Assessment ofwood density of seven clones ofEucalyptus grandis

Abstract

With the objective of evaluating the correlation of wood basic density with age in seven Eucalyptus grandis clones planted in Brazil, five trees in each clone were sampled at the ages of 0, 5, 1, 5, 2, 5, 3, 5, 4, 5 and 7, 5 years. The analysis of these samples showed that the intraclonal variation of the basic density (except for 0, 5 year-old) was very low, while the interclonal variation was moderately high (from 7, 5 % at 0, 5 year-old to 4, 1 % at 7, 5 year old) for all ages. The analysis of variance indicated that the variation between clones, between ages and the clone ( age interaction were all significant (P Southern African Forestry Journal No.191 2001: 21-28