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Articles 811 - 840 of 939

Full-Text Articles in Genetics and Genomics

Biomass Of Food Available To Beavers On Five Minnesota Shrubs, Richard R. Buech, David J. Rugg Jan 1995

Biomass Of Food Available To Beavers On Five Minnesota Shrubs, Richard R. Buech, David J. Rugg

Aspen Bibliography

No abstract provided.


Proceedings Of A Symposium On Sustaining Rangeland Ecosystems, W. Daniel Edge, Sally L. Olson-Edge Aug 1994

Proceedings Of A Symposium On Sustaining Rangeland Ecosystems, W. Daniel Edge, Sally L. Olson-Edge

Aspen Bibliography

No abstract provided.


Comparative Mapping Of Arabidopsis Thaliana And Brassica Oleracea Chromosomes Reveals Islands Of Conserved Organization, Stanley P. Kowalski, Tien-Hung Lan, Kenneth A. Feldmann, Andrew H. Patterson Jan 1994

Comparative Mapping Of Arabidopsis Thaliana And Brassica Oleracea Chromosomes Reveals Islands Of Conserved Organization, Stanley P. Kowalski, Tien-Hung Lan, Kenneth A. Feldmann, Andrew H. Patterson

Law Faculty Scholarship

The chromosomes of Arabidopsis thaliana and Brassica oleracea have been extensively rearranged since the divergence of these species; however, conserved regions are evident. Eleven regions of conserved organization were detected, ranging from 3.7 to 49.6 cM in A. thaliana, spanning 158.2 cM (24.6%) of the A. thaliana genome, and 245 cM (29.9%) of the B. oleracea genome. At least 17 translocations and 9 inversions distinguish the genomes of A. thaliana and B. oleracea. In one case B. oleracea homoeologs show a common marker order, which is distinguished from the A. thaliana order by a rearrangement, indicating that the lineages of …


Sustaining Our Aspen Heritage Into The Twenty-First Century, Charles W. Cartwright, Denver P. Burns Jan 1994

Sustaining Our Aspen Heritage Into The Twenty-First Century, Charles W. Cartwright, Denver P. Burns

Aspen Bibliography

No abstract provided.


Population Regulation Of The Jackson Elk Herd, Bruce L. Smith Jan 1994

Population Regulation Of The Jackson Elk Herd, Bruce L. Smith

Aspen Bibliography

No abstract provided.


Important Pests Of Ornamental Aspen, Fred A. Baker, Karen Shotwell, Diane Alston, Sherman Thomson Jan 1993

Important Pests Of Ornamental Aspen, Fred A. Baker, Karen Shotwell, Diane Alston, Sherman Thomson

Aspen Bibliography

No abstract provided.


Cliff Lake Bench Research Natural Area: Problems Encountered In Monitoring Vegetation Change On Mountain Grasslands, Walter F. Mueggler Jan 1992

Cliff Lake Bench Research Natural Area: Problems Encountered In Monitoring Vegetation Change On Mountain Grasslands, Walter F. Mueggler

Aspen Bibliography

No abstract provided.


Armillaria Root Rot In The Canadian Prairie Provinces, K. I. Mallett Jan 1992

Armillaria Root Rot In The Canadian Prairie Provinces, K. I. Mallett

Aspen Bibliography

No abstract provided.


A Biosystematic Study Of Panus Conchatus (Basidiomycetes; Agaricales), James Edward Johnson Jan 1992

A Biosystematic Study Of Panus Conchatus (Basidiomycetes; Agaricales), James Edward Johnson

Masters Theses

As part of a biosystematic study of Panus conchatus (Bull.: Fr.) Fr., North American and European herbarium specimens from the Field Museum and the University of Michigan were examined and a description of the taxon prepared. Tissue and single spore isolates were obtained from basidiocarps collected in Illinois. Single and polyspore isolates were obtained from a collection made in Switzerland by R. H. Petersen. Culture mat analyses were completed on several media and the taxonomic value of cultural characters assessed. Based on this study, the identification of somatic cultures by cultural characteristics is unlikely. Single spore isolates from the Illinois …


The Australian Lupin Collection - Passport Data For Wild And Semi-Domesticated Accessions Introduced Into Australia To 1990, J. C. Clements, W. A. Cowling Oct 1990

The Australian Lupin Collection - Passport Data For Wild And Semi-Domesticated Accessions Introduced Into Australia To 1990, J. C. Clements, W. A. Cowling

Grain and other field crops published reports

This report contains passport (including collection site) data and Commonwealth Plant Introduction (CPI) numbers for all wild and semi-domesticated Lupinus accessions introduced into Australia to 1990 (a total of 1071 accessions with CPI numbers between 10650 and 122692). Scientists or plant breeders with an interest in the characteristics of wild lupins from certain natural environments, such as high soil pH or low rainfall, will find this information invaluable when they select accessions for their experiments. The majority of the accessions were introduced by Western Australian scientists following collecting missions in the Mediterranean region, and the remainder were donated from institutions …


Bulletin No 4187 - Choosing Commercial Beef Bulls, David Barker Jun 1990

Bulletin No 4187 - Choosing Commercial Beef Bulls, David Barker

Bulletins 4000 -

This bulletin provides a method of placing realistic differences in value on young bulls offered for sale.

The prices paid for young bulls are often based on superficial appearance alone, and this has important financial implications for the purchaser. Different characteristics have either large or small effects on the net value of progeny produced. They are dependent on such factors as: the variability of different characteristics in cattle; differences in reliability of the assessment; the extent to which the characteristic is passed on to the progeny; the effect of the characteristic on realized net value of the progeny; the effect …


Preliminary Agronomic Evaluation And Characterization Of The Genetic Resources Of Trifolium And Ornithopus Species., R. Snowball Jan 1990

Preliminary Agronomic Evaluation And Characterization Of The Genetic Resources Of Trifolium And Ornithopus Species., R. Snowball

Experimental Summaries - Plant Research

Trial 91MD13

Location: Medina Vegetable Research Station

To evaluate and characterize new and old collections of Trifolium and Ornithopus species.

To regenerate lines to provide sufficient seed of high quality for long term storage in the Australian Trifolium Genetic Resource Centre (ATGRC).


Can Genetically Engineered Crops Become Weeds?, Kathleen H. Keeler Nov 1989

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. …


Breeding Field Peas In Western Australia, T N. Khan Jan 1989

Breeding Field Peas In Western Australia, T N. Khan

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

Field peas have grown dramatically in popularity in western Australia in the past five years, with the planted area increasing from a mere few hundred hectares to about 70,000 ha in 1988. This growth may continue, as more than 700,000 ha of agricultural land is potentially suitable for growing field peas.

However, any such growth of the pea industry will require new cultivars with improved yield, adaptation and quality characteristics to meet local and export demands. The Department of agriculture therefore decided to start a selection and breeding programme to support the pea industry.


Deer And Forestry In Germany: Half A Century After Aldo Leopold, Michael L. Wolfe, Friedrich-Christian V. Berg May 1988

Deer And Forestry In Germany: Half A Century After Aldo Leopold, Michael L. Wolfe, Friedrich-Christian V. Berg

Aspen Bibliography

No abstract provided.


Double Cross: Agriculture And Genetics, 1930 To 1960, Tracy Scott Lebenzon Feb 1988

Double Cross: Agriculture And Genetics, 1930 To 1960, Tracy Scott Lebenzon

Dissertations and Theses

This paper discusses the role of genetic technology and application in agriculture between 1930 and 1960. Topics covered include the role of genetics and the relationship that theory, education, administration, professionalism, economic and social considerations bore to genetics.


Clonal Foraging In Perennial Wheatgrasses: A Strategy For Exploiting Patchy Soil Nutrients, L. D. Humphrey, D. A. Pyke Oct 1987

Clonal Foraging In Perennial Wheatgrasses: A Strategy For Exploiting Patchy Soil Nutrients, L. D. Humphrey, D. A. Pyke

Aspen Bibliography

1 Foraging by means of plasticity in placement of tillers in response to low- and high- nutrient patches was examined in the rhizomatous wheatgrass Elymus lanceolatus ssp. lanceolatus. Its ability to exploit soil nutrient patches was compared to that of the closely related but caespitose E. lanceolatus ssp. wawawaiensis. 2 Clones of 14 genets of each taxon were planted in boxes consisting of two 30 x 30 cm cells: the 'origin cell' where clones were planted, and the adjacent 'destination cell', with each cell containing soil with either low or high levels of nutrients. 3 The rhizomatous taxon, which can …


Characteristics Of Successful Competitors: An Evaluation Of Potential Growth Rate In Two Cold Desert Tussock Grasses, Eissenstat D. M., Caldwell M. M. Jan 1987

Characteristics Of Successful Competitors: An Evaluation Of Potential Growth Rate In Two Cold Desert Tussock Grasses, Eissenstat D. M., Caldwell M. M.

Aspen Bibliography

Within the first few weeks after seedling emergence, Agropyron desertorum, a more competitive tussock grass, had a much higher mean relative growth rate (RGR) than Agropyron spicatum, a very similar, but less competitive species. However, beyond the early seedling stage, the two grasses had a remarkably similar whole-plant RGR in hydroponic culture and aboveground RGR in glasshouse soil, if root temperatures were above approximately 12° C. At soil temperatures between 5 and 12° C, A. desertorum exhibited a 66% greater aboveground RGR than A. spicatum (P < 0.05). Both species responded similarly to warming soil temperatures. In the field, however, tiller growth rates were generally similar. Neither species showed marked tiller elongation until a couple of weeks after snowmelt, by which time soil temperatures, at least to a depth of 10 cm, were above 12° C for a significant portion of the day. Above-ground biomass accumulation over a three-year period indicated that both grasses had similar potential growth rates whereas Artemisia tridentata ssp. vaseyana, a common neighbor planted in the same plots, had a much greater potential growth rate. The greater competitive ability of adult A. desertorum, as compared to A. spicatum, cannot be attributed to appreciable differences in potential growth rates.


Molecular Cloning Of Spinach Chloroplast Dna Isolated By Alkaline Lysis, Robert Gray Drager Jan 1987

Molecular Cloning Of Spinach Chloroplast Dna Isolated By Alkaline Lysis, Robert Gray Drager

Dissertations and Theses

Chloroplast genomes of land plants show conservation of structure and gene arrangement. The spinach chloroplast genome is comprised of a covalently closed. circular DNA molecule of 150 kilobases and is typical of these plants. Approximately 20% of the proteins found in the spinach chloroplast are encoded by the chloroplast genome and translated on chloroplast ribosomes. The remainder are encoded on chromosomes in the nucleus, translated on cytoplasmic ribosomes and transported into the chloroplast.

Spinach chloroplast DNA was isolated from crude 2 chloroplast preparations by a new method. Chloroplasts were lysed with alkaline sodium dodecyl sulfate, contaminating macromolecules precipitated with acidified …


Relationships Among Aspen, Fungi, And Ungulate Browsing In Colorado And Wyoming, John H. Hart Jan 1986

Relationships Among Aspen, Fungi, And Ungulate Browsing In Colorado And Wyoming, John H. Hart

Aspen Bibliography

No abstract provided.


Public Response To "Guidelines For Managing Aspen", Norbert V. Debyle Jan 1985

Public Response To "Guidelines For Managing Aspen", Norbert V. Debyle

Aspen Bibliography

No abstract provided.


Guidelines For Managing Aspen, The Aspen Panel Jan 1985

Guidelines For Managing Aspen, The Aspen Panel

Aspen Bibliography

No abstract provided.


Aspen Community Types Of Nevada, W. F. Mueggler Jan 1985

Aspen Community Types Of Nevada, W. F. Mueggler

Aspen Bibliography

No abstract provided.


Growth, Yield, And Enfor, Imre Bella Apr 1984

Growth, Yield, And Enfor, Imre Bella

Aspen Bibliography

Increasing public awareness about the state of forestry and concerns about present and future wood supplies are bringing about an intensification of forest management across the country.


Aspen Management Guidelines For The Grand Mesa, Uncompahgre And Gunnison National Forest, Aspen Management Task Force Jan 1983

Aspen Management Guidelines For The Grand Mesa, Uncompahgre And Gunnison National Forest, Aspen Management Task Force

Aspen Bibliography

A task force was formed in late April 1983 for the purpose of developing guidelines for Aspen Management on the Grand Mesa, Uncompahgre and Gunnison National Forests.


Understory-Overstory Vegetation Relationships: An Annotated Bibliography, Peter F. Ffolliott, Warren P. Clary Jan 1982

Understory-Overstory Vegetation Relationships: An Annotated Bibliography, Peter F. Ffolliott, Warren P. Clary

Aspen Bibliography

No abstract provided.


The Extent And Characteristics Of Low Productivity Aspen Areas In Minnesota, Garhard K. Raile, Jerold T. Hahn Jan 1982

The Extent And Characteristics Of Low Productivity Aspen Areas In Minnesota, Garhard K. Raile, Jerold T. Hahn

Aspen Bibliography

No abstract provided.


An Experiment In Biomass Production: Results From Three Consecutive Harvests Of Cottonwood Alder, Constance A. Harrington, Dean S. Debell, Robert F. Strand Jan 1982

An Experiment In Biomass Production: Results From Three Consecutive Harvests Of Cottonwood Alder, Constance A. Harrington, Dean S. Debell, Robert F. Strand

Aspen Bibliography

No abstract provided.


Biomass Equations For Ten Major Tree Species Of The Prairie, T. Singh Jan 1982

Biomass Equations For Ten Major Tree Species Of The Prairie, T. Singh

Aspen Bibliography

No abstract provided.


Wildlife Conservation In The Soviet Union, Michael L. Wolfe, Douglas R. Weiner Jan 1982

Wildlife Conservation In The Soviet Union, Michael L. Wolfe, Douglas R. Weiner

Aspen Bibliography

No abstract provided.