Development of blue stain in mechanically harvested Scots pine (Pinus sylvestris) logs during storage

Grzegorz Szewczyk , Robert Jankowiak , Bartosz Mitka , Piotr Bożek , Piotr Bilański , Dariusz Kulak , Anna Barycza , Grzegorz Kunys

Abstract

Blue stain is a type of discoloration that considerably lowers the aesthetic qualities of wood. During harvesting, fungal inoculum finds its way into the wood through places of cutting, delimbing, and damage to the tree stem. The development of peripheral blue stain in the logs of Scots pine (Pinus sylvestris L.) due to damage by a harvester head was investigated, using logs felled and delimbed with a chainsaw as reference. The development of blue stain was related to the age class of the stand, the date of felling, and the microclimatic conditions of the wood storage place. The mean surface area of blue stain in logs produced with the harvester was almost 35 cm2, approximately 30% larger than that of the reference logs. In stands of the fourth age class (diameter at breast height 32 cm), the surface of blue stain was more than two times larger than that of stands of the third age class (diameter at breast height 24 cm). The mean area of blue stain in wood stored after spring felling (19.3 cm2) was about 50% of that after summer felling (38.2 cm2). In particular, the development of blue stain in logs obtained with a harvester was visible between weeks 6 and 9 after spring felling and between weeks 3 and 6 after summer felling. For both felling dates, the range of blue stain depended less on air temperature around the wood stack and depended more on the duration of storage.
Author Grzegorz Szewczyk (FoF / IoFUaFT / DoFaWUse)
Grzegorz Szewczyk,,
- DEPARTMENT OF FOREST AND WOOD USE
, Robert Jankowiak (FoF / FEPI / DoFFMaPoT)
Robert Jankowiak,,
- DEPARTMENT OF FOREST FITOPATOLOGY, MYKOLOGY AND PHYSIOLOGY OF TREES
, Bartosz Mitka (FoEEaLS / DoAGCaP)
Bartosz Mitka,,
- Department of Agricultural Geodesy, Cadastre and Photogrammetry
, Piotr Bożek (FoEEaLS / DoAGCaP)
Piotr Bożek,,
- Department of Agricultural Geodesy, Cadastre and Photogrammetry
, Piotr Bilański (FoF / FEPI / DoFPEaC)
Piotr Bilański,,
- DEPARTMENT OF FOREST PROTECTION, ENTOMOLOGY AND FOREST CLIMATOLOGY
, Dariusz Kulak (FoF / IoFUaFT / DoFaWUse)
Dariusz Kulak,,
- DEPARTMENT OF FOREST AND WOOD USE
, Anna Barycza
Anna Barycza,,
-
, Grzegorz Kunys (UAK)
Grzegorz Kunys,,
- University of Agriculture in Krakow
Journal seriesCanadian Journal of Forest Research, ISSN 0045-5067, e-ISSN 1208-6037, (N/A 100 pkt)
Issue year2020
Vol50
Pages42-50
Publication size in sheets0.5
Keywords in Englishtimber harvesting, harvester, pine wood, wood storage, discoloration in wood
ASJC Classification1107 Forestry; 2303 Ecology; 2306 Global and Planetary Change
DOIDOI:10.1139/cjfr-2019-0112
URL https://www.nrcresearchpress.com/doi/pdf/10.1139/cjfr-2019-0112
Languageen angielski
Score (nominal)100
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.965; WoS Impact Factor: 2018 = 1.703 (2) - 2018=2.635 (5)
Citation count*
Additional fields
FinansowanieThis research was financed by the Ministry of Science and Higher Education of the Republic of Poland.
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