Physical Sciences and Mathematics Commons^™

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 …

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, …

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 …

The Prairie Naturalist Volume 12, Numbers 3 And 4. September–December 1980

The Prairie Naturalist

THE FLORA AND SANDHILLS PRAIRIE COMMUNITIES OF ARAPAHO PRAIRIE, ARTHUR COUNTY, NEBRASKA ▪ K. H. Keeler, A. T. Harrison and L. S. Vescio

USE OF ULTRASONIC SOUND TO ESTIMATE BODY FAT DEPOTS IN THE MALLARD ▪ G. A. Baldassarre, R. J. Whyte and E. G. Bolen

NORTHERN MOCKINGBIRD BREEDING IN NORTH DAKOTA ▪ D. Child, J. Fontaine, T. Gatz, M. Johnson and J. Oswald

SPRING ARRIVAL OF BIRDS AT WOODWORTH, NORTH DAKOTA ▪ K. F. Higgins, L. M. Kirsch, and J. M. Callow

HYBRIDIZATION AND TAXONOMIC STATUS OF GREATER PRAIRIE CHICKENS AND SHARP-TAILED GROUSE (HYBRIDIZATION IN GROUSE) ▪ D. W. …

The Prairie Naturalist Volume 12, Number 2. June 1980

The Prairie Naturalist

COMPOSITION OF BEAVER CACHES ON THE TONGUE RIVER IN MONTANA ▪ J. E. Swenson and S. J. Knapp

GRAY PARTRIDGE WINTER MOVEMENTS AND HABITAT USE IN NORTH DAKOTA ▪ J. W. Schulz

ANNOTATED CHECKLIST OF MAMMALS OF NEBRASKA ▪ J. K. Jones, Jr. and J. R. Choate

OBSERVATIONS OF SEVERAL ARCTIC GULLS IN NORTH DAKOTA ▪ C. A. Faanes and T. A. Gatz

WINTER FOOD HABITS OF NEBRASKA BOBCATS (Felis rufus) C. J Mahan

NOTE

The Meadow Jumping Mouse in Southeastern Montana ▪ W. L. Matthews

The Prairie Naturalist Volume 12, Number 1. March, 1980

The Prairie Naturalist

RESIDUAL SEEDS AS POTENTIAL SPRING WATERFOWL FOODS IN SMALL, MAN-MADE IMPOUNDMENTS ▪ G. A. Baldassarre

NOTES ON THE NATURAL HISTORY OF BATS FROM BADLANDS NATIONAL MONUMENT, SOUTH DAKOTA ▪ J. P. Farney and J. K. Jones, Jr.

PRAIRIE CHICKEN DOMINATED SHARP-TAILED GROUSE INTERACTION ▪ R. A. Schmidt

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA— 1979 ▪ R. N. Randall

THIRD NESTING OF CATTLE EGRET IN NORTH DAKOTA ▪ R. A. Schmidt

FIRST BREEDING RECORDS OF THE WHITE-FACED IBIS IN NORTH DAKOTA ▪ R. A. Schmidt

NOTES

Pinon Jay in North Dakota ▪ R. N Randall, J. Swanick and O. Swanick

Gray-crowned …

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.

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.

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. …

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. …

Organic Matter As A Source Of Nitrogen, A Reincke

Experimental Summaries - Plant Research

Contents: Available Nitrogen. Relationship between available soil nitrogen and plant growth - 80GH5. The value of organic matter (>2m) to available soil nitrogen - 67C13 & 67N4. The effect of cropping systems on organic matter - 67C13. The effect of organic matter on plant growth. Incorporating wheat and clover (tops/roots/ burrs) at different rates - 80GH2. Seeding of clover at different rates - 80GH6. Incubation of organic matter - 80GH4. Germination problems after organic matter - 80GH8. Pre-Seeding Application of Nitrogen on cereals - 80A2. Lupin/oat mixture trials - 79MT30, 79BA31, . Mount Barker. Badgingarra. The effect of clover …

Regional Trials At Esperance, M Da Bolland

Experimental Summaries - Plant Research

Trials on Salmon Gums Research Station. The trials on the research station are aimed at making the maximum use of the rainfall for cropping. On the heavy Kumarl soils the trials include fallow trials, furrow seeding trials, seeding rate and time of seeding trials, and trials assessing methods of getting the crops in as early as possible; these trials being repeated on fallow and ley Kumarl soil. On the sandy surfaced soils the trials assess methods of sowing the crops as early as possible, and checking if there are different nitrogen requirements for cereals sown by minimum tillage or mechanical …

Lupin Agronomy / Field Pea Agronomy / Alternative Grain Legume Comparisons / Cereal/Legume Mixtures, G H. Walton

Experimental Summaries - Plant Research

1. Lupin agronomy. 1.1 Crop density x weed population – 80GE7, 80GE8, 80GE37, 80GE38, 80GE39, 80TS7, 80TS8. 1.2 Lupin variety x density – 80BA36, 80C25, 80MT34. 1 .3 Variety x density x time of planting – 80MO6, 80MA5. 2. Field pea agronomy. 2 .1 Variety x density – 80NA13. 3. Alternative grain legume comparisons. 3.1 Soil fertility improvement – 79BR2. 3.2 Grain legume comparison – 80BR6, 80ES18, 80ES19, 80GE9, 80JE1, 80JE2, 80NA12, 80NO3. 3.3 Faba bean potential yield – 80MT2. 4. Cereal/legume mixtures. 4.1 Cereal/lupin mix for hay and grain – 80AL11, 80BR4, 4.2 Oats/pea mix for hay and grain …

1979 Trial - Doublegee Seed Dormancy, Lupins Weed Control, Doublegee Control In Pasture, D J. Gilbey

Experimental Summaries - Plant Research

74C7 Doublegee seed longevity X cultivation, Chapman Research Station 75WH65 Doublegee seed longevity X cultivation, Wongan Hills Research Station 75WH66 Doublegee seed longevity X depth, Wongan Hills Research Station 76C9 Doublegee seed longevity X depth, Chapman Research Station 76KA8 Doublegee seed longevity X depth, Katanning Townsite 74A4 Effect of double cropping, shallow dry cultivation and spraying pasture on viable doublegee seed, Avondale Research Station 79C24 Lupin tolerance to herbicides - Illyarrie, Chapman Research Station 79C25 Lupin tolerance to herbicides – Unicrop, Chapman Research Station 79C26 Lupin tolerance to herbicides – Ultra, Chapman Research Station 79C27 Lupin tolerance to herbicides – …

Plant Viruses, G D. Mclean, T. N. Khan, J Sandow

Experimental Summaries - Plant Research

1. Barley Yellow Dwarf Virus: G.D. McLean, T.N. Khan, J. Sandow. 2. Clover Viruses: G.D. McLean, J. Sandow. BYDV: Survey of incidence - Locations: Esperance (80ES53) sown June 27, 1980 Williams (80NA35) sown June 19, 1980 Kojonup (80KA28) sown June 19, 1980 Bokerup (80MA11) sown July 8, 1980 Jerramungup (80JE14) sown June 26, 1980 Albany (80AL30) sown July 3, 1980 Busselton (80BU3) sown July 8, 1980 Bridgetown (80BR19) sown June s, 1980 Northam (80N026) sown June 16, 1980 All these plots were located at the cultivar variety trial sites. Sites varied considerably in BYDV incidence as well as in rate …

(1) Powdery Mildew Control Of Grapes With Fungicides. (2) Black Spot And Downy Mildew Of Processing Peas: 80al32. (3) Facial Eczema Investigation., A Bokor

Experimental Summaries - Plant Research

Powdery mildew control of grapes with fungicides. Location: Mount Barker Research Station. Black spot and downy mildew of processing peas - 80AL32. Facial eczema investigation. Facial eczema is a recognised myco-toxic disease of grazing stock in New Zealand. It is caused by a fungus Pithomyces chartarum growing on dead litter part of the pasture. The disease has become recognised as a risk to sheep in the Albany Region following reported losses in 1978. A pasture paddock at Cape Riche was sampled weekly by the Animal Division to determine fluctuations in spore numbers of P. chartarum. Comments: The fungus could readily …

Sulphur Nutrition Of Pastures And Crops Phosphorus And Potassium Nutrition Of Pastures On Deep Sands In The High Rainfall Areas, J S. Yeates, M F. Clarke

Experimental Summaries - Plant Research

CONTENTS A. SULPHUR 1. Sources, rates, time of application of sulphur to legume pastures (high rainfall) - 80AL1, 80AL4, 80MA1, 80KE1. 2. Sulphur soil test on pastures (high rainfall) - 80AL12, 80AL13, 80AL14, 80BY2, 80KE2. 3. Sulphur rundown on sulphur absorbing soils of the high rainfall areas - 80BY1. 4. Sulphur requirements of pasture in low rainfall areas - 80JE17, 80M020. 5. Residual value of 1979 applied sulphur. Rates of fine gypsum applied 1980 - 79AL2, 79AL18, 79AL22, 79AL23, 79AL25, 79AL41, 78BA8 B, 79BY3, 79BY4, 79HA2, 79KE3, 79KE7, 79M020. 6. Sulphur requirements of wheat - 80JE16, 80M09. B. PHOSPHORUS 7. …

General Phosphorus Trials, R J. Lunt, J. W. Bowden

Experimental Summaries - Plant Research

The trial programme of past years was considerably reduced in size because of the absence of J.W. Bowden (Research Officer). Further, extensive drought conditions in the W.A. agricultural areas wiped out several trials.

INDEX Super x stocking rate trial 66M30. Maintenance P x S trials 65Al, 65C5, 65N5, 69WH15. Residual Value of Phosphorus 75LG26, 77NA4, 78BA7, 79N05, 79JE8 & 9.

Times and Methods of Application 80M7, 8OM6, 80WH9, 80MO7.

1. Doublegee Seed Dormancy. 2. Lupins - Weed Control. 3. Lupins - Minimum Tillage Weed Control. 4. Doublegee Control In Pasture. 5. Crabgrass Control In Seedling In Lucerne. 6. Crabgrass Control In Vines., D J. Gilbey

Experimental Summaries - Plant Research

Doublegee seed longevity x cultivation - 75WH65. Doublegee seed longevity x depth - 76C9, 76KA8, 75WH66. Lupin variety tolerance to herbicides - 80C28-33, 80GE45-50, 80MO24-29, 80TS33-38. Tolerance of yandee lupins to herbicides - 80A38. Post emergence weed control in lupins - 80M034. Sprayseed - simazine combinations for minimum tillage lupins – 80MO21, 80TS29, 80GE40. Doublegee control in pasture – 80MO33, 80NO36. Crabgrass control in seedling lucerne - 80KE7. Crabgrass control in vines - 80SR1.