Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter

Lauren M. Schwartz-Lazaro; Lovreet S. Shergill; Jeffrey A. Evans; Muthukumar V. Bagavathiannan; Shawn C. Beam; Mandy D. Bish; Jason A. Bond; Kevin W. Bradley; William S. Curran; Adam S. Davis; Wesley J. Everman; Michael L. Flessner; Steven C. Haring; Nicholas R. Jordan; Nicholas E. Korres; John L. Lindquist; Jason K. Norsworthy; Tameka L. Sanders; Larry E. Steckel; Mark J. Vangessel; Blake Young; Steven B. Mirsky

doi:10.1017/wsc.2021.74

Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter

Lauren M. Schwartz-Lazaro, Lovreet S. Shergill, Jeffrey A. Evans, Muthukumar V. Bagavathiannan, Shawn C. Beam, Mandy D. Bish, Jason A. Bond, Kevin W. Bradley, William S. Curran, Adam S. Davis, Wesley J. Everman, Michael L. Flessner, Steven C. Haring, Nicholas R. Jordan, Nicholas E. Korres, John L. Lindquist, Jason K. Norsworthy, Tameka L. Sanders, Larry E. Steckel, Mark J. VangesselBlake Young, Steven B. Mirsky

Agronomy and Plant Genetics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Seed retention, and ultimately seed shatter, are extremely important for the efficacy of harvest weed seed control (HWSC) and are likely influenced by various agroecological and environmental factors. Field studies investigated seed-shattering phenology of 22 weed species across three soybean [Glycine max (L.) Merr.]-producing regions in the United States. We further evaluated the potential drivers of seed shatter in terms of weather conditions, growing degree days, and plant biomass. Based on the results, weather conditions had no consistent impact on weed seed shatter. However, there was a positive correlation between individual weed plant biomass and delayed weed seed-shattering rates during harvest. This work demonstrates that HWSC can potentially reduce weed seedbank inputs of plants that have escaped early-season management practices and retained seed through harvest. However, smaller individuals of plants within the same population that shatter seed before harvest pose a risk of escaping early-season management and HWSC.

Original language	English (US)
Pages (from-to)	79-86
Number of pages	8
Journal	Weed Science
Volume	70
Issue number	1
DOIs	https://doi.org/10.1017/wsc.2021.74
State	Published - Jan 15 2022

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Publisher Copyright:
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Keywords

Environmental impacts
harvest weed seed control
herbicide resistance management
integrated weed management
soil seedbank
weed biology
weed ecology

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10.1017/wsc.2021.74

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Schwartz-Lazaro, L. M., Shergill, L. S., Evans, J. A., Bagavathiannan, M. V., Beam, S. C., Bish, M. D., Bond, J. A., Bradley, K. W., Curran, W. S., Davis, A. S., Everman, W. J., Flessner, M. L., Haring, S. C., Jordan, N. R., Korres, N. E., Lindquist, J. L., Norsworthy, J. K., Sanders, T. L., Steckel, L. E., ... Mirsky, S. B. (2022). Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter. Weed Science, 70(1), 79-86. https://doi.org/10.1017/wsc.2021.74

Schwartz-Lazaro, LM, Shergill, LS, Evans, JA, Bagavathiannan, MV, Beam, SC, Bish, MD, Bond, JA, Bradley, KW, Curran, WS, Davis, AS, Everman, WJ, Flessner, ML, Haring, SC, Jordan, NR, Korres, NE, Lindquist, JL, Norsworthy, JK, Sanders, TL, Steckel, LE, Vangessel, MJ, Young, B & Mirsky, SB 2022, 'Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter', Weed Science, vol. 70, no. 1, pp. 79-86. https://doi.org/10.1017/wsc.2021.74

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abstract = "Seed retention, and ultimately seed shatter, are extremely important for the efficacy of harvest weed seed control (HWSC) and are likely influenced by various agroecological and environmental factors. Field studies investigated seed-shattering phenology of 22 weed species across three soybean [Glycine max (L.) Merr.]-producing regions in the United States. We further evaluated the potential drivers of seed shatter in terms of weather conditions, growing degree days, and plant biomass. Based on the results, weather conditions had no consistent impact on weed seed shatter. However, there was a positive correlation between individual weed plant biomass and delayed weed seed-shattering rates during harvest. This work demonstrates that HWSC can potentially reduce weed seedbank inputs of plants that have escaped early-season management practices and retained seed through harvest. However, smaller individuals of plants within the same population that shatter seed before harvest pose a risk of escaping early-season management and HWSC.",

keywords = "Environmental impacts, harvest weed seed control, herbicide resistance management, integrated weed management, soil seedbank, weed biology, weed ecology",

author = "Schwartz-Lazaro, {Lauren M.} and Shergill, {Lovreet S.} and Evans, {Jeffrey A.} and Bagavathiannan, {Muthukumar V.} and Beam, {Shawn C.} and Bish, {Mandy D.} and Bond, {Jason A.} and Bradley, {Kevin W.} and Curran, {William S.} and Davis, {Adam S.} and Everman, {Wesley J.} and Flessner, {Michael L.} and Haring, {Steven C.} and Jordan, {Nicholas R.} and Korres, {Nicholas E.} and Lindquist, {John L.} and Norsworthy, {Jason K.} and Sanders, {Tameka L.} and Steckel, {Larry E.} and Vangessel, {Mark J.} and Blake Young and Mirsky, {Steven B.}",

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month = jan,

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doi = "10.1017/wsc.2021.74",

language = "English (US)",

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T2 - Drivers of seed shatter

AU - Schwartz-Lazaro, Lauren M.

AU - Shergill, Lovreet S.

AU - Evans, Jeffrey A.

AU - Bagavathiannan, Muthukumar V.

AU - Beam, Shawn C.

AU - Bish, Mandy D.

AU - Bond, Jason A.

AU - Bradley, Kevin W.

AU - Curran, William S.

AU - Davis, Adam S.

AU - Everman, Wesley J.

AU - Flessner, Michael L.

AU - Haring, Steven C.

AU - Jordan, Nicholas R.

AU - Korres, Nicholas E.

AU - Lindquist, John L.

AU - Norsworthy, Jason K.

AU - Sanders, Tameka L.

AU - Steckel, Larry E.

AU - Vangessel, Mark J.

AU - Young, Blake

AU - Mirsky, Steven B.

PY - 2022/1/15

Y1 - 2022/1/15

N2 - Seed retention, and ultimately seed shatter, are extremely important for the efficacy of harvest weed seed control (HWSC) and are likely influenced by various agroecological and environmental factors. Field studies investigated seed-shattering phenology of 22 weed species across three soybean [Glycine max (L.) Merr.]-producing regions in the United States. We further evaluated the potential drivers of seed shatter in terms of weather conditions, growing degree days, and plant biomass. Based on the results, weather conditions had no consistent impact on weed seed shatter. However, there was a positive correlation between individual weed plant biomass and delayed weed seed-shattering rates during harvest. This work demonstrates that HWSC can potentially reduce weed seedbank inputs of plants that have escaped early-season management practices and retained seed through harvest. However, smaller individuals of plants within the same population that shatter seed before harvest pose a risk of escaping early-season management and HWSC.

AB - Seed retention, and ultimately seed shatter, are extremely important for the efficacy of harvest weed seed control (HWSC) and are likely influenced by various agroecological and environmental factors. Field studies investigated seed-shattering phenology of 22 weed species across three soybean [Glycine max (L.) Merr.]-producing regions in the United States. We further evaluated the potential drivers of seed shatter in terms of weather conditions, growing degree days, and plant biomass. Based on the results, weather conditions had no consistent impact on weed seed shatter. However, there was a positive correlation between individual weed plant biomass and delayed weed seed-shattering rates during harvest. This work demonstrates that HWSC can potentially reduce weed seedbank inputs of plants that have escaped early-season management practices and retained seed through harvest. However, smaller individuals of plants within the same population that shatter seed before harvest pose a risk of escaping early-season management and HWSC.

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KW - herbicide resistance management

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KW - soil seedbank

KW - weed biology

KW - weed ecology

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Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter

Abstract

Bibliographical note

Keywords

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