Browsing Division of Plant Sciences (MU) by Thesis Semester "2018 Spring"
Now showing items 1-14 of 14
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Abscisic acid : interactions with auxin in the regulation of root growth under water deficit conditions
(University of Missouri--Columbia, 2018)Water stress has been shown to inhibit shoot growth more than root growth (Sharp et al., 1988). Abscisic acid (ABA) has been shown to be involved in this differential growth response in maize (Zea mays L.) seedlings (Saab ... -
Adaptation of soybean to tropical environments for smallholder farmers
(University of Missouri--Columbia, 2018)There are many traits that influence crop adaption to a new environment so that it can perform as a farmer would prefer. In these chapters, I have shown the influence of the genetic mechanisms behind pod shatter, days to ... -
Analysis of severe elevated thunderstorms using DCIN and DCAPE
(University of Missouri--Columbia, 2018)A 10-year study of elevated severe thunderstorms was performed using The National Centers for Environmental Information (NCEI) Storm Report database. This research further corroborates previous studies of occurrence, ... -
Development and improvement of artificial diets for larvae of Diabrotica species using multidimensional design space techniques
(University of Missouri--Columbia, 2018)The western corn rootworm (Coleoptera: Chrysomelidae; Diabrotica virgifera virgifera LeConte) and the northern corn rootworm (Coleoptera: Chrysomelidae; Diabrotica barberi Smith & Lawrence) are highly adaptive insect pests ... -
Estimating the water budget of extratropical cyclones with the precipitation efficiency
(University of Missouri--Columbia, 2018)Estimating the water budget of three mid-latitude extratropical cyclones is attempted from the perspective of the precipitation efficiency (PE), using a method proposed for the study of convective columns. Using a lagrangian, ... -
Evaluating and improving corn nitrogen fertilizer recommendation tools across the U.S. Midwest
(University of Missouri--Columbia, 2018)Determining which corn (Zea mays L.) nitrogen (N) recommendation tools best predict the economically optimal N rate (EONR) would be valuable for maximizing profits and minimizing environmental consequences. The objectives ... -
Genetic architecture and marker-assisted breeding for salt tolerance in soybean
(University of Missouri--Columbia, 2018)Salinity is one of the major abiotic stresses that inhibits plant growth and causes seed yield loss in soybean. Although a major gene for salt tolerance on chromosome (Chr.) 3 was mapped, cloned and characterized, it does ... -
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 ... -
Interactions between cover crops, herbicides and weeds in soybean production systems
(University of Missouri--Columbia, 2018)The use of cover crops in soybean production systems has increased in recent decades. There are many questions surrounding cover crops, specifically their benefits to crop production and how to best manage them. One ... -
Nitrogen management strategies to improve corn growth and reduce soil greenhouse gas emissions from claypan soils
(University of Missouri--Columbia, 2018)Adoption of nitrogen (N) management strategies to minimize gaseous N loss from agriculture while maintaining high yield production is increasingly important for an exponentially growing population. Agricultural management ... -
Partial characterization of Bt resistance and the bacteriome of western corn rootworm
(University of Missouri--Columbia, 2018)Western corn rootworm (Diabrotica virgifera virgifera LeConte) and northern corn rootworm (Diabrotica barberi (Smith and Lawrence)) are major pests of maize in the USA. These pests have been managed with a variety of tactics ... -
Prairie stream ecology : temporal and spatial patterns of macroinvertebrates
(University of Missouri--Columbia, 2018)Tallgrass prairie streams and their fauna are understudied, due in part to their rarity. The composition of prairie stream communities differs geographically due to regionally and locally determined environmental characteristics ... -
Soil health assessment of the Sanborn Field long-term experimental study
(University of Missouri--Columbia, 2018)Soil health assessment uses a combination of potential indicators affecting soil processes to comprehensively monitor soil change, caused by cropping systems and soil management. The objectives of the study were to assess ... -
Vegetation management along roadside and railroad right-of-ways
(University of Missouri--Columbia, 2018)Efficient transportation of freight as well as motorists requires effective control of vegetation on right-of-ways (ROW's). Traditionally on railroad ROW's, residual herbicides are applied early in the growing season with ...