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A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam

Experimental Summaries - Plant Research

CONTENTS A. Inoculum of the Take-all-Fungus and the Prediction of Take-all 1. Inoculum from grass and wheat residues. a. Trial at Reichstein's, Esperance. b. Trial at Wallace's, Esperance. 2. Inoculum size and take-all. a. Inoculum fraction of a Jerramungup soil. b. Interaction of inoculum size with soil temperature. 3. Effect of various fertilizer treatment on inoculum - 79LG25. 4. Time of sampling and inoculum. a. Newdegate. b. Kulin. c. Badgingarra. 5. Take-all and Hypovirulent strains a. Newdegate - 78LG30. b. Esperance - 79E14.

1. Sub Clover Root Rot Resistance 2. Clover Cultivar Evaluation- High Rainfall Areas, D J. Gillespie

Experimental Summaries - Plant Research

77BU1 Seed and plant data 1979 high rainfall areas, Karridale 77D1 Seed and plant data 1979 high rainfall areas, Denmark (Dry site) 77D4 Seed and plant data 1979 high rainfall areas, Denmark (Wet site) 77ES31 Seed and plant data 1979 Esperance region, Dalyup 77ES33 Seed and plant data 1979 Esperance region, Mt Howick 79MA9 Dry matter production spring 1979, Northcliffe 79W4 Dry matter production spring 1979, Wokalup Research Station

Wheat Potential Yield Trials - 79ka17 D. Hall, Beaufort River - 79wh32 Wongan Hills Research Station, R N. Weir, D Tennant, A. G. P. Brown, M. W. Perry

Experimental Summaries - Plant Research

COMMENTS 1. No insect problems experienced and broadleaf weeds effectively controlled by spraying. Septoria· leaf spot incidence insufficient to affect yields. 2. Little effect of time of planting on either total dry matter or grain yield. Crop received about 70% of the average May-October rainfall with a very dry September-October. Perhaps the distribution of rainfall allowed a similar pattern of water use, and total water use by each planting time. 3. There is probably a significant effect of Nitrogen regime on grain yield. Osmocote (N3) consistently yielded more than either single (N1) or repeated (N2) dressings of Agran 34:0. The …

1979 Summary Of Experiments, T N. Khan

Experimental Summaries - Plant Research

79MT22 Mid season sown experiment, Mt Barker 79BA25 crop loss assessment trials, Badgingarra 79MT49 scoring system for leaf diseases, Mt Barker 79BA24 Inter-plot interference at various distances in Net Blotch, Badginarra Research Station 79WH17 Inter-plot interference at various distances in Net Blotch, Wongan Hills Research Station 79BA21 Inter-plot interference at various distances in Barley Scald, Badgingarra Research Station 79MT23 Inter-plot interference at various distances in Barley Scald, Mt Barker Research Station 79BA53 Scald nursery, Badgingarra 79BA54 Net Blotch nursery, Badgingarra 79WH52 Net Blotch nursery, Wongan Hills 79BA20 Crop loss assessment, Badgingarra Research Station 79BA22 Evaluating differences in field reaction of …

Low Cost Cereal Herbicides - Pasture Manipulation - Annual Ryegrass Toxicity - Herbicides For Direct Drilling - Hoegrass Application Methods - Annual Ryegrass Herbicides, J E. Holmes

Experimental Summaries - Plant Research

79N46 Possible cereal herbicides – low cost mixtures, Tincurrin 79MO52 Possible cereal herbicides – low cost mixtures, Bolgart 79KA46 Possible cereal herbicides – low cost mixtures, Katanning 79NA39 Pasture manipulation – barley grass control 79NO28 Pasture manipulation, Goomalling 79MO50 Pasture manipulation – grass reduction – examination of known systems, Moora 79AR47 Pasture manipulation – grass control and herbicide residues, South Sterlings 79BA57 Pasture manipulation – rates of herbicides, Badgingarra Research Station 79A31 Pasture manipulation – grass reduction, Avondale Research Station 79KA47 Spraytop – Graze – control of annual ryegrass toxicity, Katanning 79BA56 Herbicides for direct drilling, Badgingarra Research Station 79A30 …

Erosion Risks With High Stocking Rates At Kojonup Trial, Department Of Agriculture, Western Australia

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

A pasture grazing trial at Kojonup dramatically illustrated the effects of Cyclone Alby. Severe erosion was evident on the heavily stocked plots while the more lightly stocked plots showed little damage.

1979 Summary Of Experiments - Legume Seed Inoculation, D L. Chatel

Experimental Summaries - Plant Research

79NA4 The effect of Rogor on the response of field peas to inoculation, Narrogin 79ME3A The response of Nungarin subterranean clover to inoculation, Bodallin 79ME3B The response of Nungarin subterranean clover to inoculation, Gabbin 79ME3C The response of Nungarin subterranean clover to inoculation, Bodallin 79GE9 The response of Nungarin subterranean clover to inoculation, Tenindewa 79GE8 The performance of different strains of Rhizobium meliloti on different medics, Tenindewa 79GE10 The response of Nungarin subterranean clover, Swan medic and Gamenya wheat to lime and molybdenum (all hosts) and inoculation (legumes) on an acid soil, Pindar 79M07 The response of subterranean clover and …

Summary Of Experimental Results 1979 - Annual Rye Grass Toxicity, D L. Chatel

Experimental Summaries - Plant Research

79KA15 The susceptibility of grasses to yellow slime disease

79KA16 The effect of gall burial on gall and slime production by annual rye grass sown into land with a history of ryegrass toxicity The effect of bacterial galls on development of slime and galls on ryegrass inoculated with nematode galls

Summary Of 1979 Field Experiments, M L. Poole

Experimental Summaries - Plant Research

79WH50: Effect of time of planting x cultural systems x herbicides on wheat yields - Wongan Hills Research Station. 79M34: Effect of time of planting x cultural systems x herbicides on wheat yields – Merredin Research Station. 79C31: Effect of time of planting x cultural systems x herbicides on wheat yields - Chapman Research Station. 79WH58: Rates of ryegrass x rates of nitrogen on wheat Yield. 79WH57: Rates of CCC and rates of nitrogen on yield of Wheat.

Fallow Re-Assessment, D Tennant

Experimental Summaries - Plant Research

Fallow re-assessment. I. 72M29. Location - Merredin Research Station II. Other fallow results. As part of the fallow re-assessment project, a study was made of results from all trials done since the early 1920's which either compared fallow with non fallow or examined other aspects of fallowing. Analysis of these data has led to an update of some of the rainfall - soil water storage - yield relationships presented in previous reports. On the basis of these rainfall-yield relationships and of relevant rainfall statistics we can make an assessment of the probable value of fallow at different locations; Merredin; Chapman, …

1979 Pasture Species Investigations - High Rainfall Area, D A. Nicholas

Experimental Summaries - Plant Research

Contents. 1. Clover cultivar grazing trial - 68NA1 - N. Bannister. 2. Perennial versus annual grass grazing trial - 72MN5 - Manjimup Research Station. 3. Pasture types demonstration - 72D1 - Denmark Agricultural High School. 4. 76MT3 - Trikkala evaluation trial - Mt Barker Research Station - see also report of D.J. Gillespie and separate progress report. 5. Clover cultivar evaluation trials: 77AL22 - Wellstead. 77BU10 - Karridale. 77D5 - Denmark Research Station. 78BR16 - Darradup. 78BU15 - Jindong. 78DE1 - Tingledale. 78MN5 - Manjimup Research Station. 79BY6 - Waterloo. 79ES35 - North Merivale. 79ES36 - Mount Merivale. 79MA12 - …

Declared Plant Control & Total Vegetation Control, P A. Rutherford

Experimental Summaries - Plant Research

(A) Declared plant control. 1. Arum lily (Zantedeschia aethiopica). Chemical control of Arum Lily (Zantedeschia aethiopica). Properties: Prevelly Park, Margaret River (A), Wonnerup (B). (A) dense Arum Lily under shade from trees in Park reserve. (B) scattered Lily in clover pasture grazed by dairy cattle. 2. Blackberry (Rubus spp). 79AI60 - Evaluation of Roundup for blackberry control. Property - R. Wolfe, Bornholm. Herbicides for blackberry control. Property – G. Wright, Kent River. 79AL62 - Evaluations of “Krenite” for blackberry control. Property R.G. Ebbott, Bow Bridge. 3. Pennyroyal (Mentha pulegium) 79AP64 - Herbicide screening on Pennyroyal (Mentha pulegium). D. Wells, Denmark. …

Relationship Of Weed Control And Soil Ph To No-Tillage Corn Yields, J. J. Kells, C. E. Rieck, Robert L. Blevins, Charles H. Slack

Agronomy Notes

Atrazine and simazine are used for selective control of a broad spectrum of weeds in corn. Over 80% of the U.S. corn production is treated with one or the other of these two s-triazine herbicides. In Kentucky they are used annually on over 800,000 acres of corn, including over 200,000 acres of no-tillage corn. When added to the soil these compounds are ultimately degraded to non-phytotoxic compounds. The rate of degradation is dependent upon the physical, chemical, and biological properties of the soil. Although atrazine and simazine are chemically similar, simazine is considered to degrade slightly slower than atrazine after …

Plant Nutrient And Economic Value Of Animal Manures, S. R. Wilkinson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Animal manures have economic value as plant nutrient sources and as amendments for soils whose physical properties can be improved by adding organic matter. Their value as fertilizer per metric ton applied is generally inverse to their water and carbon contents. Plant nutrient concentrations in animal manures are highly variable, thereby introducing uncertainty into meeting plant nutrient needs for crop production. Where manure has been applied for several years, however, little or no additional fertilizer phosphorus (P) and potassium (K) are needed for crop production. Animal manures were ranked in decreasing order as to replacement fertilizer value (dollars) as follows: …

Proceedings Of The 6th Annual Meeting, Southern Soybean Disease Workers (March 13-15, 1979, Hot Springs, Arkansas): Healthy Beans, A Key To Profit

Southern Soybean Disease Workers: Conference Proceedings

Contents

Schedule, Committees, Officers

The Gold That Grows, John Stephens

IPM Program, Joe Good

The Role of the Ag Consultant - Dick Jensen

Seed Quality, Ron Hager

Nematode-Economic Threshold, Don Schmitt

Problems of Marketing Foliar Fungicides, Gordon Elliott and Nic Thomas

Results of Point System in Determining Application Time, Billy Moore

Disease Loss Report, R. V. Sturgeon

Seed Treatment Report, M. C. McDaniel

SSDW Financial Status Report, Sid Stephens

Update of FIFRA and RPAR, Curtis L. Mason

Needs and Effects of a Foliar Fungicide - B. C. Smale

The Effect of Bean Pod Mottle, Soybean Mosaic and Bean Yellow Mosaic …

A Computer Model For Evaluating Corn Harvesting, Handling, Drying And Storage Systems, Thomas C. Bridges, Otto J. Loewer Jr., John N. Walker, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Root Anatomy Of Fine Species Of Abronia From Southern California And Its Ecological Implications, Jan Webster

Theses Digitization Project

No abstract provided.

Lichens Of Arkansas I: A Summary Of Current Information, Jewel E. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

Relationship Of In Vitro Gonadotropin Binding To Bovine Testes And The Onset Of Spermatogenesis, B. D. Schanbacher

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Concentrations of luteinizing hormone (LH) and follicle stimulating hormone (FSH) were determined in serum of crossbred beef bulls during pubertal development. Serum LH ranged between .5 and 2.0 ng/ml with highest concentrations observed as 12 months of age. Serum FSH varied considerably among individuals but mean concentrations were within the normal range (50 to 100 ng/ml). Neither LH nor FSH increased at the time when testosterone increased or spermatogenesis entered meiosis.

Specific binding of ^{1 2 5} I-labeled human chorionic gonadotropin (hCG) and ^{1 2 5} I-labeled FSH to the bovine testis was demonstrated by autoradiographic localization techniques. Binding of …

A. Minimum Tillage Investigations. B. Evaluation Of Stubble Management Techniques, D Jasper

Experimental Summaries - Plant Research

77WH17 Continuous cropping site, Wongan Hills Research Station 77WH18 Rotational site, Wongan Hills Research Station 77M13 Heavy land continuous cropping site, Merredin Research Station 78M25 Light land continuous cropping site, Merredin Research Station 77M56 Rotational site, Merredin Research Station 77A16 Continuous cropping site, Avondale Research Station 77A43 Rotational site, Avondale Research Station 77E52 Rotational site, Esperance Downs Research Station 78BA42 Continuous Cropping Site, Badgingarra Research Station 77MT15 Continuous Cropping Site, Mt Barker Research Station 79WH6, Evaluation of stubble management practices, Wongan Hills Research Station 79M6 Heavy Land, Merredin Research Station 79M7 Light land, Merredin Research Station

Options For Machinery And Labour, A F. Herbert

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

Machinery is one of the highest costs in farming today. It is not unusual for capital investment in machinery to be 20 to 30 percent of the total investment in the farm.

On an annual basis, expenditure directly attributable to machinery can be 40 per cent or more.

This article cannon be a panacea for everyone to reduce machinery costs - each farm is different. But some of the issues might be of help.

Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow

Experimental Summaries - Plant Research

(1) Yield assessments have continued similar to those used in 1977 and 1978. Essentially, plants with symptoms typical of BYDV are marked in the early spring as well as a similar number without symptoms. Yield differences were obtained both for Clipper Barley and an oats variety. (2) Two pilot experiments using viruliferous aphids were carried out at Mount Barker (79MT20) and at South Perth · (79PE13). Both Rhopalosiphum padi and R. maidis were used. Infection at Mt Barker failed, and therefore no data is presented. The Perth experiment was planted on August 31, 1979. The original plan was to have …

Grain Crop Variety Trials Western Australia 1978-1979, H. M. Fisher, G. B. Crosbie

Grain and other field crops research reports

The regional crop variety testing programme conducted by the Western Australian Department of Agriculture covers the final two stages of a four stage process of evaluating locally produced crossbreds and introduced material comprising:-

Plant Breeder Trials

Stage 1: Initial small plot yield tests on early generation material - 1 to 3 sites. Stage 2: Small plot yield tests on selected material (F5 derived) - 3 to 4 sites.

Regional Testing Programme

Stage 3: Large scale preliminary trials - 9 to 10 sites. Stage 4: Large scale final yield trials - 40 to 50 sites.

The basis of the regional programme …

Summary Research Results 1979, G A. Pearce

Experimental Summaries - Plant Research

DPX4189 for weed control in wheat 79N27. Location - Toodyay. Herbicide mixtures for broadleaved weeds in wheat. Location - Toodyay. Diuron mixtures for broad leaf weeds in cereals. Location - "Glencoe" C/- P.O. Bindoon. Herbicides for early planting 79MO42. Location – N. Tonkin – Coomberdale. Broad leaf weeds in cereals 79MO45. Location - Miling (J. Lewis, Plympton). Herbicides for early planting 79LG27. Location – Karlgarin.

Long Term Rotation Trials, I Rowland

Experimental Summaries - Plant Research

Locality: 66M29, 67Cl3, 67N4, 68E5, 68SG5, 73SG16. Soil type, history, rainfall and wheat/lupin yields.

Contour Cultivation : Cheap Erosion Control, T R. Negus, B. Barrett

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

Although the benefits of contour cultivation are well recognised, it makes cultivation more difficult, particularly if the paddock is split by contour banks and grassed waterways. However, a comparison east of Pingelly indicates that contour cultivation is little more expensive or time-consuming than ordinary cultivation.

Experimental Summary 1979, J R. Peirce

Experimental Summaries - Plant Research

Contents 79ME28 Soursob (Oxalis caprae) control along Roadsides. 79NO30 A & B.

79NO29 Pre and post emergent applications of Diuron for soursob control in cereals.

79ME31 Post emergent control of soursob in cereals. 79NO39

79ME26 A & B Control of Matricaria (Pentzia sp.) in cereals.

79NO40 Dormancy of Cape Tulip (homeria sp.).

79NO38 Patersons curse (Echium plantagineum) Control in pastures. Afghan thistle (solanum hoplopetalum) Control in pastures. 79ME28 and 79N030 A & B Soursob Control Along Roadsides. Chemicals: Roundup 1, 2 and 3 1ha-1, Diuron 1, 2 and 3 1ha-1, Sencor TD 1, 2 and 3 kgha -1 ) applied …

Investigations Of Ryegrass Toxicity, B A. Stynes

Experimental Summaries - Plant Research

Development of toxicity in the field. Experiment – 79KA13. Location – C. Butterworth, Katanning. The effect of herbicides and growth regulants on gall development. Experiment – 79KA14. Location - C. Butterworth, Katanning. Effect of burning on the production of galls. Experiment – 79KA9. Location - L. Blight, Gnowangerup; K. Butterworth, Katanning; C. Hanna, Katanning; J. Shepherdson, Gnowangerup. Table 1 Previous land use and characteristics of fires at four farms where fields were burnt in autumn to reduce the level of toxicity of ryegrass in the subsequent spring pasture. Table 2 The numbers and relative proportions of galls retained in the …

Leaching Of An Acetanilide Herbicide, Cp55097 In Soil Columns, Regina K. Higgins

Masters Theses

The leachability of the acetanilide herbicide, CP55097 was determined using a soil column system. This herbicide, which is used as a preemergent against certain grasses and broadleaf weeds, was leached through four different soils (sandy clay, sandy loam, sandy clay loam and clay loam) using the following procedure. Plastic columns consisting of 8 rings (2 in. dia. x 1 in.) were assembled and their bottoms covered with cheesecloth. They were then filled with soil and prewetted with water to attain field capacity. Herbicide concentrations equalling 0, 1, 3, 6 lb/A were pipetted onto the soil surface and 0, 1, 2, …

Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing

Technical Bulletins

The agricultural potential of the Forrestania area appears at least equal to that of much of the settled eastern wheatbelt. The scrubplain soils of the Forrestania area have an average yield potential of at least 1 000 kg/ha wheat and carrying capacity of 1.8 to 3.7 sheep per hectare on improved pastures. The use of clover ley rotations would maintain these levels of potential yield. Partial crop failures caused by adverse seasonal conditions could be expected 10 years in every 100.