Physical Sciences and Mathematics Commons^™

Rapeseed, Oilseed Phenology, Linseed And Sunflower Trial, A G. Mckay

Experimental Summaries - Plant Research

Nitrogen x time of sowing, two rapeseed varieties – 81AL21, 81BR2. Rapeseed establishment trial – 81AL47. Rapeseed harvesting methods – 81MT48. Shattering differences among rapeseed lines - 81MT49. Estimated pre-treatment pod shattering losses.

Oilseed phenology – 81MT47, 81WH57, 81A48, 81BA53, 81C37, 81E34. Comment: 81C37- severely infested with wild radish - not hqrvested. 81E34- early insect damage - not harvested. 81A48- yield data not available. 81MT47- yield potential of site reduced by waterlogging.

Kerb on rapeseed and linseed – 81GL6.

Sunflower agronomy trial – 80AL89.

Organic Matter As A Source Of Nitrogen., A Reincke

Experimental Summaries - Plant Research

Contents 1.0 The effects of seeding clover at three rates on three soil types - 81GH1 1.1 Effect on dry matter of tops and roots, and their nitrogen contents. 1.2 Effect on mineral nitrogen, yield and nitrogen uptake. 2.0 The effect of organic matter and time on plant growth - 81GH2 3.0 Seeding rates of clover - 80WH5 3.1 Over summer losses. 3.2 Effect on mineral nitrogen and yield. 4.0 Pasture species/seeding rate trials. 4.1 81GE4 - Dry matter yields and root production. 4.2 81GE2 and 81M04 - Dry matter yields. 5.0 The effect of organic matter, rate of addition, …

1981 Plant Viruses, G D. Mclean, J Sandow, T N. Khan, P. A. Portmann, R Mclean, M Grimm

Experimental Summaries - Plant Research

1, Clover viruses - 81HA6, 81MA9, 81BR14, 81BY12, 81BH5, 81AL38, 81ES39 OBJECTIVES: To determine the extent of the 'Dinninup virus' problem (sub. clover mottle). To further assess the incidence of red leaf virus to determine the incidence of bean yellow mosaic virus. To note the incidence of sub. clover stunt virus. A. BYDV: Survey of incidence - 81BU1, 81BU2, 81BR11, 81BR12, 81MA6, 81MA7, 81AL31, 81AL32, 81JE14, 81JE15, 81KA21, 81KA22, 81NA28, 81N031, 81ES38, 81E26. 2. Barley yellow dwarf virus. BYDV: Genotype x insecticide studies - 81MN14, 81MT29, 81E28, 81MN14. BYDV: differences amongst barley genotypes - 81C19, 81WH31, 81BA30. BYDV: Resistance and …

Loose Smut Of Barley. Sub-Clover Root Rot. Rapeseed Diseases., M. J. Barbetti

Experimental Summaries - Plant Research

Loose smut of barley. Fungicidal control of loose smut in barley – 81MT31, 81NA29. Sub-clover root rot. Fungicidal control of pythium sp – 81AL37, 81BU3. Rapeseed diseases. 1. Rapeseed varieties/Lancelin blackleg strain – 81MO24. 2. Rapeseed varieties/Sclerotinia disease – 81MT32. 3. White leaf spot and grey stem of rapeseed – 81MT33.

Growth Regulator Trials. Part 1, M W. Perry, R N. Weir

Experimental Summaries - Plant Research

This summary covers 1981 trials on chlormequat plant growth regulant (formulated as Cycocel 750A or Halloween), ECO organic seed dressing and a range of organic foliar sprays. Rates and times of application of chlormequat on wheat. 81A22, 81BA3, 81Cl8, 81E25, 81M22, 81MT2, 81N4, 81SG36, 81WH4. Effects of chlormequat on wheat varieties (S4 trials). 81A6, 81BA7, 81C6, 81E6, 81M9, 81M13, 81MT9, 81N10, 81SG26, 81WH19. Trials comparing organic seed treatments, organic foliar sprays and plant growth regulators. 81WH61, 81LG34, 81LG48, 81ME27a, 81ME276, 81TS39, 81ES51, 81ES52, 81ES53, 81ES54, 81NA57, 81N4A, 81MT2A, 81TS38A. H. McCashney, Cadoux Un-numbered, Newdegate Research Station.

Pasture Trials At Esperance, M Da Bolland

Experimental Summaries - Plant Research

Introduction. Most of the 1981 data viz seed yield results, and hardseed data, has not yet been completely processed, and thus only some of the data can be presented in this summary. Section i: Medic species trials – 80SG39, 80SG23, 80SG24, 80ES65(a), 80ES21 (a). Section ii: Lucerne variety trials – 81ES28, 81ES25, 81ES29, 81ES30, 81ES31.

Minimum Tillage, Stubble Management, Deep Ripping, Newland Clearing, Residual Chemicals, R J. Jarvis

Experimental Summaries - Plant Research

A/ Long term Minimum Tillage Investigations (i) Continuous Cropping Sites - 77A16, 77WH17, 77M13, 78M25, 77E18, 77MT15, 78BA42 (ii) Rotational Sites - 77A43, 77WH88, 77M56, 77E52, 77MT51. B/ Minimum Tillage Investigations Including - Time of seeding Cultivars and varieties. Depth of cultivation. Depth of seeding. Nitrogen rates - 81WH8, 81N5, 81NA31, 81NA32, 81WH3, 81A2, 81M45, 81M46, 81GE24, 81N29, 81NA40, 81M24, 81M25, 81MO10, 81MO11, 81MO12. C/ Stubble Management Techniques - 79WH6, 79M7. Stubble Trials by Other Researchers - 78WH3, 78C3, 78M2, 81TS36. D/ Deep Ripping - 80A44, 77WH17, 81NO3, 81NO4, 80NO46, 81NA10, 81NA11, 79MO19, 81NO2, 81M45, 81MO39. 81M45, 81M45, 81ES58 ,81ES57, …

Dieback Breakthrough, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

No abstract provided.

Wind Erosion In The Jerramungup Area 1980-1981, Bryan J. Goddard, M G. Humphry, D J. Carter

Resource management technical reports

An investigation of the wind erosion problem at Jerramungup was conducted by on-farm survey and Landsat interpretation from September to November 1981. Sandblasting and wind erosion were estimated to have seriousloy affected some 44,000 ha in 1980 and over 64,000 ha in 1981. The 1981 damage estimate is conservative, because a much greater area of pasture land was affected by erosion in May-July but achieved vegetative cover by later winter.

Barley Disease, Scald, Spot Type Net Blotch, Powdery Mildew, Leaf Diseases, Double Cropping, Resistance Of Cvt Barley, T N. Khan

Experimental Summaries - Plant Research

I. Barley disease survey and an unidentified disorder on forrest barley. II. Scald: crop loss assessment – 81BA20, 81A17, 81MT23, 81WH30, 81A17, 81BA20, 81MT23, 81WH30, III. Scald: epidemics in simulated populations segregating for scald resistance – 81BA22, 81MT25, 81BA22, 81MT25. IV. Scald: reactions in single plant and hill plots – 81MT24, 81MT21, 81BA21, V. Spot type net blotch: crop loss assessment – 81C17. VI. Net blotch: effect of grazing on infection levels – 81A20. VII. Powdery mildew: crop loss assessment – 81PE5. VIII. Value of whole plot scores in assessing leaf diseases. IX. Disease and yield in simulated double cropping …

Doublegee Seed Dormancy. Lupins -Weed Control,Herbicides, New Products, D J. Gilbey

Experimental Summaries - Plant Research

Doublegee seed longevity x depth - 75WH66, 76C9, 76KA8. Grass control in dry sown lupins – 81A46, 81GE21, 81TS33. Broadleaf weed control in dry sown lupins – 81TS34, 81A47. Early post-emergence weed control – 81GE20. Early post-emergence weed control - lupins - 81TS32, 81A45. Post-emergence grass control in lupins. Post-emergence grass control in lupins None of the mixtures of Barban with Hoegrass and Matavin controlled the main target, Bromegrass. No significant differences due to treatments were detected in grain yields except at Avondale where annual ryegrass was the main grass weed which was controlled readily by the Hoegrass treatments as …

Long Term Rotation Trials., I Rowland.

Experimental Summaries - Plant Research

Long term rotation trials. 66M29/2083EX, 67Cl3/2332EX , 67N4/2333EX, 68E5/2474EX , 68SG5/2475EX , 73SG16. Lupins: Wheat Rotation. 79GE36/3288EX, 79GE37/3288E, 80TS3/3288EX, 73SG16/3229EX Continuous Cropping with Nitrogenous Fertiliser. 80NA6

Legume Seed Inoculation, D. L. Chatel

Experimental Summaries - Plant Research

Medic inoculation experiments – 81ME6, 81GE5. Inoculation trials were conducted at Holleton (81ME6) and Canna (81GE5).The major objectives were: 1. To test the field effectiveness of new strains of Rhizobium meliloti and to compare them with standard strains. 2. To initiate trials aimed at examining the performance of R. meliloti as long term colonisers of mildly acid soils. These trials are the first in a programme aimed at looking at the feasibility of developing acid tolerant strains for large areas of acid soil which are not suitable for growing subterranean clover. The 1981 trials will provide a basis for comparison …

Summary Of Results Of Field Experiments., M L. Poole, A R. Thompson

Experimental Summaries - Plant Research

The aim of these experiments was to determine the relationship between bromegrass and ryegrass densities and their effects on wheat yields and in one case lupin yield 81 BA 45, Competition between bromegrass, ryegrass and wheat. 81 KA 28, Competition between bromegrass, ryegrass and wheat. 81 ME 35, Competition between bromegrass, ryegrass and wheat 81 TS 28, Competition between bromegrass, ryegrass and wheat. 81 WH 48, Competition between bromegrass, ryegrass and wheat. 81 NA 30, Competition between bromegrass, ryegrass and wheat. 81 MT 42, Abandoned due to severe waterlogging and disease. The wheat failed. The weeds grew magnificently. 81 MO …

Grass Control In Pastures., C W. Thorn

Experimental Summaries - Plant Research

Crop Yields after Pasture Manipulation in 1980. Effect of Grass Control on Pasture Production. Effect of Grass Control on Animal Production. Pasture Density Effects and Composition on Soil Nitrogen. The Effect of Kerb (R) on Rapeseed, Linseed and Barley Grass. 80M041, 80M040, 80AB2, 81A23, 81 A188, 81Ba2, 81 N3, 81 N2, 81 A11 81N21, 81Ka1, 81Ka2, 81 Na3, 81NO5, 81MO1

Grain Legume Agronomy Programme, G Walton

Experimental Summaries - Plant Research

Lupin agronomy, series 1 - growth factor interactions. To evaluate the relative influence that various growth factors exert on crop yield. Lupin agronomy, series 2 - harvest index response to density. To establish whether the harvest index of the plants at maximum crop yield density remains constant over a range of environmental conditions and whether differences exist between cultivars. Lupin agronomy - nutrition. To compare the grain yield response to potash rates. Grain legumes for wheatbelt rotations. To compare the soil fertility after one year growth of different legume species. In the 1981 experiments, Derrimut field pea yielded well, outyielding …

Bulletin 3929 - Irrigation In Western Australia, K S. Cole

Bulletins - 3000 - 3999

Irrigation is essential in many parts of the world to produce essential food and profitable cash crops. Generally, those areas of land with less than 360 mm of rain spread over a distinct wet season of several months cannot grow crops for food or cash on rainfall alone. Then irrigation becomes necessary unless some peculiarity such as an oasis exists.

State Of The Fisheries Report 1979, Department Of Fisheries And Wildlife, Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia has maintained its position as the top fishing State. The catch in Western Australia of fish, crustaceans and molluscs in 1978-79 was worth $91 million to the fishermen, which is 33 per cent of the total value for Australia.

Sorrel - Effects Of Soil Nutrients, Dock – Control, Lupins - Residual Dicamba. Peas - Herbicide Screening, Rape - Herbicide Tolerance, Ryegrass - Effect On Wheat Yield, ‘Round Up’ - Drift Test, Artichokes - Herbicide Screening., John Moore

Experimental Summaries - Plant Research

Sorrel - effects of soil nutrients - 80KA39, 80KA40, Dock – control - 80AL74, 80AL76. Herbicides for Spray Graze of Dock in Clover Pasture. J. Tuffley, Albany. Herbicide mixtures for Dock in Clover - R. Pugh, Narrikup. Lupins - residual dicamba - 80MT44. Spray graze with cattle - 80AL80 Peas - herbicide screening - 80AL77. Rape - herbicide tolerance - 80MT45. Ryegrass - effect on wheat yield - 79A32. ‘Round up’ - drift test - 80AL79. Artichokes - herbicide screening - C. Barone, Elliot Road, Wanneroo.

Report No 40 - Commercially Exploited Vacsular Plants Native In Western Australia: Census, Atlas And Preliminary Assessment Of Conservation Status, Barbara L. Rye, S. D. Hopper, L. E. Watson

Fisheries Research Reports

A census and atlas is provided of 1 119 native Western Australian plant species which were commercially exploited during 1977-79 in the cut plant, nursery or seed trades. The exploited species are concentrated in the vicinities of Perth and Albany, the two matin centres for the wildflower industry. Preliminary assessments of the conservation status of the exploited species are provided. Approximately r200 species are regarded as being rare, geographically or poorly collected, and further studies are recommended for these species to determine whether they are in danger of overexploitation.

Fisheries Report No 39 - The Wildlife Of The Proposed Toolonga Nature Reserve, Shark Bay Shire, Western Australia, A. A. Burbidge, P. J. Fuller, K. Cashin

Fisheries Research Reports

Following a Cabinet endorsed recommendation by the Environmental Protection Authority in 1975, an area of vacant Crown Zand (the Toolonga Area) was examined during April and September, 1978.

The geology, soils and vegetation of the area are described and annotated lists of mammals, birds, amphibians and reptiles are presented. A small part of the area lies in the South West Botanical Province (Irwin District) but most is in the Eremaean Botanical Province (Carnarvon District). The vertebrate fauna is a mixture of south-western, Shark Bay and arid zone species, but the last predominate.

The Toolonga Area provides an opportunity to protect …

Land Capability Study Of (Sandy) Soils, North West Of The Ivanhoe Plains, Kununurra, W.A, Jim Dixon, W F. Holman

Land resources series

This survey was concducted at the request of Colonial Sugar Refineries as a co-operative effort involving the West Australian State Government Departments of Agriculture and Lands and Surveys. C.S.R. are investigating the feasibility of sugar cane production in the Ord River Project Irrigation Area. Part of the project could involve cane production on currently undeveloped sandy soils held under pastoral lease. The object of developing sandy soils is twofold:- i) the sandy soils will require overhead irrigation and it will be possible to mix industrial wastes with the irrigation waters for disposal; ( ii) sandy soils should be trafficable sooner …

Wheat Potential Yield Trials 1980, M Perry, A Brown, R Weir, D Tennant, E Harvey, L Linton

Experimental Summaries - Plant Research

80C34, 80TS9, 80BA4, 80WH8, 80KA7, 80N20, 80E41.

Part I. Take-All Of Cereals, Rhizoctonia Bare Patch. Part Ii. Minimum Tillage Trials 1980, G C. Macnish

Experimental Summaries - Plant Research

A. Take-all of cereals. Take-all survey. Effect of nitrogen sources on take-all - 76LG25 (N = 50 kg/ha), 77E4 (N = 25 kg/ha), 77MT19 (N = 45 kg/ha), 77MT18 (N = 45 kg/ha) Oats (1977 Results).

Take-all and the economics of Agras No. 1 (1979 Results) – 79BA30 (N = 10 to 90), 79ES14 (N = 10 to 90), 79LG4 (N = 10 to 90).

Take-all, row spacing and rates of Agras No. 1 - 79ES41 (1979 Results).

Take-all and paddock grass history - 68NA1, 80NA58, 80NA59.

Take-all following cleaning crops - 79El2.

Take-all build-up on new land rotation - …

Septoria Diseases, A. G. P. Brown

Experimental Summaries - Plant Research

Effect of stubble and seed infection on S. nodorum at Badgingarra. Fungicide timing on Septoria control.

Double cropping wheat was simulated by spreading stubble fragments collected from an adjoining paddock at 30 g/m2. Infected seed was from a 1979 sowing at Badgingarra, clean seed was pedigree Gamenya ex Merredin. Treatments were thus:- 1. Clean seed, no stubble. 2. Clean seed plus stubble. 3. Infected seed, no stubble. 4. Infected seed plus stubble. Plots were 10 x 25 m separated by equal sized barley buffers.

Deep Ripping Trial, Wongan Hills Research Station/ Avondale Research Station. Rates Of Ryegrass And Rates Of N On Wheat Yield, M. L. Poole

Experimental Summaries - Plant Research

80WH52, 80A44, 80WH53. 80M41, 80M42.

The Effect Of Soil Acidity On Crop And Pasture Production, W Porter, W Cox, R Klemm

Experimental Summaries - Plant Research

Contents: 1. Summary. 2. Details of research. 2.1 Problem definition glasshouse trial. 2 (a) Vegetative yield affected by topsoil acidity. 2 (b) Root growth in acid subsoil . 2.2 Field Trials. (a) Wheat - Grain yield - Vegetative Growth. (b) Clover. (c) Acidification of soils from the use of nitrogen fertilisers 3. Appendices - trial data. Summary: 1. Problem defining glasshouse trials on soil from 12 sites were conducted in summer/autumn. Results showed that the components of soil acidity affecting wheat growth... 2. The lime and molybdenum requirements of wheat and clover were examined at the sites from which soil …

Grass Control And Minimum Tillage Herbicides, J. E. Holmes

Experimental Summaries - Plant Research

Bromegrass. Wheat loss caused by bromegrass - 80WH47. Herbicides for bromegrass control - 80WH48. Bromegrass control - spraytop - 79NO41. Control of bromegrass – spraytop - 79BA59. Brome and barley grass control - 80NA62. Wild oats. Wild oat control - comparison of commercial treatments – 80NO44. Wild oat control - minimum tillage system - high challenge SITE - 80NO45. Ryegrass. Ryegrass control. Hoegrass effect of rates x volumes x times of application - 80SG41. Barley grass. Barley grass control in wheat - 80SG40. Pasture manipulation. Pasture manipulation - grass reduction - 79A31. Pasture manipulation - rates of herbicide - 80AB3. …

Legume Seed Inoculation, D. L. Chatel

Experimental Summaries - Plant Research

List of experiments 1. 8ONA9A - The response of inoculated and non-inoculated field peas to fertilizer nitrogen on land not previously sown to peas. NARROGIN. 2. 8ONA9B - The response of inoculated and non-inoculated field peas to fertilizer nitrogen on land previously sown to peas. 3. 79GES8 - The performance of different strains of Rhizobium meliloti on different medics. TENINDEWA (Second year).

Pasture Species Research, C. M. Francis

Experimental Summaries - Plant Research

EARLY MATURING MEDICS Early maturing Libyan lines with some tolerance to bluegreen aphids were sown at 6 sites, five in Western Australia and one in South Australia. Seed yield and hard seed data are currently being collated. Maturity and vigour was assessed at all sites and many of the new introductions are earlier than cv. Harbinger and its equal in vegetative growth. A much larger range (300 lines) was grown at Medina and will be introduced into country sites next year.

Kabatiella Research. In cooperation with Dr. D.L. Chatel, screening of introductions for resistance to Kabatiella caulivora continued in 1980. …