Abstract
Summary Bark samples of Acacia mearnsii trees from 18 provenances in Australia were analysed by the hide-powder method, and the total solids, insolubles, soluble solids and non-tannin contents of the barks were determined so that the tannin contents of the barks could be calculated. Mean values of total solids, soluble solids and tannin contents for the barks obtained from the Tasmanian and Victorian provenances differed significantly from those of the South Australian and New South Wales provenances. The mean values of tannin contents in the barks from provenances in Tasmania, Victoria, South Australia and New South Wales were 46.9, 46.6, 39.4 and 38.8%, respectively. Statistical analysis revealed that there was no significant relationship between the results from the hide-powder and the Stiasny methods.
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