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- Peel Inlet (W.A.) (2)
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- Plant water relations (2)
- Swan Coastal Plain (W.A.) (2)
- Tillage (2)
- Water use efficiency (2)
- Weeds (2)
- Wind erosion (2)
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- 18 (1)
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- Experimental Summaries - Plant Research (66)
- Journal of the Department of Agriculture, Western Australia, Series 4 (19)
- Journal of the Arkansas Academy of Science (5)
- Masters Theses & Specialist Projects (4)
- Agronomy Notes (2)
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- Department of Agronomy and Horticulture: Faculty Publications (2)
- Division of Plant Research : Technical Report Series (2)
- Robert Mikkelsen (2)
- Andrew W. Lenssen (1)
- Biological Sciences Theses & Dissertations (1)
- Bulletins 4000 - (1)
- Kansas Agricultural Experiment Station Research Reports (1)
- Office of the Dean (CAFES) Scholarship (1)
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Articles 1 - 30 of 111
Full-Text Articles in Life Sciences
Can Genetically Engineered Crops Become Weeds?, Kathleen H. Keeler
Can Genetically Engineered Crops Become Weeds?, Kathleen H. Keeler
School of Biological Sciences: Faculty Publications
There are significant differences if the distribution of weedy characteristics among weeds, normal plants, and crops. The world’s most serious weeds possess on the average 10 or 11 of these characters, a random collection of British plants have an average seven of the traits, and crop plants only five. For the average crop to become as “weedy” as the average weed, it would need to acquire five weedy traits. Even using the unlikely assumption that those traits are single loci in which a dominant mutation would provide the weedy character, this would require the simultaneous acquisition of five gene substitutions. …
Stubble Losses Of Kentucky Soybeans, Larry J. Grabau, Todd W. Pfeiffer
Stubble Losses Of Kentucky Soybeans, Larry J. Grabau, Todd W. Pfeiffer
Agronomy Notes
Double crop soybeans in Kentucky tend to be shorter than plants from full season plantings. Since lowest pod height is related to plant height, double crop soybeans may be subject to greater harvest losses due to pods remaining below the level at which the combine header is operated. While it would be possible to lower the header closer to the soil to pick up some of those pods, that would slow down harvest and increase the risk of picking up stones and other trash. Although the actual cutting heights used in Kentucky are not known, some producers use combines with …
Studies On The Giant Mealie Witchweed, Striga Forbesii Benth., In Zimbabwe, David Allen Knepper
Studies On The Giant Mealie Witchweed, Striga Forbesii Benth., In Zimbabwe, David Allen Knepper
Biological Sciences Theses & Dissertations
Of the seven species of Striga found in Zimbabwe, S. forbesii Benth. is currently the most destructive in terms of crop damage. Owing to its limited occurrence worldwide as a pest of crops, relatively little work has been done on this species.
Striga forbesii has been found to be a consistent problem on both maize and sorghum in the Hunter's Road District of KweKwe, Zimbabwe. Results of a pot study and field observations, indicate S. forbesii can successfully parasitize Urochloa panicoides Beauv., Sorghum arundinaceum (Desv.) Stapf, and Rottboellia cochinchinensis (L.) L.f., all of which are widespread weeds of arable land. …
A Comparison Of Chemical Composition & Fermentation Patterns Of Alternative Silages To Whole Plant Corn Silage, Susan Fox
Masters Theses & Specialist Projects
A comparison of the relationship of fermentation to chemical composition was made for forages which were wilted and ensiled at 35 to 45 percent dry matter. Trial I consisted of three forages ensiled in October, 1981: interseeded soybeans and grain sorghum. whole plant corn with added anhydrous ammonia, and whole plant corn with shelled corn added at a rate of 150 kg/t of fresh forage. Trial II consisted of two forages ensiled in 1982: interseeded soybeans and pearlmillet, and wheat. Temperatures of fermentation were collected, and chemical composition during the first 25 days of fermentation analyzed.
Production data were also …
Long Term Effects Of Direct Drilling And Conventional Cultivation On The Distribution Of Nutrients And Organic C In Soils Of South Western Australia, P F. White, R K. Belford, A D. Robson, N D. Delroy, R J. Jarvis
Long Term Effects Of Direct Drilling And Conventional Cultivation On The Distribution Of Nutrients And Organic C In Soils Of South Western Australia, P F. White, R K. Belford, A D. Robson, N D. Delroy, R J. Jarvis
Division of Plant Research : Technical Report Series
This experiment was part of a long term tillage trial designed to examine the effect of various tillage systems on the yield of wheat on a range of agricultural soils in Western Australia. A subset of results from the main experiment is presented here.This report describes the distribution of extractable P, extractable K, total N, organic C, and pH at 6 depths in the soil from 6 locations; Wongan Hills, Merredin (H) (calcic, red-brown earth), Avondale, Merredin (L) (acid, yellow earth), Esperance and Mt Barker. Three tillage systems (conventional cultivation, direct drilled with a combine, direct drilled with a triple …
The Effects Of Spacings & Cultivars On Biological Yields, Yields, Component Of Yield & Harvest Index Of Green Bush Snap Bean (Phaseolus Vulgaris L.), Widodo
Masters Theses & Specialist Projects
The effects of cultivars and plant spacings on biological yield, seed yield, seeds per pod, average seed weight, and harvest index of beans (Phaseolus vulgaris L.) were studied in 1987 and 1988. Two cultivars, 'Blue Lake 27' and 'Kentucky Wonder 125' and four plant spacings -- 7, 14, 21, and 28 cm, constituted eight treatments that were arranged in a split-plot with four replications. Each experimental unit or hill consisted of five plants -- four in the corners and one in the center of a square. Spacings treatment were established by varying the distance between the center plant …
Isolation & Characterization Of A Type I Topoisomerase From The Hypocotyls Of Etiolated Soybeans, Rick Dye
Isolation & Characterization Of A Type I Topoisomerase From The Hypocotyls Of Etiolated Soybeans, Rick Dye
Masters Theses & Specialist Projects
Topoisomerases are enzymes of critical biological significance. Despite this fact, little data specific to the topoisomerases of higher plants has been published. This research was undertaken to isolate and characterize a higher plant topoisomerase from soybean hypocotyls to further the understanding of the structure and function of these enzymes.
Nuclei were isolated from frozen hypocotyls of 4 day old etiolated soybeans by homogenization and centrifugation, then lysed by gentle stirring in the presence of 1.5 mM ammonium sulfate. The resultant extract was desalted and purified by column chromatography on DEAF sepharose, 5-200 sephacryl and CM cellulose. The components of the …
Effect Of Phosphorus Placement Methods On The Yield & Quality Of Tomatoes, Timothy Hambrick
Effect Of Phosphorus Placement Methods On The Yield & Quality Of Tomatoes, Timothy Hambrick
Masters Theses & Specialist Projects
Research was undertaken in the summer and fall of 1988 to determine the effect of phosphorus placed below, below and to the side, banded and incorporated, and broadcast on the yield and quality of tomatoes.
The results of the field study were not statistically significant due to high levels of available soil phosphorus. However, there were trends toward higher total yields, higher yield of number one grade tomatoes, and higher tissue phosphorus levels when phosphorus was placed in a concentrated zone or band as contrasted with the more popular broadcast method.
The effect of phosphorus placement in the greenhouse was …
Evalution Of Grain Legumes For Wheatbelt Rotations In Western Australia 1986 -1987, G H. Walton
Evalution Of Grain Legumes For Wheatbelt Rotations In Western Australia 1986 -1987, G H. Walton
Division of Plant Research : Technical Report Series
Conclusions about the geographic and climatic limitations to the economic production of some pulse species in Western Australia cannot be too definite after only two years of gathering data. The yield results confirm the superior adaptation of field pea and narrow-leaf lupin over the faba bean, chickpea, narbonne bean and lentil. In 1987, a relationship was found within specific crop cultivars / accessions, between seed yield and the spring (September + October) rainfall. It is expected that soil type will influence the yield response through variations in moisture retention capacity, fertility and root penetration. Any relationship between yield and environmental …
Some Effects Of Shifting To Conservation Tillage Systems For Intensive Production Of Corn And Soybean, Kenneth L. Wells, H. C. Vaught, David Heisterburg
Some Effects Of Shifting To Conservation Tillage Systems For Intensive Production Of Corn And Soybean, Kenneth L. Wells, H. C. Vaught, David Heisterburg
Agronomy Notes
About three-fourths of Kentucky's cropland base occurs on sloping land with some degree of erosion hazard. During the past decade, production of soybeans and corn increased rapidly in Kentucky, particularly on sloping land. This resulted in severe erosion on many farms, particularly in the "intensive grain producing counties. Much of this field erosion could be greatly reduced by developing a system for each field that would incorporate use of such agronomic practices as sod waterways, no-till planting, contour plowing, minimum tillage, strip cropping, double-cropping, winter cover crops, crop residue management and rotations. It is believed that the current acreage of …
Melamine/Urea And Oxamide Fertilization Of Kentucky Bluegrass, David J. Wehner, Dennis L. Martin
Melamine/Urea And Oxamide Fertilization Of Kentucky Bluegrass, David J. Wehner, Dennis L. Martin
Office of the Dean (CAFES) Scholarship
The commercial lawn care industry represents a large market for N sources. A formulated melamine (2,4,6-triamino-s-triazine) plus urea combination (MLU) (45% melamine by weight) and oxamide were evaluated for use by the lawn care industry by comparing turfgrass response from these fertilizers to that from urea, sulfur coated urea (SCU), ureaformaldehyde (Nitroform), and a non-fertilized check. Fertilizers were applied four times per year to field plots of Kentucky bluegrass (Poa pratensis L.) growing on a Flanagan silt loam (fine, montmorillonitic, mesic Aquic Argiudoll) at a rate of 49 kg N ha-1 per application. Color ratings and clipping weights …
Soil Science Research Report - 1989
Soil Science Research Report - 1989
Soil Science Research Reports
Tillage Experiments
Increasing Nitrogen Use Efficiency by Dryland Sorghum Under Conventional and No-tillage Systems ............ 1
The Effect of Phosphorus Rate, Method of Application, and Tillage on Soybean Yield in Nebraska ............ 6
Tillage, Rotation and N Rate Effects on Dryland Com Production and Nitrogen Uptake in Northeastern Nebraska ............ 15
Fertilizer
Effect of Lime Application on Soil pH and Com Yield in Holt County ............ 22
Evaluation of the Influence of Starter Fertilizer on Com and Grain Sorghum, 1989 ............ 24
Fertilizer P Distribution and Wheat Yield ............ 26
Field Evaluation to Determine Best Fluid Starter Fertilizer for Com …
The Development Of An Efficient Lupin Harvesting Front, E D. Blanchard
The Development Of An Efficient Lupin Harvesting Front, E D. Blanchard
Journal of the Department of Agriculture, Western Australia, Series 4
Harvest losses represent a significant reduction in lupin production and farm productivity.
Since 1984, the Department's Farm Machinery Research and Liaison Unit at the Dryland Research Institute has studied the lupin harvesting operation to improve its mechanical efficiency. An experimental and a prototype harvesting front were built and tested in the field. Guidlines for efficient lupin harvesting were produced, and commercial modifications developed.
Interaction Of Rhizoctonia Root Rot On Wheat With Post Emergence Herbicides, W Macleod
Interaction Of Rhizoctonia Root Rot On Wheat With Post Emergence Herbicides, W Macleod
Experimental Summaries - Plant Research
Interaction of Rhizoctonia root rot on wheat with post emergence herbicides, 88E30. Location, aim, treatment, method, results, table1. Take-all inoculum levels in a ryegrass sward after treatment with hoegrass. 88MD30. Location, aim, treatment, method, results, Interaction of Pleiochaeta root rot on lupins with Simazine®, 88ME64, 88WH335, 88ME64. Location, aim, treatment, method, results, tables 1 to 8.
Tolerance Of Lupins To Simazine, K E. Oliver
Tolerance Of Lupins To Simazine, K E. Oliver
Experimental Summaries - Plant Research
Tolerance of lupins to triazine herbicides, 89GL21, 89GL24. Application of atrazine post emergence of the soil, 89GL22, 89GL25. Application of atrazine post emergence to the foliage, 89GL23, 89GL26. Trials with mutated lupin population, 89WH72, 89MC32.
Long-Term Rotation Trials., I Rowland, W Hawkins
Long-Term Rotation Trials., I Rowland, W Hawkins
Experimental Summaries - Plant Research
Paddock 5AE on Merredin research station, 66M29, 67C13, 67N4, 68E5, 68SG5, 73SG16, 88EB2.
Serradella Variety Evaluation., C. K. Revell
Serradella Variety Evaluation., C. K. Revell
Experimental Summaries - Plant Research
Trial 89ME83, 89ME84, 88ME88 and 87M62
Serradella variety trial.
Korbelka, Mukinbudin, Woolocutty, South Carrabin annexe.
Trial 88ME89
Serradella/Grass mixtures for acidic sandplain soils.
North Bodallin.
Trial 87M92
Management of Serradella pastures.
South Carrabin annexe.
Trial 87M64
Establishing Serradella under a cereal crop.
South Carrabin annexe.
Rotational Experiments., C. K. Revell
Rotational Experiments., C. K. Revell
Experimental Summaries - Plant Research
Trial 82M47
a. Subterranean clover.
Subterranean clover rotation trial
Merredin Research Station.
Trial 88ME83
b. Santiago burr medic
Rotational systems for burr medic
Merredin.
Trial 89N29
Rotational systems for burr medic.
Newdegate Research Station.
Replicated Single Row Evaluation., C. M. Saunders
Replicated Single Row Evaluation., C. M. Saunders
Experimental Summaries - Plant Research
Trial 89AB12
Great Southern Agricultural Institute - Paddock B15
This trial was of similar design to the single row evaluation, except four replications and pesticide treatments were also included.
However the trial had to be abandoned due to severe phytotoxic responses seen in the medics due to repeated spraying of 'Lorsban' (used at recommended rates).
Intended to repeat this work in 1990, bulk seed where possible and to eventually assess these lines, under such conditions, in large plots.
Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt
Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89NA61
Location: Duranillin
In this site we would expect a very large response (40 to 50% ) to phosphorus.
History:
The site was chosen because of the patchy and poor pasture production. The poor areas tend to have more suckling clover than the good areas. The pasture was legume dominant.
Treatments were applied on April 16, 1989.
Diseases Caused By Nematodes., J M. Stanton
Diseases Caused By Nematodes., J M. Stanton
Experimental Summaries - Plant Research
Annual ryegrass toxicity roadside survey, 88PE99.
Location, aim, methods, sampled, results, comments.
Effect of benzimidazoles on ARGT, 88NA75
Location, aim, treatments, methods, results, table one.
Relationships between organisms involved in ARGT, 88KA103.
Location, aim, methods, results, comments, table two.
Sampling patterns for ARGT diagnosis, 88KA102.
Location, aim, methods, results, comments, table four.
Distribution of cereal cyst nematode, 88PE20.
Location, aim, methods, results, comments.
Hatching pattern of cereal cyst nematode, 88NO71, 88GE30.
Location, aim, methods, results, comments.
Sowing date and cereal cyst nematode, 88NO70.
Location, aim, treatments, methods, results, table three, figure one and two.
Tolerance Of Cereal Varieties To Herbicides, David Bowran, Neil Thomson
Tolerance Of Cereal Varieties To Herbicides, David Bowran, Neil Thomson
Experimental Summaries - Plant Research
Tolerance of current cereal varieties to new herbicides, 89EC21, 89N27, 89SC15. Tolerance of new cereal varieties to current herbicides, 89EB19, 89EC20, 89N28, 89SC16. Tolerance of wheat varieties to Metribuzin and Pendimethalin, 89EC22, 89WH58. Tolerance of wheat to herbicide tank mixes for grass and broadleaf weed control in cereals, 89WH86. Grasp efficacy and tolerance, 89C22, 89GE93. Tolerance of field peas to herbicides, 89KA64, 89M56. Tolerance of pasture legume varieties to herbicides, 89KA76. Crop establishment using residual herbicides for weed control, 89NA66.
Herbicide Residues, T Piper
Herbicide Residues, T Piper
Experimental Summaries - Plant Research
Pea growth following Sulphonyl urea herbicide, 88SG28, 88SG29. Medic regeneration following Sulphonyl urea herbicide, 88SG30, 88SG31, 88LG68, 88LG69, 88LG70.
The Biology Of Skeleton Weed In Western Australia, J Dodd
The Biology Of Skeleton Weed In Western Australia, J Dodd
Experimental Summaries - Plant Research
Effects of height of cutting on the rate of stem regrowth, 89ME116. Response of Gorteria to grazing, 88PE28. Biology of P. globifera in stubble paddocks, 89ME75, 89ME76. Comparative phenology of P. globifera suffruticosa, 89ME77. Establishment and spread of the leaf mining moth, Dialectica scalariella. 89PE8. Intensive monitoring of the leaf mining moth and Patersons curse at Muresk, 89NO65 - 89NO670.
Weed Control In Lupins With Simazine Topping Up, D J. Gilbey, R Klemm, B Roberts
Weed Control In Lupins With Simazine Topping Up, D J. Gilbey, R Klemm, B Roberts
Experimental Summaries - Plant Research
Weed control in Lupins with simazine “topping up”, 89GE62, 89TS40, 89NO59. Doublegee control in Lupins with Brodal plus simazine, 89GE63, 89TS41, 89NO60. Post emergence doublegee control in lupins, 89NO92, 89MO65. Doublegee control in peas, pre-emergence, 89TS47, 89MO38, 89M38, 89NO63. Doublegee control in peas, post-emergence, 89TS48, 89MO39, 89ME87, 89NO64.
Factors Affecting Lupin Crop Establishment In The Northern Agricultural Region Of Western Australia., K W. Mccarthy, A M. Doswell, R J. Delane, M W. Sweetingham
Factors Affecting Lupin Crop Establishment In The Northern Agricultural Region Of Western Australia., K W. Mccarthy, A M. Doswell, R J. Delane, M W. Sweetingham
Experimental Summaries - Plant Research
Lupin establishment, 89EC6. The effect of machine, depth of sowing, seed soil contact and herbicide incorporation on lupin establishment, 89GE8. The effect of phosphate application on lupin establishment, 89GE99. The effect of seeding technique, depth of sowing, seed soil contact and fungicide on lupin establishment on course sands, 89GE9. Integrated control strategy of Rhizoctonia hypocotyl root rot of lupins, 89GE11, 89GE12, 89GE12B, 89GE13, 89GE14. Strategies for lupin patch control, 89EC7 and 89GE15. The effect of seed size and sowing rate on lupin establishment, 89C1, 89GE6, 89GE7, 89EC5, 89BA34, 89TS49, 89GE10, 89EC4, 89GE4,
Canola Rapeseed, Rapeseed, Tillage., J D. Warren, R Tugwell, S Wiley
Canola Rapeseed, Rapeseed, Tillage., J D. Warren, R Tugwell, S Wiley
Experimental Summaries - Plant Research
Canola rapeseed. Assessment of early maturity Stage 2, lines. 89AB5, 89N38, 89EB31. Early maturity triazine resistance. 89AB6, 89N39, 89EB32. Stage 1 early maturity selections, 89AB8. Stage 2 Late maturity, 89MT43. Late maturity triazine resistance, 89MT44. Blackleg race trial, 89MT47. Interstate variety trials, 89MT45, 89ka70.
Lupin Agronomy For The South Coast, Mark Seymour
Lupin Agronomy For The South Coast, Mark Seymour
Experimental Summaries - Plant Research
Time of sowing x variety. Trials, 89E15, 89ES11, 89E42. Time of sowing x variety. Trials, 89E16, 89ES12. Seed rate x variety, trials 89ES8, 89ES9, 89ES10, 89JE2, 89JE3, 89AL7. Starter nitrogen, trials 89E20. Aphid control, trial 89E14. Deep placement of manganese and phosphorus, trials 89E43, 89E17.
Systems For Early Sowing Of Wheat In Low Rainfall Zones., N J. Kerr
Systems For Early Sowing Of Wheat In Low Rainfall Zones., N J. Kerr
Experimental Summaries - Plant Research
Background and early significance. Effect of sowing date and nitrogen fertilizer on wheat varieties in low rainfall areas, 89GE76, 89GE77, 89NM1, 89GE78, 89NM2, 89NM3, 89GE78. Tillage and sowing methods for early sowing of wheat in low rainfall areas, 89GE79. Aims, Background, Experimental details.
Medic Variety Evaluation., C. K. Revell
Medic Variety Evaluation., C. K. Revell
Experimental Summaries - Plant Research
Trial 89M57
Medic variety evaluation - rows.
Merredin Research Station (Paddock T5)
Trial 89ME71
Selection of early maturing M. murex.
Nokaning.
Trial 88ME86
Evaluation of Santiago in low rainfall areas.
Mukinbudin.
Trial 87M73
Medic variety evaluation - large plots.
Merredin Research Station.
Trial 86M65
M. polymorpha variety evaluation - large plots.
Merredin Research Station.
Trial 88ME84
Evaluation of burr medics on Morrel soils.
Nokaning.
Trial 88SC30
Selection of early maturing M. murex.
Merredin.