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The impact of economically important Grapevine viruses on yield and berry juice quality in the hybrid grape cultivars Norton and Chardonel
(University of Missouri--Columbia, 2022)
(GRBV). These viruses are prevalent in Missouri vineyards. Even with the threat these viruses pose, research has been done almost exclusively in Vitis vinifera, while little is known about how they might affect the grape hybrids commonly grown...
Response of insect pest and beneficial species to the timing and severity of dicamba injury in soybean
(University of Missouri--Columbia, 2020)
locations in Missouri in 2018 and three locations in 2019 to determine if dicamba injury to non-DR soybean has any effect on the prevalence of insect species throughout the growing season. At each location, dicamba was applied to non-DR soybean at rates...
Interactions between dioecious plants and insect herbivore chewing vibrations and life history and laboratory rearing of the red admiral, Vanessa atalanta
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 5/1/2024] Chapter 1: Life History and Laboratory Rearing of the Red Admiral, Vanessa atalanta The red admiral butterfly, Vanessa atalanta (Linneaus, 1758) (Lepidoptera: Nymphalidae) is a globally distributed ...
Conserving monarch butterflies through habitat management and policy
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 8/1/2024] Monarch butterflies (Danaus plexippus) are in decline, with a 91 percent population reduction since 1996. Habitat loss is a major contributor to this decline. The milkweed plant (Asclepias spp.) ...
Spring establishment of tall fescue utilizing sunn hemp as a companion crop under rotational grazing management
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 12/01/2024] Tall fescue (Schedonorus arundinaceus (Schreb.) Dumort.) is the predominant perennial cool season grass used for forage in Missouri. It demonstrates a bi-modal seasonal yield distribution with forage production periods...
Establishment of native plant species for livestock forage in silvopasture systems
(University of Missouri--Columbia, 2022)
Incorporating sustainable agriculture practices and environmental stewardship into existing forage-livestock systems is growing in popularity. This project takes a novel approach incorporating native rather than introduced ...
An assessment of UAV technology and shattercane population dynamics to improve pest management
(University of Missouri--Columbia, 2023)
Unmanned aerial vehicles (UAVs) outfitted for pesticide application have the potential to improve application efficiency under conditions challenging for traditional, ground-based equipment. UAV-applied treatments had 21-32 ...
Sustainable management of invasive species
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 12/1/2024] Integrated pest management combines an array of management strategies to combat pest species in an environmentally minded manner. However, these tactics are increasingly disrupted by climate ...
Arabidopsis and Xanthomonas campestris pv. campestris two model organisms in plant pathology
(University of Missouri--Columbia, 2022)
Causative agent of black rot of crucifers, Xanthomonas campestris pv. campestris (Xcc), is a rod-shaped Gram-negative bacterium that belongs to the [gamma]-subdivision of Proteobacteria. It was first described in 1889 by ...
The development of the Heterodimeric enhanced Yeast-One Hybrid (HD-eY1H) assay
(University of Missouri--Columbia, 2022)
Life can be summarized as a continuous struggle to maintain homeostasis - or balance - despite dynamic changes in environmental conditions. Changes in gene expression is one of the many ways organisms can interact and ...
Genetic mapping of soybean cyst nematode resistance and evaluation of resistant germplasm in soybean and pennycress
(University of Missouri--Columbia, 2022)
A single mode of genetic resistance derived from PI 88788 (rhg1-b) has dominated the $57.5 B US soybean market for almost three decades. The breakdown of resistance and selection of virulent nematode populations poses a ...
Soybean tolerance to off-target dicamba damage
(University of Missouri--Columbia, 2022)
Since the commercialization and widespread adoption of dicamba-tolerant (DT) soybean cultivars across the United States, numerous cases of off-target damage to non-DT soybean have been reported. Previous studies have focused ...
Characterization of diverse soybean genotypes for phosphorus uptake and use efficiency
(University of Missouri--Columbia, 2021)
Soybean (Glycine max L. Merrill) is one of the most important legume crops grown worldwide. However, without phosphorus (P) fertilization, soybean yields often are limited by phosphorus availability. Phosphorus is an ...
Increasing methionine content of soybean using CRISPR/Cas9 and developing machine learning predictive models
(University of Missouri--Columbia, 2022)
Soybean [Glycine max (L.) Merr.] is an important protein source for both humans and animals. Its relatively low cost combined with its excellent nutritive value has enabled soybeans to attain elite stature as the world's ...
Molecular approaches to improve soybean plant architecture and seed composition
(University of Missouri--Columbia, 2021)
Soybean is an important agronomic crop which has been widely used as a vegetable oil as well as a source of protein for animals and humans. Among various desired traits for genetic improvement to improve the value of ...
Neuropeptide bursicon homodimer's roles in reproduction and innate immunity of the red flour beetle, Tribolium castaneum
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 8/1/2024] Bursicon is a cystine knot family neuropeptide, composed of bursicon (burs) and partner of burs (pburs) subunits, and can form heterodimers and homodimers to execute different biological functions. ...
Drainage water management practices affect water quality, soil properties, and crop production
(University of Missouri--Columbia, 2023)
. This dissertation includes results from four studies conducted at the MU Greenley Research Center, Grace Greeley farm, and Ross Jones farm. Long-term, no-till research evaluated the influence of a wheat (Triticum aestivum L.), radish (Raphanus raphanistrum subsp...
Computational methods to identify ionomic candidate genes in plants
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 12/1/2024] High throughput phenotyping and quantitative genetics have enabled researchers to identify genetic regions associated with changes in phenotype. However, going from GWAS loci to candidate genes ...
Effects of stress, genetics, and environment on microbiome composition in western corn rootworm (Diabrotica virgifera virgifera Leconte)
(University of Missouri--Columbia, 2023)
Increased study of microbiomes illuminated the diversity of roles microorganism play across ecosystems. For agricultural systems, microbiomes represent a new frontier to potentially improve plant, animal, and human health, ...
Maize nodal roots maintain elongation in dry soil by avoiding growth zone dehydration
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 5/1/2024] Maize (Zea mays L.) is one of the most produced cereal crops worldwide and is increasingly susceptible to yield limitations resulting from drought stress. The growth of roots is essential to plant ...