General paper

Impact of Wood Quality Assessments on Future Fibre Resources in the Pulp and Paper-making Industry

Published in: South African Forestry Journal
Volume 157, issue 1, 1991 , pages: 96–99
DOI: 10.1080/00382167.1991.9629106
Author(s): J.A. WrightSappi Forests, Research Division, RSA


Recent evidence from research in Europe has indicated that individual trees can be sampled for their pulping properties by the removal of small quantities (5–50 g) of wood at about breast height (1,3 m above ground). Work began at Sappi's Enstra Research and Development Centre in 1985 to develop techniques for local conditions. Since that time, individual trees of pines and eucalypts numbering 400 and 900, have been sampled for pulping. Large differences between and within families have been observed for pulp yield, kappa number, as well as the indices of tear and burst. More recently, heritabilities for these traits in Eucalyptus grandis Hill ex Maiden have indicated a strong degree of genetic control suggesting that selection and breeding for these traits will be successful.

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