Skip to Main Content
Altitudinal variation in growth, bud break and susceptibility to balsam twig aphid damage of balsam fir from 6 Vermont seed sourcesAuthor(s): Ronald C. Wilkinson; Paul G. Schaberg
Source: In: Proceedings of the 1st northern forest genetics conference; 1991 July 23-25; Burlington, VT. The University of Vermont: 171-180.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (2.64 MB)
DescriptionDifferences in 10-year heights, 4-year growth from 1987 through 1990, relative timing of budbreak and damage by the balsam twig aphid (Mindarus abietinus Koch.) among balsam fir (Abies balsamea (L.) Mill.) from 6 Vermont seed sources originating from different elevations were examined. Height differences among seed sources were highly significant and trees from high elevation seed sources tended to be the shortest. Differences in 4-year growth among seed sources were also highly significant and followed the same trend as total height. Although differences in the amount of twig aphid damage (1990) among seed sources were highly significant, there was no consistent pattern of damage associated with elevation of origin. Trees from the 872 m seed source on Mount Mansfield had considerably more aphid damage than trees from any other seed source including those from 1173 m on the same mountain. Differences in budbreak (1991) among seed sources were highly significant. Seed sources were segregated into 3 groups . Low elevation seed sources had the earliest average budbreak, high elevation sources had the latest average budbreak and mid elevation sources were intermediate. The correlation between seed source means in percent aphid damage (1990) and relative budbreak (1991) was significant, but the biological interpretation of this statistic is complicated by the fact that measurements of these variables were made in different years. Although differences in the relative timing of budbreak between seed sources may partially contribute to differences in aphid damage, data from the two highest elevation seed sources suggests that factors other than budbreak timing alone can greatly affect seed source susceptibility to damage.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- 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.
CitationWilkinson, Ronald C.; Schaberg, Paul G. 1992. Altitudinal variation in growth, bud break and susceptibility to balsam twig aphid damage of balsam fir from 6 Vermont seed sources. In: Proceedings of the 1st northern forest genetics conference; 1991 July 23-25; Burlington, VT. The University of Vermont: 171-180.
- Genetic variation and population structure in fraser fir (Abies fraseri): a microsatellite assessment of young trees
- Genetic variation and population structure in Fraser fir (Abies fraseri): a microsatellite assessment of young trees
- Isolation and characterization of microsatellite markers in Fraser fir (Abies fraseri)
XML: View XML