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| Registros recuperados : 6 | |
| 3. |  | MONDO, V. H. V.; NASCENTE, A. S.; NEVES, P. de C. F.; TAILLEBOIS, J. E.; CARDOSO NETO, M. O. A. Formas de aplicação e doses de fósforo e efeitos na produtividade e no florescimento de linhagens parentais na produção de sementes de arroz híbrido. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 9., 2015, Pelotas. Ciência e tecnologia para otimização da orizicultura: anais. Brasília, DF: Embrapa; Pelotas: Sosbai, 2015.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 4. | | MONDO, V. H. V.; NASCENTE, A. S.; NEVES, P. de C. F.; TAILLEBOIS, J. E.; CARDOSO NETO, M. O. A. Formas e doses de aplicação de nitrogênio e efeitos no florescimento de linhagens parentais na produção de sementes de arroz híbrido. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 9., 2015, Pelotas. Ciência e tecnologia para otimização da orizicultura: anais. Brasília, DF: Embrapa; Pelotas: Sosbai, 2015.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 6. | | CARDOSO NETO, M. O. A.; MONDO, V. H. V.; OLIVEIRA, F. H. S.; NASCENTE, A. S.; LACERDA, M. C. Vigor de semente x desuniformidade de estabelecimento x produtividade de feijão-comum (Phaseolus vulgaris L.). In: SEMINÁRIO JOVENS TALENTOS, 9., 2015, Santo Antônio de Goiás. Coletânea dos resumos apresentados. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2015. p. 59. (Embrapa Arroz e Feijão. Documentos, 309).| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 6 | |
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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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Circulação/Nível: |
B - 1 |
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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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