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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
19/02/2008 |
Data da última atualização: |
19/02/2008 |
Autoria: |
ALENCAR, F. H.; YUYAMA, L. K. O.; VAREJÃO, M. de J. C.; MARINHO, H. A. |
Título: |
Determinantes e conseqüências da insegurança alimentar no Amazonas: a influência dos ecossistemas. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Acta Amazonica, Manaus, v. 37, n. 3, p. 413-418, set. 2007. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Desnutrição; Ecossitema amazônico; Insegureança alimentar; Potencial alimentar. |
Thesaurus Nal: |
Amazonia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00663naa a2200217 a 4500 001 1312522 005 2008-02-19 008 2007 bl uuuu u00u1 u #d 100 1 $aALENCAR, F. H. 245 $aDeterminantes e conseqüências da insegurança alimentar no Amazonas$ba influência dos ecossistemas. 260 $c2007 650 $aAmazonia 653 $aBrasil 653 $aDesnutrição 653 $aEcossitema amazônico 653 $aInsegureança alimentar 653 $aPotencial alimentar 700 1 $aYUYAMA, L. K. O. 700 1 $aVAREJÃO, M. de J. C. 700 1 $aMARINHO, H. A. 773 $tActa Amazonica, Manaus$gv. 37, n. 3, p. 413-418, set. 2007.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Caprinos e Ovinos. |
Data corrente: |
04/08/2021 |
Data da última atualização: |
04/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
LOPES, M. N.; GOMES, G. M. F.; MARANHÃO, T. D.; SILVEIRA, W. M.; POMPEU, R. C. F. F.; SILVA, R. G. da; BEZERRA, M. A.; CÂNDIDO, M. J. D. |
Afiliação: |
MARCOS NEVES LOPES, Instituto Federal de Educação, Ciência e Tecnologia do Piauí (IFPI) - Valença do Piauí, PI, Brasil; GIL MARIO FERREIRA GOMES, Instituto Federal de Educação, Ciência e Tecnologia do Piauí (IFPI) - Paulistana, PI, Brasil; THEYSON DUARTE MARANHÃO, Universidade de São Paulo (USP), Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ) - Piracicaba, SP, Brasil; WALISSON MARQUES SILVEIRA, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; RODRIGO GREGÓRIO DA SILVA, Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE) - Limoeiro do Norte, CE, Brasil; MARLOS ALVES BEZERRA, CNPAT; MAGNO JOSÉ DUARTE CÂNDIDO, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil. |
Título: |
Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 50, e20210012, 2021. |
DOI: |
https://doi.org/10.37496/rbz5020210012 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) associated with dry and rainy seasons on the photochemical activity of Opuntia ficus-indica (L.) Mill. cv. Gigante. Combinations of N (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha-1 yr-1) and P2O5 (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha -1 yr -1) were evaluated in the dry and rainy seasons in semi-arid regions. A completely randomized block design with split-plot arrangement was adopted with four replications. In Quixadá, the maximum potential quantum efficiency of photosystem II (Fv/Fm) was 0.82, observed in third-order cladodes (rainy season and N/P 75.6/10.0 kg ha -1 yr -1), while in Tejuçuoca, the maximum Fv/Fm was 0.81, found in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha -1 yr -1). In Quixadá, the maximum electron transport rate (ETR) was 31.6 -mol m -2 s -1 in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha -1 yr -1), and in Tejuçuoca, the maximum ETR was 24.1 -mol m -2 s -1, in second-order cladodes (rainy season and N/P 110.1/10.0 kg ha -1 yr -1). In Quixadá and Tejuçuoca, higher values of Fv/Fm and ETR were observed in the rainy season. In Quixadá, the maximum fluorescence decrease ratio (FDR) was 4.04 in third-order cladodes (rainy season and N/P 10.0/114.8 kg ha -1 yr -1), while in Tejuçuoca, the maximum FDR was 6.93, found in 2nd/3rd order cladodes (rainy season and N/P 190.0/10.0 kg ha -1 yr -1). In Quixadá and Tejuçuoca, there was predominance of higher FDR values in the rainy season. Nitrogen, phosphorus, and water status modulate the photochemical efficiency of cladodes of cactus pear cv. Gigante in semi-arid regions. MenosThis study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) associated with dry and rainy seasons on the photochemical activity of Opuntia ficus-indica (L.) Mill. cv. Gigante. Combinations of N (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha-1 yr-1) and P2O5 (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha -1 yr -1) were evaluated in the dry and rainy seasons in semi-arid regions. A completely randomized block design with split-plot arrangement was adopted with four replications. In Quixadá, the maximum potential quantum efficiency of photosystem II (Fv/Fm) was 0.82, observed in third-order cladodes (rainy season and N/P 75.6/10.0 kg ha -1 yr -1), while in Tejuçuoca, the maximum Fv/Fm was 0.81, found in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha -1 yr -1). In Quixadá, the maximum electron transport rate (ETR) was 31.6 -mol m -2 s -1 in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha -1 yr -1), and in Tejuçuoca, the maximum ETR was 24.1 -mol m -2 s -1, in second-order cladodes (rainy season and N/P 110.1/10.0 kg ha -1 yr -1). In Quixadá and Tejuçuoca, higher values of Fv/Fm and ETR were observed in the rainy season. In Quixadá, the maximum fluorescence decrease ratio (FDR) was 4.04 in third-order cladodes (rainy season and N/P 10.0/114.8 kg ha -1 yr -1), while in Tejuçuoca, the maximum FDR was 6.93, found in 2nd/3rd order cladodes (rainy season and N/P 190.0/10.0 kg ha -1 yr -1). In Quixadá and Tejuçuoca, there was predominance of higher ... Mostrar Tudo |
Palavras-Chave: |
Effective quantum efficiency of PSII; Electron transport rate; Feed crops; Fertilization. |
Thesagro: |
Opuntia Ficus Indica; Palma Forrageira; Planta Forrageira. |
Thesaurus NAL: |
Brazil; Forage crops; Opuntia ficus-indica; Semiarid soils; Water stress. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224800/1/CNPC-2021-Art-15.pdf
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Marc: |
LEADER 02764naa a2200361 a 4500 001 2133211 005 2021-08-04 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.37496/rbz5020210012$2DOI 100 1 $aLOPES, M. N. 245 $aPhotochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear.$h[electronic resource] 260 $c2021 520 $aThis study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) associated with dry and rainy seasons on the photochemical activity of Opuntia ficus-indica (L.) Mill. cv. Gigante. Combinations of N (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha-1 yr-1) and P2O5 (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha -1 yr -1) were evaluated in the dry and rainy seasons in semi-arid regions. A completely randomized block design with split-plot arrangement was adopted with four replications. In Quixadá, the maximum potential quantum efficiency of photosystem II (Fv/Fm) was 0.82, observed in third-order cladodes (rainy season and N/P 75.6/10.0 kg ha -1 yr -1), while in Tejuçuoca, the maximum Fv/Fm was 0.81, found in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha -1 yr -1). In Quixadá, the maximum electron transport rate (ETR) was 31.6 -mol m -2 s -1 in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha -1 yr -1), and in Tejuçuoca, the maximum ETR was 24.1 -mol m -2 s -1, in second-order cladodes (rainy season and N/P 110.1/10.0 kg ha -1 yr -1). In Quixadá and Tejuçuoca, higher values of Fv/Fm and ETR were observed in the rainy season. In Quixadá, the maximum fluorescence decrease ratio (FDR) was 4.04 in third-order cladodes (rainy season and N/P 10.0/114.8 kg ha -1 yr -1), while in Tejuçuoca, the maximum FDR was 6.93, found in 2nd/3rd order cladodes (rainy season and N/P 190.0/10.0 kg ha -1 yr -1). In Quixadá and Tejuçuoca, there was predominance of higher FDR values in the rainy season. Nitrogen, phosphorus, and water status modulate the photochemical efficiency of cladodes of cactus pear cv. Gigante in semi-arid regions. 650 $aBrazil 650 $aForage crops 650 $aOpuntia ficus-indica 650 $aSemiarid soils 650 $aWater stress 650 $aOpuntia Ficus Indica 650 $aPalma Forrageira 650 $aPlanta Forrageira 653 $aEffective quantum efficiency of PSII 653 $aElectron transport rate 653 $aFeed crops 653 $aFertilization 700 1 $aGOMES, G. M. F. 700 1 $aMARANHÃO, T. D. 700 1 $aSILVEIRA, W. M. 700 1 $aPOMPEU, R. C. F. F. 700 1 $aSILVA, R. G. da 700 1 $aBEZERRA, M. A. 700 1 $aCÂNDIDO, M. J. D. 773 $tRevista Brasileira de Zootecnia$gv. 50, e20210012, 2021.
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