Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 2: Grass species

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dc.contributor.authorSchwartz-Lazaro, Lauren M.en
dc.contributor.authorShergill, Lovreet S.en
dc.contributor.authorEvans, Jeffrey A.en
dc.contributor.authorBagavathiannan, Muthukumar V.en
dc.contributor.authorBeam, Shawn C.en
dc.contributor.authorBish, Mandy D.en
dc.contributor.authorBond, Jason A.en
dc.contributor.authorBradley, Kevin W.en
dc.contributor.authorCurran, William S.en
dc.contributor.authorDavis, Adam S.en
dc.contributor.authorEverman, Wesley J.en
dc.contributor.authorFlessner, Michael L.en
dc.contributor.authorHaring, Steven C.en
dc.contributor.authorJordan, Nicholas R.en
dc.contributor.authorKorres, Nicholas E.en
dc.contributor.authorLindquist, John L.en
dc.contributor.authorNorsworthy, Jason K.en
dc.contributor.authorSanders, Tameka L.en
dc.contributor.authorSteckel, Larry E.en
dc.contributor.authorVanGessel, Mark J.en
dc.contributor.authorYoung, Blakeen
dc.contributor.authorMirsky, Steven B.en
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.date.accessioned2021-06-09T12:16:46Zen
dc.date.available2021-06-09T12:16:46Zen
dc.date.issued2021-01en
dc.description.abstractSeed shatter is an important weediness trait on which the efficacy of harvest weed seed control (HWSC) depends. The level of seed shatter in a species is likely influenced by agroecological and environmental factors. In 2016 and 2017, we assessed seed shatter of eight economically important grass weed species in soybean [Glycine max (L.) Merr.] from crop physiological maturity to 4 wk after maturity at multiple sites spread across 11 states in the southern, northern, and mid-Atlantic United States. From soybean maturity to 4 wk after maturity, cumulative percent seed shatter was lowest in the southern U.S. regions and increased moving north through the states. At soybean maturity, the percent of seed shatter ranged from 1% to 70%. That range had shifted to 5% to 100% (mean: 42%) by 25 d after soybean maturity. There were considerable differences in seed-shatter onset and rate of progression between sites and years in some species that could impact their susceptibility to HWSC. Our results suggest that many summer annual grass species are likely not ideal candidates for HWSC, although HWSC could substantially reduce their seed output during certain years.en
dc.description.notesWe would like to thank the staff and students at each university for helping conduct this research, specifically Kreshnik Bejleri, Sheri Heard, John Sanders, Barbara Scott, Annie Klodd, Zach Schaefer, Russ Garetson, Vitor Damiao, Matheus Martins, Camille Werner, Bruno Flaibam, and Camila Grassmann, and each institute's research and experimental stations. The authors would also like to thank the U.S. Department of Agriculture, Agricultural Research Service Areawide program for funding and the HATCH Program of the National Institute of Food and Agriculture and the U.S. Department of Agriculture for providing partial funding for this work. No conflicts of interest have been declared.en
dc.description.sponsorshipU.S. Department of Agriculture, Agricultural Research Service Areawide program; HATCH Program of the National Institute of Food and Agriculture; U.S. Department of AgricultureUnited States Department of Agriculture (USDA)en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1017/wsc.2020.79en
dc.identifier.eissn1550-2759en
dc.identifier.issn0043-1745en
dc.identifier.issue1en
dc.identifier.otherPII S004317452000079Xen
dc.identifier.urihttp://hdl.handle.net/10919/103718en
dc.identifier.volume69en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectEcologyen
dc.subjectharvest weed seed controlen
dc.subjectherbicide-resistance managementen
dc.subjectintegrated weed managementen
dc.subjectseed rainen
dc.subjectseed shatteren
dc.subjectsoil seedbanken
dc.subjectweed biologyen
dc.titleSeed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 2: Grass speciesen
dc.title.serialWeed Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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