Transcriptional analysis of sweet corn hybrids in response to crowding stress

Choe, Eunsoo; Ko, Yun Woong; Williams, Martin M.

doi:10.1371/journal.pone.0253190

Cited by 3 publications

(2 citation statements)

References 76 publications

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“…As mentioned, hybrids differ in density tolerance, even among modern lines that are commercially available and grown (Williams 2012(Williams , 2015. The physiological underpinnings of density tolerance variations in sweet corn have received limited study (Choe et al 2016(Choe et al , 2021Revilla et al 2021). Even within a hybrid, EOPD and YOPD can vary widely across environments (Dhaliwal and Williams 2019).…”

Section: Discussionmentioning

confidence: 99%

No Evidence Sowing Date Influences Optimum Plant Density of Sweet Corn Grown in the Midwestern United States

Williams

Dhaliwal

Hausman

2023

horts

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Sweet corn (Zea mays L.var. rugosa or saccharata) is sown across a wide range of dates to provide a steady supply of marketable ears for fresh market and processing. There is a perception in the sweet corn industry that plant density tolerance declines in late-season plantings in the midwestern United States; however, publicly available data to support this perception cannot be found. Using field experiments, the objectives of this research were to quantify the effect of the sowing date on growth responses to plant density and determine the extent to which the sowing date influences the optimum plant density and maximum yield/profit. There were few main effects or interactions of the sowing date on crop growth. More importantly, there was no effect of the sowing date on the economically optimum plant density or plant density that optimized yield. Although variations exist in sweet corn optimum plant densities in the midwestern United States, these variations are likely driven by several factors other than the sowing date that have not yet been fully characterized.

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Section: Discussionmentioning

confidence: 99%

No Evidence Sowing Date Influences Optimum Plant Density of Sweet Corn Grown in the Midwestern United States

Williams

Dhaliwal

Hausman

2023

horts

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“…Recent on-farm research throughout the Midwest shows hybrids with superior PDT are being underplanted (Dhaliwal and Williams 2019, 2020b). Moreover, transcriptional and functional analyses have identified candidate physiological processes involved in sweet corn PDT (Choe et al 2016, 2021). While PDT is intraspecific competition (crop vs. crop), not interspecific competition (crop vs. weed), previous research has shown the two are linked (Williams and Boydston 2013).…”

Section: Present—ars Weed Science Researchmentioning

confidence: 99%

Agricultural Research Service Weed Science Research: Past, Present, and Future

Young¹,

Anderson²,

Baerson

et al. 2023

Weed Sci

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The U.S. Department of Agriculture–Agricultural Research Service (USDA-ARS) has been a leader in weed science research covering topics ranging from the development and use of integrated weed management (IWM) tactics to basic mechanistic studies, including biotic resistance of desirable plant communities and herbicide resistance. ARS weed scientists have worked in agricultural and natural ecosystems, including agronomic and horticultural crops, pastures, forests, wild lands, aquatic habitats, wetlands, and riparian areas. Through strong partnerships with academia, state agencies, private industry, and numerous federal programs, ARS weed scientists have made contributions to discoveries in the newest fields of robotics and genetics, as well as the traditional and fundamental subjects of weed–crop competition and physiology and integration of weed control tactics and practices. Weed science at ARS is often overshadowed by other research topics; thus, few are aware of the long history of ARS weed science and its important contributions. This review is the result of a symposium held at the Weed Science Society of America’s 62nd Annual Meeting in 2022 that included 10 separate presentations in a virtual Weed Science Webinar Series. The overarching themes of management tactics (IWM, biological control, and automation), basic mechanisms (competition, invasive plant genetics, and herbicide resistance), and ecosystem impacts (invasive plant spread, climate change, conservation, and restoration) represent core ARS weed science research that is dynamic and efficacious and has been a significant component of the agency’s national and international efforts. This review highlights current studies and future directions that exemplify the science and collaborative relationships both within and outside ARS. Given the constraints of weeds and invasive plants on all aspects of food, feed, and fiber systems, there is an acknowledged need to face new challenges, including agriculture and natural resources sustainability, economic resilience and reliability, and societal health and well-being.

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