|
|
![](/consulta/web/img/deny.png) | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
22/02/2021 |
Actualizado : |
22/02/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
MAESO, D.; FEDERICI, M.; MARTÍNEZ, A.; SILVERA, M.; GONCALVEZ, L. |
Afiliación : |
DIEGO CESAR MAESO TOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA TERESA FEDERICI RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. MARTÍNEZ, Facultad de Ciencias, Universidad de la Repu?blica, Montevideo, Uruguay.; MARIANA SILVERA ORREGO, Facultad de Ciencias, Universidad de la Repu?blica, Montevideo, Uruguay.; ANA LUCIA GONCALVEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Studies on pear decline disease in Uruguay. [Conference paper]. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Acta Horticulturae, February 2021, N°1303, p. 343-350. DOI: https://doi.org/10.17660/ActaHortic.2021.1303.48 |
ISSN : |
0567-7572 (print); 2406-6168 (electronic) |
DOI : |
10.17660/ActaHortic.2021.1303.48 |
Idioma : |
Inglés |
Notas : |
Article history: Published 5 February 2021. In: Acta Horticulturae (ISHS) 1303: XIII International Pear Symposium, Montevideo, Uruguay. Conveners: Roberto Zoppolo, Danilo Cabrera. Editors: Roberto Zoppolo, Danilo Cabrera, D. Granatstein. |
Contenido : |
Abstract:
Pear decline (PD) caused by 'Candidatus Phytoplasma pyri' (subgroup 16SrX-C of apple proliferation or AP group of phytoplasmas) is an important pear disease (Pyrus communis L.). Pear production in Uruguay is based on 'Williams' plants initially grafted on quince that are planted deep and thus transformed into scion-rooted trees. Less vigorous rootstocks like Pyrus spp. and quinces that could be more susceptible to decline are beginning to be used for precocity. Surveys were conducted on plants grafted on different rootstocks to know if PD was present in the pear growing area of Uruguay (southern part near Montevideo city) by searching for premature reddening, upward rolling of leaves and decline. Phytoplasmas were observed in 35 of 70 samples using the DAPI (4',6-diamidino-2-fenilindol) staining test. Ten positive and 10 negative samples were analyzed by polymerase chain reaction (PCR) assay using AP-group specific primers f01/r01. A 930 bp amplicon was obtained only from all DAPI positive samples. The f01/r01 amplicon was sequenced and showed 100% identity with the 16S rRNA gene sequence of PD phytoplasma in the NCBI database. A relationship was observed between phytoplasma detection, reddening, psylla infestation and premature leaf fall in this survey in 1995. Presence of PD-symptoms and phytoplasma detection by PCR were also evaluated in an experiment where 20 pear scion/rootstock combinations were compared during 2005-2011. Plants of self-rooted 'Williams' or grafted onto OH×F 40 and OH×F 69 stocks showed less early reddening and leaf fall than plants grafted onto quince rootstocks. Phytoplasma detection in this trial varied among seasons and was not associated with the presence of symptoms. Phytoplasmas were detected in pear psylla insects during the whole 2009-2011 seasons in four pear orchards. An association between the effectiveness of psylla control, phytoplasma detection and early reddening and leaf fall was found in an experiment with traditional 'Williams' self-rooted plants in 2011. These results indicate the presence of PD phytoplasma in Uruguayan pear orchards and in psylla insects during the whole season.
@ International Society for Horticultural Science. MenosAbstract:
Pear decline (PD) caused by 'Candidatus Phytoplasma pyri' (subgroup 16SrX-C of apple proliferation or AP group of phytoplasmas) is an important pear disease (Pyrus communis L.). Pear production in Uruguay is based on 'Williams' plants initially grafted on quince that are planted deep and thus transformed into scion-rooted trees. Less vigorous rootstocks like Pyrus spp. and quinces that could be more susceptible to decline are beginning to be used for precocity. Surveys were conducted on plants grafted on different rootstocks to know if PD was present in the pear growing area of Uruguay (southern part near Montevideo city) by searching for premature reddening, upward rolling of leaves and decline. Phytoplasmas were observed in 35 of 70 samples using the DAPI (4',6-diamidino-2-fenilindol) staining test. Ten positive and 10 negative samples were analyzed by polymerase chain reaction (PCR) assay using AP-group specific primers f01/r01. A 930 bp amplicon was obtained only from all DAPI positive samples. The f01/r01 amplicon was sequenced and showed 100% identity with the 16S rRNA gene sequence of PD phytoplasma in the NCBI database. A relationship was observed between phytoplasma detection, reddening, psylla infestation and premature leaf fall in this survey in 1995. Presence of PD-symptoms and phytoplasma detection by PCR were also evaluated in an experiment where 20 pear scion/rootstock combinations were compared during 2005-2011. Plants of self-rooted 'Williams' or g... Presentar Todo |
Palabras claves : |
Cacopsylla bidens; Candidatus Phytoplasma pyri; European pear; Scion-rootstock affinity. |
Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
Marc : |
LEADER 03270naa a2200253 a 4500 001 1061745 005 2021-02-22 008 2021 bl uuuu u00u1 u #d 022 $a0567-7572 (print); 2406-6168 (electronic) 024 7 $a10.17660/ActaHortic.2021.1303.48$2DOI 100 1 $aMAESO, D. 245 $aStudies on pear decline disease in Uruguay. [Conference paper].$h[electronic resource] 260 $c2021 500 $aArticle history: Published 5 February 2021. In: Acta Horticulturae (ISHS) 1303: XIII International Pear Symposium, Montevideo, Uruguay. Conveners: Roberto Zoppolo, Danilo Cabrera. Editors: Roberto Zoppolo, Danilo Cabrera, D. Granatstein. 520 $aAbstract: Pear decline (PD) caused by 'Candidatus Phytoplasma pyri' (subgroup 16SrX-C of apple proliferation or AP group of phytoplasmas) is an important pear disease (Pyrus communis L.). Pear production in Uruguay is based on 'Williams' plants initially grafted on quince that are planted deep and thus transformed into scion-rooted trees. Less vigorous rootstocks like Pyrus spp. and quinces that could be more susceptible to decline are beginning to be used for precocity. Surveys were conducted on plants grafted on different rootstocks to know if PD was present in the pear growing area of Uruguay (southern part near Montevideo city) by searching for premature reddening, upward rolling of leaves and decline. Phytoplasmas were observed in 35 of 70 samples using the DAPI (4',6-diamidino-2-fenilindol) staining test. Ten positive and 10 negative samples were analyzed by polymerase chain reaction (PCR) assay using AP-group specific primers f01/r01. A 930 bp amplicon was obtained only from all DAPI positive samples. The f01/r01 amplicon was sequenced and showed 100% identity with the 16S rRNA gene sequence of PD phytoplasma in the NCBI database. A relationship was observed between phytoplasma detection, reddening, psylla infestation and premature leaf fall in this survey in 1995. Presence of PD-symptoms and phytoplasma detection by PCR were also evaluated in an experiment where 20 pear scion/rootstock combinations were compared during 2005-2011. Plants of self-rooted 'Williams' or grafted onto OH×F 40 and OH×F 69 stocks showed less early reddening and leaf fall than plants grafted onto quince rootstocks. Phytoplasma detection in this trial varied among seasons and was not associated with the presence of symptoms. Phytoplasmas were detected in pear psylla insects during the whole 2009-2011 seasons in four pear orchards. An association between the effectiveness of psylla control, phytoplasma detection and early reddening and leaf fall was found in an experiment with traditional 'Williams' self-rooted plants in 2011. These results indicate the presence of PD phytoplasma in Uruguayan pear orchards and in psylla insects during the whole season. @ International Society for Horticultural Science. 653 $aCacopsylla bidens 653 $aCandidatus Phytoplasma pyri 653 $aEuropean pear 653 $aScion-rootstock affinity 700 1 $aFEDERICI, M. 700 1 $aMARTÍNEZ, A. 700 1 $aSILVERA, M. 700 1 $aGONCALVEZ, L. 773 $tActa Horticulturae, February 2021, N°1303, p. 343-350. DOI: https://doi.org/10.17660/ActaHortic.2021.1303.48
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA Las Brujas (LB) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
21/02/2014 |
Actualizado : |
10/05/2018 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
GARCIA, C.; CARLESSO, R.; FIORIN, T.T.; DE BONA, F.D.; MELO, G.L. |
Afiliación : |
CLAUDIO CESAR GARCIA GALLARRETA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; R. CARLESSO; T.T. FIORIN; F.D. DE BONA; G.L. MELO. |
Título : |
Modificaçoes morfologicas das plantas de milho submetidas a diferentes manejos de água de irrigaçao. |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
ln: Workshop em Engenharia Agrícola (2002 : Santa Maria, RS), Mostra dos trabalhos científicos do PPGEA do ano de 2002 / Santa Maria, RS : Universidade Federal de Santa Maria, Centro de Ciências Rurais, Programa de Pós-Graduação em Engenh 2002. |
Páginas : |
p. 148-152 |
Idioma : |
Portugués |
Notas : |
Publicado en Anais do XXXI Congresso Brasileiro de Engenharia Agrícola - CONBEA 2002, Salvador - BA, 29 junho a 2 de agosto de 2002 Brasil. Ministério da Educaçao; Universidade Federal de Santa María. Centro de Ciencias Rurais. Programa de Pós-Graduaçao em Engenharia Agrícola |
Contenido : |
ABSTRACT:
The objective of this experiment was to evaluate the application of different values of maximum crop evapotranspiration as irrigation trigger on maize growth. The experiment was conducted during the 2000/2001 growing season in the experimental field of the Agricultura) Engineering Department of the Federal University of Santa Maria, RS-BRAZIL. A set of 24 drainage lysimeters was used. The experimental site was protected against rainfall by a mobile arch rainshelter. Maize plants were submitted to five irrigated treatments. Irrigation 's were applied when cumulative daily maximum .crop evapotranspiration (ETmc), estimated by the Penman-Monteith equation, reached values of 14, 22, 30, 38 and 46 mm. A completely randomized design was used with four replications. Results demonstrated that there were no differences for leaf area indet. Use of the irrigation water management of 34 mm of ETmc resulted in higher plants.
RESUMO:
O objetivo desse experimento foi avaliar modifica\:5es morfológicas de plantas de milho submetidas a diferentes manejos da água de irriga\:iio. O experimento foi conduzido no ano agrícola de 2000/2001 em área experimental do Departamento de Engenharia Rural da Universidade Federal de Santa Maria-RS. O experimento foi realizado em um conjunto de 24 lisímetros de drenagem construídos em fibra de vidro com dimens5es de 1,40 m x 0,95 me protegidos das recipita\:5es pluviais através de urna cobertura móvel de polietileno impermeável. O experimento foi conduzido no delineamento experimental inteiramente casualizado, com quatro repeti\:5es. As plantas de milho foram submetidas a cinco manejos da água de irriga\:ao. Irriga\:5es foram aplicadas sempre que a evapotranspira\:ao máxima da cultura acumulada (ETma) estimada pelo método de Penman-Monteith alcan\:ava valores de 14, 22, 30, 38 e 46 mm. Os resultados demonstraram que entre todos os manejos da água de irriga\:ao aplicados nao houve diferen\:as significativas para índice de área foliar final. O manejo da água de irrigaºªº de 34 mm de valor da ETma ocasionou mais altura de plantas de milho. MenosABSTRACT:
The objective of this experiment was to evaluate the application of different values of maximum crop evapotranspiration as irrigation trigger on maize growth. The experiment was conducted during the 2000/2001 growing season in the experimental field of the Agricultura) Engineering Department of the Federal University of Santa Maria, RS-BRAZIL. A set of 24 drainage lysimeters was used. The experimental site was protected against rainfall by a mobile arch rainshelter. Maize plants were submitted to five irrigated treatments. Irrigation 's were applied when cumulative daily maximum .crop evapotranspiration (ETmc), estimated by the Penman-Monteith equation, reached values of 14, 22, 30, 38 and 46 mm. A completely randomized design was used with four replications. Results demonstrated that there were no differences for leaf area indet. Use of the irrigation water management of 34 mm of ETmc resulted in higher plants.
RESUMO:
O objetivo desse experimento foi avaliar modifica\:5es morfológicas de plantas de milho submetidas a diferentes manejos da água de irriga\:iio. O experimento foi conduzido no ano agrícola de 2000/2001 em área experimental do Departamento de Engenharia Rural da Universidade Federal de Santa Maria-RS. O experimento foi realizado em um conjunto de 24 lisímetros de drenagem construídos em fibra de vidro com dimens5es de 1,40 m x 0,95 me protegidos das recipita\:5es pluviais através de urna cobertura móvel de polietileno impermeável. O experimento fo... Presentar Todo |
Palabras claves : |
EVAPOTRANSPIRAÇAO; EVAPOTRANSPIRATION; ÍNDICE DE ÁREA FOLIAR; IRRIGATION MANAGEMENT; LEAF AREA INDEX; MANEJO DE IRRIGAÇAO. |
Thesagro : |
EVAPOTRANSPIRACION; INDICE DE SUPERFICIE FOLIAR; MAIZ; MANEJO DEL SUELO; RIEGO. |
Asunto categoría : |
P05 Gestión de recursos energéticos |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9536/1/Garcia-C.-2002.-PPGEA-2002-p.148-152.pdf
|
Marc : |
LEADER 03509naa a2200325 a 4500 001 1010842 005 2018-05-10 008 2002 bl uuuu u00u1 u #d 100 1 $aGARCIA, C. 245 $aModificaçoes morfologicas das plantas de milho submetidas a diferentes manejos de água de irrigaçao. 260 $c2002 300 $ap. 148-152 500 $aPublicado en Anais do XXXI Congresso Brasileiro de Engenharia Agrícola - CONBEA 2002, Salvador - BA, 29 junho a 2 de agosto de 2002 Brasil. Ministério da Educaçao; Universidade Federal de Santa María. Centro de Ciencias Rurais. Programa de Pós-Graduaçao em Engenharia Agrícola 520 $aABSTRACT: The objective of this experiment was to evaluate the application of different values of maximum crop evapotranspiration as irrigation trigger on maize growth. The experiment was conducted during the 2000/2001 growing season in the experimental field of the Agricultura) Engineering Department of the Federal University of Santa Maria, RS-BRAZIL. A set of 24 drainage lysimeters was used. The experimental site was protected against rainfall by a mobile arch rainshelter. Maize plants were submitted to five irrigated treatments. Irrigation 's were applied when cumulative daily maximum .crop evapotranspiration (ETmc), estimated by the Penman-Monteith equation, reached values of 14, 22, 30, 38 and 46 mm. A completely randomized design was used with four replications. Results demonstrated that there were no differences for leaf area indet. Use of the irrigation water management of 34 mm of ETmc resulted in higher plants. RESUMO: O objetivo desse experimento foi avaliar modifica\:5es morfológicas de plantas de milho submetidas a diferentes manejos da água de irriga\:iio. O experimento foi conduzido no ano agrícola de 2000/2001 em área experimental do Departamento de Engenharia Rural da Universidade Federal de Santa Maria-RS. O experimento foi realizado em um conjunto de 24 lisímetros de drenagem construídos em fibra de vidro com dimens5es de 1,40 m x 0,95 me protegidos das recipita\:5es pluviais através de urna cobertura móvel de polietileno impermeável. O experimento foi conduzido no delineamento experimental inteiramente casualizado, com quatro repeti\:5es. As plantas de milho foram submetidas a cinco manejos da água de irriga\:ao. Irriga\:5es foram aplicadas sempre que a evapotranspira\:ao máxima da cultura acumulada (ETma) estimada pelo método de Penman-Monteith alcan\:ava valores de 14, 22, 30, 38 e 46 mm. Os resultados demonstraram que entre todos os manejos da água de irriga\:ao aplicados nao houve diferen\:as significativas para índice de área foliar final. O manejo da água de irrigaºªº de 34 mm de valor da ETma ocasionou mais altura de plantas de milho. 650 $aEVAPOTRANSPIRACION 650 $aINDICE DE SUPERFICIE FOLIAR 650 $aMAIZ 650 $aMANEJO DEL SUELO 650 $aRIEGO 653 $aEVAPOTRANSPIRAÇAO 653 $aEVAPOTRANSPIRATION 653 $aÍNDICE DE ÁREA FOLIAR 653 $aIRRIGATION MANAGEMENT 653 $aLEAF AREA INDEX 653 $aMANEJO DE IRRIGAÇAO 700 1 $aCARLESSO, R. 700 1 $aFIORIN, T.T. 700 1 $aDE BONA, F.D. 700 1 $aMELO, G.L. 773 $tln: Workshop em Engenharia Agrícola (2002 : Santa Maria, RS), Mostra dos trabalhos científicos do PPGEA do ano de 2002 / Santa Maria, RS : Universidade Federal de Santa Maria, Centro de Ciências Rurais, Programa de Pós-Graduação em Engenh 2002.
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA Las Brujas (LB) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
Expresión de búsqueda válido. Check! |
|
|