{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T18:39:21Z","timestamp":1770143961857,"version":"3.49.0"},"reference-count":38,"publisher":"Canadian Science Publishing","issue":"10","license":[{"start":{"date-parts":[[2006,10,1]],"date-time":"2006-10-01T00:00:00Z","timestamp":1159660800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. For. Res."],"published-print":{"date-parts":[[2006,10,1]]},"abstract":"<jats:p> The quality of wood from 18-year-old Tasmanian bluegum (Eucalyptus globulus Labill.) trees was assessed in relation to heartwood content, accumulation of extractives, and pulp yield using two growth conditions: control (C) and growth optimized by irrigation and fertilization in the first 6 years of growth (IL). Within the tree, heartwood content decreased from the base upwards, representing, on average, 77.7% and 67.6% at the base and 7.0% and 4.8% at 29.3\u2002m height for IL and C trees, respectively. Heartwood volume represented 65.6% and 55.6% of total tree volume for IL and C trees, respectively. Heartwood content was positively correlated with tree growth, while sapwood content remained rather constant, with a radial width of approximately 2\u2002cm. Heartwood contained more extractives than sapwood (5.3% vs. 4.0%) and pulp yield was lower from heartwood than from sapwood (58.0% vs. 56.0%). Pulp yield was negatively correlated with content of extractives. No difference in extractives or pulp yield was found between IL and C trees. The presence of heartwood decreases the quality of raw material for pulping and should be regarded as a stem-quality variable in eucalypt forestry. <\/jats:p>","DOI":"10.1139\/x06-130","type":"journal-article","created":{"date-parts":[[2006,11,9]],"date-time":"2006-11-09T16:30:15Z","timestamp":1163089815000},"page":"2675-2683","source":"Crossref","is-referenced-by-count":28,"title":["The influence of irrigation and fertilization on heartwood and sapwood contents in 18-year-old <i>Eucalyptus globulus<\/i> trees"],"prefix":"10.1139","volume":"36","author":[{"given":"Isabel","family":"Miranda","sequence":"first","affiliation":[]},{"given":"Jorge","family":"Gominho","sequence":"additional","affiliation":[]},{"given":"Ana","family":"Louren\u00e7o","sequence":"additional","affiliation":[]},{"given":"Helena","family":"Pereira","sequence":"additional","affiliation":[]}],"member":"155","reference":[{"key":"p_1\/p_1_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1021\/es60112a900","volume":"10","author":"Bamber R.K.","year":"1976","journal-title":"Technol."},{"key":"p_2\/p_2_1","first-page":"567","volume":"46","author":"Bamber R.K.","year":"1985","journal-title":"For. 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