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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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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
24/10/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
PÉREZ, C.A.; WINGFIELD, M.J.; SLIPPERS, B.; ALTIER, N.; BLANCHETTE, R.A. |
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Afiliación : |
C.A. PÉREZ, Department of Plant Pathology, University of Minnesota, St. Paul, MN, USA; Departamento de Protección Vegetal, EEMAC, Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; M.J. WINGFIELD, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa; B. SLIPPERS, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa; NORA ADRIANA ALTIER MANZINI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; R.A. BLANCHETTE, Department of Plant Pathology, University of Minnesota, St. Paul, MN, USA. |
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Título : |
Endophytic and canker-associated Botryosphaeriaceae occurring on non-native Eucalyptus and native Myrtaceae trees in Uruguay. |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
Fungal Diversity, 2010, v. 41 no.1, p. 53-69. |
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ISSN : |
1560-2745 |
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DOI : |
10.1007/s13225-009-0014-8 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 19 August 2009 / Accepted: 7 October 2009 / Published online: 15 January 2010. |
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Contenido : |
ABSTRACT.
Species of the Botryosphaeriaceae are important pathogens causing cankers and die-back on many woody plants. In Uruguay, Neofusicoccum eucalyptorum, N. ribis and B. dothidea have previously been associated with stem cankers on plantation-grown Eucalyptus globulus. However, very little is known regarding the occurrence and species diversity of Botryosphaeriaceae in native Myrtaceae forests or what their relationship is to those species infecting Eucalyptus in plantations. The objectives of this study were to identify the Botryosphaeriaceae species present as endophytes or associated with cankers in both introduced and native tree hosts in Uruguay, and to test the pathogenicity of selected isolates obtained from native trees on Eucalyptus. Symptomatic and asymptomatic material was collected countrywide from Eucalyptus plantations and native Myrtaceae trees. Single spore cultures were identified based on conidial morphology and comparisons of DNA sequences of the ITS and EF1-α regions. Six Botryosphaeriaceae species were identified. Botryosphaeria dothidea, N. eucalyptorum and specimens residing in the N. parvum-N. ribis complex were isolated from both introduced Eucalyptus and native Myrtaceae trees, whereas Lasiodiplodia pseudotheobromae was found only on Myrcianthes pungens. Diplodia pseudoseriata sp. nov. and Spencermartinsia uruguayensis sp. nov. are novel species found only on native myrtaceous hosts. Pathogenicity tests showed that isolates obtained from native trees and identified as L. pseudotheobromae, N. eucalyptorum and the N. parvum-N.ribis complex are pathogenic to E. grandis. Interestingly, Lasiodiplodia pseudotheobromae has not previously been found on Eucalyptus in Uruguay and represents a potential threat to this host.
© Kevin D. Hyde 2010. MenosABSTRACT.
Species of the Botryosphaeriaceae are important pathogens causing cankers and die-back on many woody plants. In Uruguay, Neofusicoccum eucalyptorum, N. ribis and B. dothidea have previously been associated with stem cankers on plantation-grown Eucalyptus globulus. However, very little is known regarding the occurrence and species diversity of Botryosphaeriaceae in native Myrtaceae forests or what their relationship is to those species infecting Eucalyptus in plantations. The objectives of this study were to identify the Botryosphaeriaceae species present as endophytes or associated with cankers in both introduced and native tree hosts in Uruguay, and to test the pathogenicity of selected isolates obtained from native trees on Eucalyptus. Symptomatic and asymptomatic material was collected countrywide from Eucalyptus plantations and native Myrtaceae trees. Single spore cultures were identified based on conidial morphology and comparisons of DNA sequences of the ITS and EF1-α regions. Six Botryosphaeriaceae species were identified. Botryosphaeria dothidea, N. eucalyptorum and specimens residing in the N. parvum-N. ribis complex were isolated from both introduced Eucalyptus and native Myrtaceae trees, whereas Lasiodiplodia pseudotheobromae was found only on Myrcianthes pungens. Diplodia pseudoseriata sp. nov. and Spencermartinsia uruguayensis sp. nov. are novel species found only on native myrtaceous hosts. Pathogenicity tests showed that isolates obtained from ... Presentar Todo |
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Thesagro : |
AGENTES PATÓGENOS; BOTRYOSPHAERIA; ENFERMEDADES FORESTALES; PATÓGENOS FORESTALES. |
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Asunto categoría : |
K10 Producción forestal |
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Marc : |
LEADER 02678naa a2200253 a 4500
001 1051308
005 2019-10-15
008 2010 bl uuuu u00u1 u #d
022 $a1560-2745
024 7 $a10.1007/s13225-009-0014-8$2DOI
100 1 $aPÉREZ, C.A.
245 $aEndophytic and canker-associated Botryosphaeriaceae occurring on non-native Eucalyptus and native Myrtaceae trees in Uruguay.$h[electronic resource]
260 $c2010
500 $aArticle history: Received: 19 August 2009 / Accepted: 7 October 2009 / Published online: 15 January 2010.
520 $aABSTRACT. Species of the Botryosphaeriaceae are important pathogens causing cankers and die-back on many woody plants. In Uruguay, Neofusicoccum eucalyptorum, N. ribis and B. dothidea have previously been associated with stem cankers on plantation-grown Eucalyptus globulus. However, very little is known regarding the occurrence and species diversity of Botryosphaeriaceae in native Myrtaceae forests or what their relationship is to those species infecting Eucalyptus in plantations. The objectives of this study were to identify the Botryosphaeriaceae species present as endophytes or associated with cankers in both introduced and native tree hosts in Uruguay, and to test the pathogenicity of selected isolates obtained from native trees on Eucalyptus. Symptomatic and asymptomatic material was collected countrywide from Eucalyptus plantations and native Myrtaceae trees. Single spore cultures were identified based on conidial morphology and comparisons of DNA sequences of the ITS and EF1-α regions. Six Botryosphaeriaceae species were identified. Botryosphaeria dothidea, N. eucalyptorum and specimens residing in the N. parvum-N. ribis complex were isolated from both introduced Eucalyptus and native Myrtaceae trees, whereas Lasiodiplodia pseudotheobromae was found only on Myrcianthes pungens. Diplodia pseudoseriata sp. nov. and Spencermartinsia uruguayensis sp. nov. are novel species found only on native myrtaceous hosts. Pathogenicity tests showed that isolates obtained from native trees and identified as L. pseudotheobromae, N. eucalyptorum and the N. parvum-N.ribis complex are pathogenic to E. grandis. Interestingly, Lasiodiplodia pseudotheobromae has not previously been found on Eucalyptus in Uruguay and represents a potential threat to this host. © Kevin D. Hyde 2010.
650 $aAGENTES PATÓGENOS
650 $aBOTRYOSPHAERIA
650 $aENFERMEDADES FORESTALES
650 $aPATÓGENOS FORESTALES
700 1 $aWINGFIELD, M.J.
700 1 $aSLIPPERS, B.
700 1 $aALTIER, N.
700 1 $aBLANCHETTE, R.A.
773 $tFungal Diversity, 2010$gv. 41 no.1, p. 53-69.
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Registro original : |
INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
26/01/2024 |
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Actualizado : |
26/01/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
GONZALEZ NIETO, L.; FRANCESCATTO, P.; CARRA, B.; ROBINSON, T.L. |
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Afiliación : |
LUIS GONZALEZ NIETO, Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, 14456, NY, United States; POLIANA FRANCESCATTO, Valent BioSciences, Libertyville, 60048, IL, United States; BRUNO CARRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; TERENCE LEE ROBINSON, Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, 14456, NY, United States. |
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Título : |
Metamitron thinning efficacy of apple fruitlets is affected by different rates, timings and weather factors in New York State. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Horticulturae, 2023, Volume 9, Issue 11, article 1179. https://doi.org/10.3390/horticulturae9111179 -- OPEN ACCESS. |
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ISSN : |
2311-7524 |
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DOI : |
10.3390/horticulturae9111179 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submission received: 6 October 2023, Revised: 24 October 2023, Accepted: 26 October 2023, Published: 28 October 2023. -- Document type: Article Gold Open Access. -- Correspondence: Gonzalez Nieto, L.; Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, NY, United States; email:lg579@cornell.edu -- This article belongs to the Collection Precision Management Systems for Sustainable Orchards and Vineyards (https://www.mdpi.com/journal/horticulturae/topical_collections/QAD12207C7 ). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
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Contenido : |
ABSTRACT.- Precision chemical thinning is the most common method of thinning apple fruitlets because it requires little time and is cost-effective. The aims of the current study were I.- to investigate the effect of the application of metamitron at different rates on 'Gala' apples; II.- to determine which fruit diameters were most sensitive to metamitron spray at several rates (between 180 and 500 ppm); and III- to identify the key environmental factors that explain Metamitron efficacy on a year-to-year basis. Eighteen trials were conducted over seven seasons, from 2015 to 2022 in 'Gala' apple orchards in Geneva (New York State). Metamitron was applied at different rates between 180 and 500 ppm, and the timing of the application was between petal fall (4.5 mm) and 18.5 mm fruit size. In each of the studies and years, the effect of meteorological parameters was evaluated. Our results suggest that a linear rate effect was observed in all trials, but that there were differences between the slopes of the regression every year because chemical thinning efficacy was variable year to year. The maximum metamitron efficacy was between 9.5 and 11 mm king fruit diameter; however, metamitron showed thinning efficacy at all phenological stages, from petal fall to 18.5 mm in 'Gala' apples. Our results suggest that the important meteorological factors affecting thinning efficacy were temperature and solar radiation on the day of application and for the next 6 days. The solar radiation after application of metamitron was the most important meteorological factor. Fruit drop caused by metamitron increased with low solar radiation. The minimum and maximum temperatures were also important factors in determining metamitron efficacy. A high minimum temperature (during the night) increased the fruit drop caused by metamitron and the maximum temperature during the day showed a negative correlation with the efficacy of metamitron. © 2023 by the authors. MenosABSTRACT.- Precision chemical thinning is the most common method of thinning apple fruitlets because it requires little time and is cost-effective. The aims of the current study were I.- to investigate the effect of the application of metamitron at different rates on 'Gala' apples; II.- to determine which fruit diameters were most sensitive to metamitron spray at several rates (between 180 and 500 ppm); and III- to identify the key environmental factors that explain Metamitron efficacy on a year-to-year basis. Eighteen trials were conducted over seven seasons, from 2015 to 2022 in 'Gala' apple orchards in Geneva (New York State). Metamitron was applied at different rates between 180 and 500 ppm, and the timing of the application was between petal fall (4.5 mm) and 18.5 mm fruit size. In each of the studies and years, the effect of meteorological parameters was evaluated. Our results suggest that a linear rate effect was observed in all trials, but that there were differences between the slopes of the regression every year because chemical thinning efficacy was variable year to year. The maximum metamitron efficacy was between 9.5 and 11 mm king fruit diameter; however, metamitron showed thinning efficacy at all phenological stages, from petal fall to 18.5 mm in 'Gala' apples. Our results suggest that the important meteorological factors affecting thinning efficacy were temperature and solar radiation on the day of application and for the next 6 days. The solar radiation afte... Presentar Todo |
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Palabras claves : |
Brevis; Maximum temperature; Metamitron; Minimum temperature; SISTEMA VEGETAL INTENSIVO - INIA; Solar radiation; Thinning efficacy. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
https://www.mdpi.com/2311-7524/9/11/1179/pdf
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Marc : |
LEADER 03642naa a2200277 a 4500
001 1064438
005 2024-01-26
008 2023 bl uuuu u00u1 u #d
022 $a2311-7524
024 7 $a10.3390/horticulturae9111179$2DOI
100 1 $aGONZALEZ NIETO, L.
245 $aMetamitron thinning efficacy of apple fruitlets is affected by different rates, timings and weather factors in New York State.$h[electronic resource]
260 $c2023
500 $aArticle history: Submission received: 6 October 2023, Revised: 24 October 2023, Accepted: 26 October 2023, Published: 28 October 2023. -- Document type: Article Gold Open Access. -- Correspondence: Gonzalez Nieto, L.; Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, NY, United States; email:lg579@cornell.edu -- This article belongs to the Collection Precision Management Systems for Sustainable Orchards and Vineyards (https://www.mdpi.com/journal/horticulturae/topical_collections/QAD12207C7 ). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
520 $aABSTRACT.- Precision chemical thinning is the most common method of thinning apple fruitlets because it requires little time and is cost-effective. The aims of the current study were I.- to investigate the effect of the application of metamitron at different rates on 'Gala' apples; II.- to determine which fruit diameters were most sensitive to metamitron spray at several rates (between 180 and 500 ppm); and III- to identify the key environmental factors that explain Metamitron efficacy on a year-to-year basis. Eighteen trials were conducted over seven seasons, from 2015 to 2022 in 'Gala' apple orchards in Geneva (New York State). Metamitron was applied at different rates between 180 and 500 ppm, and the timing of the application was between petal fall (4.5 mm) and 18.5 mm fruit size. In each of the studies and years, the effect of meteorological parameters was evaluated. Our results suggest that a linear rate effect was observed in all trials, but that there were differences between the slopes of the regression every year because chemical thinning efficacy was variable year to year. The maximum metamitron efficacy was between 9.5 and 11 mm king fruit diameter; however, metamitron showed thinning efficacy at all phenological stages, from petal fall to 18.5 mm in 'Gala' apples. Our results suggest that the important meteorological factors affecting thinning efficacy were temperature and solar radiation on the day of application and for the next 6 days. The solar radiation after application of metamitron was the most important meteorological factor. Fruit drop caused by metamitron increased with low solar radiation. The minimum and maximum temperatures were also important factors in determining metamitron efficacy. A high minimum temperature (during the night) increased the fruit drop caused by metamitron and the maximum temperature during the day showed a negative correlation with the efficacy of metamitron. © 2023 by the authors.
653 $aBrevis
653 $aMaximum temperature
653 $aMetamitron
653 $aMinimum temperature
653 $aSISTEMA VEGETAL INTENSIVO - INIA
653 $aSolar radiation
653 $aThinning efficacy
700 1 $aFRANCESCATTO, P.
700 1 $aCARRA, B.
700 1 $aROBINSON, T.L.
773 $tHorticulturae, 2023, Volume 9, Issue 11, article 1179. https://doi.org/10.3390/horticulturae9111179 -- OPEN ACCESS.
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