Trangie wallaby grass [Austrodanthonia caespitosa (Gaudich.) H.P. Linder]

2008 ◽  
Vol 48 (4) ◽  
pp. 575 ◽  
Author(s):  
C. Waters ◽  
B. Dear ◽  
B. Hackney ◽  
P. Jessop ◽  
G. Melville
Keyword(s):  
Agricultural Research ◽  
New South ◽  
Dactylis Glomerata ◽  
Research Centre ◽  
Close Relative ◽  
Summer Drought ◽  
Native Grass ◽  
South Wales ◽  
Eastern Australia ◽  
Seed Increase

Trangie wallaby grass, Austrodanthonia caespitosa (Dc1), is a composite of wild ecotypes collected from western New South Wales. A. caespitosa is a widespread native grass adapted to a broad range of environmental conditions but is particularly suited to low rainfall (300–450 mm) areas of south-eastern Australia. In this region, this cultivar has a demonstrated superior persistence to its close relative A. richardsonii (Cashmore) H.P. Linder cv. Taranna and the widely used pasture species, phalaris (Phalaris aquatica cv. Sirolan) and cocksfoot (Dactylis glomerata cv. Currie). This superior persistence was apparent in its ability to recruit new seedlings, even under summer drought conditions. Trangie wallaby grass was maintained under seed increase for 5 years at Trangie Agricultural Research Centre and subsequently at Dareton Agricultural and Advisory Station for 3 years.

Response of Inga rice to nitrogen fertilizer rate and timing in New South Wales

1982 ◽  
Vol 22 (115) ◽  
pp. 62 ◽  
Author(s):  
DP Heenan ◽  
LG Lewin
Keyword(s):  
Nitrogen Fertilizer ◽  
Agricultural Research ◽  
New South ◽  
New South Wales ◽  
Research Centre ◽  
Yield Response ◽  
Fertilizer Rate ◽  
South Wales ◽  
Panicle Number ◽  
Nitrogen Fertilizer Rate

Two experiments were done at the Yanco Agricultural Research Centre, New South Wales, in 1978-79 and 1979-80 to measure the response of long grain rice, cv. Inga, to rates of nitrogen applied at two different times. The highest yields were recorded when the nitrogen was applied at panicle initiation. Increasing the rate from 100 to 200 kg N/ha at panicle initiation had no effect on grain yield. When the nitrogen was applied earlier, just before permanent water, yields were highest at 50 kg N/ha and declined at the highest rates (150 and 200 kg N/ha). This negative yield response was mainly due to a drop in the percentage of filled florets, and occurred despite an increase in panicle number.

Variation in non-wool components of the greasy fleece over the body of Merino sheep

1984 ◽  
Vol 24 (124) ◽  
pp. 62 ◽  
Author(s):  
KJ Thornberry ◽  
KD Atkins
Keyword(s):  
Agricultural Research ◽  
New South ◽  
Correlation Coefficients ◽  
Matter Content ◽  
The Body ◽  
Research Centre ◽  
Merino Wool ◽  
South Wales ◽  
Sampling Position ◽  
One Year

Twelve one-year-old ewes were randomly selected from each of four flocks running together at pasture at the Agricultural Research Centre, Trangie, New South Wales. The flocks represented fine wool, medium wool non-Peppin and medium wool Peppin strains of Merino. Wool samples were collected from nine sites over the body of each ewe. Gradients over the fleece in percentage suint, percentage wax, wax:suint ratio, percentage dust, percentage vegetable matter and estimated clean scoured yield were demonstrated. Although flocks differed in the average level of these components, gradients were similar for the different flocks. The mid-side appeared to be a satisfactory sampling position for estimating the suint, wax, wax:suint ratio, dust and yield characteristics of the whole fleece. The mid-side values for these characteristics were similar to the average values for all nine sites and the correlation coefficients between mid-side values and the total of all sites for percentage suint, percentage wax, wax:suint ratio, percentage dust and estimated yield were 0.94, 0. 8.9, 0.90 and 0.87 respectively. These were higher than for any other single sampling position. The correlation between mid-side and the overall value for vegetable fault was only 0.56 and neither the mid-side nor any other single site appeared to be sufficiently reliable to predict total vegetable matter content.

The response of Phalaris tuberosa and other grasses to seasonal heavy stocking on the southern tablelands of New South Wales

1964 ◽  
Vol 4 (13) ◽  
pp. 141 ◽  
Author(s):  
EF Biddiscombe
Keyword(s):  
Natural Regeneration ◽  
New South ◽  
Dactylis Glomerata ◽  
Perennial Grasses ◽  
The Third ◽  
South Eastern ◽  
Commercial Strain ◽  
South Wales ◽  
Eastern Australia ◽  
Dactylis Glomerata L

Seven perennial grasses were evaluated for animal production and for persistence, when stocked heavily in summer or winter with young Merino wethers. The commercial strain of Phalaris tuberosa L., which is sown commonly in south-eastern Australia and is often low yielding during summer and winter, was taken as the standard. At first, the productivity of Bromus inernis Leyss. in summer and Dactylis glomerata L. (Brignoles strain) in winter was reflected in higher liveweight and wool yields for these seasons. This advantage over Phalaris was lost when the Bromus pasture weakened in the third summer and the Dactylis in the third winter. The latter sward revived by natural regeneration from seed, whereas P. tuberosa developed and maintained a dense sward of the original plants. On this evidence Bromus and Dactylis are possible replacements for Phalaris for specific seasonal purposes, but management to retain vigorous swards still needs study. These aspects are discussed.

Influence of nectar volume and sugar content on seed set in lucerne

1992 ◽  
Vol 32 (6) ◽  
pp. 713 ◽  
Author(s):  
RH Holtkamp ◽  
KJ Morthorpe ◽  
AD Clift
Keyword(s):  
Seed Set ◽  
Agricultural Research ◽  
New South ◽  
Sucrose Concentration ◽  
Sugar Content ◽  
Research Centre ◽  
Nectar Volume ◽  
South Wales ◽  
Liquid Chromatographic Analysis ◽  
Liquid Chromatographic

Twenty-four cultivars of lucerne, representing the genetic variation currently grown in Australia, were grown with flood irrigation at the Agricultural Research Centre, Trangie, New South Wales. Soil type was a red-brown earth Dr 2.23. Plants were sampled during peak flowering to determine nectar volume per 100 florets. Seed set was determined by hand collection and threshing of 100 racemes of mature pods per cultivar. Glucose, fructose and sucrose concentrations in the nectar were measured using high pressure liquid chromatographic analysis. NO other sugars were found in the nectar. Seed set was found to be correlated (r = 0.74, P<0.01) with both nectar volume and sucrose concentration.

Topsoil removal and carbon addition for weed control and native grass recruitment in a temperate-derived grassland in northern New South Wales

2017 ◽  
Vol 39 (4) ◽  
pp. 355 ◽  
Author(s):  
Sharon L. Brown ◽  
Nick Reid ◽  
Jackie Reid ◽  
Rhiannon Smith ◽  
R. D. B. (Wal) Whalley ◽  
...  
Keyword(s):  
Weed Control ◽  
Festuca Arundinacea ◽  
New South ◽  
New South Wales ◽  
Intervention Strategy ◽  
Native Grasses ◽  
Native Grass ◽  
South Wales ◽  
Eastern Australia ◽  
Weed Cover

Restoring the grassy understorey to temperate woodlands in south-eastern Australia is often disregarded due to a poor understanding of the techniques involved. The natural recruitment of native grasses is uncommon in the remnants of some of these woodlands, so the restoration of the grass layer is often dependent on interventions to overcome restoration barriers. Soil enrichment from agricultural fertilisers favours the invasion of exotic broadleaf weeds and grasses, and is one of the primary barriers to the successful recruitment and establishment of native grasses, which dominated before agricultural development. This study on the Northern Tablelands of New South Wales investigated the effects of different weed control treatments – scalping, glyphosate (Roundup®) herbicide, and combinations of glyphosate with carbon (sugar and sawdust) addition and a control (nil treatment) recruitment of native grasses and weed emergence after broadcast seeding. The experimental site was a mown grass lawn consisting of fescue (Festuca arundinacea Shreb.), cocksfoot (Dactylis glomerata L.) and paspalum (Paspalum dilatatum Poir). Native grass recruitment varied significantly between treatments. The maximum number of recruits in scalped plots was 29 recruits m–2 compared with an average of <2 recruits m–2 for the glyphosate and glyphosate carbon combinations. Scalping reduced soil nitrogen from 0.6% in non-scalped plots to 0.1% and phosphorus from 191.6 ppm to 40.3 ppm. Maximum weed cover occurred in the glyphosate herbicide treatment (45%), whereas combinations of glyphosate plus either sugar or sawdust maintained weed cover at 13%. The present study suggests that scalping may be a successful intervention strategy because it has the potential to significantly improve native grass recruitment compared with other restoration methods used in this study. Scalping allows more time for native grasses to germinate and establish in the absence of competitive fast-growing exotic weeds.

Growth, grain yield and water use of rice grown under restricted water supply in New South Wales

1984 ◽  
Vol 24 (124) ◽  
pp. 104 ◽  
Author(s):  
DP Heenan ◽  
JA Thompson
Keyword(s):  
Grain Yield ◽  
Water Use ◽  
Agricultural Research ◽  
New South ◽  
New South Wales ◽  
Research Centre ◽  
Total Water ◽  
Leaf Stage ◽  
South Wales ◽  
Matter Production

Growth, grain yield and water use by Calrose rice grown under three flood irrigation regimes and four nitrogen fertilizer treatments were examined at Yanco Agricultural Research Centre, New South Wales, to determine the response of rice under a restricted supply of water. Growth under weekly irrigations before panicle initiation severely restricted dry matter production. When nitrogen (90 kg N/ha) was split with 45 kg N/ha at the three-leaf stage and 45 kg N/ha at panicle initiation followed by permanent flood at panicle initiation, yield was 8.67 t/ha. This was equivalent to yields obtained from conventional practice where all fertilizer was applied at the three-leaf stage followed immediately by permanent flood. Delaying permanent flood until panicle initiation resulted in approximately 23% saving in total water use. Weekly irrigation throughout the season produced low vegetative growth and grain yields.

Evidence of High Sea Level during Isotope Stage 5c in Queensland, Australia

1985 ◽  
Vol 24 (1) ◽  
pp. 103-114 ◽  
Author(s):  
J. W. Pickett ◽  
C. H. Thompson ◽  
R. A. Kelley ◽  
D. Roman
Keyword(s):  
Sea Level ◽  
New South ◽  
Good Condition ◽  
Coastal Dunes ◽  
Intertidal Sediments ◽  
South Wales ◽  
Eastern Australia ◽  
Maximum Period ◽  
High Dune

Thirty-nine species of scleractinian corals have been recovered from under a high dune on the western (mainland) side of North Stradbroke Island, eastern Australia. The corals are associated with thin intertidal sediments and their good condition implies burial in situ and preservation in a saturated zone. Most likely this occurred as the coast prograded and a large dune advanced into the littoral zone, burying intertidal sediments and coral. The species assemblage indicates a sheltered environment but one open to the ocean without wide fluctuations in salinity. Three species yielded a mean 230Th/234U age of 105,000 yr B.P. which is significantly younger than the nearest Pleistocene corals at Evans Head, New South Wales. The corals provide evidence of a sea stand near present sea level during isotope Stage 5c, which is considerably higher than previously suggested for this period. Their good condition implies that the overlying parabolic dune is of comparable age and formed during that high stand of sea level. Also, the isotope age provides a maximum period for the development of giant podzols in the podzol chronosequences on coastal dunes in southern Queensland.

An Aerial Survey of 3 Game Species of Waterfowl (Family Anatidae) Populations in Eastern Australia

1986 ◽  
Vol 13 (2) ◽  
pp. 213 ◽  
Author(s):  
LW Braithwaite ◽  
M Maher ◽  
SV Briggs ◽  
BS Parker
Keyword(s):  
Surface Waters ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
Game Species ◽  
South Wales ◽  
Black Duck ◽  
The Pacific ◽  
Eastern Australia ◽  
Central Eastern

Populations of waterfowl of three game species, the Pacific black duck Anus superciliosa, grey teal A. gibberifrons, and maned duck Chenonetta jubata, were assessed by aerial survey in October 1983 within a survey region of 2 697 000 km2 of eastern Australia. The numbers of each species were assessed on all surface waters of over 1 ha, and on a sample of smaller surface waters within 10 survey bands each 30 km wide and spaced at intervals of 2� latitude from 20�30' to 38�30'S. The area within the survey bands was 324 120 km2, which gave a sampling intensity of 12.0% of the land surface area. The area of features shown as wetlands or water impoundments within the survey bands on 1 : 2 500 000 topographic maps was 19 200 km2 or 11.2% of the total area of these features in the survey region. The area of surface waters surveyed was assessed at 465 300 ha. Assessments of populations of each species were tallied for wetlands by grid cells of 6 min of 1� longitude along the survey bands (258-309 km2 depending on latitude). Distributions were then mapped, with log*10 indices of populations in each cell. Distributions of the black duck and grey teal showed a pattern of intense aggregation in limited numbers of cells, that of the maned duck was more evenly distributed. The major concentrations of the Pacific black duck were recorded in northern New South Wales and the south-eastern, western, central eastern and central coastal regions of Queensland; those of the grey teal were in south-western, western and northern New South Wales and central-eastern Queensland; the maned duck was broadly distributed over inland New South Wales with the exception of the far west, inland southern Queensland, and central northern Victoria.

scholarly journals The Tumbarumba Basaltic Gem Field, New South Wales: in relation to sapphire-ruby deposits of eastern Australia

2002 ◽  
Vol 54 (2) ◽  
pp. 215-248 ◽  
Author(s):  
F. L. Sutherland ◽  
I. T. Graham ◽  
R. E. Pogson ◽  
D. Schwarz ◽  
G. B. Webb ◽  
...  
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales ◽  
Eastern Australia
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