WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0100-83582019370100105 http://hdl.handle.net/11449/208831 |
Resumo: | The aim of this research was to determine weed interference periods in sugarcane cultivated under the system of pre-sprouted seedlings, taking into account the impact on the final plant stand, and bud yield and stalk yield. In the field, this study used a randomized block design with 14 treatments and four replications. The treatments consisted of periods of control and weed coexistence with the sugarcane crop (cultivar IACSP95-5000): 30, 60, 90, 120, 150, 180, 210 and 240 days after planting. A phytosociological survey was carried out in the experimental area, and the species Merremia aegyptia, Urochloa decumbens and Nicandra physaloides were found to be predominant. At the end of 240 days, regression analysis was performed according to Boltzmann's sigmoidal model and considering loss tolerance of 5% in the evaluated variables. For final plant stand, the period prior to interference was 31 days and the total period of interference prevention was 187 days. For bud yield, the period prior to interference was 23 days and the total period of interference prevention was 178 days. For stalk yield, the period prior to interference was 19 days and the total period of interference prevention was 195 days. Weed interference was detrimental to all evaluated variables, with losses of up to 100% of the sugarcane plants after 120 days of weed coexistence. |
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spelling |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGSMerremia aegyptiaUrochloa decumbensweed competitioncritical periodsPSSSaccharum spp.The aim of this research was to determine weed interference periods in sugarcane cultivated under the system of pre-sprouted seedlings, taking into account the impact on the final plant stand, and bud yield and stalk yield. In the field, this study used a randomized block design with 14 treatments and four replications. The treatments consisted of periods of control and weed coexistence with the sugarcane crop (cultivar IACSP95-5000): 30, 60, 90, 120, 150, 180, 210 and 240 days after planting. A phytosociological survey was carried out in the experimental area, and the species Merremia aegyptia, Urochloa decumbens and Nicandra physaloides were found to be predominant. At the end of 240 days, regression analysis was performed according to Boltzmann's sigmoidal model and considering loss tolerance of 5% in the evaluated variables. For final plant stand, the period prior to interference was 31 days and the total period of interference prevention was 187 days. For bud yield, the period prior to interference was 23 days and the total period of interference prevention was 178 days. For stalk yield, the period prior to interference was 19 days and the total period of interference prevention was 195 days. Weed interference was detrimental to all evaluated variables, with losses of up to 100% of the sugarcane plants after 120 days of weed coexistence.Syngenta Protecao Cult Ltda, Estacao Expt Holambra, Holambra, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilCtr Avancado Pesquisa Cana, Inst Agron, Ribeirao Preto, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilUniv Federal VicosaSyngenta Protecao Cult LtdaUniversidade Estadual Paulista (Unesp)Ctr Avancado Pesquisa CanaAmaral, F. C. R.Nepomuceno, M. P. [UNESP]Chaves, A. R. C. S.Carlin, S. D.Azania, C. A. M.2021-06-25T11:21:53Z2021-06-25T11:21:53Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10application/pdfhttp://dx.doi.org/10.1590/S0100-83582019370100105Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 10 p., 2019.0100-8358http://hdl.handle.net/11449/20883110.1590/S0100-83582019370100105S0100-83582019000100197WOS:000572872200001S0100-83582019000100197.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninhainfo:eu-repo/semantics/openAccess2023-11-14T06:16:05Zoai:repositorio.unesp.br:11449/208831Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-14T06:16:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
title |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
spellingShingle |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS Amaral, F. C. R. Merremia aegyptia Urochloa decumbens weed competition critical periods PSS Saccharum spp. |
title_short |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
title_full |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
title_fullStr |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
title_full_unstemmed |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
title_sort |
WEED INTERFERENCE PERIODS IN PRE-SPROUTED SUGARCANE SEEDLINGS |
author |
Amaral, F. C. R. |
author_facet |
Amaral, F. C. R. Nepomuceno, M. P. [UNESP] Chaves, A. R. C. S. Carlin, S. D. Azania, C. A. M. |
author_role |
author |
author2 |
Nepomuceno, M. P. [UNESP] Chaves, A. R. C. S. Carlin, S. D. Azania, C. A. M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Syngenta Protecao Cult Ltda Universidade Estadual Paulista (Unesp) Ctr Avancado Pesquisa Cana |
dc.contributor.author.fl_str_mv |
Amaral, F. C. R. Nepomuceno, M. P. [UNESP] Chaves, A. R. C. S. Carlin, S. D. Azania, C. A. M. |
dc.subject.por.fl_str_mv |
Merremia aegyptia Urochloa decumbens weed competition critical periods PSS Saccharum spp. |
topic |
Merremia aegyptia Urochloa decumbens weed competition critical periods PSS Saccharum spp. |
description |
The aim of this research was to determine weed interference periods in sugarcane cultivated under the system of pre-sprouted seedlings, taking into account the impact on the final plant stand, and bud yield and stalk yield. In the field, this study used a randomized block design with 14 treatments and four replications. The treatments consisted of periods of control and weed coexistence with the sugarcane crop (cultivar IACSP95-5000): 30, 60, 90, 120, 150, 180, 210 and 240 days after planting. A phytosociological survey was carried out in the experimental area, and the species Merremia aegyptia, Urochloa decumbens and Nicandra physaloides were found to be predominant. At the end of 240 days, regression analysis was performed according to Boltzmann's sigmoidal model and considering loss tolerance of 5% in the evaluated variables. For final plant stand, the period prior to interference was 31 days and the total period of interference prevention was 187 days. For bud yield, the period prior to interference was 23 days and the total period of interference prevention was 178 days. For stalk yield, the period prior to interference was 19 days and the total period of interference prevention was 195 days. Weed interference was detrimental to all evaluated variables, with losses of up to 100% of the sugarcane plants after 120 days of weed coexistence. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2021-06-25T11:21:53Z 2021-06-25T11:21:53Z |
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/S0100-83582019370100105 Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 10 p., 2019. 0100-8358 http://hdl.handle.net/11449/208831 10.1590/S0100-83582019370100105 S0100-83582019000100197 WOS:000572872200001 S0100-83582019000100197.pdf |
url |
http://dx.doi.org/10.1590/S0100-83582019370100105 http://hdl.handle.net/11449/208831 |
identifier_str_mv |
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 10 p., 2019. 0100-8358 10.1590/S0100-83582019370100105 S0100-83582019000100197 WOS:000572872200001 S0100-83582019000100197.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Planta Daninha |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
10 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Vicosa |
publisher.none.fl_str_mv |
Univ Federal Vicosa |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
_version_ |
1799964935745175552 |