Charles M. Geddes

Iowa State University — United States

Agricultural and Biological Sciences · Life Sciences

17h-index1.1kcitations75works2.22yr avg
OpenAlex↗ORCID↗Google Scholar↗Lab page↗

Accepting Students?

No reports yet. Know if this professor is taking students?

Research Topics

Weed Control and Herbicide Applications(46), Pesticide and Herbicide Environmental Studies(24), Legume Nitrogen Fixing Symbiosis(14), Soil Carbon and Nitrogen Dynamics(12), Allelopathy and phytotoxic interactions(10)

Publications75 total

Novel Protoporphyrinogen oxidase 1 mutations endow resistance to PPO-inhibiting herbicides in <i>Bassia scoparia</i>
2026Open Access
Aerial Insights: Advancing Nitrogen Estimation in Field Crops using Multispectral Imaging
˜The œinternational archives of the photogrammetry, remote sensing and spatial information sciences/International archives of the photogrammetry, remote sensing and spatial information sciences·2025· 1 citedOpen Access
Estimation of Nitrogen Content in Canola and Wheat Using Hyperspectral Drone Imaging
2025
Optimizing canola production in the Northern Great Plains by leveraging genotype × environment × management synergies
Crop Science·2025Open Access
Within-farm spatiotemporal variability impacts carrot yield and quality more than preceding cover crop on a Canadian organic farm
Organic Agriculture·2025Open Access
UAV-based hyperspectral imaging to evaluate plant moisture and desiccant response in lentil (<i>Lens culinaris</i>)
Canadian Journal of Plant Science·2025· 1 citedOpen Access
Baseline survey of protoporphyrinogen oxidase inhibitor-resistant kochia (<i>Bassia scoparia</i>) in western Canada
Canadian Journal of Plant Science·2025Open Access
Base temperature of soybean primary root elongation varies among cultivars
Canadian Journal of Plant Science·2025
Protoporphyrinogen oxidase (PPO)-inhibitor resistance in kochia (<i>Bassia scoparia</i>)
Weed Science·2025· 3 citedOpen Access
Economics of cropping sequences diversified with specialty crops in the semi-arid Canadian prairies
Canadian Journal of Plant Science·2025Open Access
Multispectral Drone Imaging for Non-Destructive Estimation of Nitrogen Content in Canola and Wheat
2024· 1 cited
Forging new paths to manage herbicide-resistant weeds
Canadian Journal of Plant Science·2024· 1 cited
Simultaneous canola windrowing and herbicide treatment improve the production of sequenced winter wheat
European Journal of Agronomy·2024· 1 citedOpen Access
A history of community-based initiatives that led to crop improvement and protection in the Canadian prairies
Canadian Journal of Plant Science·2024Open Access
Russian thistle (Salsola tragus L.) serotiny promotes simultaneous aerial and soil seedbanks
Frontiers in Agronomy·2024Open Access
Herbicide resistance is complex: a global review of cross-resistance in weeds within herbicide groups
Weed Science·2024· 20 citedOpen Access
Multiple soil health indicators are responsive to summer cover crops on an irrigated organic farm
Canadian Journal of Soil Science·2024· 2 cited
Wild Oat ( <i>Avena fatua</i> ): Crop Mimicry and Herbicide Resistance
Plant Health Cases·2024· 1 cited
Effects of reduced pesticide use on winter wheat production in the Canadian Prairies
Canadian Journal of Plant Science·2024· 1 citedOpen Access
Distribution, frequency, and impact of herbicide-resistant weeds in Saskatchewan
Canadian Journal of Plant Science·2024· 8 citedOpen Access
page 1 of 4Next →

Frequent Co-authors

Shaun M. Sharpe(11), William E. May(9), Mervin St. Luce(9), Daniel Liptzin(8), Cameron N. Carlyle(8), Miles Dyck(8), Benjamin H. Ellert(8), Xiying Hao(8), Francis J. Larney(8), Mattea M. Pittman(8), Hugh J. Beckie(8), Robert H. Gulden(8), Charlotte E. Norris(7), Shannon B. Cappellazzi(7), G. Mac Bean(7), Kelsey L.H. Greub(7), Elizabeth L. Rieke(7), P. W. Tracy(7), Ezra Aberle(7), Amanda J. Ashworth(7)