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Competition and management of volunteer corn (Zea Mays L.) in corn
(University of Missouri--Columbia, 2011)
become a troublesome weed. Little is known about the interference and management of Gly-R volunteer corn in corn. The objectives of this research were to: a) determine the extent of kernels remaining in fields following harvest; b) identify...
Comparing mosquito communities of various patch-matrix landscape combinations in central Missouri, with implications for developing models to forecast abundances of important mosquito taxa
(University of Missouri--Columbia, 2010)
environmental conditions within different landscape configurations may help approximate a model for predicting the risk of encountering these disease vectors. Therefore, the goals of the research were to 1) describe the mosquito fauna of the various patch...
Investigation of genes involved in somatic embryogenesis and plant-Agrobacterium interactions through transcriptional profiling
(University of Missouri--Columbia, 2021)
giving rise to a mature whole plant. The breadth of application for genetic engineering is limited by constraints on one or both of these factors in many plant species and individual varieties. Uncovering plant genes which are involved in important...
Modification of fatty acid composition in soybean seeds to improve soybean oil quality and functionality
(University of Missouri--Columbia, 2011)
The purpose of this project is to modify the fatty acid composition in soybean seeds to improve soybean oil quality and functionality. By sequencing the FAD2-1A and FAD2-1B genes in 24 plant introductions, we identified two novel mutant alleles: one...
Cover crop and rotation intensity effects on soil health and yield in corn-soybean cropping systems
(University of Missouri--Columbia, 2020)
stable aggregates, soil moisture, total organic carbon, active carbon, potentially mineralizable nitrogen (PMN), and soil microbial community composition via a phospholipid fatty acid (PLFA) analysis were measured in 2017 and 2018 in Columbia, MO under no...
Influence of herbicides application on weed and tall fescue management and grazing distribution in Missouri pastures
(University of Missouri--Columbia, 2012)
study show that herbicide applications made in the fall that contain metsulfuron will provide approximately 50% control of this weed, but where severe infestations exist a follow-up application will be required. Tall fescue can also be detrimental...
The influence of fusarium species on sweet potato plant performance, root yield and quality
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Sweet potato (Ipomoea batatas (L.) Lam.) is a global important food crop, that has recorded an increase in the consumption, and demand for especially organically produced...
Efficacy of organic herbicides in agronomic crops and improvement of soil biota with organic production practices
(University of Missouri--Columbia, 2019)
-directed, organic herbicides may provide a viable alternative to continued tillage for weed management in soybean. CHAPTER IV. Response of Soil Biota to Long-term Organic Weed Control Practices. Abstract: Current weed management practices in organic systems...
Integrating cover crops into crop rotations in upstate Missouri
(University of Missouri--Columbia, 2018)
"There is an increasing emphasis on management strategies such as reduced tillage, use of cover crops, and implementation of conservation practices (i.e. terraces, no-till, and cropping systems) in Missouri cropping systems. By combining best...
Cotton and maize primary root growth responses to water deficit : comparative physiological and metabolic analysis
(University of Missouri--Columbia, 2019)
Cotton (Gossypium hirsutum L.) and maize (Zea mays L.) are important economic crops that can suffer significant yield loss under drought. Cotton and maize root systems have fundamentally different architectures, in addition to cotton being a...
Grasshopper and bee communities on Missouri prairies : comparing reconstructions and remnants
(University of Missouri--Columbia, 2018)
Tallgrass prairies once occupied a large swath of central North America, but now face the combined challenges of habitat loss and fragmentation. In Missouri, where less than 1% the historical prairie remains, prairies are being reconstructed from...
Field pennycress management in upstate Missouri
(University of Missouri--Columbia, 2017)
Field pennycress has the potential to serve as a cover and oilseed crop. A seed oil content of 25 to 36 percent has created interest in pennycress domestication. This research evaluated management strategies for growing field pennycress. The most...
Development and improvement of artificial diets for larvae of Diabrotica species using multidimensional design space techniques
(University of Missouri--Columbia, 2018)
corn rootworm and northern corn rootworm bioassays rearing. These new formulations provide a standardized growth medium for western corn rootworm and northern corn rootworm larvae that will facilitate toxicity test comparisons conducted by different...
Effect of temperature on a soybean [Glycine max (L.) Merr.] mutant
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Soybean is influenced by temperature and light, and global warming has been shown to reduce soybean yields. In this study we tested the germination of TM-Miniature, a soybean...
Glyphosate resistance : pollen movement within a common ragweed (Ambrosia artemisiifolia L.) population and herbicide release from common waterhemp (Amaranthus rudis sauer) plants
(University of Missouri--Columbia, 2011)
the movement of glyphosate resistance through pollen within a population of common ragweed and evaluate the release of glyphosate from glyphosate-resistant and -susceptible common waterhemp. Results revealed that glyphosate-resistance could move throughout a...
Characterization of soybean rooting depth in response to different environmental conditions
(University of Missouri--Columbia, 2020)
challenging, especially under field conditions. Nonetheless, a better understanding of root system form and function is critical to develop strategies to breed for more stress-resilient crops for local production environments. Studies of soybean root systems...
Research to advance our understanding of off-target dicamba movement in United States agriculture
(University of Missouri--Columbia, 2021)
in this dissertation is designed to provide a better understanding of the environmental conditions and transport mechanisms that influence dicamba volatility and off-target movement and also evaluate the spectral response and yield effects following dicamba and 2,4-D...
Examination of host genetic determinants of the hypersensitive response in Nicotiana edwardsonii to CaMV and TMV
(University of Missouri--Columbia, 2006)
two characteristics: rapid cell death at the site of inoculation and localization of the pathogen to that site. I examined a resistant Nicotiana hybrid, which does not respond with HR-mediated cell death, yet maintains resistance to Cauliflower mosaic...
Comparing the diversity, geographic distribution, and intraspecific variation of subterranean termites (Reticulitermes: Isoptera: Rhinotermitidae) occuring in woodlands and urban environments of Missouri using morphology and 16s mtDNA
(University of Missouri--Columbia, 2007)
. In urban environments they feed upon dead wood, and therefore infest and destroy man-made wooden structures. Missouri is considered to have a moderate risk for termite infestations when compared with the states of the southeast part of the country. Despite...