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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
13/06/2023 |
Data da última atualização: |
13/06/2023 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
JESUS, J. L. de; VIANA, E. de S.; ALMEIDA, V. DE O.; SASAKI, F. F. C.; SANTOS, C. T.; BRANCO, A. |
Afiliação: |
JACIENE LOPES DE JESUS ASSIS, CNPMF; ELISETH DE SOUZA VIANA, CNPMF; VANESSA DE OLIVEIRA ALMEIDA, FACULDADE MARIA MILZA; FABIANA FUMI CERQUEIRA SASAKI, CNPMF; CALILA TEIXEIRA SANTOS, UNIVERSIDADE ESTADUAL DE FEIRA DE SANTANA; ALEXSANDRO BRANCO, UNIVERSIDADE ESTADUAL DE FEIRA DE SANTANA. |
Título: |
Effect of papaya leaf extracts on the control of papaya anthracnose. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
In: MELO, J. O. F. (Org.). Ciências agrárias: o avanço da ciência no Brasil. Guarujá, SP: Científica Digital, 2022. v. 5, cap. 17, p. 234-238. E-book. |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT: Objective: The objective of this study was to evaluate whether extracts with different polarities, obtained from papaya (Carica papaya) leaves, have fungicide and/or fungitoxic action in the post-harvest control of anthracnose in papaya fruits. Methods: Hydroethanolic extract was fractionated with organic solvents of different polarities, resulting in hexane, ethyl ether, ethyl acetate, n-butyl alcohol and aqueous fractions. In in vitro tests, concentrations of 0, 500, 1000, 1500 and 2000 mg L-1, diluted with 10% Tween 20, were used to evaluate fungitoxic and fungicide effects using the Mycelial Growth Inhibition percentage (MGI%) method. Results and Discussion: In in vivo tests, the fraction of leaf extract which had the highest MGI% was used. Severity, expressed by the average diameter of the lesion and calculation of the Area Under the Disease Progress Curve (AUDPC), and incidence of the disease were determined. Analyses of pH, soluble solids, titratable acidity, firmness and mass loss were performed to evaluate the effect of treatments on fruit quality. Aqueous extract, at a concentration of 2000 mg mL-1, was the most efficient to control the growth of Colletotrichum spp. in vitro. In the in vivo test, an inhibitory effect of the extract was observed at the different concentrations tested, when associated with 10% Tween 20. The use of aqueous extract in fruits did not significantly alter their firmness and soluble solids content. Conclusion: Treatment of papaya fruits with Tween 20, associated or not with aqueous extract, reduced the appearance of anthracnose symptoms. MenosABSTRACT: Objective: The objective of this study was to evaluate whether extracts with different polarities, obtained from papaya (Carica papaya) leaves, have fungicide and/or fungitoxic action in the post-harvest control of anthracnose in papaya fruits. Methods: Hydroethanolic extract was fractionated with organic solvents of different polarities, resulting in hexane, ethyl ether, ethyl acetate, n-butyl alcohol and aqueous fractions. In in vitro tests, concentrations of 0, 500, 1000, 1500 and 2000 mg L-1, diluted with 10% Tween 20, were used to evaluate fungitoxic and fungicide effects using the Mycelial Growth Inhibition percentage (MGI%) method. Results and Discussion: In in vivo tests, the fraction of leaf extract which had the highest MGI% was used. Severity, expressed by the average diameter of the lesion and calculation of the Area Under the Disease Progress Curve (AUDPC), and incidence of the disease were determined. Analyses of pH, soluble solids, titratable acidity, firmness and mass loss were performed to evaluate the effect of treatments on fruit quality. Aqueous extract, at a concentration of 2000 mg mL-1, was the most efficient to control the growth of Colletotrichum spp. in vitro. In the in vivo test, an inhibitory effect of the extract was observed at the different concentrations tested, when associated with 10% Tween 20. The use of aqueous extract in fruits did not significantly alter their firmness and soluble solids content. Conclusion: Treatment of papaya... Mostrar Tudo |
Thesagro: |
Mamão. |
Thesaurus Nal: |
Colletotrichum; Papayas; Plant extracts; Postharvest diseases. |
Categoria do assunto: |
H Saúde e Patologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154410/1/Effect-of-papaya-leaf-extracts-on-the-control.pdf
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Marc: |
LEADER 02385naa a2200241 a 4500 001 2154410 005 2023-06-13 008 2022 bl uuuu u00u1 u #d 100 1 $aJESUS, J. L. de 245 $aEffect of papaya leaf extracts on the control of papaya anthracnose.$h[electronic resource] 260 $c2022 520 $aABSTRACT: Objective: The objective of this study was to evaluate whether extracts with different polarities, obtained from papaya (Carica papaya) leaves, have fungicide and/or fungitoxic action in the post-harvest control of anthracnose in papaya fruits. Methods: Hydroethanolic extract was fractionated with organic solvents of different polarities, resulting in hexane, ethyl ether, ethyl acetate, n-butyl alcohol and aqueous fractions. In in vitro tests, concentrations of 0, 500, 1000, 1500 and 2000 mg L-1, diluted with 10% Tween 20, were used to evaluate fungitoxic and fungicide effects using the Mycelial Growth Inhibition percentage (MGI%) method. Results and Discussion: In in vivo tests, the fraction of leaf extract which had the highest MGI% was used. Severity, expressed by the average diameter of the lesion and calculation of the Area Under the Disease Progress Curve (AUDPC), and incidence of the disease were determined. Analyses of pH, soluble solids, titratable acidity, firmness and mass loss were performed to evaluate the effect of treatments on fruit quality. Aqueous extract, at a concentration of 2000 mg mL-1, was the most efficient to control the growth of Colletotrichum spp. in vitro. In the in vivo test, an inhibitory effect of the extract was observed at the different concentrations tested, when associated with 10% Tween 20. The use of aqueous extract in fruits did not significantly alter their firmness and soluble solids content. Conclusion: Treatment of papaya fruits with Tween 20, associated or not with aqueous extract, reduced the appearance of anthracnose symptoms. 650 $aColletotrichum 650 $aPapayas 650 $aPlant extracts 650 $aPostharvest diseases 650 $aMamão 700 1 $aVIANA, E. de S. 700 1 $aALMEIDA, V. DE O. 700 1 $aSASAKI, F. F. C. 700 1 $aSANTOS, C. T. 700 1 $aBRANCO, A. 773 $tIn: MELO, J. O. F. (Org.). Ciências agrárias: o avanço da ciência no Brasil. Guarujá, SP: Científica Digital, 2022.$gv. 5, cap. 17, p. 234-238. E-book.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
22/05/2007 |
Data da última atualização: |
29/05/2017 |
Autoria: |
MEDEIROS, M. A. de. |
Afiliação: |
MARIA ALICE DE MEDEIROS, 295938, EMBRAPA HORTALIÇAS. |
Título: |
Papel da biodversidade no manejo da traça-de-tomateiro Tuta absoluta (Meyrick, 1917) (Lepidoptera: gelevhiidae). |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
2007, |
Páginas: |
145 p. |
Idioma: |
Português |
Notas: |
Tese(Doutorado em Ecologia) - Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF. Banca examinadora: Geni Livtin Villas Boas. |
Conteúdo: |
O objetivo do trabalho foi comparar a flutuação populacional da traça-do-tomateiro Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) nos sistemas orgânico e convencional para verificar se os danos causados pela traça-do-tomateiro são influênciados pelo grau de complexidade do ambiente, bem como, avaliar se a diversificação de espécies associadas ao plantio do tomateiro pode melhorar o desempenho dos inimigos naturais e assim influenciar a população da traça-do-tomateiro. |
Palavras-Chave: |
Consorciação; Cultivo convencional; Cultivo orgânico; Diversificação; Traça-do-tomateiro. |
Thesagro: |
Biodiversidade; Dano; Flutuação Populacional; Inimigo Natural; Inseto; Lycopersicon Esculentum; Praga; Tomate; Tuta Absoluta. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPH-2009/32592/1/tese_maria_alice_medeiros_2007.pdf
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Marc: |
LEADER 01475nam a2200301 a 4500 001 1780108 005 2017-05-29 008 2007 bl uuuu m 00u1 u #d 100 1 $aMEDEIROS, M. A. de 245 $aPapel da biodversidade no manejo da traça-de-tomateiro Tuta absoluta (Meyrick, 1917) (Lepidoptera$bgelevhiidae).$h[electronic resource] 260 $a2007,$c2007 300 $a145 p. 500 $aTese(Doutorado em Ecologia) - Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF. Banca examinadora: Geni Livtin Villas Boas. 520 $aO objetivo do trabalho foi comparar a flutuação populacional da traça-do-tomateiro Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) nos sistemas orgânico e convencional para verificar se os danos causados pela traça-do-tomateiro são influênciados pelo grau de complexidade do ambiente, bem como, avaliar se a diversificação de espécies associadas ao plantio do tomateiro pode melhorar o desempenho dos inimigos naturais e assim influenciar a população da traça-do-tomateiro. 650 $aBiodiversidade 650 $aDano 650 $aFlutuação Populacional 650 $aInimigo Natural 650 $aInseto 650 $aLycopersicon Esculentum 650 $aPraga 650 $aTomate 650 $aTuta Absoluta 653 $aConsorciação 653 $aCultivo convencional 653 $aCultivo orgânico 653 $aDiversificação 653 $aTraça-do-tomateiro
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