Results 131 to 140 of about 2,378 (180)

Commercial micropropagation of radiata pine

1993
The incentive for Tasman Forestry Ltd. (T.F.L.) entering a programme of clonal forestry is the prospect that some clones will produce a large increase in value over unimproved stock. Some of the most genetically advanced control pollinated families are anticipated to yield an approximate 20% increase, over unimproved seed.
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Dielectric properties of radiata pine

2000
The dielectric properties (< 1 MHz) of radiata pine were studied as a function of moisture content to determine if any potential existed for moisture measurement above the fibre saturation point (approximately 35 % moisture). An edge capacitance correction and a method of estimating the conductivity contribution to the dielectric loss were employed.
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Wood colour of radiata pine

2005
The colour of the wood in radiata pine has large variations due to natural factors and also wood processing treatments. Wood colour has been previously studied in many wood-related processing areas, such as pulp and paper, coating, photoyellowing and veneering, while few studies have been done on the colour of fresh, green wood.
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Suspected copper deficiency in radiata pine

Plant and Soil, 1969
Growth 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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Heritability of response to inoculation by pine pitch canker of seedlings of radiata pine

Australian Forestry, 2006
Summary 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, M. E. Devey, T. L. Gordon, W. Werner, D. R. Vogler, C. Balocchi, M. J. Carson   +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, 2011
Harvesters 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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Genetic gain trials of radiata pine

1991
Forest 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, 1969
SUMMARY 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, 1968
SUMMARY 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

1984
Due 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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