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Registro Completo |
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
04/08/2015 |
Data da última atualização: |
13/10/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PAULA NETO, A.; FAVARIN, J. L.; REIS, A. R. dos; TEZOTTO, T.; ALMEIDA, R. E. M. de; LAVRES JUNIOR, J.; GALLO, L. A. |
Afiliação: |
ANA PAULA NETO, ESALQ; JOSE LAERCIO FAVARIN, ESALQ; ANDRE RODRIGUES DOS REIS, UNESP; TIAGO TEZOTTO, ESALQ; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; JOSE LAVRES JUNIOR, CENA; LUIZ ANTONIO GALLO, ESALQ. |
Título: |
Nitrogen metabolism in coffee plants in response to nitrogen supply by fertigation. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Theoretical and Experimental Plant Physiology, v. 27, n. 1, p. 41-50, Mar. 2015. |
DOI: |
10.1007/s40626-014-0030-2 |
Idioma: |
Inglês |
Conteúdo: |
Coffee plants require high application rates of nitrogen (N) to produce coffee beans. However, information regarding plant N uptake and assimilation under intensive high-technology cultivation systems is scarce, a situation which restrains the maximizing productivity with minimal N rates. The aim of this study was to evaluate N assimilation enzymes such as nitrate reductase (EC 1.6.6.1), glutamine synthetase (EC 6.3.1.2), urease (EC 3.5.1.5), and N compounds of coffee plants during a phenological cycle in response to N applied by fertigation. Our study was carried out with 7-year-old trees of Coffea arabica L., under a center pivot sprinkler irrigation and fertigation system, with five N rates (0, 200, 400, 600, and 800 kg ha−1) applied to the coffee field. The results of the present study suggest that both N metabolism enzymes, and the content of nitrate and ammonium in coffee were directly related to the phenological cycle. The N fertigation rates are correlated with the N and amino acid contente. Nitrate reductase and urease showed higher activities before anthesis and during grain filling. Glutamine synthetase showed highest activities during rapid grain expansion. The data also indicate that there is merit in gaining greater understanding of N metabolism in coffee plants grown under high-intensive systems. There is therefore merit in conducting further research on how monitoring the N assimilation enzymes might be used to improve fertilizer management of coffee in commercial orchards. MenosCoffee plants require high application rates of nitrogen (N) to produce coffee beans. However, information regarding plant N uptake and assimilation under intensive high-technology cultivation systems is scarce, a situation which restrains the maximizing productivity with minimal N rates. The aim of this study was to evaluate N assimilation enzymes such as nitrate reductase (EC 1.6.6.1), glutamine synthetase (EC 6.3.1.2), urease (EC 3.5.1.5), and N compounds of coffee plants during a phenological cycle in response to N applied by fertigation. Our study was carried out with 7-year-old trees of Coffea arabica L., under a center pivot sprinkler irrigation and fertigation system, with five N rates (0, 200, 400, 600, and 800 kg ha−1) applied to the coffee field. The results of the present study suggest that both N metabolism enzymes, and the content of nitrate and ammonium in coffee were directly related to the phenological cycle. The N fertigation rates are correlated with the N and amino acid contente. Nitrate reductase and urease showed higher activities before anthesis and during grain filling. Glutamine synthetase showed highest activities during rapid grain expansion. The data also indicate that there is merit in gaining greater understanding of N metabolism in coffee plants grown under high-intensive systems. There is therefore merit in conducting further research on how monitoring the N assimilation enzymes might be used to improve fertilizer management of coffee in... Mostrar Tudo |
Thesagro: |
Café; Coffea Arábica; Nitrogênio; Uréia. |
Thesaurus Nal: |
Fertigation; Glutamate-ammonia ligase. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127447/1/CNPASA2015-1.pdf
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Marc: |
LEADER 02343naa a2200277 a 4500 001 2021311 005 2017-10-13 008 2015 bl uuuu u00u1 u #d 024 7 $a10.1007/s40626-014-0030-2$2DOI 100 1 $aPAULA NETO, A. 245 $aNitrogen metabolism in coffee plants in response to nitrogen supply by fertigation.$h[electronic resource] 260 $c2015 520 $aCoffee plants require high application rates of nitrogen (N) to produce coffee beans. However, information regarding plant N uptake and assimilation under intensive high-technology cultivation systems is scarce, a situation which restrains the maximizing productivity with minimal N rates. The aim of this study was to evaluate N assimilation enzymes such as nitrate reductase (EC 1.6.6.1), glutamine synthetase (EC 6.3.1.2), urease (EC 3.5.1.5), and N compounds of coffee plants during a phenological cycle in response to N applied by fertigation. Our study was carried out with 7-year-old trees of Coffea arabica L., under a center pivot sprinkler irrigation and fertigation system, with five N rates (0, 200, 400, 600, and 800 kg ha−1) applied to the coffee field. The results of the present study suggest that both N metabolism enzymes, and the content of nitrate and ammonium in coffee were directly related to the phenological cycle. The N fertigation rates are correlated with the N and amino acid contente. Nitrate reductase and urease showed higher activities before anthesis and during grain filling. Glutamine synthetase showed highest activities during rapid grain expansion. The data also indicate that there is merit in gaining greater understanding of N metabolism in coffee plants grown under high-intensive systems. There is therefore merit in conducting further research on how monitoring the N assimilation enzymes might be used to improve fertilizer management of coffee in commercial orchards. 650 $aFertigation 650 $aGlutamate-ammonia ligase 650 $aCafé 650 $aCoffea Arábica 650 $aNitrogênio 650 $aUréia 700 1 $aFAVARIN, J. L. 700 1 $aREIS, A. R. dos 700 1 $aTEZOTTO, T. 700 1 $aALMEIDA, R. E. M. de 700 1 $aLAVRES JUNIOR, J. 700 1 $aGALLO, L. A. 773 $tTheoretical and Experimental Plant Physiology$gv. 27, n. 1, p. 41-50, Mar. 2015.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
12/01/2024 |
Data da última atualização: |
12/01/2024 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CRUZ, A. F. da; OLIVEIRA, J. S. de; SANTOS, E. M.; ARAUJO, G. G. L. de; CAMPOS, F. S.; SANTOS, N. S.; SOBRAL, G. de C.; VIEIRA, D. de S. |
Afiliação: |
ANTONIEL FLORENCIO DA CRUZ, Doutando da UFPB; JULIANA SILVA DE OLIVEIRA, Docente da UFPB; EDSON MAURO SANTOS, Docente da UFPB; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; FLEMING SENA CAMPOS, Bolsista CNPq; NEILSON SILVA SANTOS, Doutoranda da UFPB; GILBERTO DE CARVALHO SOBRAL, Doutorando da UFPB; DIEGO DE SOUSA VIEIRA, Doutorando da UFPB. |
Título: |
Rendimento de carcaça de ovinos confinados com dietas a base de silagem de sorgo realocada e níveis de concentrado. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 32., 2023, Natal. Anais... Natal: UFERSA, 2023. |
Idioma: |
Português |
Conteúdo: |
O trabalho objetivou avaliar a inclusão de níveis de concentrado em dietas com silagem de sorgo realocada sobre o rendimento da carcaça de ovinos confinados. |
Palavras-Chave: |
Rendimento da carcaça; Silagem de sorgo; Zootec2023. |
Thesagro: |
Confinamento; Fibra; Fibra Animal; Nutrição Animal; Ovino; Ruminante; Silagem. |
Thesaurus NAL: |
Animal nutrition. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160744/1/RENDIMENTO-DE-CARCACA-DE-OVINOS-CONFINADOS-COM-DIETas-2023.pdf
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Marc: |
LEADER 01134nam a2200325 a 4500 001 2160744 005 2024-01-12 008 2023 bl uuuu u00u1 u #d 100 1 $aCRUZ, A. F. da 245 $aRendimento de carcaça de ovinos confinados com dietas a base de silagem de sorgo realocada e níveis de concentrado.$h[electronic resource] 260 $aIn: CONGRESSO BRASILEIRO DE ZOOTECNIA, 32., 2023, Natal. Anais... Natal: UFERSA$c2023 520 $aO trabalho objetivou avaliar a inclusão de níveis de concentrado em dietas com silagem de sorgo realocada sobre o rendimento da carcaça de ovinos confinados. 650 $aAnimal nutrition 650 $aConfinamento 650 $aFibra 650 $aFibra Animal 650 $aNutrição Animal 650 $aOvino 650 $aRuminante 650 $aSilagem 653 $aRendimento da carcaça 653 $aSilagem de sorgo 653 $aZootec2023 700 1 $aOLIVEIRA, J. S. de 700 1 $aSANTOS, E. M. 700 1 $aARAUJO, G. G. L. de 700 1 $aCAMPOS, F. S. 700 1 $aSANTOS, N. S. 700 1 $aSOBRAL, G. de C. 700 1 $aVIEIRA, D. de S.
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