Effect of seed treatment on early season brown spot caused by Septoria glycines of soybean

Jean C. Batzer; Yuba R. Kandel; Carl A. Bradley; Martin I. Chilvers; Albert U. Tenuta; Kiersten A. Wise; Edward Hernández; Daren S. Mueller

doi:10.1094/PHP-RS-16-0035

Effect of seed treatment on early season brown spot caused by Septoria glycines of soybean

Jean C. Batzer
, Yuba R. Kandel
, Carl A. Bradley
, Martin I. Chilvers
, Albert U. Tenuta
, Kiersten A. Wise
, Edward Hernández
, Daren S. Mueller

Plant Pathology

Producción científica: Article › revisión exhaustiva

6 Citas (Scopus)

Resumen

Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased with plant age at inoculation for the fluopyram treatment (P = 0.009). The sensitivity of two S. glycines isolates to fluopyram was assessed by determining the effective concentration required to reduce its colony diameter growth in culture by 50% (EC₅₀). Both isolates had an EC₅₀ of 0.41 μg/ml of fluopyram. These results demonstrate that fluopyram seed treatment is effecttive at controlling early season brown spot in soybean.

Idioma original	English
Páginas (desde-hasta)	223-228
Número de páginas	6
Publicación	Plant Health Progress
Volumen	17
N.º	4
DOI	https://doi.org/10.1094/PHP-RS-16-0035
Estado	Published - 2016

Nota bibliográfica

Publisher Copyright:
© 2018.

Financiación

The study was partially funded by Bayer CropScience and soybean checkoff programs through the North Central Soybean Research Program in the United States. The Grain Farmers of Ontario, Canada also provided funding obtained through the Ontario Farm Innovation Program (OFIP), which is a component of Growing Forward 2. We would also like to thank D. Sjarpe, G. Watson, and S. Wiggs from Iowa State University; J. Ravellette, N. Anderson, A. Ramirez, J. Solis, K. Raun, J. Leuck from Purdue University; K. Ames and J. Weems from University of Illinois; A. M. Byrne, J. F. Boyse, and R. G. Laurenz from Michigan State University; C. Van Herk and G. Kotulak from Ontario Ministry of Agriculture Food and Rural Affairs for trial establishment, maintenance and data collection; and Michael McCarville from Bayer Crop Science for providing treated seed and suggestions on early drafts of the manuscript.

Financiadores
Purdue Climate Change Research Center, Purdue University

ASJC Scopus subject areas

Plant Science
Horticulture

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10.1094/PHP-RS-16-0035

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title = "Effect of seed treatment on early season brown spot caused by Septoria glycines of soybean",

abstract = "Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased with plant age at inoculation for the fluopyram treatment (P = 0.009). The sensitivity of two S. glycines isolates to fluopyram was assessed by determining the effective concentration required to reduce its colony diameter growth in culture by 50\% (EC50). Both isolates had an EC50 of 0.41 μg/ml of fluopyram. These results demonstrate that fluopyram seed treatment is effecttive at controlling early season brown spot in soybean.",

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T1 - Effect of seed treatment on early season brown spot caused by Septoria glycines of soybean

AU - Batzer, Jean C.

AU - Kandel, Yuba R.

AU - Bradley, Carl A.

AU - Chilvers, Martin I.

AU - Tenuta, Albert U.

AU - Wise, Kiersten A.

AU - Hernández, Edward

AU - Mueller, Daren S.

PY - 2016

Y1 - 2016

N2 - Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased with plant age at inoculation for the fluopyram treatment (P = 0.009). The sensitivity of two S. glycines isolates to fluopyram was assessed by determining the effective concentration required to reduce its colony diameter growth in culture by 50% (EC50). Both isolates had an EC50 of 0.41 μg/ml of fluopyram. These results demonstrate that fluopyram seed treatment is effecttive at controlling early season brown spot in soybean.

AB - Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased with plant age at inoculation for the fluopyram treatment (P = 0.009). The sensitivity of two S. glycines isolates to fluopyram was assessed by determining the effective concentration required to reduce its colony diameter growth in culture by 50% (EC50). Both isolates had an EC50 of 0.41 μg/ml of fluopyram. These results demonstrate that fluopyram seed treatment is effecttive at controlling early season brown spot in soybean.

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DO - 10.1094/PHP-RS-16-0035

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JO - Plant Health Progress

JF - Plant Health Progress

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ER -

Effect of seed treatment on early season brown spot caused by Septoria glycines of soybean

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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Huella

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