Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante

Detalhes bibliográficos
Autor(a) principal: Garcia, Rodrigo Arroyo [UNESP]
Data de Publicação: 2009
Outros Autores: Gazola, Eduardo, Merlin, Alexandre [UNESP], Villas Boas, Roberto Lyra [UNESP], Costa Crusciol, Carlos Alexandre [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.seer.ufu.br/index.php/biosciencejournal/article/view/6956
http://hdl.handle.net/11449/5515
Resumo: The use of plant regulators that stimulate root growth can increase phosphorus uptake by upland rice. The objective of this study was to evaluate shoot and root growth of upland rice fertilized with different phosphorus doses with and without biostimulant. The experiment was carried out in greenhouse in the Faculdade de Ciencias Agronomicas-UNESP, in Botucatu-SP. The treatments consisted of six phosphorus doses applied in sowing (0, 12,5, 25, 50, 100 and 200 mg dm(-3)), with and without Stimulate (R) applied in the seeds (cv. Primavera). The plants were grown for 78 days and then cut at soil level to evaluate leaf area and leaves and collar dry matter. Root samples that were harvested on the same day had their root diameter and dry matter evaluated. The experimental design was the completely randomized, with three replications, arranged as a factorial 2x6. Variance analysis and regression were used to data evaluation. Linear and quadratic equations were adjusted at a probability level of 5%, using those with higher determination coefficient (R(2)). The increase on the phosphorus dose contributed to the lower matter production and leaf area of the plants when the biostimulant was applied. For shoot phosphorus accumulation and root evaluations, the same behavior was observed. It was concluded that the use of Stimulate (R) in seeds, for fitomass production or root system evaluation, was only efficient in low phosphorus doses.
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spelling Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulanteShoot and root growth of upland rice as affected by phosphorus fertilization and biostimulantRootPhosphorusStimulate (R)The use of plant regulators that stimulate root growth can increase phosphorus uptake by upland rice. The objective of this study was to evaluate shoot and root growth of upland rice fertilized with different phosphorus doses with and without biostimulant. The experiment was carried out in greenhouse in the Faculdade de Ciencias Agronomicas-UNESP, in Botucatu-SP. The treatments consisted of six phosphorus doses applied in sowing (0, 12,5, 25, 50, 100 and 200 mg dm(-3)), with and without Stimulate (R) applied in the seeds (cv. Primavera). The plants were grown for 78 days and then cut at soil level to evaluate leaf area and leaves and collar dry matter. Root samples that were harvested on the same day had their root diameter and dry matter evaluated. The experimental design was the completely randomized, with three replications, arranged as a factorial 2x6. Variance analysis and regression were used to data evaluation. Linear and quadratic equations were adjusted at a probability level of 5%, using those with higher determination coefficient (R(2)). The increase on the phosphorus dose contributed to the lower matter production and leaf area of the plants when the biostimulant was applied. For shoot phosphorus accumulation and root evaluations, the same behavior was observed. It was concluded that the use of Stimulate (R) in seeds, for fitomass production or root system evaluation, was only efficient in low phosphorus doses.O uso de fitorreguladores que estimulam maior crescimento radicular pode favorecer a absorção de fósforo em arroz cultivado no sistema de terras altas. Objetivou-se avaliar o crescimento aéreo e radicular de arroz submetido a diferentes doses de fósforo na presença e ausência de bioestimulante. O experimento foi conduzido em casa de vegetação da Faculdade de Ciências Agronômicas-UNESP, em Botucatu-SP. Os tratamentos constaram de 6 doses de P na semeadura (0, 12,5, 25, 50, 100 e 200 mg dm-3), na presença e ausência de Stimulate® aplicado via sementes (cultivar Primavera). Aos 78 dias após emergência, as plantas foram cortadas na altura do colo para determinação da área foliar e matéria seca de folhas e colmo. As amostras de raízes coletadas no mesmo dia tiveram o diâmetro médio radicular e massa da matéria seca determinadas. O delineamento experimental utilizado foi inteiramente casualizado, com três repetições, em esquema fatorial 2x6. Foram feitas análises de variância e regressão, e ajustaram-se equações lineares e quadráticas significativas até 5% de probabilidade pelo teste F, que apresentaram os maiores coeficientes de determinação (R2). Com o aumento das doses de P, a produção de massa e área foliar das plantas de arroz foi menor na presença do bioestimulante. Para o acúmulo de fósforo na parte aérea e determinações do sistema radicular, comportamento semelhante foi observado. Conclui-se que o uso de Stimulate® no tratamento de sementes, tanto para a produção de fitomassa como nas determinações do sistema radicular, foi eficiente apenas em baixas quantidades de adubo aplicado.Univ Estadual Paulista, FCA, Botucatu, SP, BrazilCATI Dept Sementes, Manduri, SP, BrazilUNESP, FCA, Dept Recursos Nat, Botucatu, SP, BrazilUNESP, FCA, Dept Prod Vegetal, Botucatu, SP, BrazilUniv Estadual Paulista, FCA, Botucatu, SP, BrazilUNESP, FCA, Dept Recursos Nat, Botucatu, SP, BrazilUNESP, FCA, Dept Prod Vegetal, Botucatu, SP, BrazilUniversidade Federal de Uberlândia (UFU)Universidade Estadual Paulista (Unesp)CATI Dept SementesGarcia, Rodrigo Arroyo [UNESP]Gazola, EduardoMerlin, Alexandre [UNESP]Villas Boas, Roberto Lyra [UNESP]Costa Crusciol, Carlos Alexandre [UNESP]2014-05-20T13:20:08Z2014-05-20T13:20:08Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article65-72application/pdfhttp://www.seer.ufu.br/index.php/biosciencejournal/article/view/6956Bioscience Journal. Uberlandia: Universidade Federal de Uberlândia (UFU), v. 25, n. 4, p. 65-72, 2009.1516-3725http://hdl.handle.net/11449/5515WOS:000269317400009WOS000269317400009.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBioscience Journal0,303info:eu-repo/semantics/openAccess2024-04-30T15:58:08Zoai:repositorio.unesp.br:11449/5515Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:47:41.159688Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
Shoot and root growth of upland rice as affected by phosphorus fertilization and biostimulant
title Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
spellingShingle Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
Garcia, Rodrigo Arroyo [UNESP]
Root
Phosphorus
Stimulate (R)
title_short Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
title_full Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
title_fullStr Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
title_full_unstemmed Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
title_sort Crescimento aéreo e radicular de arroz de terras altas em função da adubação fosfatada e bioestimulante
author Garcia, Rodrigo Arroyo [UNESP]
author_facet Garcia, Rodrigo Arroyo [UNESP]
Gazola, Eduardo
Merlin, Alexandre [UNESP]
Villas Boas, Roberto Lyra [UNESP]
Costa Crusciol, Carlos Alexandre [UNESP]
author_role author
author2 Gazola, Eduardo
Merlin, Alexandre [UNESP]
Villas Boas, Roberto Lyra [UNESP]
Costa Crusciol, Carlos Alexandre [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
CATI Dept Sementes
dc.contributor.author.fl_str_mv Garcia, Rodrigo Arroyo [UNESP]
Gazola, Eduardo
Merlin, Alexandre [UNESP]
Villas Boas, Roberto Lyra [UNESP]
Costa Crusciol, Carlos Alexandre [UNESP]
dc.subject.por.fl_str_mv Root
Phosphorus
Stimulate (R)
topic Root
Phosphorus
Stimulate (R)
description The use of plant regulators that stimulate root growth can increase phosphorus uptake by upland rice. The objective of this study was to evaluate shoot and root growth of upland rice fertilized with different phosphorus doses with and without biostimulant. The experiment was carried out in greenhouse in the Faculdade de Ciencias Agronomicas-UNESP, in Botucatu-SP. The treatments consisted of six phosphorus doses applied in sowing (0, 12,5, 25, 50, 100 and 200 mg dm(-3)), with and without Stimulate (R) applied in the seeds (cv. Primavera). The plants were grown for 78 days and then cut at soil level to evaluate leaf area and leaves and collar dry matter. Root samples that were harvested on the same day had their root diameter and dry matter evaluated. The experimental design was the completely randomized, with three replications, arranged as a factorial 2x6. Variance analysis and regression were used to data evaluation. Linear and quadratic equations were adjusted at a probability level of 5%, using those with higher determination coefficient (R(2)). The increase on the phosphorus dose contributed to the lower matter production and leaf area of the plants when the biostimulant was applied. For shoot phosphorus accumulation and root evaluations, the same behavior was observed. It was concluded that the use of Stimulate (R) in seeds, for fitomass production or root system evaluation, was only efficient in low phosphorus doses.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
2014-05-20T13:20:08Z
2014-05-20T13:20:08Z
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://www.seer.ufu.br/index.php/biosciencejournal/article/view/6956
Bioscience Journal. Uberlandia: Universidade Federal de Uberlândia (UFU), v. 25, n. 4, p. 65-72, 2009.
1516-3725
http://hdl.handle.net/11449/5515
WOS:000269317400009
WOS000269317400009.pdf
url http://www.seer.ufu.br/index.php/biosciencejournal/article/view/6956
http://hdl.handle.net/11449/5515
identifier_str_mv Bioscience Journal. Uberlandia: Universidade Federal de Uberlândia (UFU), v. 25, n. 4, p. 65-72, 2009.
1516-3725
WOS:000269317400009
WOS000269317400009.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Bioscience Journal
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv 65-72
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Uberlândia (UFU)
publisher.none.fl_str_mv Universidade Federal de Uberlândia (UFU)
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)
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