mixed Sitka spruce-western hemlock (Tsuga heterophylla (Raf.) Sarg.) stands that were uniformly thinned and pruned to 2.4, 3.7 and 5.2 m lift heights. Six to nine years after treatment sprouts were very common with 232 of 236 trees producing sprouts and an average of 9-11 sprouts m-1 of tree bole. The total numbers of sprouts were similar for the different pruning treatments but significantly more large sprouts (P = 0.025) were produced in the 5.2 m pruning lift. Trees that developed large sprouts were significantly smaller, shorter and had less crown length at the time of pruning than trees without large sprouts. Our results suggest that spruce responds to thinning and pruning treatments with the production of numerous epicormic sprouts. If one of the main goals of pruning is to produce clear, higher valued wood, Sitka spruce may be a poor candidate species for pruning.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationDeal, Robert L.; Barbour, R. James; McClellan, Michael H.; Parry, Dean L. 2003. Development of epicormic sprouts in Sitka spruce following thinning and pruning in south-east Alaska. Forestry. 76(4): 401-412
- Sitka spruce and western hemlock beach logs in southeast Alaska: suitability for lumber, pulp, and energy.
- Partial cutting of western hemlock and sitka spruce in southeast Alaska.
- Growth and yield of sitka spruce and western hemlock at Cascade Head Experimental Forest, Oregon.
XML: View XML