| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
04/05/2016 |
|
Data da última atualização: |
03/03/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ALVAREZ, R. de C. F.; CRUSCIOL, C. A. C.; NASCENTE, A. S.; RODRIGUES, J. D.; HABERMANN, G.; PAIVA NETO, V. B. de. |
|
Afiliação: |
RITA DE CASSIA FELIX ALVAREZ, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP; ADRIANO STEPHAN NASCENTE, CNPAF; JOÃO DOMINGOS RODRIGUES, UNESP, Botucatu-SP; GUSTAVO HABERMANN, UNESP, Rio Claro-SP; VESPASIANO BORGES DE PAIVA NETO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL. |
|
Título: |
Trinexapac-ethyl affects growth and gas exchange of upland rice. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Revista Caatinga, Mossoró, v. 29, n. 2, p. 320-326, abr./jun. 2016. |
|
ISSN: |
1983-2125 |
|
Idioma: |
Inglês |
|
Conteúdo: |
A major problem affecting some upland rice cultivars is the increase in plant size when subjected to high doses of nitrogen fertilizer, leading to high levels of lodging. A method to reduce the height of upland rice, and therefore lodging, would be to use plant growth regulators. However, little information exists on the effect of these regulators on plant physiological processes. Therefore, the objective of this study was to evaluate the influence of trinexapac-ethyl application in upland rice via analysis of growth and gas exchange. The experiment was carried out under greenhouse conditions using the BRS Primavera cultivar. A completely randomized design with eight replications was used. Treatments were carried out with and without the application of the plant growth regulator, and plants were subject to two-stage assessments in which physiological and gas-exchange indices were measured. The use of trinexapac-ethyl improved the growth of rice plants from the flowering to the physiological maturity stage, resulting in higher values of leaf area ratio, specific leaf area, and leaf matter ratio in treated plants. At the same time, it provided smaller reduction in net CO2 assimilation at the physiological maturity stage. Thus, net/apparent assimilation rate did not change after the application of growth regulator, but relative growth rate decreased in these treated plants. These results indicate the occurrence of self-shading in rice plants induced by what might be a supra-optimum trinexapac-ethyl concentration. MenosA major problem affecting some upland rice cultivars is the increase in plant size when subjected to high doses of nitrogen fertilizer, leading to high levels of lodging. A method to reduce the height of upland rice, and therefore lodging, would be to use plant growth regulators. However, little information exists on the effect of these regulators on plant physiological processes. Therefore, the objective of this study was to evaluate the influence of trinexapac-ethyl application in upland rice via analysis of growth and gas exchange. The experiment was carried out under greenhouse conditions using the BRS Primavera cultivar. A completely randomized design with eight replications was used. Treatments were carried out with and without the application of the plant growth regulator, and plants were subject to two-stage assessments in which physiological and gas-exchange indices were measured. The use of trinexapac-ethyl improved the growth of rice plants from the flowering to the physiological maturity stage, resulting in higher values of leaf area ratio, specific leaf area, and leaf matter ratio in treated plants. At the same time, it provided smaller reduction in net CO2 assimilation at the physiological maturity stage. Thus, net/apparent assimilation rate did not change after the application of growth regulator, but relative growth rate decreased in these treated plants. These results indicate the occurrence of self-shading in rice plants induced by what might be a supra-opt... Mostrar Tudo |
|
Palavras-Chave: |
Processo fisiológico. |
|
Thesagro: |
Arroz; Fertilizante nitrogenado; Oryza sativa; Regulador de crescimento. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142781/1/CNPAF-2016-c.pdf
|
|
Marc: |
LEADER 02285naa a2200253 a 4500
001 2044456
005 2017-03-03
008 2016 bl uuuu u00u1 u #d
022 $a1983-2125
100 1 $aALVAREZ, R. de C. F.
245 $aTrinexapac-ethyl affects growth and gas exchange of upland rice.$h[electronic resource]
260 $c2016
520 $aA major problem affecting some upland rice cultivars is the increase in plant size when subjected to high doses of nitrogen fertilizer, leading to high levels of lodging. A method to reduce the height of upland rice, and therefore lodging, would be to use plant growth regulators. However, little information exists on the effect of these regulators on plant physiological processes. Therefore, the objective of this study was to evaluate the influence of trinexapac-ethyl application in upland rice via analysis of growth and gas exchange. The experiment was carried out under greenhouse conditions using the BRS Primavera cultivar. A completely randomized design with eight replications was used. Treatments were carried out with and without the application of the plant growth regulator, and plants were subject to two-stage assessments in which physiological and gas-exchange indices were measured. The use of trinexapac-ethyl improved the growth of rice plants from the flowering to the physiological maturity stage, resulting in higher values of leaf area ratio, specific leaf area, and leaf matter ratio in treated plants. At the same time, it provided smaller reduction in net CO2 assimilation at the physiological maturity stage. Thus, net/apparent assimilation rate did not change after the application of growth regulator, but relative growth rate decreased in these treated plants. These results indicate the occurrence of self-shading in rice plants induced by what might be a supra-optimum trinexapac-ethyl concentration.
650 $aArroz
650 $aFertilizante nitrogenado
650 $aOryza sativa
650 $aRegulador de crescimento
653 $aProcesso fisiológico
700 1 $aCRUSCIOL, C. A. C.
700 1 $aNASCENTE, A. S.
700 1 $aRODRIGUES, J. D.
700 1 $aHABERMANN, G.
700 1 $aPAIVA NETO, V. B. de
773 $tRevista Caatinga, Mossoró$gv. 29, n. 2, p. 320-326, abr./jun. 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
30/09/1998 |
|
Data da última atualização: |
31/01/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
AYARZA, M. A.; VILELA, L.; BARCELLOS, A. de O.; BALBINO, L. C.; BROSSARD, M.; PASINI, A. |
|
Afiliação: |
LUIZ CARLOS BALBINO, CNPAF. |
|
Título: |
Integration culture-elevage dans les cerrados au Bresil: une solution pour des systemes durables. |
|
Ano de publicação: |
1998 |
|
Fonte/Imprenta: |
Agriculture et Developpement, Montpellier, n. 18, p. 91-98, juin 1998. |
|
Idioma: |
Francês |
|
Conteúdo: |
Les systemes de production agricole des cerrados bresiliens presentent depuis quelques annees des problemes economiques et agronomiques dont les consequences sur le milieu sont mal evaluees. |
|
Palavras-Chave: |
Cultivo; Sistema sustentável. |
|
Thesagro: |
Agricultura; Cerrado; Leguminosa; Produção; Sistema de Produção. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00936naa a2200265 a 4500
001 1205229
005 2024-01-31
008 1998 bl uuuu u00u1 u #d
100 1 $aAYARZA, M. A.
245 $aIntegration culture-elevage dans les cerrados au Bresil$bune solution pour des systemes durables.
260 $c1998
520 $aLes systemes de production agricole des cerrados bresiliens presentent depuis quelques annees des problemes economiques et agronomiques dont les consequences sur le milieu sont mal evaluees.
650 $aAgricultura
650 $aCerrado
650 $aLeguminosa
650 $aProdução
650 $aSistema de Produção
653 $aCultivo
653 $aSistema sustentável
700 1 $aVILELA, L.
700 1 $aBARCELLOS, A. de O.
700 1 $aBALBINO, L. C.
700 1 $aBROSSARD, M.
700 1 $aPASINI, A.
773 $tAgriculture et Developpement, Montpellier$gn. 18, p. 91-98, juin 1998.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
