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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
13/06/2023 |
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Data da última atualização: |
13/06/2023 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
JESUS, J. L. de; VIANA, E. de S.; ALMEIDA, V. DE O.; SASAKI, F. F. C.; SANTOS, C. T.; BRANCO, A. |
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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. |
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Título: |
Effect of papaya leaf extracts on the control of papaya anthracnose. |
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Ano de publicação: |
2022 |
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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. |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Mamão. |
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Thesaurus Nal: |
Colletotrichum; Papayas; Plant extracts; Postharvest diseases. |
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Categoria do assunto: |
H Saúde e Patologia |
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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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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
10/02/2014 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
FRANZINI, V. I.; MENDES, F. L.; MURAOKA, T.; SILVA, E. C. da; ADU-GYAMFI, J. J. |
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Afiliação: |
VINICIUS IDE FRANZINI, CPATU; CPATU; T. MURAOKA, CENA/USP; CENA/USP; International Atomic Energy Agency. |
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Título: |
Selection of green manure species for efficient absorbtion of poorly-available forms of soil phosphorus. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: OPTIMIZING productivity of food crop genotypes in low nutrient soils. Vienna: FAO: IAEA, 2013. |
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Páginas: |
p. 201-212. |
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Série: |
(IAEA Tecdoc, 1721). |
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Idioma: |
Inglês |
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Conteúdo: |
Green manuring is an agronomic practice in which plants or their residues are added to the soil, improving of the soil physical, chemical and biological attributes, and increasing organic matter and fertility levels through nutrient cycling. It is estimated that green manures can increase P bioavailability. The integration of plant species in crop rotations to immobilize P is one of the most promising agronomic measures to improve the availability of P for the main crop. This study aimed to assess 21 species of green manure and a standard plant species (Lupinus albus) on their ability to absorb the available forms of P by the 32P isotopic dilution technique. It also aimed to determine if the isotopically exchangeable P, the L-values, differed when calculated with or without taking seed N into account. The results were statistically correlated and analyzed by hierarchical clustering (HCA) in order to group similar plant species. Jack bean was the most efficient species in P utilization while the Stylosanthes spp. were the most efficient in P uptake. The seed-derived P affected the P uptake efficiency evaluated by L-value technique. |
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Thesagro: |
Adubação; Fósforo; Solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/96861/1/p201.pdf
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Marc: |
LEADER 01861naa a2200229 a 4500
001 1979297
005 2022-10-19
008 2013 bl uuuu u00u1 u #d
100 1 $aFRANZINI, V. I.
245 $aSelection of green manure species for efficient absorbtion of poorly-available forms of soil phosphorus.$h[electronic resource]
260 $c2013
300 $ap. 201-212.
490 $a(IAEA Tecdoc, 1721).
520 $aGreen manuring is an agronomic practice in which plants or their residues are added to the soil, improving of the soil physical, chemical and biological attributes, and increasing organic matter and fertility levels through nutrient cycling. It is estimated that green manures can increase P bioavailability. The integration of plant species in crop rotations to immobilize P is one of the most promising agronomic measures to improve the availability of P for the main crop. This study aimed to assess 21 species of green manure and a standard plant species (Lupinus albus) on their ability to absorb the available forms of P by the 32P isotopic dilution technique. It also aimed to determine if the isotopically exchangeable P, the L-values, differed when calculated with or without taking seed N into account. The results were statistically correlated and analyzed by hierarchical clustering (HCA) in order to group similar plant species. Jack bean was the most efficient species in P utilization while the Stylosanthes spp. were the most efficient in P uptake. The seed-derived P affected the P uptake efficiency evaluated by L-value technique.
650 $aAdubação
650 $aFósforo
650 $aSolo
700 1 $aMENDES, F. L.
700 1 $aMURAOKA, T.
700 1 $aSILVA, E. C. da
700 1 $aADU-GYAMFI, J. J.
773 $tIn: OPTIMIZING productivity of food crop genotypes in low nutrient soils. Vienna: FAO: IAEA, 2013.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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