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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/09/2016 |
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Data da última atualização: |
28/09/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MONDO, V. H. V.; NASCENTE, A. S.; NEVES, P. de C. F.; TAILLEBOIS, J. E.; CARDOSO NETO, M. O. |
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Afiliação: |
VITOR HENRIQUE VAZ MONDO, CNPAF; ADRIANO STEPHAN NASCENTE, CNPAF; PERICLES DE CARVALHO FERREIRA NEVES, CNPAF; JAMES EMILE TAILLEBOIS, CIRAD; MANOEL OLIVEIRA CARDOSO NETO, Uni-Anhanguera, Goiânia-GO. |
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Título: |
Flowering synchronization in hybrid rice parental lines. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 10, n. 8, p. 1213-1221, 2016. |
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ISSN: |
1835-2707 |
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Idioma: |
Inglês |
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Conteúdo: |
The cultivation of hybrid rice is a technology that allows for an increase in grain yield of 30% relative to the grain yield of conventional cultivars. However, the main challenge for this technology is related to seed production, which has high production costs and low seed yields. Therefore, agronomic techniques that could enhance flowering synchrony of parental lines in the field are essential for an efficient production system of hybrid rice seeds. The objective of this work was to study the effects of sowing depth, plant density and fertilization with nitrogen or phosphorus as potential techniques to increase the pollen availability in the field and, consequently, the flowering synchrony between parental lines in the production of hybrid rice seeds. The experiments were conducted during two growing seasons in the Central Region of Brazil. All of the experiments were conducted as a randomized complete block in a split plot scheme; however, the experiment with P fertilization had a factorial design. Our research allow inferring that nitrogen fertilization technique applied to the soil or foliar at the time of panicle differentiation does not affect the time of onset of flowering of rice varieties INTA Puitá CL and L106R, which are potential R lines for the production of hybrid rice. Agronomic techniques of variation in sowing depth, seeding rate and the phosphate fertilization affect the time of onset of flowering from 10 to 19 degree-days, which could represent two days in the crop cycle, for the line L106R. Such techniques constitute potential alternatives for use in hybrid rice seed production systems and could be applied in alternated blocks of R lines in the field to obtain longer periods of pollen availability in the field. MenosThe cultivation of hybrid rice is a technology that allows for an increase in grain yield of 30% relative to the grain yield of conventional cultivars. However, the main challenge for this technology is related to seed production, which has high production costs and low seed yields. Therefore, agronomic techniques that could enhance flowering synchrony of parental lines in the field are essential for an efficient production system of hybrid rice seeds. The objective of this work was to study the effects of sowing depth, plant density and fertilization with nitrogen or phosphorus as potential techniques to increase the pollen availability in the field and, consequently, the flowering synchrony between parental lines in the production of hybrid rice seeds. The experiments were conducted during two growing seasons in the Central Region of Brazil. All of the experiments were conducted as a randomized complete block in a split plot scheme; however, the experiment with P fertilization had a factorial design. Our research allow inferring that nitrogen fertilization technique applied to the soil or foliar at the time of panicle differentiation does not affect the time of onset of flowering of rice varieties INTA Puitá CL and L106R, which are potential R lines for the production of hybrid rice. Agronomic techniques of variation in sowing depth, seeding rate and the phosphate fertilization affect the time of onset of flowering from 10 to 19 degree-days, which could represent two days ... Mostrar Tudo |
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Palavras-Chave: |
Arroz híbrido. |
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Thesagro: |
Arroz; Floração; Oryza sativa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/147065/1/CNPAF-2016-vhvm.pdf
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Marc: |
LEADER 02408naa a2200229 a 4500
001 2052367
005 2016-09-28
008 2016 bl uuuu u00u1 u #d
022 $a1835-2707
100 1 $aMONDO, V. H. V.
245 $aFlowering synchronization in hybrid rice parental lines.$h[electronic resource]
260 $c2016
520 $aThe cultivation of hybrid rice is a technology that allows for an increase in grain yield of 30% relative to the grain yield of conventional cultivars. However, the main challenge for this technology is related to seed production, which has high production costs and low seed yields. Therefore, agronomic techniques that could enhance flowering synchrony of parental lines in the field are essential for an efficient production system of hybrid rice seeds. The objective of this work was to study the effects of sowing depth, plant density and fertilization with nitrogen or phosphorus as potential techniques to increase the pollen availability in the field and, consequently, the flowering synchrony between parental lines in the production of hybrid rice seeds. The experiments were conducted during two growing seasons in the Central Region of Brazil. All of the experiments were conducted as a randomized complete block in a split plot scheme; however, the experiment with P fertilization had a factorial design. Our research allow inferring that nitrogen fertilization technique applied to the soil or foliar at the time of panicle differentiation does not affect the time of onset of flowering of rice varieties INTA Puitá CL and L106R, which are potential R lines for the production of hybrid rice. Agronomic techniques of variation in sowing depth, seeding rate and the phosphate fertilization affect the time of onset of flowering from 10 to 19 degree-days, which could represent two days in the crop cycle, for the line L106R. Such techniques constitute potential alternatives for use in hybrid rice seed production systems and could be applied in alternated blocks of R lines in the field to obtain longer periods of pollen availability in the field.
650 $aArroz
650 $aFloração
650 $aOryza sativa
653 $aArroz híbrido
700 1 $aNASCENTE, A. S.
700 1 $aNEVES, P. de C. F.
700 1 $aTAILLEBOIS, J. E.
700 1 $aCARDOSO NETO, M. O.
773 $tAustralian Journal of Crop Science$gv. 10, n. 8, p. 1213-1221, 2016.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
30/01/2003 |
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Data da última atualização: |
26/07/2019 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
PEIXOTO, S. E. A. A.; SOUZA, C. L. A. de; OLIVEIRA, C. A. V.; CARVALHO, B. C. L. de. |
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Afiliação: |
CARLOS ALBERTO VASCONCELOS OLIVEIRA, CPATSA. |
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Título: |
Sistemas agrícolas dos pequenos produtores do município de Euclides da Cunha-BA. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Petrolina: Embrapa Semi-Árido, 2001. |
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Páginas: |
63 p. |
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Série: |
(Embrapa Semi-Árido. Documentos, 155). |
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Idioma: |
Português |
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Conteúdo: |
Caracterização dos aspectos sócio-econômicos e dos recursos naturais: Unidades de paisagem geoambiental - Bacias Sedimentares, Tabuleiros Baixos e Entalhes Associados de Sátiro Dias e Ribeira do Pombal, Tabuleiros do Raso da Catarina, Superfícies Cársticas, Platôs de Irecê, Várzea Nova, Euclides da Cunha e Paripiranga, Depressão Sertaneja, Áreas de Pediplano do Sertão Central da Bhia (Ipirá); Discussão dos resultados; Tecnologias geradas. |
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Palavras-Chave: |
Aspecto sócio-econômico; Bahia; Brasil; Euclides da Cunha; Recursos naturais; Sistema agrícola; Sistema agrícola - pequeno produtor - Brasil - Bahia - Euclides da Cunha; Sistema agrícola de produção; Tipificação. |
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Thesagro: |
Agricultura de Subsistência; Agricultura Familiar; Desenvolvimento Rural; Pequeno Produtor; Política Agrícola; Produtor. |
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Thesaurus NAL: |
Rural development. |
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Categoria do assunto: |
--
B Sociologia Rural |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA/25787/1/SDC155.pdf
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Marc: |
LEADER 01576nam a2200361 a 4500
001 1151148
005 2019-07-26
008 2001 bl uuuu 00u1 u #d
100 1 $aPEIXOTO, S. E. A. A.
245 $aSistemas agrícolas dos pequenos produtores do município de Euclides da Cunha-BA.
260 $aPetrolina: Embrapa Semi-Árido$c2001
300 $a63 p.
490 $a(Embrapa Semi-Árido. Documentos, 155).
520 $aCaracterização dos aspectos sócio-econômicos e dos recursos naturais: Unidades de paisagem geoambiental - Bacias Sedimentares, Tabuleiros Baixos e Entalhes Associados de Sátiro Dias e Ribeira do Pombal, Tabuleiros do Raso da Catarina, Superfícies Cársticas, Platôs de Irecê, Várzea Nova, Euclides da Cunha e Paripiranga, Depressão Sertaneja, Áreas de Pediplano do Sertão Central da Bhia (Ipirá); Discussão dos resultados; Tecnologias geradas.
650 $aRural development
650 $aAgricultura de Subsistência
650 $aAgricultura Familiar
650 $aDesenvolvimento Rural
650 $aPequeno Produtor
650 $aPolítica Agrícola
650 $aProdutor
653 $aAspecto sócio-econômico
653 $aBahia
653 $aBrasil
653 $aEuclides da Cunha
653 $aRecursos naturais
653 $aSistema agrícola
653 $aSistema agrícola - pequeno produtor - Brasil - Bahia - Euclides da Cunha
653 $aSistema agrícola de produção
653 $aTipificação
700 1 $aSOUZA, C. L. A. de
700 1 $aOLIVEIRA, C. A. V.
700 1 $aCARVALHO, B. C. L. de
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Embrapa Semiárido (CPATSA) |
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