Thidiazuron increases upland rice yield

Detalhes bibliográficos
Autor(a) principal: Alves, Cleiton José
Data de Publicação: 2015
Outros Autores: Arf, Orivaldo, Garcia, Nayara Fernanda Siviero, Galindo, Fernando Shintate, Galassi, Arthur Dias
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/36754
Resumo: The use of plant growth regulators in rice can provide reductions in plant height and decrease plant lodging. This study aimed at verifying the influence of the thidiazuron plant regulator on upland rice in the Brazilian Savannah region. The BRS Esmeralda and IAC 202 cultivars were used, as well as a randomized blocks design, in a 4 x 3 factorial arrangement for each cultivar, consisting of thidiazuron doses (0 g ha-1, 0.3 g ha-1, 0.6 g ha-1 and 0.9 g ha-1) and three application times (tillering, floral differentiation and booting), with four replications. The number of spikelets per panicle and spikelet fertility of the BRS Esmeralda cultivar were higher when using the thidiazuron dose of 0.9 g ha-1 in the tillering stage. The weight of 100 grains of the BRS Esmeralda cultivar fitted a quadratic equation, while the IAC 202 fitted a linear equation, with the best time of application taking place during the tillering stage. For hectoliter weight, the results for the BRS Esmeralda also fitted a quadratic equation, while for the IAC 202 a significant difference was observed only among times, being the booting stage the best application time. Grain yield fitted a positive linear equation for both the BRS Esmeralda and IAC 202 cultivars, with gains of 23.5 % and 6.5 %, respectively, when compared to the control. Thidiazuron positively influences grain yield for upland rice.
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spelling Thidiazuron increases upland rice yieldThidiazuron aumenta a produtividade em arroz de terras altasOryza sativa L.plant regulatorcytokinin.Oryza sativa L.regulador vegetalcitocinina.The use of plant growth regulators in rice can provide reductions in plant height and decrease plant lodging. This study aimed at verifying the influence of the thidiazuron plant regulator on upland rice in the Brazilian Savannah region. The BRS Esmeralda and IAC 202 cultivars were used, as well as a randomized blocks design, in a 4 x 3 factorial arrangement for each cultivar, consisting of thidiazuron doses (0 g ha-1, 0.3 g ha-1, 0.6 g ha-1 and 0.9 g ha-1) and three application times (tillering, floral differentiation and booting), with four replications. The number of spikelets per panicle and spikelet fertility of the BRS Esmeralda cultivar were higher when using the thidiazuron dose of 0.9 g ha-1 in the tillering stage. The weight of 100 grains of the BRS Esmeralda cultivar fitted a quadratic equation, while the IAC 202 fitted a linear equation, with the best time of application taking place during the tillering stage. For hectoliter weight, the results for the BRS Esmeralda also fitted a quadratic equation, while for the IAC 202 a significant difference was observed only among times, being the booting stage the best application time. Grain yield fitted a positive linear equation for both the BRS Esmeralda and IAC 202 cultivars, with gains of 23.5 % and 6.5 %, respectively, when compared to the control. Thidiazuron positively influences grain yield for upland rice.A utilização de reguladores vegetais em arroz pode proporcionar redução na altura de plantas e diminuir o acamamento. Objetivou-se verificar a influência da aplicação do regulador vegetal thidiazuron na cultura do arroz de terras altas, em região de Cerrado brasileiro. Utilizaram-se as cultivares BRS Esmeralda e IAC 202, bem como delineamento experimental de blocos casualizados, em esquema fatorial 4 x 3 para cada cultivar, constituído de doses de thidiazuron (0 g ha-1; 0,3 g ha-1; 0,6 g ha-1; e 0,9 g ha-1) e três épocas de aplicação (perfilhamento, diferenciação floral e emborrachamento), com quatro repetições. O número de espiguetas por panícula e fertilidade das espiguetas da cultivar BRS Esmeralda foram maiores utilizando-se a dose de 0,9 g ha-1 de thidiazuron, com aplicação na fase de perfilhamento. A massa de 100 grãos da BRS Esmeralda se ajustou a uma equação quadrática, enquanto, para a IAC 202, houve ajuste a uma equação linear, com melhor época de aplicação durante o perfilhamento. Para massa hectolítrica da BRS Esmeralda, os resultados também se ajustaram a uma equação quadrática, enquanto, para a IAC 202, houve diferença significativa apenas entre as épocas, sendo o emborrachamento a melhor época de aplicação. As produtividades de grãos da BRS Esmeralda e IAC 202 apresentaram ajuste linear positivo, com ganhos de 23,5 % e 6,5 %, respectivamente, em relação à testemunha. O thidiazuron influencia positivamente na produtividade da cultura do arroz de terras altas.Escola de Agronomia - Universidade Federal de Goiás2015-09-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufg.br/pat/article/view/36754Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 45, n. 3, Jul./Sep. 2015; 333-339Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 45, n. 3, jul./set. 2015; 333-339Pesquisa Agropecuária Tropical; v. 45, n. 3, jul./set. 2015; 333-3391983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/36754/18993Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessAlves, Cleiton JoséArf, OrivaldoGarcia, Nayara Fernanda SivieroGalindo, Fernando ShintateGalassi, Arthur Dias2020-07-13T16:26:30Zoai:ojs.revistas.ufg.br:article/36754Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:09.387631Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Thidiazuron increases upland rice yield
Thidiazuron aumenta a produtividade em arroz de terras altas
title Thidiazuron increases upland rice yield
spellingShingle Thidiazuron increases upland rice yield
Alves, Cleiton José
Oryza sativa L.
plant regulator
cytokinin.
Oryza sativa L.
regulador vegetal
citocinina.
title_short Thidiazuron increases upland rice yield
title_full Thidiazuron increases upland rice yield
title_fullStr Thidiazuron increases upland rice yield
title_full_unstemmed Thidiazuron increases upland rice yield
title_sort Thidiazuron increases upland rice yield
author Alves, Cleiton José
author_facet Alves, Cleiton José
Arf, Orivaldo
Garcia, Nayara Fernanda Siviero
Galindo, Fernando Shintate
Galassi, Arthur Dias
author_role author
author2 Arf, Orivaldo
Garcia, Nayara Fernanda Siviero
Galindo, Fernando Shintate
Galassi, Arthur Dias
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Alves, Cleiton José
Arf, Orivaldo
Garcia, Nayara Fernanda Siviero
Galindo, Fernando Shintate
Galassi, Arthur Dias
dc.subject.por.fl_str_mv Oryza sativa L.
plant regulator
cytokinin.
Oryza sativa L.
regulador vegetal
citocinina.
topic Oryza sativa L.
plant regulator
cytokinin.
Oryza sativa L.
regulador vegetal
citocinina.
description The use of plant growth regulators in rice can provide reductions in plant height and decrease plant lodging. This study aimed at verifying the influence of the thidiazuron plant regulator on upland rice in the Brazilian Savannah region. The BRS Esmeralda and IAC 202 cultivars were used, as well as a randomized blocks design, in a 4 x 3 factorial arrangement for each cultivar, consisting of thidiazuron doses (0 g ha-1, 0.3 g ha-1, 0.6 g ha-1 and 0.9 g ha-1) and three application times (tillering, floral differentiation and booting), with four replications. The number of spikelets per panicle and spikelet fertility of the BRS Esmeralda cultivar were higher when using the thidiazuron dose of 0.9 g ha-1 in the tillering stage. The weight of 100 grains of the BRS Esmeralda cultivar fitted a quadratic equation, while the IAC 202 fitted a linear equation, with the best time of application taking place during the tillering stage. For hectoliter weight, the results for the BRS Esmeralda also fitted a quadratic equation, while for the IAC 202 a significant difference was observed only among times, being the booting stage the best application time. Grain yield fitted a positive linear equation for both the BRS Esmeralda and IAC 202 cultivars, with gains of 23.5 % and 6.5 %, respectively, when compared to the control. Thidiazuron positively influences grain yield for upland rice.
publishDate 2015
dc.date.none.fl_str_mv 2015-09-24
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/36754
url https://revistas.ufg.br/pat/article/view/36754
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/36754/18993
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 45, n. 3, Jul./Sep. 2015; 333-339
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 45, n. 3, jul./set. 2015; 333-339
Pesquisa Agropecuária Tropical; v. 45, n. 3, jul./set. 2015; 333-339
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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