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Articles 31 - 60 of 883
Full-Text Articles in Life Sciences
Demonstration Of Pasture Cultivars On Various Soil Types In The Geraldton Distict., Brad Nutt
Demonstration Of Pasture Cultivars On Various Soil Types In The Geraldton Distict., Brad Nutt
Experimental Summaries - Plant Research
Trial 90GE13
Demonstration of pasture cultivars on a Chapman Valley red/brown sandy loam.
Location: Northern Gulley,
SOIL TYPE: Red/brown sandy loam pH 5 . 4 (water)
Trial 90GE14
Demonstration of pasture cultivars on a gravelly grey sand at Allanooka.
Location: Allanooka.
SOIL TYPE: Gravelly grey sand, pH 5.8 (water)
Trial 90GE15
Demonstration of pasture cultivars on an Eradu sandplain soil.
Location: Ogilivie.
SOIL TYPE: Deep yellow loamy sand, pH 6.0 (water)
Trial 90GE16
Demonstration of pasture cultivars on a low rainfall maasive red earth at Mullewa.
Location: Mullewa.
SOIL TYPE: Red sandy clay loam pH 6.2 (water)
Evaluation Of Trifolium Pasture Species On A Summer Moist Joel Sub Soil North West Of Harvey., R. Snowball
Evaluation Of Trifolium Pasture Species On A Summer Moist Joel Sub Soil North West Of Harvey., R. Snowball
Experimental Summaries - Plant Research
Trial 90HA2
Introduce a range of long season annual pasture species and 1 perennial species in order to utilize summer sub soil moisture more effectively than the existing subterranean clover pastures.
A Survey Using 14n:15n Natural Abundance Of The N Fixation By Pasture Legumes In The Field And Of Factors Affecting Fixation, P. Sanford
Experimental Summaries - Plant Research
Trial 89AL43, 90AL50, 90KO16
A preliminary survey using 14N:15N natural abundance to assess N2 fixation by pasture legumes in the field.
Location: Albany.
1. Develop a sampling methodology for the 1990 farm survey.
2. An initial assessment of nitrogen fixation by pasture legumes in the field.
Trial 90MT70
Using 14N:15N natural abundance to assess N2-fixation by subterranean clover.
Location Mount Barker Research Station
To examine symbiotic nitrogen fixation by subterranean clover, in detail, through one season in a productive pasture. To better assess the point in the season at which as one time sampling would most accurately determine the proportion …
Development And Management Of Cattle Pastures In The High Rainfall Zone., Tony Albertsen
Development And Management Of Cattle Pastures In The High Rainfall Zone., Tony Albertsen
Experimental Summaries - Plant Research
Trial 87V8
Development and management of cattle pastures in the high rainfall zone.
To compare the effect of pasture species, pasture management and grazing management on pasture quantity, quality and cattle production.
Phalaris evaluation
In 1989 ninety three lines of Phalaris agrundinacea backcross with P. aquatica, bred by Dr. R.N. Oram (CSIRO Canberra) were drilled sown into unreplicated 10m single row plots at Vasse Research Station. In addition 7 controls (with two replications) were planted. Similar trials were planted by Mr. L. Cransberg (Albany) and Dr. R.N. Oram (Bendigo).
Evaluation of annual and short term rotation ryegrass.
The increasing range …
Effect Of Pasture Species On Pasture Production And Following Cereal Yields On Heavy Textured Soils In Low Rainfall Areas. Regeneration Of Pasture Legume Cultivars On Low Rainfall Red Loam Soils., Bradley Nutt
Experimental Summaries - Plant Research
Trial 90GE17
Aphid tolerance evaluation in annual medics
Location: Tenindewa
Maturity and seed yields of annual medic lines with or with out aphid control using Pirmor.
Trial 90GE116
Evaluation of aphid tolerance in annual medics
Location: Tenindewa
Dry matter and seed yield of annual medic lines with and without aphid control using Pirmor.
Trial 90GE34
Effect of pasture species on pasture production and cereal yields on low rainfall red loams.
Location: North Mullewa Research Station, Morawa Agricultural School.
Regeneration of annual pasture cultivars on hardsetting red clay loams at North Mullewa and Morawa in 1989 and 1990.
Trial 88TS63
Effect …
Crop Management In Rows., R. Belford, G. P. Riethmuller, D. Tennant, D. Mcginnis, S. Mckeague
Crop Management In Rows., R. Belford, G. P. Riethmuller, D. Tennant, D. Mcginnis, S. Mckeague
Experimental Summaries - Plant Research
Trial 87M71
Effect of row spacing and stubble retention on the yield of wheat.
Location: Merredin Research Station.
Treatments, site management and results from 1987, 1988 and 1989 have been described in previous experimental summaries. Four row spacings (9, 18, 27 and 36 cm) are compared in either burnt or stubble retained plots, on a red brown earth on the Merredin Research Station. There are six replicates laid out in a randomised block design.
Trial 90ME32
Effect of row spacing and variety on the yield of wheat.
Location: duplex site at Crooks (see 1989 Experimental Summary)
This trial was carried …
Deep Phosphate Banding., R. J. Jarvis
Deep Phosphate Banding., R. J. Jarvis
Experimental Summaries - Plant Research
Trial 90A1
Lupins sown 26/4. York gum/jam sandy loam 33 ppm bic. P. Wheat in 1989. Cultivation reduced yield (one pass banding points). Deep banding P overcame this reduction. No additional response to banding compared with TD or D. No response to P. Yield 2.0 t/ha.
Trial 90A2
Wheat sown 8/6. York gum/jam sandy loam 42 ppm bic. P. Lupins in 1989. All treatments had deep cultivation in the one pass. No response to deep band cf. drilled. 23% response to P. Top yield was 1.9 Oa.
88EB12 Wheat sown 5/6. Loamy grey sand/clay 27 ppm bic. P. Lupins in …
Long Term Minimum Tillage Investigations., R. J. Jarvis
Long Term Minimum Tillage Investigations., R. J. Jarvis
Experimental Summaries - Plant Research
Trial 77M13
Location: Merredin
This site was in wheat in 1975 and 1976 before the treatments commenced on continuous wheat in 1977.
77M56
Location: Merredin
Sited alongside 77M13 with the same paddock history. Commenced the wheat/pasture rotation after wheat in 1975 and 1976.
Trial 86M79
Chemical and cultivated fallow in a pasture/wheat rotation on heavy land.
Location: Merredin.
At Merredin on salmon gum/gimlet soil. Pasture treatments and soil moisture measurements were conducted in 1990. Wheat 1991.
Trial 87NA80, 81, 82, 83
Direct drilling with modified combines compared with cultivation for pasture/wheat rotations with grass control treatments in the pasture year. …
Nitrogen Fertilizers For Cereals In Different Rotations., I. Rowland, M. G. Mason, W. Hawkins
Nitrogen Fertilizers For Cereals In Different Rotations., I. Rowland, M. G. Mason, W. Hawkins
Experimental Summaries - Plant Research
Trial 78B1
Nitrogen fertilizer requirement in alternate crop-pasture rotation.
Location: Badgingarra Research Station.
Soil type: Grey gravelly sand over gravel at about 15-20 cm.
History: Old clover land. All blocks were in clover pasture in 1977.
Trial 89WH19
Nitrogen fertilizer requirement in alternate crop-pasture rotation.
Location: Wongan Hills Research Station.
Soil type: Wongan yellow loamy sand
History: Old clover land. Whole area in clover 1988.
Trial 86WH36
Lupin/Wheat rotation
Location: Wongan Hills Research Station
Soil type: Wongan yellow loamy sand.
History: Cropped to wheat in 1985 on old clover land. Stubble of 1989 crop not burnt.
Trial 87NO84
Pea/Wheat Rotation …
Long-Term Rotation Trials., I. Rowland, W. Hawkins
Long-Term Rotation Trials., I. Rowland, W. Hawkins
Experimental Summaries - Plant Research
Trial 66M29
Location: Merredin Research Station.
An old land site, cleared in 1909. First sown to Cyprus Barrel medic in 1955, grazed and topdressed. Cropped, 1962 and 1964. Medic resown in 1965.
Trial 67C13
Location: Chapman Research Station
An old land site, cleared in 1903. Sown to Dwalganup sub clover in 1964, topdressed each year until the start of the trial in 1967. In 1981 to 83 all plots were reseeded with Northam at 20 kg/ha. In 1988 rotations were altered to allow inclusion of grain lupins, the following changes were made:
1. The 4 plots of 2 crop :2 …
Organochlorine Residues In Soil, Plant And In The Body And Wool Fat Of Wethers., Tony Albertsen
Organochlorine Residues In Soil, Plant And In The Body And Wool Fat Of Wethers., Tony Albertsen
Experimental Summaries - Plant Research
Trial 5841
The accumulation and rundown of dieldrin in wethers.
Location: Brookhampton, Donnybrook, Jindong, Manjimup, Carbunup and Pemberton
The background, aims, experimental method, and the first years results and discussion have been reported in the 1989 experimental summary.
The latter phase of the study was continued until December 1990 on six of the sites (these were Brookhampton, Donnybrook, Jindong, Manjimup, Carbunup and Pemberton) with similar measurements being obtained at regular intervals. The sheep monitored during this phase were the 1989 Main mob and the 1989 Replacement mob.
Evaluation Of Annual And Short Term Rotation Ryegrasses., Tony Albertsen
Evaluation Of Annual And Short Term Rotation Ryegrasses., Tony Albertsen
Experimental Summaries - Plant Research
The increasing range of annual and short term rotation ryegrasses have been evaluated in the high rainfall regions of the South West since 1986. To date promising later maturing cultivars such as Concord (in particular), Progrow, Aristocrat have consistently outyielded the standard early maturing cultivar Wimmera during the early winter period and in spring. These later maturing varieties have the potential to more fully utilise the whole of the growing season and to be conserved as hay during drier spring weather, whilst still retaining digestibility, protein and metabolisable energy. Viable seed production for self regeneration from later cut hay pastures …
Trace Element Nutrition., R. F. Brennan
Trace Element Nutrition., R. F. Brennan
Experimental Summaries - Plant Research
Trial 66N14
Long Term Copper Residual Trial
Location: Newdegate Research Station.
To determine the residual value of previously applied copper.
Trial 86N27
Residual Value of Zinc with DAP.
Location: Newdegate Research Station.
To determine the decline in effectiveness of zinc on this soil types using DAP.
86LG34
Residual Value of Copper, Zinc and Sulphur with DAP Fertilizer
Location: South Newdegate.
To determine the decline in effectiveness of copper, zinc and sulphur on this soil types using DAP
Trial 67E8
Grain Yields of Wheat Grown on a Residual Copper Trial.
Location: Esperance Downs Research Station.
The trial was originally designed to …
Understanding Crop Growth On Duplex Soils., R. Belford, Miles Dracup, D. Tennant
Understanding Crop Growth On Duplex Soils., R. Belford, Miles Dracup, D. Tennant
Experimental Summaries - Plant Research
Trial 88EB18
Location: East Beverley Research Station
Impeded early root growth.
Using aerial photography and crop growth data from previous seasons we identified areas on the site where crops grow well or poorly. One of the factors implicated in the poor growth areas is impeded early root growth (see Belford et al. and Tennant et at., 1990 Experimental Summaries, this section). Here we describe the problem and outline possible causes.
Trial 88EB18
Growth and yield of wheat and lupin crops at East Beverley.
Location: East Beverley Research Station.
To measure the growth and yield of wheat and lupin crops in …
Virus Disease Of Lupins., R. A. Jones
Virus Disease Of Lupins., R. A. Jones
Experimental Summaries - Plant Research
Cucumber mosaic virus.
Effects of different levels of infection in seed sown. - 90BA12, 90WH17
Location: Badgingarra and Wongan Hills.
Trials were done at Badgingarra and Wongan Hills in which plots were sown with seed of cv. Gungurru which transmitted CMV at rates of 5%, 1% and 0%. The plots were separated by 30 in wide cereal buffers.
Effect of plant density on BYMV spread into lupins - 90A6 and 90MT13
Location: Avondale and Mt Barker.
Following observations in 1989 (see 1989 experimental summary) on the predominant distribution of BYMV infected plants along the edges of lupin paddocks and into …
Virus Diseases Of Annual Medics., R. A. Jones, D. A. Nicholas, A. R. Baker, Simon Mckirdy, P. W. Skinner, C. Poole
Virus Diseases Of Annual Medics., R. A. Jones, D. A. Nicholas, A. R. Baker, Simon Mckirdy, P. W. Skinner, C. Poole
Experimental Summaries - Plant Research
Trial 87A19, 87MT50
Persistence of AMV in annual medic swards.
In 1990, the fourth year of this trial, although the medic plants were numerous the burr medic swards at Avondale grew poorly and weeds were widespread in the plots, especially long storkbill, flatweed and grasses. Poor growth was due to nodulation failure caused by low soil pH (5.3 in water). Hardly any medic plants were left in the Zodiac medic plot at Avondale while a few remained at Mt. Barker.
Location: Avondale and Mt. Barker.
Trial 88A21
Effect of AMV on the productivity of burr medic swards after cropping, regeneration …
Field Pea Agronomy., G. H. Walton, T. R. Trent
Field Pea Agronomy., G. H. Walton, T. R. Trent
Experimental Summaries - Plant Research
Trial 90M64
Site and variety effect on ovule abortion.
Location: Merredin Research Station CSIRO lease block.
To understand the causes of ovule abortion in field peas.
Trial 90M65
Response to seeding rates of peas with different plant architecture.
Location: Merredin Research Station, paddock 8CW3
To compare the yield responses of different pea types to seeding rates.
Trial 90A26
Nitrogen fixation in field pea.
Location: Avondale Research Station, paddock 1C
To compare the growth, N-fixation and yield of 'nodulating' crossbred material against the commercial cultivars of Dundale, Alma, Wirrega and Dinku.
Trial 90A18
Chickpea germplasm introductions.
Location: Avondale Research Station, paddock …
Grain Legume Species Evaluation., M. Seymour
Grain Legume Species Evaluation., M. Seymour
Experimental Summaries - Plant Research
Trial 90ES19, 90ES22
Grain legume species evaluation.
Location: Mt. Ridley.
To evaluate the response of 6 grain legume species over a range of environments and soil types.
Factors Affecting Lupin Crop Establishment., K. Mccarthy, R. Delane
Factors Affecting Lupin Crop Establishment., K. Mccarthy, R. Delane
Experimental Summaries - Plant Research
Trial 90EC20, 90GE86, 90GE87, 90GE88, 90TS20, 90BA58
Effect of seed size on lupin establishment, dry weight and seed yield.
Location: East Chapman Research Station, Wooree, Allanooka, Binnu, Morawa District Agricultural High School, Badgingarra Research Station New Block.
Experiments were sown in a randomized block design with double banked plots. Plots 25 m * 1.4 m were sown with cone seeders (disc undercarriages). Three seed sources were used Badgingarra (BRS), Speechly (Casuarinas) and Cobley (Walkaway East) - see table below. Grading (G) was done using the BRS airforced gravity table. The graded (G) fraction was compared to the ungraded (UG) fraction …
Brome Grass Population Dynamics In Relation To Control Systems, A. H. Cheam
Brome Grass Population Dynamics In Relation To Control Systems, A. H. Cheam
Experimental Summaries - Plant Research
Developing crop rotation systems for controlling brome grass.
Over the last four years the population dynamics of brome grass in various crop and pasture rotation systems have been monitored with the following aims.
To identify the level of control of brome grass under various rotation systems, so that farmers can be advised on the degree of infestation likely to be encountered when using a particular system.
To design the best control to reduce quickly the anticipated large seed population of brome grass in the soil.
To determine whether the persistence of brome grass is related more to survivors shedding seeds …
Crop Tolerance To Herbicides., D. Bowran
Crop Tolerance To Herbicides., D. Bowran
Experimental Summaries - Plant Research
1. Tolerance of New Cereal Varieties to Current Herbicides EX 5506 Trial Nos: 90AL41, 90EC36, 90EB45, 90KA130, 90M85, 90NA100
2. Tolerance of Current Cereal Varieties to New Herbicides EX 5506 Trial Nos: 90M86, 90EC35, 90N74
3. Metribuzin Tolerance of Cereal Varieties EX 5507 Trial Nos: 90EC37
4. Lupin Tolerance to Herbicides EX 5508 Trial Nos: 90EC34, 90EB44
5. Pea Tolerance to Herbicides EX 5509 Trial Nos: 90KA131, 89KA64
6. Pasture Legume Tolerance to Herbicides EX 64522 Trial Nos: 90KA132,
Use Of Soil Water Measurements To Assist Crop Management In Low Rainfall Areas., S. Mckeague, M. Perry, D. Tennant
Use Of Soil Water Measurements To Assist Crop Management In Low Rainfall Areas., S. Mckeague, M. Perry, D. Tennant
Experimental Summaries - Plant Research
Trial 90M9
Trial summary.
Location: Merredin Research Station.
90M9 was established as part of the long term monitoring system to obtain base information on water use from several different soils. A simple rotation experiment was established in T3 on the Merredin Research Station.
Trial 89ME32
Rowspacing summary.
Location: Merredin Research Station.
89ME32 was monitored as part of the long term monitoring system. Previous to 1990 two years of continued measurements had been done on the same soil type. Located on the CSIRO lease block above the Merredin Research Station on Crook's property.
Trial 87M71
Heavyload rowspacing summary.
Location: Merredin Research …
Ecology And Control Of Doublegee., F. D. Panetta
Ecology And Control Of Doublegee., F. D. Panetta
Experimental Summaries - Plant Research
Trial 88WH47
Control of doublegee in pasture.
Location: Wongan Hills.
To assess the effects of repeated pre-emergence and post - emergence applications of herbicides upon survival and seed production by doublegee. To measure the effects of herbicides upon pasture composition and the sizes of doublegee seed banks.
Trial 89MC2, 89WH7, 89EC1
Simulated invasion by doublegee.
Location: Manjimup, Wongan Hills and East Chapman.
In spite of the significance of weed invasion to the overall problem of weed management, almost nothing is known about factors which influence invasion. The aim of this study was to assess the relative importance of seed number …
Doublegee Control In Grain Legume., D. J. Gilbey
Doublegee Control In Grain Legume., D. J. Gilbey
Experimental Summaries - Plant Research
Trial 90A14, 90C43. 90WH69
Doublgee control in lupins.
Location: Avondale Research Station, Chapman Research Station, Wongan Hills Research Station,
To study the contribution of
a) shallow pre seeding cultivation
b) high initial simazine application on tolerant varieties
c) post seeding replacement application of simazine for doublegee control in lupins.
Trial 90NO
Broadleaf weed control in peas - post emergence.
Location: York.
To study the effect of several post emergence herbicides on peas and lupins.
Trial 89NO63, 89NO64
Doublegee control peas - pre- emergence.
Location; York
To study the effect of pre emergence herbicides applied to field peas, on weeds and …
Weed Control On The South Coast., J. H. Moore
Weed Control On The South Coast., J. H. Moore
Experimental Summaries - Plant Research
Trial 90A141
Barley variety tolerance to herbicides.
Location: Gairdner river.
To determine the tolerance of five barley varieties to 19 herbicides and mixtures.
Trial 90AL43
Herbicides for erodium control in serradella.
Location: North Woogenilup.
To determine the efficacy and phytotoxicity of a range of herbicides at varying rates, on erodium in a first year serradella pasture.
Trial 90AL44
Silvergrass control in pasture.
Location: Cheynes Beach Road.
To determine the efficacy of simazine and gramoxone, either tankmixed or individually at varying rates, on silver grass in a clover based pasture.
Trial 90AL45
Pattersons curse control.
To determine which herbicides and at …
Weed Control In Cereals And Pastures Including Declared Plants., J. Peirce, B. J. Rayner
Weed Control In Cereals And Pastures Including Declared Plants., J. Peirce, B. J. Rayner
Experimental Summaries - Plant Research
Trial 90C49
Grass and broad leaved weed control in direct sown crops.
Location: Chapman Valley Research Station.
The low rate of sprayseed with diuron was not as effective on the grasses. It may indicate some antagonism within the mix as the same rate of sprayseed with metribuzin did not cause any drop in grass control. The addition of 2, 4-D amine may have boosted the mixes activity on capeweed as the sprayseed metribuzin mix was not very good on capeweed.
Trial 90EB37
Grass and broad leaved weed control in direct sown crops.
Location: East Beverley Annex.
Part of the trial …
Grain Legume Adaptation To Soil Type, R. J. French
Grain Legume Adaptation To Soil Type, R. J. French
Experimental Summaries - Plant Research
Trial 90ME8, 9 and 10
Location: Bencubbin.
90ME8. Deep loamy sand. pH(CaC12) = 4.9 at surface and 3.7 at 50 cm.
90ME9. Sand over clay at 25-30 cm. pH(CaC12) = 5.7 at surface and 8.3 at 50 cm. 90ME10. Sandy loam over clay at 15 cm. pH(CaC12) = 5.5 at surface and 8.4 at 50 cm
Trial 90ME11 and 13
Location: Totadgin.
90ME11. Deep loamy sand. pH (CaC12) = 4.5 at surface and 3.9 at 50 cm. 90ME13. Loamy sand over sandy clay at 10 cm. pH (CaC12) = not yet available due to instrument difficulties.
Trial 90ME14, 15 and …
Murex Medic Field Evaluation., D. J. Gillespie, D. R. Mcclements, D. S. Francis
Murex Medic Field Evaluation., D. J. Gillespie, D. R. Mcclements, D. S. Francis
Experimental Summaries - Plant Research
Trials: 90GE113, 90MO62, 90WH87, 90ME72, 90NO115, 90A24, 90AB17, 90AL35
Locations: Geraldton, New Norcia, Wongan Hills, Merredin, Southern Brook, Avondale, Katanning, Tenderden.
The selection SEP29.1 was outstanding for both dry matter production and seed yield over a wide range of sites varying in both rainfall and soil type. On the basis of these trials, six lines have been selected for further evaluation in 1991.
They are: SEP29.1 SEP26.2.7 GRC69 GRC87.1 87F01.28 87FB2.36
Trials 90A25 and 90NO116
Redlegged earthmite field experiments.
Very low levels of redlegged earthmite and only minor damage to test varieties was recorded in this trial. Damage ratings were …
Role Of Assimilate Partition And Biomass Productivity In Wheat Yield Improvement., K. H.M. Siddique
Role Of Assimilate Partition And Biomass Productivity In Wheat Yield Improvement., K. H.M. Siddique
Experimental Summaries - Plant Research
Trial 90WH75
A. Ear:stem ratios in parental genotypes.
Earlier studies have established the importance of ear:stem ratio in determining the harvest index and potential yield of wheat cultivars (Siddique et al. 1989; Siddique and Whan, 1990). Much of the earlier work was concentrated mainly on recommended high yielding cultivars and some old cultivars. It is important to evaluate a wide range of parental materials for ear:stem ratios, before embarking on a breeding programme on ear:stem ratios. The main aim of this study was to assess ear:stem ratios in a wide range of parental genotypes.
B. Evaluation of breeding populations for …
Barley Development Experiment., K. J. Young
Barley Development Experiment., K. J. Young
Experimental Summaries - Plant Research
Trial 88ES1
Mechanisms controlling development in barley.
Location: Melijinup Field Station.
A range of barley varieties have been assessed for their level of adaptation to a range of sowing dates across the cereal growing region of W.A. This study aims to determine the mechanisms controlling development in cultivars which represent the range of development responses available. The relative importance of photoperiod and vernalisation response and inherent earliness will be determined for each variety.