Results 181 to 190 of about 4,904 (226)
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Heritability of response to inoculation by pine pitch canker of seedlings of radiata pine
Australian Forestry, 2006Summary Seedlings grown from more than 500 radiata pine (Pinus radiata D.Don) seedlots from Australia, New Zealand and Chile were inoculated with Fusarium circinatum, the cause of pitch canker, and subsequently assessed for response by measuring the length of the resulting lesion.
A. C. Matheson +6 more
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Improving harvester estimates of bark thickness for radiata pine (Pinus radiataD.Don)
Southern Forests: a Journal of Forest Science, 2011Harvesters estimate bark thickness primarily from diameter over bark (DOB) and use it to estimate log volume and value. Harvester bark thickness estimation errors can reduce returns through poor bucking optimisation and out-of-specification logs. Radiata pine bark thickness data from harvested logs and permanent sample plots (PSP) were analysed to ...
Strandgard, M, Walsh, D
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Suspected copper deficiency in radiata pine
Plant and Soil, 1969Growth disorders in 3-year-old radiata pine associated with very low copper concentrations in the foliage are described. The low concentrations of copper appear to have been nitrogen induced. The effect of remedial measures is being investigated.
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Genetic gain trials of radiata pine
1991Forest tree improvement is when control of parentage is combined with other forest management activities, such as site preparation or fertilization, to improve the overall yields and quality of products from forests. Overall results of tree improvement have been so good that we no longer have difficulty in selling tree improvement.
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Variations in Chlorophyll Concentration in the Foliage of Radiata Pine
Australian Forestry, 1969SUMMARY The concentration of chlorophyll in radiata pine (Pinus radiata D.Don) needles varied considerably along their length. The variation was least over the central third of fully-developed needles. Maximum chlorophyll levels were found in two-year-old needles.
J. P. WOOD, E. P. BACHELARD
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Technical and Financial Maturity in Radiata Pine
Australian Forestry, 1968SUMMARY The optimum financial rotations for radiata pine were compared with the optimum technical rotations for saw-timber and pulpwood. Within the limits of the data, and the analytical one-rotation method, the optimum financial rotations were between twenty-five and thirty-five to forty for all sites, costs and prices, i.e. these optimum felling ages
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Determining prices for radiata pine clearwood
1984Due to the widespread practise of pruning radiata pine trees in New Zealand there will be a substantial amount of timber free of knots to sell in the future. This timber is called "clearwood". A method is presented for determining what prices clearwood might fetch in any particular country/ market.
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Gluing of radiata pine veneer with ureaformaldehyde
1989The purpose of this work was to assess various methods of gluing radiata pine plywood with a wood moisture content above 10% using ureaformaldehyde. The following variables and levels were examined: temperature: 105° C and 120° C; wood moisture content: 10%, 15% and 20%, extender in the glue mixture: 0%, 20% and 30%.
Devlieger S., Francis +1 more
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Development of Plantlings and Stecklings of Radiata Pine
1993Tasman Forestry Limited (TFL) manages 200000 hectares of Pinus radiata (D.Don) forests in New Zealand primarily for clearwood production, which necessitates intensive pruning to 6.0 m of the final crop stems. Pulpwood and framing timber come from intermediate thinnings and unpruned top logs.
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