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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
08/09/2014 |
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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 : |
HOFFMAN, E.; VIEGA, L.; GLISON, N.; CASTRO, A.; PEREYRA, S.; PÉREZ, C. |
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Afiliación : |
SILVIA ANTONIA PEREYRA CORREA, INIA La Estanzuela. |
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Título : |
Differential effects of spot blotch on photosynthesis and grain yield in two barley cultivars. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
European Journal of Plant Pathology, v. 139, n. 3, p. 471-480, 2014. |
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ISSN : |
0929-1873. |
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DOI : |
10.1007/s10658-014-0404-y |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted: 12 February 2014 /Published online: 27 February 2014. |
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Contenido : |
ABSTRACT.
Barley spot blotch (SB), caused by Cochliobolus sativus, is an important barley disease which causes extensive grain yield losses. These losses may not always correlate directly with the amount of diseased leaf area. Two barley cultivars, Quebracho (susceptible to SB) and Carumbé (with intermediate susceptibility to SB), were compared in field experiments in 2003, 2004 and 2006. Plots of each cultivar were either inoculated with C. sativus or protected with fungicide under field conditions to generate contrasting treatments: i) diseased, and ii) free of disease, respectively. SB severity over the growing season, photosynthetic rate on leaves with no visible symptoms and grain yield were assessed for each treatment and year. There was no treatment effect on cv. Carumbé, while cv. Quebracho showed a significant yield reduction, even though SB severity during the grain filling period was <10 %. This yield reduction was associated with a reduced photosynthetic rate at the beginning of the grain filling period in cv. Quebracho. A similar experiment was conducted under greenhouse conditions, adding a treatment without inoculum or fungicide. There were no differences in photosynthetic rate or grain yield per plant among treatments. These results suggest a distinct physiological response to SB infection among cultivars affecting leaf photosynthetic rate, and SB severity may not be the best estimator of yield losses caused by SB. |
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Palabras claves : |
COCHLIOBOLUS SATIVUS; HORDEUM; PHOTOSYNTHESIS; RENDIMIENTO EN GRANO; YIELD LOSSES. |
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Thesagro : |
FITOPATOLOGÍA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02358naa a2200289 a 4500
001 1050032
005 2019-10-04
008 2014 bl uuuu u00u1 u #d
022 $a0929-1873.
024 7 $a10.1007/s10658-014-0404-y$2DOI
100 1 $aHOFFMAN, E.
245 $aDifferential effects of spot blotch on photosynthesis and grain yield in two barley cultivars.$h[electronic resource]
260 $c2014
500 $aArticle history: Accepted: 12 February 2014 /Published online: 27 February 2014.
520 $aABSTRACT. Barley spot blotch (SB), caused by Cochliobolus sativus, is an important barley disease which causes extensive grain yield losses. These losses may not always correlate directly with the amount of diseased leaf area. Two barley cultivars, Quebracho (susceptible to SB) and Carumbé (with intermediate susceptibility to SB), were compared in field experiments in 2003, 2004 and 2006. Plots of each cultivar were either inoculated with C. sativus or protected with fungicide under field conditions to generate contrasting treatments: i) diseased, and ii) free of disease, respectively. SB severity over the growing season, photosynthetic rate on leaves with no visible symptoms and grain yield were assessed for each treatment and year. There was no treatment effect on cv. Carumbé, while cv. Quebracho showed a significant yield reduction, even though SB severity during the grain filling period was <10 %. This yield reduction was associated with a reduced photosynthetic rate at the beginning of the grain filling period in cv. Quebracho. A similar experiment was conducted under greenhouse conditions, adding a treatment without inoculum or fungicide. There were no differences in photosynthetic rate or grain yield per plant among treatments. These results suggest a distinct physiological response to SB infection among cultivars affecting leaf photosynthetic rate, and SB severity may not be the best estimator of yield losses caused by SB.
650 $aFITOPATOLOGÍA
653 $aCOCHLIOBOLUS SATIVUS
653 $aHORDEUM
653 $aPHOTOSYNTHESIS
653 $aRENDIMIENTO EN GRANO
653 $aYIELD LOSSES
700 1 $aVIEGA, L.
700 1 $aGLISON, N.
700 1 $aCASTRO, A.
700 1 $aPEREYRA, S.
700 1 $aPÉREZ, C.
773 $tEuropean Journal of Plant Pathology$gv. 139, n. 3, p. 471-480, 2014.
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INIA La Estanzuela (LE) |
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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 Las Brujas. |
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Fecha actual : |
02/01/2017 |
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Actualizado : |
07/02/2017 |
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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 : |
FERRARI, V.; DELLACASSA, E.; CONIBERTI, A.; DISEGNA, E. |
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Afiliación : |
VIRGINIA PAULINA FERRARI MORENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDUARDO DELLACASSA, Universidad de la República (UdelaR)/ Facultad de Química; ANDRES CONIBERTI MUNDY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDGARDO JOSE DISEGNA LIGUORI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Role of grapevine vegetative expression on Aspergillus spp. incidence and OTA accumulation in wines produced in a temperate humid climate. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Food Additives & Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment, 2017, v.34 (2), p.299-306 |
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DOI : |
10.1080/19440049.2016.1252064 |
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Idioma : |
Inglés |
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Notas : |
Article History: Received 01 Jul 2016; Accepted 17 Oct 2016; Accepted author version posted online: 24 Oct 2016; Published online: 13 Dec 2016 |
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Contenido : |
ABSTRACT.
Aspergillus spp. and Penicillium spp. are the main producers of ochratoxin A (OTA), a mycotoxin responsible for fatal human diseases. Some authorities have established a maximum of 2 μg/L of OTA in wine. Although the incidence and occurrence of OTA in grapes and wine is highly related to climate conditions, as has been extensively documented, there is no conclusive information on the effects of cultivation systems on the presence of OTA. This study focuses on determining the effect of the trellis system, planting density and cordon height on plant microclimate and thus on Aspergillus spp. contamination and OTA production in Tannat wines in Southern Uruguay. Two experiments were conducted during the 2010?2011 growing season: (1) a strip split plot design with five replicates and two cordon heights (CH) (0.5 m and 1.0 m above the soil) were compared in two planting densities (PD) (0.8 and 1.5 m between plants); (2) a randomised complete block design, vertical shoot positioning (VSP) versus Lyra trellis systems were evaluated. The results suggest that, even the macro- and micro-climate growing conditions play an important part in Aspergillus developing on grapes. Agronomical practices also have an undoubted impact on the risk and control of OTA accumulation in wine. |
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Palabras claves : |
ASPERGILLUS; MICROCLIMATE; OCHRATOXIN A; PLANTING DENSITY; TRELLIS SYSTEMS. |
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Thesagro : |
VID; VITICULTURA. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02304naa a2200265 a 4500
001 1056406
005 2017-02-07
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1080/19440049.2016.1252064$2DOI
100 1 $aFERRARI, V.
245 $aRole of grapevine vegetative expression on Aspergillus spp. incidence and OTA accumulation in wines produced in a temperate humid climate.$h[electronic resource]
260 $c2017
500 $aArticle History: Received 01 Jul 2016; Accepted 17 Oct 2016; Accepted author version posted online: 24 Oct 2016; Published online: 13 Dec 2016
520 $aABSTRACT. Aspergillus spp. and Penicillium spp. are the main producers of ochratoxin A (OTA), a mycotoxin responsible for fatal human diseases. Some authorities have established a maximum of 2 μg/L of OTA in wine. Although the incidence and occurrence of OTA in grapes and wine is highly related to climate conditions, as has been extensively documented, there is no conclusive information on the effects of cultivation systems on the presence of OTA. This study focuses on determining the effect of the trellis system, planting density and cordon height on plant microclimate and thus on Aspergillus spp. contamination and OTA production in Tannat wines in Southern Uruguay. Two experiments were conducted during the 2010?2011 growing season: (1) a strip split plot design with five replicates and two cordon heights (CH) (0.5 m and 1.0 m above the soil) were compared in two planting densities (PD) (0.8 and 1.5 m between plants); (2) a randomised complete block design, vertical shoot positioning (VSP) versus Lyra trellis systems were evaluated. The results suggest that, even the macro- and micro-climate growing conditions play an important part in Aspergillus developing on grapes. Agronomical practices also have an undoubted impact on the risk and control of OTA accumulation in wine.
650 $aVID
650 $aVITICULTURA
653 $aASPERGILLUS
653 $aMICROCLIMATE
653 $aOCHRATOXIN A
653 $aPLANTING DENSITY
653 $aTRELLIS SYSTEMS
700 1 $aDELLACASSA, E.
700 1 $aCONIBERTI, A.
700 1 $aDISEGNA, E.
773 $tFood Additives & Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment, 2017$gv.34 (2), p.299-306
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