Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/s0100-83582017350100039 http://hdl.handle.net/11449/170010 |
Resumo: | Sourgrass is one of the most problematic weeds of Brazil. It is an aggressive species in the allocation of resources from the environment and reported to be glyphosate resistant in several states of the country. This work has aimed to verify environmental effects on seed germination and seedling emergence of sourgrass. Laboratory and field trials were conducted to determine the effects of temperature, light, photoperiod, water availability and depth of burial in germination and emergence of seeds. The maximum germination was greater than 80% for seed originated from resistant plants between 15 and 30 °C. For the susceptible ones, the maximum germination occurred only at 30 °C. Germination occurred for both biotypes independent of the presence of light. The best photoperiod for germination of both biotypes was between 8 and 14 hours. Seeds originated from resistant plants showed higher germination levels at low temperatures in the presence of light and in less water availability. There was no germination from -0,8 MPa for both biotypes. The emergence for both biotypes was low, indicating that seed burial could be used in the management of the species. Seeds from resistant plants showed higher and larger germination in temperatures, water content and depth of burial ranges than from originated from susceptible plants. |
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Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosateEffects of environmental factors on seed germination and emergence of glyphosate resistant and susceptible sourgrassDigitaria insularisPhotoperiodSeedsTemperatureWater availabilitySourgrass is one of the most problematic weeds of Brazil. It is an aggressive species in the allocation of resources from the environment and reported to be glyphosate resistant in several states of the country. This work has aimed to verify environmental effects on seed germination and seedling emergence of sourgrass. Laboratory and field trials were conducted to determine the effects of temperature, light, photoperiod, water availability and depth of burial in germination and emergence of seeds. The maximum germination was greater than 80% for seed originated from resistant plants between 15 and 30 °C. For the susceptible ones, the maximum germination occurred only at 30 °C. Germination occurred for both biotypes independent of the presence of light. The best photoperiod for germination of both biotypes was between 8 and 14 hours. Seeds originated from resistant plants showed higher germination levels at low temperatures in the presence of light and in less water availability. There was no germination from -0,8 MPa for both biotypes. The emergence for both biotypes was low, indicating that seed burial could be used in the management of the species. Seeds from resistant plants showed higher and larger germination in temperatures, water content and depth of burial ranges than from originated from susceptible plants.Universidade Estadual Paulista Júlio de Mesquita Filho UnespUniversidade Estadual Paulista Júlio de Mesquita Filho UnespUniversidade Estadual Paulista (Unesp)Martins, J. F. [UNESP]Barroso, A. A.M. [UNESP]Alves, P. L.C.A. [UNESP]2018-12-11T16:48:41Z2018-12-11T16:48:41Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-8application/pdfhttp://dx.doi.org/10.1590/s0100-83582017350100039Planta Daninha, v. 35, p. 1-8.0100-8358http://hdl.handle.net/11449/17001010.1590/s0100-83582017350100039S0100-835820170001002432-s2.0-85027012294S0100-83582017000100243.pdf01033835242882120000-0003-2348-2121Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninha0,365info:eu-repo/semantics/openAccess2023-10-18T06:10:16Zoai:repositorio.unesp.br:11449/170010Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-18T06:10:16Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate Effects of environmental factors on seed germination and emergence of glyphosate resistant and susceptible sourgrass |
title |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate |
spellingShingle |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate Martins, J. F. [UNESP] Digitaria insularis Photoperiod Seeds Temperature Water availability |
title_short |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate |
title_full |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate |
title_fullStr |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate |
title_full_unstemmed |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate |
title_sort |
Efeitos do ambiente na germinação e emergência de capim-amargoso resistente e suscetível ao glyphosate |
author |
Martins, J. F. [UNESP] |
author_facet |
Martins, J. F. [UNESP] Barroso, A. A.M. [UNESP] Alves, P. L.C.A. [UNESP] |
author_role |
author |
author2 |
Barroso, A. A.M. [UNESP] Alves, P. L.C.A. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Martins, J. F. [UNESP] Barroso, A. A.M. [UNESP] Alves, P. L.C.A. [UNESP] |
dc.subject.por.fl_str_mv |
Digitaria insularis Photoperiod Seeds Temperature Water availability |
topic |
Digitaria insularis Photoperiod Seeds Temperature Water availability |
description |
Sourgrass is one of the most problematic weeds of Brazil. It is an aggressive species in the allocation of resources from the environment and reported to be glyphosate resistant in several states of the country. This work has aimed to verify environmental effects on seed germination and seedling emergence of sourgrass. Laboratory and field trials were conducted to determine the effects of temperature, light, photoperiod, water availability and depth of burial in germination and emergence of seeds. The maximum germination was greater than 80% for seed originated from resistant plants between 15 and 30 °C. For the susceptible ones, the maximum germination occurred only at 30 °C. Germination occurred for both biotypes independent of the presence of light. The best photoperiod for germination of both biotypes was between 8 and 14 hours. Seeds originated from resistant plants showed higher germination levels at low temperatures in the presence of light and in less water availability. There was no germination from -0,8 MPa for both biotypes. The emergence for both biotypes was low, indicating that seed burial could be used in the management of the species. Seeds from resistant plants showed higher and larger germination in temperatures, water content and depth of burial ranges than from originated from susceptible plants. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T16:48:41Z 2018-12-11T16:48:41Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/s0100-83582017350100039 Planta Daninha, v. 35, p. 1-8. 0100-8358 http://hdl.handle.net/11449/170010 10.1590/s0100-83582017350100039 S0100-83582017000100243 2-s2.0-85027012294 S0100-83582017000100243.pdf 0103383524288212 0000-0003-2348-2121 |
url |
http://dx.doi.org/10.1590/s0100-83582017350100039 http://hdl.handle.net/11449/170010 |
identifier_str_mv |
Planta Daninha, v. 35, p. 1-8. 0100-8358 10.1590/s0100-83582017350100039 S0100-83582017000100243 2-s2.0-85027012294 S0100-83582017000100243.pdf 0103383524288212 0000-0003-2348-2121 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Planta Daninha 0,365 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-8 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1803046055708721152 |