EVALUATION OF GROWTH STRESS IN Eucalyptus CLONES

ABSTRACT

The objectives this research were: a) to evaluate the magnitude of the strain of longitudinal traction in trees of eleven clones of Eucalyptus; b) to verify the existent variability between clones and; c) to verify the variation in two longitudinal positions (1.3 and to 3 m of height). The results showed that the clone effect was highly significant, while the effects of longitudinal position and the interaction (clone x longitudinal position) was not significant. The average tension was of 288 kgf/cm², varying from 279 and 296 kgf/cm² to 1.30 and 3 meters of height, respectively. The variation of the strain among the clones was from 139 to 448 kgf/cm².

Key words
Growth stress; Eucalyptus, clones