Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta
From 1990 to 1995, the formation and growth of stem cankers caused by Gremmeniella abietina on Pinus contorta var. latifolia was studied in three stands in northern Sweden. The stands were planted in 1976–80. The total number of cankers on 756 trees that were individually followed increased from 233...
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crwiley:10.1046/j.1439-0329.2001.00231.x 2024-06-02T08:12:10+00:00 Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta Witzell 2001 http://dx.doi.org/10.1046/j.1439-0329.2001.00231.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1439-0329.2001.00231.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1439-0329.2001.00231.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Forest Pathology volume 31, issue 2, page 115-127 ISSN 1437-4781 1439-0329 journal-article 2001 crwiley https://doi.org/10.1046/j.1439-0329.2001.00231.x 2024-05-03T10:49:40Z From 1990 to 1995, the formation and growth of stem cankers caused by Gremmeniella abietina on Pinus contorta var. latifolia was studied in three stands in northern Sweden. The stands were planted in 1976–80. The total number of cankers on 756 trees that were individually followed increased from 233 to 477 during the 5‐year period. With 42.0% of the cankers, the pathogen entered through or from the base of diseased branches, and 33.6% through visually undamaged bark. Most of the cankers were within 100 cm of the ground. In one of the three areas, the cankers were evenly distributed within 180 cm of the ground. The frequency of cankers facing north exceeded those facing south. The average vertical length of cankers had increased, 55.6% of cankers had increased their percentage coverage of the stem girth; 13.8% had fully girdled the stem. At two of the sites, there was a negative correlation between canker coverage of the stem circumference and tree height increment. Article in Journal/Newspaper Northern Sweden Wiley Online Library Forest Pathology 31 2 115 127 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
From 1990 to 1995, the formation and growth of stem cankers caused by Gremmeniella abietina on Pinus contorta var. latifolia was studied in three stands in northern Sweden. The stands were planted in 1976–80. The total number of cankers on 756 trees that were individually followed increased from 233 to 477 during the 5‐year period. With 42.0% of the cankers, the pathogen entered through or from the base of diseased branches, and 33.6% through visually undamaged bark. Most of the cankers were within 100 cm of the ground. In one of the three areas, the cankers were evenly distributed within 180 cm of the ground. The frequency of cankers facing north exceeded those facing south. The average vertical length of cankers had increased, 55.6% of cankers had increased their percentage coverage of the stem girth; 13.8% had fully girdled the stem. At two of the sites, there was a negative correlation between canker coverage of the stem circumference and tree height increment. |
format |
Article in Journal/Newspaper |
author |
Witzell |
spellingShingle |
Witzell Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta |
author_facet |
Witzell |
author_sort |
Witzell |
title |
Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta |
title_short |
Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta |
title_full |
Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta |
title_fullStr |
Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta |
title_full_unstemmed |
Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta |
title_sort |
formation and growth of stem cankers caused by gremmeniella abietina on young pinus contorta |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1046/j.1439-0329.2001.00231.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1439-0329.2001.00231.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1439-0329.2001.00231.x |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Forest Pathology volume 31, issue 2, page 115-127 ISSN 1437-4781 1439-0329 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1439-0329.2001.00231.x |
container_title |
Forest Pathology |
container_volume |
31 |
container_issue |
2 |
container_start_page |
115 |
op_container_end_page |
127 |
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1800758527968411648 |