Association of Phytophthora drechsleri Tucker With Death of Pinus radiata D. Don in Southern New South Wales

1975 ◽  
Vol 23 (2) ◽  
pp. 285 ◽  
Author(s):  
WA Heather ◽  
BH Pratt
Keyword(s):  
Pinus Radiata ◽  
Root Zone ◽  
New South ◽  
New South Wales ◽  
Causal Agent ◽  
Experimental Conditions ◽  
South Wales ◽  
Phytophthora Drechsleri

Phytophthora drechsleri was found to be abundant in the root zone of declining specimens of 3-year- old Pinus radiata growing in wet conditions at Yass in southern New South Wales. One-month-old and 6-month-old seedlings of P. radiata inoculated with Phytophthova drechsleri under experimental conditions rapidly developed symptoms of disease similar to those observed in the field. Phytophthora drechsleri is suggested as the causal agent of disease in young plants grown on water-gaining sites.

scholarly journals Bomb Radiocarbon in Tree Rings from Northern New South Wales, Australia: Implications for Dendrochronology, Atmospheric Transport, and Air-Sea Exchange of CO2

Radiocarbon ◽  
2003 ◽  
Vol 45 (3) ◽  
pp. 431-447 ◽  
Author(s):  
Quan Hua ◽  
Mike Barbetti ◽  
Ugo Zoppi ◽  
David M Chapman ◽  
Bruce Thomson
Keyword(s):  
Pinus Radiata ◽  
Atmospheric Transport ◽  
New South ◽  
New South Wales ◽  
Ring Width ◽  
Study Region ◽  
False Rings ◽  
South Wales ◽  
Bomb Radiocarbon ◽  
Standard Techniques

We have analyzed by radiocarbon 27 consecutive single rings, starting from AD 1952, of a preliminarily cross-dated section (DFR 021) of Pinus radiata, which grew in Armidale, northern New South Wales, Australia. The bomb 14C results suggested the possibility of 2 false rings, and, consequently, 2 misidentified rings in the preliminary count for this section. This possibility was supported by a better ring-width correlation between the revised DFR 021 count and other Pinus radiata chronologies in the study region. This indicated that bomb 14C is a useful tool to complement the standard techniques of dendrochronology in tree species where annual rings are not always clearly defined.

Site classification of Pinus radiata plantations in the lithgow district, New South Wales, Australia

1985 ◽  
Vol 12 (1) ◽  
pp. 53-63 ◽  
Author(s):  
John Turner ◽  
Geoff I. Holmes
Keyword(s):  
Pinus Radiata ◽  
New South ◽  
New South Wales ◽  
Site Classification ◽  
South Wales

Comparison of Bird Counts From Pine Forest and Indigenous Vegetation.

1977 ◽  
Vol 4 (3) ◽  
pp. 281 ◽  
Author(s):  
PV Driscoll
Keyword(s):  
Pinus Radiata ◽  
New South ◽  
New South Wales ◽  
Bird Communities ◽  
Pine Forest ◽  
Native Forest ◽  
Number Of Species ◽  
Eucalyptus Forest ◽  
South Wales ◽  
Forest Habitats

Bird counts were taken in Feb., March and July 1975 in 4 native habitats, ranging from wet sclerophyll Eucalyptus forest to mallee (E. stricta)-heath on the Boyd Plateau, and two Pinus radiata habitats (20 yr and 40 yr) in the Jenolan State Forest, New South Wales, Australia. In each season the number of birds and the number of species was highest in the native forest habitats, lower in the pine habitats and least in the mallee-heath. The composition of native forest, pine forest, and mallee-heath bird communities shows considerable differences.

Characteristics of soil and productivity of Pinus radiata (D Don) in New South Wales .II. Pedogenesis on a range of parent materials

Soil Research ◽  
1986 ◽  
Vol 24 (1) ◽  
pp. 103 ◽  
Author(s):  
PJ Ryan
Keyword(s):  
Pinus Radiata ◽  
Soil Depth ◽  
New South ◽  
New South Wales ◽  
Morphological Properties ◽  
Slope Position ◽  
Site Classification ◽  
Physical Factors ◽  
Parent Materials ◽  
South Wales

Soil profile descriptions were made at a series of 11-year-old unfertilized Pinus radiata stands in the Lithgow district of New South Wales. Catenas within three soil parent materials were selected to compare variation in soil physical and morphological properties with growth of P. radiata. These parent materials were a Silurian siltstone, a Permian conglomerate and a Silurian-Devonian rhyolite. Basal area growth of the P. radiata stands increased down catenas on the Silurian siltstone as soil depth to a root impeding layer increased. Plateau soils on the Permian conglomerate had hardsetting surfaces and high gravel contents, and were associated with very poor pine growth. By way of contrast, lower slope, colluvial gradational earths were deep, fine-textured soils and supported more productive pine stands. The Silurian-Devonian rhyolite parent material produced highly leached soils, commonly with conspicuously bleached A2 horizons and poor sandy textures of surface soil. Both physical and chemical features of the rhyolite interacted with pedological processes to affect adversely soil physical conditions and trace element availability, in particular boron. The poorer P. radiata growth on lower or concave slope in comparison with upper slope position was a result of increased soil leaching and horizon differentiation. This pattern contrasted with improved pine growth on the deeper soils on lower slopes on the two sedimentary parent materials. These case studies emphasize the importance of geology and pedological processes when evaluating the applicability of specific soil physical factors to site classification for P. radiata plantations.

The invasion of two native Eucalypt forests by Pinus radiata in the Blue Mountains, New South Wales, Australia

2005 ◽  
Vol 125 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Moira C. Williams ◽  
Glenda M. Wardle
Keyword(s):  
Pinus Radiata ◽  
New South ◽  
New South Wales ◽  
Blue Mountains ◽  
South Wales ◽  
Eucalypt Forests

Influence of prior land use on wood quality of Pinus radiata in New South Wales, Australia

2008 ◽  
Vol 255 (7) ◽  
pp. 2626-2633 ◽  
Author(s):  
Carolyn A. Raymond
Keyword(s):  
Land Use ◽  
Pinus Radiata ◽  
New South ◽  
Wood Quality ◽  
New South Wales ◽  
South Wales

Characteristics of soil and productivity of Pinus radiata (D Don) in New South Wales .I. Relative importance of soil physical and chemical parameters

Soil Research ◽  
1986 ◽  
Vol 24 (1) ◽  
pp. 95 ◽  
Author(s):  
ND Turvey ◽  
AB Rudra ◽  
J Turner
Keyword(s):  
Total Nitrogen ◽  
Pinus Radiata ◽  
Soil Depth ◽  
New South ◽  
New South Wales ◽  
Chemical Parameters ◽  
South Wales ◽  
Physical And Chemical Parameters ◽  
Volume Production ◽  
Physical And Chemical

The objectives of the study were to determine whether selected soil physical and chemical parameters could be used as predictors of site and the productivity of Pinus radiata (D. Don). The study was carried out in the Lithgow district of New South Wales. Sixty plots were located in first-rotation unthinned stands of P. radiata of age 11 years. None of the stands had received fertilizer. The stands were selected to cover a wide range of merchantable volume production (0-175 m3 ha-1), and were located on a range of geological types including siltstone, medium-grained quartz sandstone, conglomerate, and rhyolitic tuff and lava. Soil depth was positively correlated, and per cent sand negatively correlated with all stand production variables. No other soil physical-or chemical variables were correlated consistently with stand variables. Discriminant analysis was used to test for the ability of a selected subset of soil physical and chemical variables to discriminate (a) between three volume production classes, and (b) between three geological groups. Soil depth, per cent sand, and total nitrogen contributed to two functions which discriminated between volume production groups. Cation exchange capacity, Bray phosphorus, per cent sand, exchangeable sodium, and total nitrogen contributed to two functions which discriminated between geological groups. Thus soil physical parameters were predominant in discriminating between volume production groups, and soil chemical parameters were predominant in discriminating between geological groups.

scholarly journals Product and Residue Biomass Equations for Individual Trees in Rotation Age Pinus radiata Stands under Three Thinning Regimes in New South Wales, Australia

Forests ◽  
2017 ◽  
Vol 8 (11) ◽  
pp. 439 ◽  
Author(s):  
Xin Wang ◽  
Huiquan Bi ◽  
Fabiano Ximenes ◽  
Jorge Ramos ◽  
Yun Li
Keyword(s):  
Pinus Radiata ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Biomass Equations ◽  
Residue Biomass ◽  
Rotation Age ◽  
Individual Trees

Poor nodulation of lupins and tropical legumes in northern New South Wales

1981 ◽  
Vol 21 (113) ◽  
pp. 588
Author(s):  
H Philpotts
Keyword(s):  
Field Experiments ◽  
Root Zone ◽  
New South ◽  
Manganese Content ◽  
New South Wales ◽  
High Rate ◽  
Soil Extracts ◽  
South Wales ◽  
Tropical Legumes ◽  
Rhizobium Lupini

Nodulation problems with tropical legumes and lupins in northern New South Wales appeared due to the inoculant's failure to establish itself around the seedling root, and were more severe with direct drilling. The cause of this was investigated in a number of laboratory, glasshouse and field experiments. Krasnozem soils were found to be more inhibitory than three other types, but this did not appear related to pH or manganese content. Raising the pH of krasnozem soil with lime did not improve survival of rhizobia unless the soil was autoclaved. Soil extracts suppressed multiplication in sterile nutrient sand except when micro-filtered, but a greater increase occurred with no extract. Extracts of both carpet grass and kikuyu depressed nodulation of glycine (Neonotonia wightii) but only the carpet grass extract adversely affected Siratro (Macroptilium atropurpureum). Root washings of the two grasses restricted multiplication of Rhizobium lupini, kikuyu having the greater effect. Lupin seedlings growing in the presence of kikuyu roots had fewer rhizobia in the root zone and were less well nodulated except when inoculated at a high rate. The susceptibility of WU425 and the clover strain TA1 appears not to differ and the host plant (lupin or clover) did not influence rhizobium numbers in the rhizosphere. In the field both the number of rhizobia in the root zone of lupins and the percentage of plants nodulated, increased with increasing rate of inoculation. The results indicate that suppression is due to both micro-organisms and a heat labile chemical factor.

scholarly journals A New Breeding Strategy for Pinus radiata in New Zealand and New South Wales

2009 ◽  
Vol 58 (1-6) ◽  
pp. 28-38 ◽  
Author(s):  
H. S. Dungey ◽  
J. T. Brawner ◽  
F. Burger ◽  
M. Carson ◽  
M. Henson ◽  
...  
Keyword(s):  
New Zealand ◽  
Pinus Radiata ◽  
New South ◽  
New South Wales ◽  
Radiata Pine ◽  
Breeding Strategy ◽  
Forward Selection ◽  
Additional Increase ◽  
South Wales ◽  
New Strategy

Abstract A new breeding strategy is presented for the Radiata Pine Breeding Company, a New Zealand based research consortium, that drives the breeding program for Pinus radiata for both the New Zealand and New South Wales based Australian forest plantation industry. The new strategy builds on the existing base for P. radiata, and on the last strategy review in 2000. The new strategy comprises a large open-pollinated (OP) Main Population (MP) with 500 female parents and two sublines (250 female parents per subline). The MP will be tested using alpha designs, single-tree plots and incomplete blocks to maximise efficiency. Each subline will be tested on four sites, geographically distant from the other subline. The MP will be managed in discrete generations. Selection of the next generation will be using a combination of backward and forward selection, but the strict control of inbreeding with identified lineage will rely on the development of parental reconstruction for OP progeny. There are alternatives to this, however, such as estimating the group coancestry and accepting some additional increase in inbreeding. This is a new and significant departure from previous breeding strategies for P. radiata in New Zealand. There will also be a single, small Elite Population (EP), tested 50% as progeny and 50% as clones. Twenty four parents will be tested each year as clones and 24 as seedling progeny with some overlap between the two. It is expected that the clonal population will capture the greatest gains in traits with low heritabilities, and the half-sib progeny will capture the greatest gains in traits with high heritabilities. The two sublines will be maintained in the EP, and breeding will be managed as a rolling front with trials established every year, while trials of the MP will be established every 10 years.

Sign in / Sign up

Export Citation Format

Share Document