Earth Sciences Commons^™

Summary Of Rhibozium Field Experiments In 1988, J G. Howieson

Experimental Summaries - Plant Research

87M11, 87H12, 88KA77, 88ME97, 88GE32, 88ME98, 88GE33A, 88GE33B, 88KA86, 88ME86.

Title, aim, background, treatments, tables, results, discussion, conclusions.

Tolerance Of New Cereal Varieties To Current Herbicides., D Bowran

Experimental Summaries - Plant Research

Trial 88EB26

While this site had a low population of weeds no yield increases were apparent. Few variety differeces were apparent at this site, though Hoegrass + Glean reduced yield of Crabook significantly.

Trial 88EC27

Few crop effects were experienced at this site. The major effect was due to variable fertility in replicates 3 and 4 and this resulted in the somewhat uyp and down nature for the Glean, Logran and hoegrass results.

Trial 88SC32

This site had a major problem with soil acidity and only triticale and oats grew satisfactorily. Barley was strongly influenced by the acidity and many …

Tolerance Of Recommended Cereal Varieties Of New Herbcides, David Bowran

Experimental Summaries - Plant Research

88EC28, 88SC31, 88N73.

Lupin Variety Tolerance To Herbicides, D Bowran, R Watson

Experimental Summaries - Plant Research

Trial 88EC31

This site received a basal treatment of 1.5 L of simazine/ha prior to seeding. Due to a heavy stubble load lupin seed was dropped onto the surface and lightly incorporated.

High rates of Simazine were better tolerated by Gungurru 75A/260 and CE2/435. The highest rate of Brodal reduced yields in all varieties except Gungurru.

Trial 88EB27

This site was severely infested with aphids and bean mosaic virus such that the varieties Illyarrie and Danja had up to 60% plant death by anthesis. Other varieties were affected but to a lesser extent.

Pasture Cultivar Comparison On Acid Wodjil Soil - Large Plots., Bradley Nutt, M. K. Laslett

Experimental Summaries - Plant Research

Trial 88TS64

Location: Latham

To evaluate the effect of various legume pasture cultivars on pasture production on acid wodjil soils.

Dryland Pasture Legume Programme, C. K. Revell, G. Croker, J. Simmons, L. Heinrich

Experimental Summaries - Plant Research

1. Medic variety evaluation

a. Row Evaluation - 88ME122 - Merredin.
This method of assessment was used to test a range of new medic material originating from the South Australian Department of Agriculture.

b. Evaluation of burr medics on Morrel soils. - 88ME84 - Nokaning.

c. Evaluation of burr medics on Whitegum soils. 88ME85 - North Kellerberrin.

d. Evaluation of Santiago in low rainfall areas - 88ME86 - Mukinbudin.

e. Selection of early maturing M. murex. 88SC30 - Merredin.

f. Medic species evaluation - large plots. 88NO88 - Tammin.

g. Medic species evaluation - large plots. 85M43 - Merredin Research …

Lucerne Herbicides (Tolerance), R Hurst

Experimental Summaries - Plant Research

To determine the phytotoxicity of various herbicides on established Lucerne pasture and their efficacy on the various weed species present.

Experimental Summary 1988., R Loughman, G Thomas, G Cusack, R Hulakjo, R E. Wilson, T N. Khan

Experimental Summaries - Plant Research

1. Disease complexes in wheat field screening trials.
2. Glasshouse screening for wheat leaf disease resistance
3. Effect of phosphate, stand density and Rovral on Pleiochaeta setosa in lupins.
4. Genotype and Rovral for Pleiochaeta setosa in lupins.
5. Control of Septoria in early sown wheat.
6. Controlling Pyrenophora graminea leaf stripe in barley.
7. Effect of environment on leaf stripe in barley
8. Unusual seed quality problems.

Herbicide Residues, T Piper

Experimental Summaries - Plant Research

Trial Nos. 88SG28, 88SG29.

Pea growth following sulphonyl urea herbicide use,

Trial Nos. 88SG30, 88SG31, 88LG68, 88LG69, 88LG70

Medic regeneration following the use of the herbicide Glean.

Trial No. 88PE74

Herbicide resistant weeds, Cranes ryegrass response to Hoegrass.

Trial No. 88MO51

Timing of applications of Sertin to Hoegrass resistant ryegrass Timing of applications of Sertin to Hoegrass resistant ryegrass.

Control Of Peas And Lupins In Wheat, J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87A29

Lupins were easier to kill than peas.

Glean applied pre-sowing gave very poor control of both peas and lupins.

The treatment using higher rates of 2,4-D amine in diuron mix also caused lower yields.

The Tordon 242 treatment appeared to cause some yield depression.

Disease And Insect Resistance; Murex Medic Evaluation; Legume Species Phasic Development, D J. Gillespie

Experimental Summaries - Plant Research

A summary of the performance of the control varieties (four replications) is shown in Table 3. A summary of the root rot ratings for some varieties showing a range of root rot susceptibility to all four pathogens is given in Table 4. Plant weights were recorded for all varieties tested against the three pathogens in the Western Australian experiments. Results for 12 of the 60 varieties are shown in Table 5. Murex medic evaluation. 86MT56 (Mount Barker), Gravelly loam pH 5.2 (water). 86NA46 (Darken) Loamy sand pH 5.4 86M037 (Regans Ford) Fine red sand pH 5.8 All sites were established …

Effect Of Different Chemical Treatments On Capeweed Control And Crop Yield., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87WH60

Control of capweed was obtained using post-emergence in-crop herbicides. Good control was on most of the treatments applied before seeding.

Most products showed good ryegrass control are not usually effective, assume some other factor operating. Treatment usually associated with good ryegrass control have higher ryegrass densities than the treatments using herbicides with only broadleaved variety.

Although large reductions in density of silvergrass were obtained none was significantly better than the unsprayed. Some treatments particularly those favouring grass dominance allowed silvergrass density to build up.

Bromegrass appears to be very sensitive to competition from capeweed. Where there was high …

The Ecology Of Skeleton Weed In Western Australia. Survival And Reproduction Of Wild Radish Populations, F. D. Panetta

Experimental Summaries - Plant Research

1.1 Skeleton weed demographic studies (84BA17)

To determine potential growth rates of skeleton weed populations on contrasting soil types.

2.1 Wild radish demography in lupin crops (87GE86) - the results are missing in the report please see in supplementary content

Control Of Peas And Lupins In Oats, J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87A30

All lupin treatments satisfactory.

Treaments 4, 8 and 9, ie Dicamba 500 ml and both treatments with diuron + 2,4-D amine would not control peas sufficiently to prevent rejection of line of oats. Peas are more difficult to control.

Saffrom Thistle, Seed Set Control, J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87ME119 - Saffron thistle, seed set control.

Trial 87TS38 - Saffron thistle control (seed set)

Trial 87JE42 - Seed set control in Saffron thistle.

All treatments had some measure of reducing seed production. Best control was obtained by applying chemicals just at or prior to flowering.

Control Of Wild Statice (Limonium Sinuatum) In Pasture., B. Kimber, R. Ramm

Experimental Summaries - Plant Research

Trial 87LG64

Wild Statice is a prolific seeder. Glean + diuron treatments, which were not included in trial gave good control, as did the farmer's treatment using Tribunil followed by heavy grazing. Later applications may be more effective because they may prevent seed formation for that year and also prevent the plant from recovering from spraying, as apparently with the early spraying.

Most chemical treatments would cause damage to broadleaved pasture.

Topsoil Displacement Methods For Crop Establishment. (Wheat And Barley), J. H. Moore, G. R. Dean

Experimental Summaries - Plant Research

Trial No. 87AL28.

1. To create a reduced disease situation around the crop seed by placing surface soil from the seed row into the inter row zone.

2. to provide a more wettable, less weedy, less acidic environment for cereal seed by placing surface soil from the seed row into the inter row zone.

3. To improve seedling establishment and growth by packing the seeding rows only.

History Effects On Wheat Response., J. H. Moore, G. R. Dean

Experimental Summaries - Plant Research

Trial 85AL42

To determine the effects of tillage, sowing density, and time of planting of Osprey and Aroona on the pest and disease incidence, early growth and yield.

The Tolerance Of Legumes To Broadleaf Herbicides., P. Stewart, L. Mann

Experimental Summaries - Plant Research

Trial 87KA52

The control of broadleaf weeds in leguminous pasture is of major concern because of the ability of these weeds to compete strongly with the leguminous plants. The presence of broadleaf weeds in pasture reduces the pastures nutritional value as well as total nitrogen fixation. There are many herbicides which are available to control broadleaf weeds, but most of these are registered for use in cereals. The amount of tolerance that leguminous pasture plants show to many of these herbicides and herbicide mixes is not known.

The experiments were designed to screen a large number of herbicides for legume …

Phenological And Reproductive Development Of The Four Major Grass Species, P. Stewart, L. Mann

Experimental Summaries - Plant Research

Trial 87KA51

The decision of when to spray is one of the major difficulties encountered when spraytopping grassy pasture for seed set control. Previous work has shown the general herbicide application timing window for the major grasses, but within this window, the amount of seed set control achieved can still be poor. Obviously timing within this window needs to be more rigorously defined. The fundamental question we need to answer is; when do the target grasses begin to produce viable seed in relation to their phenological development and in relation to other grass species? If we know this, then herbicide …

Effects Of Residue Levels Of Simazine On Wheat Growth, And Possible Synergism By Glean., Terry Piper, Patrick Pigott

Experimental Summaries - Plant Research

Trial 87PE36

A previous field test 86N33 had suggested that an apparent simazine residue affect on wheat growth might be exacerbated by Glean. This trial was carried out to further test the herbicide combination.

Glean Use On Drier Alkaline Soils, Terry Piper, Patrick Piggott

Experimental Summaries - Plant Research

Trial 86SG25 - Salmon Gums Research Station

There was no apparent evidence of chlorsulfuron carryover at either site, although the medic stand was visually assessed as thinned on 19/8/1987. In the absence of grazing pressure however, the remaining plants compensated by 25/9/1987.

Trial 87WH64 : The effects of low levels of Glean on lupins, in the presence of Hoegrass or Fusilade. Wongan Hills Research Station

This trial is a duplicate of 86WH53 and the results can be considered together.

Statistical analysis has shown a very highly significant effect of Glean on lupin growth in 1987, and on seed yield in …

Post Emergence Weed Control In Lupins., R. Madin, J. Buckley

Experimental Summaries - Plant Research

As a general assessment in can be said that Tigrex is a safe and efficient herbicide for control of radish in wheat. Brodal alone was generally unsatisfactory for radish control. While Diuron + Brodal was safe and efficient, Ally and Brodal should not be used together. Diuron + MCPA gave poorer control than one would normally expect.
87WH67

Control Of Prickly Saltwort (Salsola Kali) In Pasture., G. Fleay, R. Ramm

Experimental Summaries - Plant Research

Trial 87LG65

Glean post-em @ 10 and 15 g/ha gave good control.

A later trial gave good control with Garlon 4800 or 2,4-D amine when sheep grazed the weed after treatment. Considerable pasture damage would be done with all chemicals during the growing season.

Isoproturon Evaluation - Timing Of Application On Efficacy And Crop Damage., R. Madin, J. Buckley

Experimental Summaries - Plant Research

The trial was effectively a tolerance trial. Best overall weed control was achieved with Glean and the higher rates of Isoproturon which in turn gave best control as a pre-plant, incorporated treatment.
87A23, 87WH54

Manipulation Of The Soil Seed Reserves Of Bromus Diandrus And B. Rigidus By Enhancing The Breakdown In Seed Dormancy., A H. Cheam

Experimental Summaries - Plant Research

Location: South Perth Field Plots

Previous studies on the seed bank of Bromus diandrus indicated that shallow burial of newly shed seeds enhanced the breakdown in seed dormancy over the summer period. To bury the Bromus seeds one practical approach is to introduce sheep into the paddock.
This study is a repeat of the previous work but included B. rigidus, another species of Bromus, that is commonly ground growing in association with B. diandrus.
Location: South Perth Field Plots.

Wild Oat Control With Hoegrass With And Without Oil, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Trial 87NO08
All treatments except Combine + Oil yielded significantly better than the control. Control of wild oats with Grasp was superior to many other treatments and this was reflected in the yield.

Trial 87N009
All treatments yielded significantly better than the control however there was no difference between herbicides, rates of use or additives. The exception being 0.75 L Hoegrass +WA which yielded significantly less than Grasp + oil.

Radish Control In Lupins - Brodal., D J. Gilbey

Experimental Summaries - Plant Research

To study the effect of Brodal on lupins and radish.
87GE84, 87TS35, 87MO52, 87NO91, 86MO33.

Control Of Doublegee In Sub. Clover And Medic Pastures., P. Stewart, L. Mann

Experimental Summaries - Plant Research

Trial 87ME61, 87ME68, 87WH49, 87ES39, 87NO80(B), 87NO80, 87WH67.

Doublegees in pasture are a major concern of many farmers in most of the agricultural areas in Western Australia. In pasture, doublegees tend to compete strongly the first year after crop and then decline in subsequent years. When cropped, doublegees again appear in large numbers. Unfortunately, the WADA recommendation for doublegee control in pasture of Tribunil at 850 g/ha is now very expensive at $17/ha. A possible alternative is 2,4-D amine, but medics are very sensitive to this. 2,4-DB is another recommendation, but this tends to have low efficacy against doublegees and …

Tolerance Of Cereal Varieties To Hoegrass + Oil, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Almost invariably, Hoegrass applied to wheat and barley varieties reduced crop vigour assessed ten weeks after spraying.
87A34(1)