Development of heartwood in response to water stress for radiata pine in Southern New South Wales, Australia

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.

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An analysis of Atriplex inflata populations from western New South Wales

Australian Journal of Botany ◽

10.1071/bt9710191 ◽

1971 ◽

Vol 19 (2) ◽

pp. 191 ◽

Cited By ~ 4

Author(s):

RA Malik ◽

DJ Anderson

Keyword(s):

Water Stress ◽

Soil Type ◽

New South ◽

New South Wales ◽

Dry Weight ◽

Solution Culture ◽

Subsequent Performance ◽

South Wales ◽

Type Water ◽

And Performance

Pattern analyses of density and performance data collected from separate populations of Atriplex inflata in the western Riverine Plain of New South Wales consistentiy indicated two linear scales of contagion at 2-4 and 16 m. The largerscale plant pattern corresponds to a similar pattern of microtopographical variation but regressions of density alone on microtopography are significant, indicating possible alternative mechanisms for establishment (as indicated by density data) and subsequent performance (as indicated by cover data). The performance of A. inflata plants has been assessed experimentally on a range of natural soils and in controlled nutrient solution culture. The results suggest that performance (as estimated by dry weight yield) is significantly affected by soil type, water stress, and a soil type ° water stress interaction. The prime effect of soil variation on yield appears to be mediated by variation in soil cation balance.

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Aves, Tumut, New South Wales, South-eastern Australia

Check List ◽

10.15560/3.3.168 ◽

2007 ◽

Vol 3 (3) ◽

pp. 168

Author(s):

David B. Lindenmayer ◽

Ross B. Cunningham ◽

Chris MacGregor ◽

Rebecca Montague-Drake ◽

Mason Crane ◽

...

Keyword(s):

New South ◽

New South Wales ◽

Radiata Pine ◽

Pine Plantation ◽

Study Region ◽

South Eastern ◽

Eucalyptus Forest ◽

South Wales ◽

Eastern Australia ◽

South Eastern Australia

A large-scale, long-term study of the impacts on vertebrates of landscape change and habitat fragmentation is taking place at Tumut in southern New South Wales, south-eastern Australia. Field surveys focus on counting birds within three broad kinds of sites in the study region. These are: (1) A randomized and replicated set of 85 sites in remnants or fragments of native Eucalyptus forest located within the boundaries of the Radiata Pine plantation. (2) Sites dominated by Radiata Pine plantation trees (N = 40 sites). (3) Sites in the large areas of continuous Eucalyptus forest adjacent to the plantation that act as “controls” (N = 40 sites). We list of birds recorded during 1996 and 1997. A total of 92 species from 34 families was recorded. The list will be useful for workers examining bird responses to fragmented landscapes as well as those interested in the biodiversity values of plantation landscapes.

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Relative drought tolerance of three grass species from the Northwestern slopes of New South Wales.

The Rangeland Journal ◽

10.1071/rj9790244 ◽

1979 ◽

Vol 1 (3) ◽

pp. 244 ◽

Cited By ~ 1

Author(s):

AR Harradine ◽

RDB Whalley

Keyword(s):

Water Stress ◽

Native Species ◽

New South ◽

New South Wales ◽

Moisture Stress ◽

Grass Species ◽

The North ◽

South Wales ◽

Native Pastures ◽

North Western

On the north-western slopes of New South Wales, native pastures are subjected to frequent and often severe moisture stress during the summer growing season (Daniel and Watt 1967) so the relative drought tolerances of the component species may be important in determining pasture composition. Survival of three common native species from this area, Aristida ramosa R.Br., Danthonia linkii Kunth and Dichanthium sericeum (R.Br.) A. Camus, when subjected to water stress was compared in a glasshouse pot trial. The use of cycles rather than a single water stress in drought resistance studies, to simulate field conditions more closely, has been emphasised by Gates (1974). This experiment was designed to determine the relative tolerance of the above three species to repeated, increasing periods of water stress in a limited volume of soil. Pots of different sizes were used to determine the effect of differences in the rate of development of water stress on plant survival.

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Realised gains for growth traits by radiata pine seed orchard seedlots in New South Wales

Australian Forestry ◽

10.1080/00049158.1991.10674578 ◽

1991 ◽

Vol 54 (4) ◽

pp. 197-208 ◽

Cited By ~ 5

Author(s):

I. G. Johnson

Keyword(s):

Growth Traits ◽

New South ◽

New South Wales ◽

Seed Orchard ◽

Radiata Pine ◽

South Wales

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Relationship Between Diaspore Characteristics and Distribution of Grasses Around Sheep Camps on the Northern Tablelands of New-South-Wales

Australian Journal of Botany ◽

10.1071/bt9890501 ◽

1989 ◽

Vol 37 (6) ◽

pp. 501 ◽

Cited By ~ 6

Author(s):

RW Rogers ◽

RDB Whalley

Keyword(s):

Water Stress ◽

Seed Germination ◽

New South ◽

New South Wales ◽

Lower Proportion ◽

Individual Species ◽

South Wales ◽

Germination Characteristics ◽

Dispersal Unit ◽

The Individual

Twenty-seven common grasses on the Northern Tablelands of New South Wales were classified according to their occurrence on or off sheep camps in unfertilised natural pastures. A number of seed and seed germination attributes were examined in relation to the distribution of the individual species. Camps had a greater proportion of introduced grasses, and of annual or short-lived perennials, than off-camp zones. The sheep camp grasses in general had heavier seeds, more rapid germination, and their seeds in general did not have a sharp callus, antrorse hairs on the callus, or awns. If awns were present on sheep camp species a lower proportion were hygroscopically active than for off-camp species. There were no differences in the presence or absence of accessory floral structures in the dispersal unit, hairs on the coleorrhiza or in the shapes of seeds between sheep camp and off-camp grasses. The differences in seed and seed germination characteristics found between sheep camp and off-camp species are explained in terms of the differences in environment (water stress and damage by sheep) encountered by grasses germinating and establishing on and off the sheep camps.

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