Ac. Macdonald et al., GENETIC-VARIATION FOR GROWTH AND WOOD DENSITY IN EUCALYPTUS-GLOBULUS SSP. GLOBULUS IN TASMANIA (AUSTRALIA), Silvae Genetica, 46(4), 1997, pp. 236-241
Genetic parameters for diameter and Pilodyn penetration were estimated
for a 5 year-old Eucalyptus globulus ssp. globulus base population es
tablished across 5 sites in Tasmania (Australia). The model included r
ace, family plot, incomplete block and family-by-site interaction as r
andom and replicate as fixed effects. Race effects were generally low
for diameter and moderate for Pilodyn, with heritabilities across the
5 sites of h(2) = 0.20 and 0.30 respectively. For each trait, correlat
ions between trials were generally high, suggesting that a combined an
alysis across sites should be appropriate. The genetic correlation bet
ween Pilodyn penetration and diameter was moderately unfavourable (ave
raged 0.25) whereas race correlations were low but favourable (-0.19).