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Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
21/05/2014 |
Data da última atualização: |
08/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
NASSIF, D. S. P.; MARIN, F. R.; COSTA, L. G. |
Afiliação: |
DANIEL S. P. NASSIF, Esalq/USP; FABIO RICARDO MARIN, CNPTIA; LEANDRO G. COSTA, Esalq/USP. |
Título: |
Evapotranspiration and transpiration coupling to the atmosphere of sugarcane in southern Brazil: scaling up from leaf to field. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Sugar Tech, New Delhi, v. 16, n. 3, p. 250-254, July/Sept. 2014. |
DOI: |
10.1007/s12355-013-0267-0 |
Idioma: |
Inglês |
Conteúdo: |
Abstract In some of the traditional areas growing sugarcane and in most of the expanding regions in Brazil, water deficit stress is a limiting factor and irrigation is usually needed to assure economically viable sugarcane yields. This research evaluated the water requirements of a drip-irrigated second ratoon sugarcane crop based on three different spatial scales: field, plant and leaf. The Bowen atio method (BRM) was used to evaluate the mass and energy exchanges over the field, further computing the crop evapotranspiration (ETc). Sap flow by heat balance method nstalled in four representative stalks was used to evaluate he water use at the plant scale, and an infra-red gas analyser was used to evaluate leaf transpiration and stomatal conductance at the leaf scale. Comparing ETc and reference evapotranspiration we found that the crop coefficients or dry and wet seasons were 0.81 and 0.98, respectively. Evapotranspiration peaks of 7 mm day-1 were observed under conditions of strong crop-atmosphere coupling and high net radiation values. The stomatal conductance ranged from 0.09 to 0.19 mmol m-2 s-1 in dry and wet seasons respectively, showing sensitivity to the atmospheric conditions, notably the vapour deficit pressure and wind speed. BRM ranged from 3.7 to 4.4 mm day-1 and leaf transpiration ranged among 3.4 and 4.2 mm day-1. In an irrigated sugarcane production area in Brazil, water consumption of the sugarcane crop was highly correlated with atmospheric conditions. |
Palavras-Chave: |
Condutância estomática; Estresse hídrico; Fluxo de seiva. |
Thesagro: |
Balanço de Energia; Balanço hídrico; Irrigação. |
Thesaurus Nal: |
Energy balance; Irrigation; Sap flow; Stomatal conductance; Water stress. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02393naa a2200289 a 4500 001 1986730 005 2020-01-08 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1007/s12355-013-0267-0$2DOI 100 1 $aNASSIF, D. S. P. 245 $aEvapotranspiration and transpiration coupling to the atmosphere of sugarcane in southern Brazil$bscaling up from leaf to field.$h[electronic resource] 260 $c2014 520 $aAbstract In some of the traditional areas growing sugarcane and in most of the expanding regions in Brazil, water deficit stress is a limiting factor and irrigation is usually needed to assure economically viable sugarcane yields. This research evaluated the water requirements of a drip-irrigated second ratoon sugarcane crop based on three different spatial scales: field, plant and leaf. The Bowen atio method (BRM) was used to evaluate the mass and energy exchanges over the field, further computing the crop evapotranspiration (ETc). Sap flow by heat balance method nstalled in four representative stalks was used to evaluate he water use at the plant scale, and an infra-red gas analyser was used to evaluate leaf transpiration and stomatal conductance at the leaf scale. Comparing ETc and reference evapotranspiration we found that the crop coefficients or dry and wet seasons were 0.81 and 0.98, respectively. Evapotranspiration peaks of 7 mm day-1 were observed under conditions of strong crop-atmosphere coupling and high net radiation values. The stomatal conductance ranged from 0.09 to 0.19 mmol m-2 s-1 in dry and wet seasons respectively, showing sensitivity to the atmospheric conditions, notably the vapour deficit pressure and wind speed. BRM ranged from 3.7 to 4.4 mm day-1 and leaf transpiration ranged among 3.4 and 4.2 mm day-1. In an irrigated sugarcane production area in Brazil, water consumption of the sugarcane crop was highly correlated with atmospheric conditions. 650 $aEnergy balance 650 $aIrrigation 650 $aSap flow 650 $aStomatal conductance 650 $aWater stress 650 $aBalanço de Energia 650 $aBalanço hídrico 650 $aIrrigação 653 $aCondutância estomática 653 $aEstresse hídrico 653 $aFluxo de seiva 700 1 $aMARIN, F. R. 700 1 $aCOSTA, L. G. 773 $tSugar Tech, New Delhi$gv. 16, n. 3, p. 250-254, July/Sept. 2014.
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Embrapa Agricultura Digital (CNPTIA) |
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Biblioteca(s): |
Embrapa Agroenergia. |
Data corrente: |
20/12/2017 |
Data da última atualização: |
11/01/2018 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SIQUEIRA, F. G. de; ROMERO PELAEZ, R. D.; GONÇALVES, C. C.; CONCEIÇÃO, A. A.; MARQUEZ, A. F.; MENDONCA, S. |
Afiliação: |
FELIX GONCALVES DE SIQUEIRA, CNPAE; RUBEN DÁRIO ROMERO PELAEZ; CAROLYNE CAETANO GONÇALVES; APARECIDO ALMEIDA CONCEIÇÃO; AGENOR FONTOURA MARQUEZ, CNPAE; SIMONE MENDONCA, CNPAE. |
Título: |
Bioeconomia: resíduos lignocelulósicos agroindustriais pré-tratados por basidiomicetos para nutrição animal. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL SOBRE COGUMELOS NO BRASIL, 9.; SIMPÓSIO NACIONAL SOBRE COGUMELOS COMESTÍVEIS, 8.; I ENCONTRO DE BIOTECNOLOGIA DA UNIFESP, 1., 2017, São José dos Campos, SP. Anais ... Brasília, DF: Embrapa, 2017. |
Páginas: |
p. 91-102. |
Idioma: |
Português |
Palavras-Chave: |
Bioeconomia; Biotecnológicas; Macrofungi. |
Thesagro: |
Basidiomicetos. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169366/1/Anais-IX-SICOG-VIII-SNCC-Felix-2017.pdf
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Marc: |
LEADER 00866nam a2200217 a 4500 001 2083019 005 2018-01-11 008 2017 bl uuuu u00u1 u #d 100 1 $aSIQUEIRA, F. G. de 245 $aBioeconomia$bresíduos lignocelulósicos agroindustriais pré-tratados por basidiomicetos para nutrição animal.$h[electronic resource] 260 $aIn: SIMPÓSIO INTERNACIONAL SOBRE COGUMELOS NO BRASIL, 9.; SIMPÓSIO NACIONAL SOBRE COGUMELOS COMESTÍVEIS, 8.; I ENCONTRO DE BIOTECNOLOGIA DA UNIFESP, 1., 2017, São José dos Campos, SP. Anais ... Brasília, DF: Embrapa$c2017 300 $ap. 91-102. 650 $aBasidiomicetos 653 $aBioeconomia 653 $aBiotecnológicas 653 $aMacrofungi 700 1 $aROMERO PELAEZ, R. D. 700 1 $aGONÇALVES, C. C. 700 1 $aCONCEIÇÃO, A. A. 700 1 $aMARQUEZ, A. F. 700 1 $aMENDONCA, S.
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