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VARIABILIDAD DE LOS PARAMETROS CARACTERÍSTICOS DEL CORCHO EN PLANCHA CON LA ALTURA DE EXTRACCIÓN

TitleVARIABILIDAD DE LOS PARAMETROS CARACTERÍSTICOS DEL CORCHO EN PLANCHA CON LA ALTURA DE EXTRACCIÓN
Publication TypeAudiovisual
Year of Publication2001
AuthorsGonzález, F., GONZÁLEZ J. R., DE CECA J. L. G. A. R. C. I. A., & GONZÁLEZ M.
Series TitleIII Congreso Forestal Español
CityGranada
KeywordsCharacteristic parameter, Cork, Quality
Abstract

135 cork sample planks have been gotten from 15 trees ready to uncork. Planks were taken from 5 different heights and 2 orientations. 12 variables have been measured and studied from them. The following variables show a decrease in their values with the extraction height: Yearly average growth in thickness and superficial density before and after boiling. Two groups based on the sampling average height of 130 cm can be made with the following variables: thickness expansion, visual quality and coefficient of porosity. With few exceptions, the quality index (QI) shows a bigger commercial value for the cork coming from the upper part of the debarking height