Decay of spruce (Picea abies (L.) Karst.) in the Åland Islands

Kallio, Tauno; Tamminen, Pekka

doi:10.14214/aff.7572

Cited by 23 publications

(22 citation statements)

References 2 publications

(4 reference statements)

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“…A. sarcoides has fruiting bodies which are bordered with light violet to greybrown, whereas A. cylichnium has fruiting bodies which are generally reddish purple to violet-pink. A. cylichnium has generally smaller apothecia (6-30 mm), ascospores (18-30 × 4-6 µm), and asci (200-220 × 10-12 µm) 16,19,23,25 . Also, one of the most prominent characteristics of A. sarcoides is that asci and ascospores have one septum when they mature, the asci and ascospores of A. cylichnium have more than one septum 16,19,[23][24][25] .…”

Section: Discussionmentioning

confidence: 99%

“…A. cylichnium has generally smaller apothecia (6-30 mm), ascospores (18-30 × 4-6 µm), and asci (200-220 × 10-12 µm) 16,19,23,25 . Also, one of the most prominent characteristics of A. sarcoides is that asci and ascospores have one septum when they mature, the asci and ascospores of A. cylichnium have more than one septum 16,19,[23][24][25] . A. sarcoides is reported to have a wide distribution in forested areas of Europe (Finland, France, Britain, Iceland, Norway, Switzerland, and Germany), Australia, Asia (China), North America (Canada and Cuba), and South America (Chile) 16,19,24,25,31 .…”

Section: Discussionmentioning

confidence: 99%

“…Also, one of the most prominent characteristics of A. sarcoides is that asci and ascospores have one septum when they mature, the asci and ascospores of A. cylichnium have more than one septum 16,19,[23][24][25] . A. sarcoides is reported to have a wide distribution in forested areas of Europe (Finland, France, Britain, Iceland, Norway, Switzerland, and Germany), Australia, Asia (China), North America (Canada and Cuba), and South America (Chile) 16,19,24,25,31 . A. sarcoides forms colonies on the dead wood, fallen trunks, logs buried in the ground or pieces lying on the ground of deciduous trees, particularly Carpinus, Fagus, and Quercus 19,24 .…”

Section: Discussionmentioning

confidence: 99%

“…Identification of the taxa and descriptive terms for morphological and microscopic features were based on the current literature [15][16][17][18][19][20][21][22][23][24][25][26] . After viewing the samples using the latest studies of Helotiales in a checklist of Turkish mycota [9][10][11][12][13][14] , they were considered as being new records for the macromycota of Turkey.…”

Section: Methodsmentioning

confidence: 99%

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New records of Helotiales in Turkey

Kaygusuz¹,

Çolak²

2017

ScienceAsia

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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New records of Helotiales in Turkey

Kaygusuz¹,

Çolak²

2017

ScienceAsia

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“…No information is available regarding the effect of root disease on Douglas-fir stem taper or form, but these results suggest that disease might affect stem taper and the product conversion efficiency. One study of butt rot in spruce showed that diseased trees had more stem taper (Kallio and Tamminen 1974). Furthermore, we only compared between trees of the same diameter; therefore, reduced growth from disease resulting in smaller stem diameter and its impact on product quantity is not accounted for in this study.…”

Section: Résumémentioning

confidence: 99%

Effect of Armillaria root disease on quality and value of green Douglas-fir lumber

Cruickshank¹

2010

The Forestry Chronicle

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For a few tree species, scattered accounts of impact caused by root disease exist in the literature mainly at the tree level. No product quality impacts have ever been measured or properly costed. To provide some information on value impacts, green rough-sawn Douglas-fir lumber was cut from trees with and without Armillaria root disease. This produced 80 boards from six trees in two planted stands. Fewer boards came from living diseased trees compared to healthy trees of similar diameter (1.3 m) at both sites, suggesting that disease may affect stem taper or form. Lumber from diseased trees was affected most often by warp and for healthy trees by knots, but warp affected value the most. Disease appears to have at best no effect, and at worst, a negative effect on lumber value but is not likely to increase value. This is the first report of the impact of a root disease on lumber quality and value, but further work would be required to properly assess this.Key words: disease, Armillaria root disease, conifer, Douglas-fir, wood quality, lumber warping, lumber value, lumber grading 1 Natural Resources Canada, Canadian Forest Service, Canadian Wood Fibre Centre, 506 West Burnside Rd., Victoria, British Columbia V8Z 1M5. E-mail: mcruicks@nrcan.gc.ca of chronic infection on the quantity, quality, and value of timber products has rarely been considered. The objective of the study was to determine how a root disease may affect the endproduct quality of plantation-grown trees, using three different Canadian grading standards and a US pricing system that reflects where most of the lumber is sold. If non-lethal disease affects lumber quality through heterogeneous radial growth and increased distortion, then the disease impacts in hosts will perhaps be more complex than a simple volume reduction caused by reduced tree vigour.Armillaria ostoyae (Romagn.) Herink, the fungus mainly causing Armillaria root disease in Canada occurs widely in the northern hemisphere. Over 30 other species of this fungus extend the range of the genus to the global scale. Apart from causing mortality and affecting diameter and height growth (Cruickshank et al. 2009), little is known about the level of disease impact at the stand level in Canada despite the wide distribution and occurrence. The fungus also infects all tree species making it difficult to manage. More is known Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) is used mainly for structural purposes because the wood is moderately hard and very strong, but it is also used for interior and exterior finishing and pulp. Conversion into high quality forest products has been considered with respect to site index, stand density, fertilization, and pruning (Kellogg 1989). Other work showed that pests in young stands are not well recognized in silviculture surveys, and the silvicultural prescriptions often do not take into account the impact of pests, especially of diseases (Humphreys and Van Sickle 1992). Pests principally draw attention when they cause short-term mortalit...

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Simulating the extent of decay caused by Heterobasidion annosum s. l. in stems of Norway spruce

Seifert

2007

Forest Ecology and Management

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Decay of spruce (Picea abies (L.) Karst.) in the Åland Islands

Cited by 23 publications

References 2 publications

New records of Helotiales in Turkey

New records of Helotiales in Turkey

Effect of Armillaria root disease on quality and value of green Douglas-fir lumber

Simulating the extent of decay caused by Heterobasidion annosum s. l. in stems of Norway spruce

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