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1. | | BENTEO, G. de L.; VERZIGNASSI, J. R.; FERNANDES, C. D.; VALLE, C. B. do; MACEDO, M. C. M.; LIBÓRIO, C. B. de; MOTEIRO, L. C. Productivity and quality of Brachiaria brizantha B4 seeds in function of nitrogen doses. Ciência Rural, Santa Maria, v. 46, n. 9, p. 1566-1571, set. 2016 Título em português: Produtividade e qualidade de sementes de Brachiaria brizantha B4 em função de doses de nitrogênio. Biblioteca(s): Embrapa Gado de Corte. |
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Registros recuperados : 1 | |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
20/02/2018 |
Data da última atualização: |
21/02/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
BENTEO, G. de L.; VERZIGNASSI, J. R.; FERNANDES, C. D.; VALLE, C. B. do; MACEDO, M. C. M.; LIBÓRIO, C. B. de; MOTEIRO, L. C. |
Afiliação: |
Gleiciane de Lima Benteo, Instituto Federal Goiano - IFG; JAQUELINE ROSEMEIRE VERZIGNASSI, CNPGC; CELSO DORNELAS FERNANDES, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MANUEL CLAUDIO MOTTA MACEDO, CNPGC; Cláudia Barrios de Libório, Instituto Federal Goiano - IFG; Lenise Castilho Monteiro, Instituto Federal Goiano - IFG. |
Título: |
Productivity and quality of Brachiaria brizantha B4 seeds in function of nitrogen doses. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Ciência Rural, Santa Maria, v. 46, n. 9, p. 1566-1571, set. 2016 |
Idioma: |
Inglês |
Notas: |
Título em português: Produtividade e qualidade de sementes de Brachiaria brizantha B4 em função de doses de nitrogênio. |
Conteúdo: |
This study aimed to evaluate aspects of reproductive phenology, yield components and seed quality of the B4 genotype of Brachiaria brizantha in function of nitrogen doses applied at pre-flowering. The experiment was carried out at Embrapa Beef Cattle, in a randomized block design, with seeding density of 2.59kg SPV ha-1 in the first year, in free growth plants. Urea was applied at pre-flowering at doses of 0, 25, 50, 75, 100, 125 and 150kg ha-1. The reproductive cycle of the plant lasts 225 days, with late flowering. N doses influenced the following characteristics: number of fully expanded inflorescences, percentage of dry matter, dry biomass, number of spikelets per raceme, seed yield, weight of a thousand seeds, germination, germination speed index, viability and germination at 10 months after harvest. The maximum yield of pure seed was 144.8kg ha-1 for 50kg ha-1 N, with maximum biological potential, based on components of seed yield of 456.27kg ha-1. Seeds presented high dormancy and reduced physiological quality in higher N doses. |
Palavras-Chave: |
Embrapa Gado de Corte; Qualidade de sementes; Tropical forage. |
Thesagro: |
Adubação; Forrageira tropical. |
Thesaurus NAL: |
Fertilizers; Phenology; Seed quality. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172874/1/15-Productivity-and-quality-of-Brachiaria-brizantha-B4-seeds-in-function-of-nitrogen-doses-2016.pdf
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Marc: |
LEADER 02048naa a2200301 a 4500 001 2087907 005 2018-02-21 008 2016 bl uuuu u00u1 u #d 100 1 $aBENTEO, G. de L. 245 $aProductivity and quality of Brachiaria brizantha B4 seeds in function of nitrogen doses.$h[electronic resource] 260 $c2016 500 $aTítulo em português: Produtividade e qualidade de sementes de Brachiaria brizantha B4 em função de doses de nitrogênio. 520 $aThis study aimed to evaluate aspects of reproductive phenology, yield components and seed quality of the B4 genotype of Brachiaria brizantha in function of nitrogen doses applied at pre-flowering. The experiment was carried out at Embrapa Beef Cattle, in a randomized block design, with seeding density of 2.59kg SPV ha-1 in the first year, in free growth plants. Urea was applied at pre-flowering at doses of 0, 25, 50, 75, 100, 125 and 150kg ha-1. The reproductive cycle of the plant lasts 225 days, with late flowering. N doses influenced the following characteristics: number of fully expanded inflorescences, percentage of dry matter, dry biomass, number of spikelets per raceme, seed yield, weight of a thousand seeds, germination, germination speed index, viability and germination at 10 months after harvest. The maximum yield of pure seed was 144.8kg ha-1 for 50kg ha-1 N, with maximum biological potential, based on components of seed yield of 456.27kg ha-1. Seeds presented high dormancy and reduced physiological quality in higher N doses. 650 $aFertilizers 650 $aPhenology 650 $aSeed quality 650 $aAdubação 650 $aForrageira tropical 653 $aEmbrapa Gado de Corte 653 $aQualidade de sementes 653 $aTropical forage 700 1 $aVERZIGNASSI, J. R. 700 1 $aFERNANDES, C. D. 700 1 $aVALLE, C. B. do 700 1 $aMACEDO, M. C. M. 700 1 $aLIBÓRIO, C. B. de 700 1 $aMOTEIRO, L. C. 773 $tCiência Rural, Santa Maria$gv. 46, n. 9, p. 1566-1571, set. 2016
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Embrapa Gado de Corte (CNPGC) |
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