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Plant Sciences

University of Arkansas, Fayetteville

2010

Articles 1 - 19 of 19

Full-Text Articles in Life Sciences

Arkansas Soybean Performance Tests 2010, R. D. Bond, D. G. Dombek, J. A. Still, R. M. Pryor Dec 2010

Arkansas Soybean Performance Tests 2010, R. D. Bond, D. G. Dombek, J. A. Still, R. M. Pryor

Arkansas Agricultural Experiment Station Research Series

Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture Arkansas Crop Variety Improvement Program.

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Applications Of Site-Specific Recombination Systems In Transgene Expression And Marker Gene Removal, Mehmet Aydin Akbudak Dec 2010

Applications Of Site-Specific Recombination Systems In Transgene Expression And Marker Gene Removal, Mehmet Aydin Akbudak

Graduate Theses and Dissertations

Site Specific Recombination systems, such as FLP-FRT and Cre-lox, have been successfully used for site-specific gene integration and marker-gene deletion in plant systems. They are very useful tools in the integration of single-copy full-length transgene cassettes into the genome because the transgene integration via conventional methods often generate multi-copy locus. Such complex locus containing direct and inverted repeats of full-length and truncated copies of the transgene cassette generate aberrant RNA resulting in gene silencing. Therefore, for stable gene expression, a single copy transgene locus is preferred. However, even single copy locus sometimes succumbs to gene silencing. Although the mechanism is …

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Analysis Of The Response Of Medicago Truncatula Calcium Oxalate Mutants To Abiotic Stress, Wayra Gabriela Navia-Gine Dec 2010

Analysis Of The Response Of Medicago Truncatula Calcium Oxalate Mutants To Abiotic Stress, Wayra Gabriela Navia-Gine

Graduate Theses and Dissertations

Calcium oxalate crystals are found in most plant species. In Medicago truncatula wild-type A17, crystals accumulate in leaves along the secondary veins and the only role attributed to them so far is defense against chewing insects. Calcium oxalate deficient (cod) mutants were isolated in M. truncatula; the cod mutants include cod5, which completely lack crystals in the leaves and cod6 that accumulates fewer and smaller crystals compared to A17. We analyzed gene expression in the cod mutants and A17 using GeneChip® Medicago Genome Arrays and found important differences in transcriptome between the three genotypes. In particular, we found a gene …

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Arkansas Corn And Grain Sorghum Performance Tests 2010, R. D. Bond, D. G. Dombek, J. A. Still, R. M. Pryor Nov 2010

Arkansas Corn And Grain Sorghum Performance Tests 2010, R. D. Bond, D. G. Dombek, J. A. Still, R. M. Pryor

Arkansas Agricultural Experiment Station Research Series

Corn and grain sorghum performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating recommendations for producers.

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Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2008, Jennie Popp, Nathan Kemper, Wayne Miller, Katherine Mcgraw, Kyle Karr Nov 2010

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2008, Jennie Popp, Nathan Kemper, Wayne Miller, Katherine Mcgraw, Kyle Karr

Research Reports and Research Bulletins

This report is the fifth in a series of reports examining agriculture’s economic contribution to the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economics Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2008. Gross Domestic Product (GDP) by State information for Arkansas was compared with those of other states in the southeast U.S. to give a measure of the relative importance of agriculture in Arkansas.2 The total economic contribution …

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Arkansas Wheat Cultivar Performance Tests 2009-2010, J. T. Kelly, R. G. Miller, R. D. Bond, E. A. Milus, R. K. Bacon Oct 2010

Arkansas Wheat Cultivar Performance Tests 2009-2010, J. T. Kelly, R. G. Miller, R. D. Bond, E. A. Milus, R. K. Bacon

Arkansas Agricultural Experiment Station Research Series

Wheat cultivar performance tests are conducted each year in Arkansas by the Arkansas Agricultural Experiment Station, Department of Crop, Soil and Environmental Sciences. The tests provide information to companies developing cultivars and/or marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for small-grain producers.

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Summaries Of Arkansas Cotton Research 2009, Derrick M. Oosterhuis Sep 2010

Summaries Of Arkansas Cotton Research 2009, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

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B. R. Wells Rice Research Studies 2009, R. J. Norman, K. A. K. Moldenhauer Aug 2010

B. R. Wells Rice Research Studies 2009, R. J. Norman, K. A. K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

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Arkansas Turfgrass Report 2009, Douglas Karcher, Aaron Patton, Michael Richardson May 2010

Arkansas Turfgrass Report 2009, Douglas Karcher, Aaron Patton, Michael Richardson

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

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Wayne E. Sabbe Arkansas Soil Fertility Studies 2009, Nathan A. Slaton Mar 2010

Wayne E. Sabbe Arkansas Soil Fertility Studies 2009, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts also be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts.

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Arkansas Cotton Variety Test 2009, Fred M. Bourland, A. B. Beach, D. P. Roberts Jr. Feb 2010

Arkansas Cotton Variety Test 2009, Fred M. Bourland, A. B. Beach, D. P. Roberts Jr.

Arkansas Agricultural Experiment Station Research Series

The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant.

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Instructions For Authors, Discovery Editors Jan 2010

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Marketing Options For Grapes And Grape Products, Pamela Brady, Michael Thomsen, Justin R. Morris Jan 2010

Marketing Options For Grapes And Grape Products, Pamela Brady, Michael Thomsen, Justin R. Morris

Research Reports and Research Bulletins

Many owners of small- and medium-size farms in Arkansas and across the U.S. have begun to explore the potential of juice and wine grapes as an alternative crop to increase the profitability and stability of their farming operations. Grapes are unique in that they are not only well-suited for marketing through traditional commercial channels but also are popular in direct marketing venues such as produce stands, farmers markets, community sponsored agricultural ventures, and pick-your-own operations. This publication provides an overview of the various types of market channels available for grape growers and explores their potential as outlets for regional grape …

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Comparative Leaf Decomposition Rates Including A Non-Native Species In An Urban Ozark Stream, Sarah E. Lewis, Arthur V. Brown Jan 2010

Comparative Leaf Decomposition Rates Including A Non-Native Species In An Urban Ozark Stream, Sarah E. Lewis, Arthur V. Brown

Journal of the Arkansas Academy of Science

Leaf decomposition of three species of native Ozark vegetation was compared to that of one nonnative invasive species. Leaves were placed in an urban gravel-bed stream for 23 days. Changes in mass and condition of the leaves were assessed along with stream temperature, flow, width, depth and discharge. Species native to Eastern North American forests were sycamore (Platanus occidentalis), dogwood (Cornus florida), and redbud (Cercis canadensis). The nonnative species, Japanese (Amur) honeysuckle (Lonicera maackii) comprised approximately 80% of the understory vegetation within the riparian zone of the study reach. After 23 days, Sycamore lost 24.6% mass, dogwood lost 30%, redbud …

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Contents, Discovery Editors Jan 2010

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Letter From The Dean, Michael Vayda Jan 2010

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Characterization And Inheritance Assessment Of Fruit And Leaf Shape In Unique Vitis Seedlings, Paul J. Sandefur, John R. Clark, Douglas Karcher Jan 2010

Characterization And Inheritance Assessment Of Fruit And Leaf Shape In Unique Vitis Seedlings, Paul J. Sandefur, John R. Clark, Douglas Karcher

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

From August to October of 2009, two separate studies were conducted to assess fruit shape of Vitis section Euvitis hybrid bunch grapes using digital photography (Study 1) and evaluate inheritance of leaf shape in unique populations of V. rotundifolia hybrids (Vitis section Muscadinia) (Study 2). All vines studied were located at the University of Arkansas Fruit Research Station, Clarksville. Study 1 used SigmaScan® digital photography analysis software to calculate shape factor, major:minor axis ratio, and compactness of highly variable, unique-shaped fruit from a population of 182 Euvitis seedlings. SigmaScan® accurately characterized fruit shape elongation as had been recorded in previous …

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Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 11 2010, Several Authors Jan 2010

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 11 2010, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Arkansas Soybean Performance Tests 2009, D. G. Dombeck, R. D. Bond, I. L. Eldridge, R. M. Pryor Jan 2010

Arkansas Soybean Performance Tests 2009, D. G. Dombeck, R. D. Bond, I. L. Eldridge, R. M. Pryor

Arkansas Agricultural Experiment Station Research Series

Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/or marketing seed within the state, and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.

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