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- American ginseng (Panax quinquefolius) (1)
- CRISPR/Cas (1)
- Crop nutrition (1)
- Detoxification (1)
- Engineered trait variation (1)
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- Extraction (1)
- GRD (1)
- Ginseng (1)
- Ginseng replant disease (1)
- Ginsenoside (1)
- Hypernodulation Aberrant Root Formation 1 (HAR1) (1)
- Lotus japonicus (1)
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- Soil (1)
- Soil chemistry (1)
- Tetranychus urticae (1)
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Developing A Toolbox To Engineer Quantitative Trait Variation In Legume Species Using Crispr/Cas Technologies., Petar Miletic
Developing A Toolbox To Engineer Quantitative Trait Variation In Legume Species Using Crispr/Cas Technologies., Petar Miletic
Electronic Thesis and Dissertation Repository
The impact of intensive agriculture on the environment is immense. This is especially dire with regard to the natural nitrogen (N) cycle, where the human driven interference, primarily associated with industrial fertilization, has reached unsustainable levels. Unlike cereals, legumes, such as soybean, alfalfa and common bean, have the ability to use atmospheric nitrogen, which limits the need for industrial fertilization. A more wide-spread use of legumes could alleviate some of the negative impacts on the biogeochemical cycle while also providing a useful alternative to meat consumption, an important factor in sustainability. To reach this goal, further improvements of legume crops …
Establishment Of A Pesticide Resistance Monitoring Tool For The Two-Spotted Spider Mite, Tetranychus Urticae, Hanna Varonina
Establishment Of A Pesticide Resistance Monitoring Tool For The Two-Spotted Spider Mite, Tetranychus Urticae, Hanna Varonina
Electronic Thesis and Dissertation Repository
Two-spotted spider mite (TSSM), or Tetranychus urticae (Koch), is a major agriculture pest known for its rapid development of resistance to pesticides. The analysis of spider mites’ pesticide resistance demonstrated that resistance patterns and frequencies vary between T. urticae strains collected from different geographic locations and host plants. This research aims at characterization of pesticide resistance patterns in mite populations present in greenhouses in the Southwestern Ontario by identifying genetic and metabolic markers of their pesticide resistance. The establishment of these markers lays the basis for development of a pesticide resistance diagnostic tool that will enable prediction of population resistance …
The Analysis Of Ginsenosides In Ginseng Garden Soil, Karina Marie Kaberi
The Analysis Of Ginsenosides In Ginseng Garden Soil, Karina Marie Kaberi
Electronic Thesis and Dissertation Repository
American ginseng (Panax quinquefolius L.) produces natural products called ginsenosides. The biggest challenge Ontario commercial ginseng farmers face is ginseng replant disease. To understand the function of ginseng root exudates, ginsenoside accumulation and persistence over time were investigated. Currently, no reliable ginsenoside specific extraction method, characterizing the changes in soil chemistry exists. Ginsenoside extraction protocol optimization was required to determine how ginsenoside composition changed over time. Overall, protocol optimization resulted in a 30% increase in yield of ginsenosides compared to previous extraction protocols. In the ginseng gardens, ginsenoside accumulation occurs slowly and did not reach significantly measurable amounts until the …
Dynamics Of The Soil Microbiome In Ginseng Gardens, Megan E. Lambert
Dynamics Of The Soil Microbiome In Ginseng Gardens, Megan E. Lambert
Electronic Thesis and Dissertation Repository
Ginseng Replant Disease (GRD) is a syndrome in which ginseng cannot be cultivated in soil previously used to grow ginseng. Since GRD can persist for decades, it severely impacts the Ontario ginseng industry. To better understand the origin of GRD, the impact of ginseng cultivation on the soil microbiome was investigated in bulk soil of three newly planted ginseng gardens in Ontario, from seeding through two years of cultivation. While specific trends in species richness, diversity and composition were unclear, PERMANOVA analyses confirmed that they changed over time. Known GRD-related pathogens, including Ilyonectria mors-panacis and Fusarium oxysporum, were detected in …