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Damage to Pinus contorta in northern Sweden with special emphasis on pathogens

Karlman, Margareta (1986). Damage to Pinus contorta in northern Sweden with special emphasis on pathogens. Technical Report. Uppsala: UNSPECIFIED, Sveriges lantbruksuniversitet. Studia forestalia Suecica ; 176

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During a nine-year-period ca. 100 provenances of Pinus contorta were investigated annually with respect to different kinds of damage. primarily by parasitic fungi. Damage to Pinus contorta occurred mainly during the first ten years after planting. northern provenances of Pinus contorta were generally more resistant to pathogens than southern provenances. Weather damage occurred almost every year among trees of southern and coastal provenance. Trees of northern provenance also suffered from weather damage due to temperature oscillations during shoot elongation. Severe weather damage predisposed to infection by secondary pathogens. primarily Gremmeniella abietina. Even northern provenances of Pinus contorta were infected by Phacidium infestans in high-altitude stands in northern Sweden. Snow blight infection was. however. of less importance to lodgepole pine than to Scots pine. owing to the rapid early growth of the former. The most productive plants of both Pinus contorta and Pinus sylvestris were attacked by Phacidium infestans. So far vole damage has been the most severe threat to Pinus contorta in northern Sweden. Severe infection by Gremrneniella abietina was recorded after vole attack. even among northern provenances of lodgepole pine. Hitherto Pinus contorta has mainly been infected by the same fungi as Pinus sylvestris, with the exception of Melampsora pinitorqua and Lophodermella sulcigena.

Authors/Creators:Karlman, Margareta
Title:Damage to Pinus contorta in northern Sweden with special emphasis on pathogens
Series Name/Journal:Studia forestalia Suecica
Year of publishing :1986
Number of Pages:42
Place of Publication:Uppsala
Publisher:Faculty of Forestry, Swedish University of Agricultural Sciences
ISBN for printed version:91-576-2824-6
Publication Type:Report
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Forestry
Keywords:Pinus contorta, Pinus sylvestris, provenance, weather damage, vole damage, parasitic fungi, Gremmeniella abietina, Phacidium infestans, Sweden
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ID Code:4636
Faculty:S - Faculty of Forest Sciences
Deposited By: Skogsbiblioteket Umeå
Deposited On:12 Apr 2010 00:00
Metadata Last Modified:14 Dec 2015 15:12

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