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| 3. |  | BIONDI, D.; ARAUJO, A. J. de. Como realizar o melhoramento genetico de arvores urbanas. In: CONGRESSO FLORESTAL PANAMERICANO, 1.; CONGRESSO FLORESTAL BRASILEIRO, 7., 1993, Curitiba. Floresta para o Desenvolvimento: Política, Ambiente, Tecnologia e Mercado: anais. São Paulo: SBS; [S.l.]: SBEF, 1993. v. 2, p. 726. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 11. | | OLIVEIRA, D. A. de; ARAUJO, A. J. de; KLEINA, A. L. da S. Bancos genéticos de caxeta (Tabebuia cassinoides) implantados na planície litorânea do Paraná. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
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Data corrente: |
16/08/2021 |
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Data da última atualização: |
30/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
NASCENTE, A. S.; FAGUNDES, P. R. R.; MONDO, V. H. V.; LACERDA, M. C. |
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Afiliação: |
ADRIANO STEPHAN NASCENTE, CNPAF; PAULO RICARDO REIS FAGUNDES, CPACT; VITOR HENRIQUE VAZ MONDO, CNPTIA; MABIO CHRISLEY LACERDA, CNPAF. |
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Título: |
Proportion of parental line (A receptor and R pollinator) seeds improving rice hybrid production. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 43, e46269, 2021. |
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ISSN: |
1807-8621 |
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DOI: |
https://doi.org/10.4025/actasciagron.v43i1.46269 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT. The high price of rice hybrid seeds is one of the major limiting factors for increasing the use of this technology. An important step toward minimizing high rice hybrid seed cost is developing techniques that help improve hybrid seed yield. Our goal was to determine the proportion of seeds of line A (receptor) and line R (pollinator) that, under mixed sowing, would allow optimized rice hybrid seed production and grain quality. Trials were performed for two growing seasons in the southern region of Brazil. The cultivar INTA Puita was used as a pollinator and line 464 A as receptor. The experimental design was a randomized block with four replications. Treatments included six proportions of seeds of the INTA Puita (0.75, 1.5, 3.0, 6.0, 12.0, and 24.00%) mixture with seeds of line 464 A (99.25, 98.50, 97.00, 94.00, 88.00, and 76%, respectively). By increasing the percentage of the pollinator seeds (INTA Puita CL) from 0.75 to 24% in the mixture with the receptor (line 464 A), we increased yield of INTA Puita CL grains (7 to 2676 kg ha-1) and hybrid seeds (279 to 1493 kg ha-1). The mixture of different proportions of INTA Puita CL (pollinator) with the receptor (line 464 A) did not change the rice grain quality or the production cost. The cost of production per kg of hybrid seeds decreased quadratically with the increasing percentage of the pollinator (INTA Puita CL), from US$ 6.71 to US$ 1.23. Revenue achieved from the commercialization of the grains of INTA Puita CL with hybrid seeds 464 A showed quadratic increases with the increased percentage of INTA Puita cl in the mixture. Our results showed a potential technique that could be used to improve hybrid seed production, reduce cost per kg of hybrid seed and improve revenue from producing rice hybrid seeds. MenosABSTRACT. The high price of rice hybrid seeds is one of the major limiting factors for increasing the use of this technology. An important step toward minimizing high rice hybrid seed cost is developing techniques that help improve hybrid seed yield. Our goal was to determine the proportion of seeds of line A (receptor) and line R (pollinator) that, under mixed sowing, would allow optimized rice hybrid seed production and grain quality. Trials were performed for two growing seasons in the southern region of Brazil. The cultivar INTA Puita was used as a pollinator and line 464 A as receptor. The experimental design was a randomized block with four replications. Treatments included six proportions of seeds of the INTA Puita (0.75, 1.5, 3.0, 6.0, 12.0, and 24.00%) mixture with seeds of line 464 A (99.25, 98.50, 97.00, 94.00, 88.00, and 76%, respectively). By increasing the percentage of the pollinator seeds (INTA Puita CL) from 0.75 to 24% in the mixture with the receptor (line 464 A), we increased yield of INTA Puita CL grains (7 to 2676 kg ha-1) and hybrid seeds (279 to 1493 kg ha-1). The mixture of different proportions of INTA Puita CL (pollinator) with the receptor (line 464 A) did not change the rice grain quality or the production cost. The cost of production per kg of hybrid seeds decreased quadratically with the increasing percentage of the pollinator (INTA Puita CL), from US$ 6.71 to US$ 1.23. Revenue achieved from the commercialization of the grains of INTA Puita CL ... Mostrar Tudo |
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Palavras-Chave: |
Agronomic strategies; Arroz híbrido; Estratégias agronômicas; Macho estéril; Male sterile; Pollinator rates; Pollinator seeds; Produção de arroz híbrido; Sementes de arroz; Taxas de polinizador. |
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Thesagro: |
Arroz; Oryza Sativa; Semente. |
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Thesaurus NAL: |
Agronomic traits; Hybrids; Pollinators; Rice; Seed crop production; Seeds. |
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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/228277/1/as-2021.pdf
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Marc: |
LEADER 02975naa a2200409 a 4500
001 2136829
005 2021-11-30
008 2021 bl uuuu u00u1 u #d
022 $a1807-8621
024 7 $ahttps://doi.org/10.4025/actasciagron.v43i1.46269$2DOI
100 1 $aNASCENTE, A. S.
245 $aProportion of parental line (A receptor and R pollinator) seeds improving rice hybrid production.$h[electronic resource]
260 $c2021
520 $aABSTRACT. The high price of rice hybrid seeds is one of the major limiting factors for increasing the use of this technology. An important step toward minimizing high rice hybrid seed cost is developing techniques that help improve hybrid seed yield. Our goal was to determine the proportion of seeds of line A (receptor) and line R (pollinator) that, under mixed sowing, would allow optimized rice hybrid seed production and grain quality. Trials were performed for two growing seasons in the southern region of Brazil. The cultivar INTA Puita was used as a pollinator and line 464 A as receptor. The experimental design was a randomized block with four replications. Treatments included six proportions of seeds of the INTA Puita (0.75, 1.5, 3.0, 6.0, 12.0, and 24.00%) mixture with seeds of line 464 A (99.25, 98.50, 97.00, 94.00, 88.00, and 76%, respectively). By increasing the percentage of the pollinator seeds (INTA Puita CL) from 0.75 to 24% in the mixture with the receptor (line 464 A), we increased yield of INTA Puita CL grains (7 to 2676 kg ha-1) and hybrid seeds (279 to 1493 kg ha-1). The mixture of different proportions of INTA Puita CL (pollinator) with the receptor (line 464 A) did not change the rice grain quality or the production cost. The cost of production per kg of hybrid seeds decreased quadratically with the increasing percentage of the pollinator (INTA Puita CL), from US$ 6.71 to US$ 1.23. Revenue achieved from the commercialization of the grains of INTA Puita CL with hybrid seeds 464 A showed quadratic increases with the increased percentage of INTA Puita cl in the mixture. Our results showed a potential technique that could be used to improve hybrid seed production, reduce cost per kg of hybrid seed and improve revenue from producing rice hybrid seeds.
650 $aAgronomic traits
650 $aHybrids
650 $aPollinators
650 $aRice
650 $aSeed crop production
650 $aSeeds
650 $aArroz
650 $aOryza Sativa
650 $aSemente
653 $aAgronomic strategies
653 $aArroz híbrido
653 $aEstratégias agronômicas
653 $aMacho estéril
653 $aMale sterile
653 $aPollinator rates
653 $aPollinator seeds
653 $aProdução de arroz híbrido
653 $aSementes de arroz
653 $aTaxas de polinizador
700 1 $aFAGUNDES, P. R. R.
700 1 $aMONDO, V. H. V.
700 1 $aLACERDA, M. C.
773 $tActa Scientiarum. Agronomy$gv. 43, e46269, 2021.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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