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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
06/03/2017 |
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Data da última atualização: |
03/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MORAIS, J. E. F. de; SILVA, T. G. F. da; QUEIROZ, M. G. de; ARAUJO, G. G. L. de; MOURA, M. S. B. de; ARAÚJO JÚNIOR, G. do N. |
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Afiliação: |
JOSÉ E. F. DE MORAIS, Universidade Federal Rural de Pernambuco; THIERES G. F. DA SILVA, Universidade Federal Rural de Pernambuco/Unidade Acadêmica de Serra Talhada. Serra Talhada, PE; MARIA G. DE QUEIROZ, Universidade Federal de Viçosa; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; MAGNA SOELMA BESERRA DE MOURA, CPATSA; GEORGE DO N. ARAÚJO JÚNIOR, Universidade Federal Rural de Pernambuco/Unidade Acadêmica de Serra Talhada. Serra Talhada, PE. |
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Título: |
Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, v. 21, n. 4, p. 273-278, 2017. |
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DOI: |
10.1590/1807-1929/agriambi.v21n4p273-278 |
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Idioma: |
Português |
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Conteúdo: |
The knowledge on soil water dynamics is the basis of crop water management. The soil water balance (SWB) method is used for this purpose. However, its application in cactus may lead to misinterpretation in water efficiency analysis, since it does not consider the amount of water retained in the plant (WRP). This study aimed to evaluate SWB applicability, hydrodynamic changes and water efficiency of forage cactus clones under irrigation. The clones ?Orelha de Elefante Mexicana? (OEM), ?IPA Sertânia? (IPA) and ?Miúda? (MIU) were submitted to irrigation depths (2.5, 5.0 and 7.5 mm) and frequencies (7, 14 and 28 days), in Serra Talhada, PE, Brazil, between March 2012 and August 2013. The SWB was applied, by adding the WRP in the estimate of the effective actual evapotranspiration (ETrEF). The water efficiency indicators were calculated. The actual evapotranspiration on SWB (ETrSWB) overestimated ETrEF and, like other SWB components, it was affected by the factors irrigation depth, frequency and clone. The clone OEM is the most efficient, due to the use of the WRP, while MIU leads to highest gross economic returns for sale of cladodes as seed. As conclusion, the application of the soil water balance method in areas cultivated with cactus species must be accompanied by WRP. |
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Palavras-Chave: |
Cactáceas; Cactos forrageiros; Cactus; Eavpotranspiração; Modelagem; Water retained in the plant. |
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Thesagro: |
Balanço hídrico; Meteorologia; Retenção de Água no Solo; Solo. |
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Thesaurus Nal: |
Soil water balance. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/157102/1/Magna-2017-1.pdf
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Marc: |
LEADER 02356naa a2200325 a 4500
001 2066153
005 2023-07-03
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1590/1807-1929/agriambi.v21n4p273-278$2DOI
100 1 $aMORAIS, J. E. F. de
245 $aHydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation.$h[electronic resource]
260 $c2017
520 $aThe knowledge on soil water dynamics is the basis of crop water management. The soil water balance (SWB) method is used for this purpose. However, its application in cactus may lead to misinterpretation in water efficiency analysis, since it does not consider the amount of water retained in the plant (WRP). This study aimed to evaluate SWB applicability, hydrodynamic changes and water efficiency of forage cactus clones under irrigation. The clones ?Orelha de Elefante Mexicana? (OEM), ?IPA Sertânia? (IPA) and ?Miúda? (MIU) were submitted to irrigation depths (2.5, 5.0 and 7.5 mm) and frequencies (7, 14 and 28 days), in Serra Talhada, PE, Brazil, between March 2012 and August 2013. The SWB was applied, by adding the WRP in the estimate of the effective actual evapotranspiration (ETrEF). The water efficiency indicators were calculated. The actual evapotranspiration on SWB (ETrSWB) overestimated ETrEF and, like other SWB components, it was affected by the factors irrigation depth, frequency and clone. The clone OEM is the most efficient, due to the use of the WRP, while MIU leads to highest gross economic returns for sale of cladodes as seed. As conclusion, the application of the soil water balance method in areas cultivated with cactus species must be accompanied by WRP.
650 $aSoil water balance
650 $aBalanço hídrico
650 $aMeteorologia
650 $aRetenção de Água no Solo
650 $aSolo
653 $aCactáceas
653 $aCactos forrageiros
653 $aCactus
653 $aEavpotranspiração
653 $aModelagem
653 $aWater retained in the plant
700 1 $aSILVA, T. G. F. da
700 1 $aQUEIROZ, M. G. de
700 1 $aARAUJO, G. G. L. de
700 1 $aMOURA, M. S. B. de
700 1 $aARAÚJO JÚNIOR, G. do N.
773 $tRevista Brasileira de Engenharia Agrícola e Ambiental$gv. 21, n. 4, p. 273-278, 2017.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
16/08/2016 |
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Data da última atualização: |
01/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CHAIBUB, A. A.; CARVALHO, J. C. B. de; SILVA, C. de S.; COLLEVATTI, R. G.; GONÇALVES, F. J.; CÔRTES, M. V. de C. B.; FILIPPI, M. C. C. de; FARIA, F. P. de; LOPES, D. C. B.; ARAÚJO, L. G. de. |
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Afiliação: |
AMANDA ABDALLAH CHAIBUB, UFG; JACQUELINE CAMPOS BORBA DE CARVALHO, UFG; CARLOS DE SOUSA SILVA, UFG; ROSANE GARCIA COLLEVATTI, UFG; FÁBIO JOSÉ GONÇALVES, bolsista CNPAF; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; FABRICIA PAULA DE FARIA, bolsista CNPAF; DOUGLAS CHRISTIAN BORGES LOPES, bolsista CNPAF; LEILA GARCÊS DE ARAÚJO, UFG. |
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Título: |
Defence responses in rice plants in prior and simultaneous applications of Cladosporium sp. during leaf blast suppression. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 23, n. 21, p. 21554-21564, Nov. 2016. |
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DOI: |
10.1007/s11356-016-7379-5 |
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Idioma: |
Inglês |
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Conteúdo: |
An alternative method to control rice blast (Magnaporthe oryzae) is to include biological agent in the disease management strategy. The objective of this study was to assess the leaf blast-suppressing effects of rice phylloplane fungi. One Cladosporium sp. phylloplane fungus was shown to possess biocontrolling traits based on its morphological characteristics and an analysis of its 18S ribosomal DNA. Experiments aimed at determining the optimal time to apply the bioagent and the mechanisms involved in its rice blast-suppressing activities were performed under controlled greenhouse conditions. We used foliar spraying to apply the Cladosporium sp. 48 h prior to applying the pathogen, and we found that this increased the enzymatic activity. Furthermore, in vitro tests performed using isolate C24 showed that it possessed the ability to secrete endoxylanases and endoglucanases. When Cladosporium sp. was applied either prior to or simultaneous with the pathogen, we observed a significant increase in defence enzyme activity, and rice blast was suppressed by 84.0 and 78.6 %, respectively. However, some enzymes showed higher activity at 24 h while others did so at 48 h after the challenge inoculation. Cladosporium sp. is a biological agent that is capable of suppressing rice leaf blast by activating biochemical defence mechanisms in rice plants. It is highly adapted to natural field conditions and should be included in further studies aimed at developing strategies to support ecologically sustainable disease management and reduce environmental pollution by the judicious use of fungicidal sprays. MenosAn alternative method to control rice blast (Magnaporthe oryzae) is to include biological agent in the disease management strategy. The objective of this study was to assess the leaf blast-suppressing effects of rice phylloplane fungi. One Cladosporium sp. phylloplane fungus was shown to possess biocontrolling traits based on its morphological characteristics and an analysis of its 18S ribosomal DNA. Experiments aimed at determining the optimal time to apply the bioagent and the mechanisms involved in its rice blast-suppressing activities were performed under controlled greenhouse conditions. We used foliar spraying to apply the Cladosporium sp. 48 h prior to applying the pathogen, and we found that this increased the enzymatic activity. Furthermore, in vitro tests performed using isolate C24 showed that it possessed the ability to secrete endoxylanases and endoglucanases. When Cladosporium sp. was applied either prior to or simultaneous with the pathogen, we observed a significant increase in defence enzyme activity, and rice blast was suppressed by 84.0 and 78.6 %, respectively. However, some enzymes showed higher activity at 24 h while others did so at 48 h after the challenge inoculation. Cladosporium sp. is a biological agent that is capable of suppressing rice leaf blast by activating biochemical defence mechanisms in rice plants. It is highly adapted to natural field conditions and should be included in further studies aimed at developing strategies to support ecologi... Mostrar Tudo |
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Palavras-Chave: |
Biological agent; Resistance induction; Sustainable management. |
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Thesagro: |
Antagonismo; Arroz; Brusone; Oryza sativa. |
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Thesaurus NAL: |
Blast disease; Cladosporium; Drug antagonism; Magnaporthe oryzae; Rice. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02788naa a2200385 a 4500
001 2050950
005 2017-03-01
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1007/s11356-016-7379-5$2DOI
100 1 $aCHAIBUB, A. A.
245 $aDefence responses in rice plants in prior and simultaneous applications of Cladosporium sp. during leaf blast suppression.$h[electronic resource]
260 $c2016
520 $aAn alternative method to control rice blast (Magnaporthe oryzae) is to include biological agent in the disease management strategy. The objective of this study was to assess the leaf blast-suppressing effects of rice phylloplane fungi. One Cladosporium sp. phylloplane fungus was shown to possess biocontrolling traits based on its morphological characteristics and an analysis of its 18S ribosomal DNA. Experiments aimed at determining the optimal time to apply the bioagent and the mechanisms involved in its rice blast-suppressing activities were performed under controlled greenhouse conditions. We used foliar spraying to apply the Cladosporium sp. 48 h prior to applying the pathogen, and we found that this increased the enzymatic activity. Furthermore, in vitro tests performed using isolate C24 showed that it possessed the ability to secrete endoxylanases and endoglucanases. When Cladosporium sp. was applied either prior to or simultaneous with the pathogen, we observed a significant increase in defence enzyme activity, and rice blast was suppressed by 84.0 and 78.6 %, respectively. However, some enzymes showed higher activity at 24 h while others did so at 48 h after the challenge inoculation. Cladosporium sp. is a biological agent that is capable of suppressing rice leaf blast by activating biochemical defence mechanisms in rice plants. It is highly adapted to natural field conditions and should be included in further studies aimed at developing strategies to support ecologically sustainable disease management and reduce environmental pollution by the judicious use of fungicidal sprays.
650 $aBlast disease
650 $aCladosporium
650 $aDrug antagonism
650 $aMagnaporthe oryzae
650 $aRice
650 $aAntagonismo
650 $aArroz
650 $aBrusone
650 $aOryza sativa
653 $aBiological agent
653 $aResistance induction
653 $aSustainable management
700 1 $aCARVALHO, J. C. B. de
700 1 $aSILVA, C. de S.
700 1 $aCOLLEVATTI, R. G.
700 1 $aGONÇALVES, F. J.
700 1 $aCÔRTES, M. V. de C. B.
700 1 $aFILIPPI, M. C. C. de
700 1 $aFARIA, F. P. de
700 1 $aLOPES, D. C. B.
700 1 $aARAÚJO, L. G. de
773 $tEnvironmental Science and Pollution Research$gv. 23, n. 21, p. 21554-21564, Nov. 2016.
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Embrapa Arroz e Feijão (CNPAF) |
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