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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha : |
21/02/2014 |
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Actualizado : |
04/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LADO, J.; MANZI, M.; SILVA, G.; LUQUE, E.; BLANCO, O.; PEREZ, E. |
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Afiliación : |
JOANNA LADO LINDNER, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MATIAS JESUS MANZI FRAGA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; GUILLERMO DANIEL SILVA MAINARDI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MAYZA ELEANA LUQUE NUÑEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ORIBE BLANCO MARTINEZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ELENA PEREZ FAGGIANI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Effective alternatives for the postharvest control of imazalil resistant Penicillium digitatum strains. |
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Complemento del título : |
Conference Paper. |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
Acta Horticulturae, 2010, no. 877, p.1449-1456. |
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ISBN : |
978-906605613-8 |
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ISSN : |
0567-7572 |
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DOI : |
10.17660/ActaHortic.2010.877.198 |
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Idioma : |
Inglés |
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Notas : |
ISHS Acta Horticulturae 877: VI International Postharvest Symposium. |
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Contenido : |
ABSTRACT.
Postharvest diseases control in Citrus is essential to maintain fruit quality during storage, overseas transport and selling. Green mold caused by Penicillium digitatum is one of the most important postharvest diseases. In Uruguay it has been controlled by synthetic fungicides. Fungicide resistant strains make it neccesary to develop new strategies to control postharvest decay in Citrus. In view of this situation, we attempted to develop an effective alternative management to control Penicillium digitatum imazalil (IMZ) resistant strains. For this purpose 'Valencia' oranges were inoculated with imazalil sensitive SS-22 and resistant RS-20 strains selected previously according to their aggressiveness on lemon fruits. From 18-22 hours before treatments, each fruit was inoculated by wounding (depth 2 mm, breadth 1 mm) and inoculating with a P. digitatum spore suspension (1,0 × 106 spores/ml). Incidence and sporulation was evaluated after 7, 11 and 15 days at 20°C. Similarly, an experimental packing-line was used to evaluate chemical alternatives and application methods. Imazalil with pyrimethanil (Philabuster"-PI, 750 ppm) mixture or combined with potassium sorbate (KS, 2%) resulted in a significant control of the incidence and sporulation of the most aggressive P. digitatum resistant strain. The incidence was reduced from 75-80% in controls to 0-8% in treatments. IMZ applied at 1500 ppm did not control the incidence or sporulation of the resistant strain. The application of KS reduced strains incidence and sporulation by 50-70%. No difference (p?0.05) was found in the pathogen control comparing both application methods. All treatments were effective on reducing sensible strain sporulation, being only PI alone or combined with KS, effective for the resistant strain. We concluded that PI (750 ppm) alone or with KS at 2% can be applied as an alternative management to control Uruguayan Penicillium digitatum sensitive and resistant IMZ strains. MenosABSTRACT.
Postharvest diseases control in Citrus is essential to maintain fruit quality during storage, overseas transport and selling. Green mold caused by Penicillium digitatum is one of the most important postharvest diseases. In Uruguay it has been controlled by synthetic fungicides. Fungicide resistant strains make it neccesary to develop new strategies to control postharvest decay in Citrus. In view of this situation, we attempted to develop an effective alternative management to control Penicillium digitatum imazalil (IMZ) resistant strains. For this purpose 'Valencia' oranges were inoculated with imazalil sensitive SS-22 and resistant RS-20 strains selected previously according to their aggressiveness on lemon fruits. From 18-22 hours before treatments, each fruit was inoculated by wounding (depth 2 mm, breadth 1 mm) and inoculating with a P. digitatum spore suspension (1,0 × 106 spores/ml). Incidence and sporulation was evaluated after 7, 11 and 15 days at 20°C. Similarly, an experimental packing-line was used to evaluate chemical alternatives and application methods. Imazalil with pyrimethanil (Philabuster"-PI, 750 ppm) mixture or combined with potassium sorbate (KS, 2%) resulted in a significant control of the incidence and sporulation of the most aggressive P. digitatum resistant strain. The incidence was reduced from 75-80% in controls to 0-8% in treatments. IMZ applied at 1500 ppm did not control the incidence or sporulation of the resistant strain. The applic... Presentar Todo |
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Palabras claves : |
Philabuster; Potassium sorbate; Pyrimethanil. |
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Thesagro : |
BACTERIOSIS; CITRUS; ENFERMEDADES DE LAS PLANTAS. |
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Asunto categoría : |
--
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02867naa a2200301 a 4500
001 1012844
005 2019-10-04
008 2010 bl uuuu u00u1 u #d
020 $a978-906605613-8
022 $a0567-7572
024 7 $a10.17660/ActaHortic.2010.877.198$2DOI
100 1 $aLADO, J.
245 $aEffective alternatives for the postharvest control of imazalil resistant Penicillium digitatum strains.
260 $c2010
500 $aISHS Acta Horticulturae 877: VI International Postharvest Symposium.
520 $aABSTRACT. Postharvest diseases control in Citrus is essential to maintain fruit quality during storage, overseas transport and selling. Green mold caused by Penicillium digitatum is one of the most important postharvest diseases. In Uruguay it has been controlled by synthetic fungicides. Fungicide resistant strains make it neccesary to develop new strategies to control postharvest decay in Citrus. In view of this situation, we attempted to develop an effective alternative management to control Penicillium digitatum imazalil (IMZ) resistant strains. For this purpose 'Valencia' oranges were inoculated with imazalil sensitive SS-22 and resistant RS-20 strains selected previously according to their aggressiveness on lemon fruits. From 18-22 hours before treatments, each fruit was inoculated by wounding (depth 2 mm, breadth 1 mm) and inoculating with a P. digitatum spore suspension (1,0 × 106 spores/ml). Incidence and sporulation was evaluated after 7, 11 and 15 days at 20°C. Similarly, an experimental packing-line was used to evaluate chemical alternatives and application methods. Imazalil with pyrimethanil (Philabuster"-PI, 750 ppm) mixture or combined with potassium sorbate (KS, 2%) resulted in a significant control of the incidence and sporulation of the most aggressive P. digitatum resistant strain. The incidence was reduced from 75-80% in controls to 0-8% in treatments. IMZ applied at 1500 ppm did not control the incidence or sporulation of the resistant strain. The application of KS reduced strains incidence and sporulation by 50-70%. No difference (p?0.05) was found in the pathogen control comparing both application methods. All treatments were effective on reducing sensible strain sporulation, being only PI alone or combined with KS, effective for the resistant strain. We concluded that PI (750 ppm) alone or with KS at 2% can be applied as an alternative management to control Uruguayan Penicillium digitatum sensitive and resistant IMZ strains.
650 $aBACTERIOSIS
650 $aCITRUS
650 $aENFERMEDADES DE LAS PLANTAS
653 $aPhilabuster
653 $aPotassium sorbate
653 $aPyrimethanil
700 1 $aMANZI, M.
700 1 $aSILVA, G.
700 1 $aLUQUE, E.
700 1 $aBLANCO, O.
700 1 $aPEREZ, E.
773 $tActa Horticulturae, 2010, no. 877, p.1449-1456.
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INIA Las Brujas (LB) |
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| Registros recuperados : 6 | |
| 5. |  | LASA, C.; ABIKO, K.; TEZUKA, N.; INABA, T.; GARCÍA, S. Algunas enfermedades que afectan actualmente los cultivos hortícolas en Uruguay. (*) Investigaciones Agronómicas, 1981, Año 2, no. 1, p. 97-100. (CIAAB Investigaciones Agronómicas; 2) (*). Trabajo realizado dentro del marco del Proyecto de Cooperación en la Investigación Hortícola Japón-Uruguay, el cual se está desarrollando desde Julio de 1978 en EEGLB.| Tipo: Artículos en Revistas Agropecuarias |
| Biblioteca(s): INIA La Estanzuela. |
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| Registros recuperados : 6 | |
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