Caractérisation de la croissance et de la qualité du liège dans une région de production

TitleCaractérisation de la croissance et de la qualité du liège dans une région de production
Publication TypeJournal Article
Year of Publication2000
AuthorsFerreira, A., Lopes F., & Pereira H.
JournalAnn. For. Sci.
Volume57
Issue2
Pagination187 - 193
Date Published2000///
KeywordsCork, Growth, Porosity, Quality, variability
Abstract

Cork growth and quality were characterised in 5 cork oak stands within the production area of the Sado basin (Alcácer do Sal, Portugal) based on a field sampling on 40 trees/stand. Cork thickness was on average 33.8 mm, with 75% of the samples in the commercial classes above 27 mm suitable for production of stoppers. Porosity measured by image analysis was 4.6% on average. Between tree and between stand variability of cork quality was large. The annual average cork growth for a production cycle with 8 complete growth years was 4.1 mm, being highest during the years following cork extraction and decreasing during the cycle. For this region, a production cycle of 9 years is adequate for raw-material industrial requirements. The results show the importance of between tree variability in growth and especially in quality.

URLhttp://dx.doi.org/10.1051/forest:2000169