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Now showing items 21-40 of 82
Evaluating and improving corn nitrogen fertilizer recommendation tools across the U.S. Midwest
(University of Missouri--Columbia, 2018)
to evaluate the performance of publicly-available N fertilizer recommendation tools across a wide range of soil and weather environments for 1) prescribing EONR for planting and split N fertilizer applications, 2) improve understanding of the economic...
Chloroplast GFP expression in tobacco plants agroinfiltrated with tobacco mosaic virus based vectors
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Viruses are submicroscopic infectious particles comprising of nucleic acid and protein which can replicate only within living host cells. TMV is a ...
Impact of alternate host phenology amd alternate hose-transgenic corn interactions on the Western corn rootworm (Coleoptera: Chrysomelidae)
(University of Missouri--Columbia, 2006)
With the increasing adoption of transgenic maize with resistance to rootworms, combined with glyphosate tolerance, as a control tactic for western corn rootworm, Diabrotica virgifera virgifera LeConte, an understanding of ...
An environmental assessment of sensor-based variable-rate nitrogen management in corn
(University of Missouri--Columbia, 2006)
Nitrogen (N) fertilizer unused by the crop is left to the fate of the processes of the N cycle, and can eventually lead to nitrate contamination of surface and ground waters. In order to address this problem, various methods ...
Associations between Wolbachia, maize and Diabrotica virgifera virgifera
(University of Missouri--Columbia, 2008)
Wolbachia hosts induce or vector serious human diseases resulting in the loss of millions of lives annually. The majority of differentially expressed genes identified in a microarray experiment performed to locate endogenous sources of D. virgifera virgifera...
The role of genetic and phenotypic diversity in maize and its effects on aflatoxin accumulation by the fungus Aspergillus flavus
(University of Missouri--Columbia, 2008)
Accumulation of the potent carcinogen, aflatoxin, in maize poses a significant health risk to humans and animals. Most commercially grown maize lines are susceptible to infection by the fungus that synthesizes aflatoxin, ...
Sulfur metabolism in Glycine max [L.] Merr : characterization of serine acetyletransferase and O-acetylserine (thiol) lyase
(University of Missouri--Columbia, 2006)
Soybean (Glycine max [L.] Merr) is considered an excellent protein source for both humans and livestock. Further improvement of quantity and quality of soybean protein is vital for maintaining the utility of this versatile ...
Toxicogenomics of Diabrotica virgifera virgifera leconte in response to eCry3.1Ab-expressing transgenic maize
(University of Missouri--Columbia, 2019)
In modern agricultural systems, insect pests are constantly facing stresses from natural factors and pest management. Strong selection pressure results in evolution of insect resistance to control substances such as chemical ...
Dissipation and carryover of imidazolinone herbicides in imidazolinone-resistant rice (Oryza sativa)
(University of Missouri--Columbia, 2007)
and non-flooded plots on silt loam and clay soils. Soil damples were taken periodically during the year following application. Samples were frozen to stop dissipation. Soil samples were tested using a bioassay and standard curve. From this information...
Competition and management of volunteer corn (Zea Mays L.) in corn
(University of Missouri--Columbia, 2011)
Volunteer corn (Zea mays L.) is the result of corn kernels remaining in the field following harvest and is a competitive weed in a number of subsequent crops. With widespread adoption of glyphosate-resistant (Gly-R) corn, ...
Biology and management of cut-leaved Teasel (Dipsacus laciniatus L.) in central Missouri
(University of Missouri--Columbia, 2006)
locations by measuring plant dry weight and leaf area. Herbicide efficacy experiments were conducted with four modes of action: amino acid biosynthesis inhibitors, growth regulators, acetolactate synthase (ALS) inhibitors, and cell membrane disrupters. Total...
Influence of entomopathogenic fungi from forest and urban habitats on founding pairs of reticulitermes flavipes (rhinotermitidae)
(University of Missouri--Columbia, 2015)
In forest habitats, termites break down woody debris and assist in nutrient cycling of carbon and nitrogen. However, infestations in suburban habitats have given subterranean termites a high priority for pest management. ...
Predator-prey interactions involving the soybean aphid (Hemiptera: Aphididae) in Missouri
(University of Missouri--Columbia, 2007)
The recently introduced soybean aphid, Aphis glycines Matsumura, is found in all soybean growing areas within Missouri. Despite soybean aphid's widespread distribution, it has reached economic threshold in few soybean ...
Exploring the symbiotic relationship of plants and microbes by mass spectrometry imaging
(University of Missouri--Columbia, 2019)
-MS) for in situ metabolic profiling. This reliable approach requires minimal sample preparation, while preserving the spatial information of biomolecules in their native state. The results provide information regarding those metabolic pathways that play a...
Growth, photosynthesis, and carbohydrate dynamics of cotton during early development
(University of Missouri--Columbia, 2018)
outgrow damage by biotic stress factors, and may also improve their ability to tolerate abiotic stress conditions. However, information about the physiological mechanisms governing early vigor in cotton is limited. Therefore, three cotton genotypes...
Poison hemlock (conium Maculatum L.) : biology, implications for pastures and response to herbicides
(University of Missouri--Columbia, 2008)
and germination of poison hemlock seed were measured. Dry biomass of poison hemlock was measured through time in the early spring in relation to plant density. Herbicide efficacy experiments were conducted in the spring using amino acid biosynthesis inhibitors...
Plant succession on Missouri strip-mined land
(University of Missouri--Columbia, 1974)
is the work of such groups as the Central States Forest Experiment Station and other federal, state, and private agencies who made their studies in response to a call for help from mining companies that were attempting to reclaim land (Limstrom, 1960...
Physiological traits underlying differences in salt tolerance among glycine species
(University of Missouri--Columbia, 2008)
Salinity drastically reduces crop yield by limiting water uptake and causing ion-specific stress. Soybean is sensitive to soil salinity. Previous studies, however, have shown that there is variability among soybean genotypes ...
Effect of irrigation on fertilizer nitrogen requirement, economic returns, and water availability in a corn-soybean rotation
(University of Missouri--Columbia, 2019)
application. Two irrigation experiments were conducted at University of Missouri Greenley Research Center near Novelty, MO from 2015 to 2018. In each experiment, three irrigation treatments: sprinkler irrigation, subsurface drip irrigation, and no...
Role of microRNAs in the legume - rhizobium nitrogen fixing symbiosis
(University of Missouri--Columbia, 2019)
to efforts to fully understand the molecular mechanisms controlling the legume - Rhizobium interaction. Our ultimate hope is that the information gained through my studies can lead to an increased utilization of biological nitrogen fixation for sustainable...