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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
26/06/2017 |
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Actualizado : |
26/06/2017 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
FERRARI, V.; DISEGNA, E.; DELLACASSA, E.; CONIBERTI, A. |
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Afiliación : |
VIRGINIA PAULINA FERRARI MORENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDGARDO JOSE DISEGNA LIGUORI, 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. |
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Título : |
Influence of timing and intensity of fruit zone leaf removal and kaolin applications on bunch rot control and quality improvement of Sauvignon blanc grapes, and wines, in a temperate humid climate. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Scientia Horticulturae, 2017, v.223, p. 62-71. |
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ISSN : |
0304-4238 |
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DOI : |
10.1016/j.scienta.2017.05.034 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 6 November 2016; Received in revised form 22 May 2017; Accepted 24 May 2017. Available online 27 May 2017. |
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Contenido : |
ABSTRACT.
Leaf removal is beginning to receive consideration for many growers as an important cultural practice for bunch rots control. It is normally applied after veraison and almost only on red varieties because of the high sunburn susceptibility of white grapes varieties under Uruguayan climatic conditions. The aim of this study was to determine the time and intensity of leaves removal impact on bunch rots and grapes quality on Sauvignon blanc. In parallel, the effects of kaolin (Surround® WP) applications in reducing the negative impact of excessive exposure to high temperatures were evaluated. Different intensities and times of defoliation, in combination with kaolin applications, were evaluated over 2006/07, 2007/08 and 2008/09 seasons. All defoliation treatments and mainly those made after fruit set, significantly reduced the occurrence of bunch rots, having a critical impact on those metabolites responsible for the final taste of wines. Early defoliation was significantly more effective controlling Botrytis incidence and improving berry quality than later in the season. Leaf removal had a determining impact over fruit quality and primary and secondary metabolites contents. An increase in soluble solids and glycosides concentrations was observed, while IBMP grape content was reduced, thus affecting the flavor of Sauvignon blanc wines. Kaolin applications significantly reduced berries temperature, sunburn and other berry damages associated with clusters solar exposure. In sum, leaves removal and exogenous kaolin application in Sauvignon blanc showed great potential as Botrytis mitigation strategy because it positively impacts berry quality as a result of many molecular and biochemical changes in key secondary metabolic pathways. Simultaneously reducing berry sunburn.
© 2017 Elsevier B.V. All rights reserved. MenosABSTRACT.
Leaf removal is beginning to receive consideration for many growers as an important cultural practice for bunch rots control. It is normally applied after veraison and almost only on red varieties because of the high sunburn susceptibility of white grapes varieties under Uruguayan climatic conditions. The aim of this study was to determine the time and intensity of leaves removal impact on bunch rots and grapes quality on Sauvignon blanc. In parallel, the effects of kaolin (Surround® WP) applications in reducing the negative impact of excessive exposure to high temperatures were evaluated. Different intensities and times of defoliation, in combination with kaolin applications, were evaluated over 2006/07, 2007/08 and 2008/09 seasons. All defoliation treatments and mainly those made after fruit set, significantly reduced the occurrence of bunch rots, having a critical impact on those metabolites responsible for the final taste of wines. Early defoliation was significantly more effective controlling Botrytis incidence and improving berry quality than later in the season. Leaf removal had a determining impact over fruit quality and primary and secondary metabolites contents. An increase in soluble solids and glycosides concentrations was observed, while IBMP grape content was reduced, thus affecting the flavor of Sauvignon blanc wines. Kaolin applications significantly reduced berries temperature, sunburn and other berry damages associated with clusters solar exposu... Presentar Todo |
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Palabras claves : |
BROWNING; BUNCH ROTS; KAOLIN; LEAF REMOVAL; SAUVIGNON BLANC. |
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Thesagro : |
VARIEDADES; VID; VITICULTURA. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02865naa a2200289 a 4500
001 1057301
005 2017-06-26
008 2017 bl uuuu u00u1 u #d
022 $a0304-4238
024 7 $a10.1016/j.scienta.2017.05.034$2DOI
100 1 $aFERRARI, V.
245 $aInfluence of timing and intensity of fruit zone leaf removal and kaolin applications on bunch rot control and quality improvement of Sauvignon blanc grapes, and wines, in a temperate humid climate.$h[electronic resource]
260 $c2017
500 $aArticle history: Received 6 November 2016; Received in revised form 22 May 2017; Accepted 24 May 2017. Available online 27 May 2017.
520 $aABSTRACT. Leaf removal is beginning to receive consideration for many growers as an important cultural practice for bunch rots control. It is normally applied after veraison and almost only on red varieties because of the high sunburn susceptibility of white grapes varieties under Uruguayan climatic conditions. The aim of this study was to determine the time and intensity of leaves removal impact on bunch rots and grapes quality on Sauvignon blanc. In parallel, the effects of kaolin (Surround® WP) applications in reducing the negative impact of excessive exposure to high temperatures were evaluated. Different intensities and times of defoliation, in combination with kaolin applications, were evaluated over 2006/07, 2007/08 and 2008/09 seasons. All defoliation treatments and mainly those made after fruit set, significantly reduced the occurrence of bunch rots, having a critical impact on those metabolites responsible for the final taste of wines. Early defoliation was significantly more effective controlling Botrytis incidence and improving berry quality than later in the season. Leaf removal had a determining impact over fruit quality and primary and secondary metabolites contents. An increase in soluble solids and glycosides concentrations was observed, while IBMP grape content was reduced, thus affecting the flavor of Sauvignon blanc wines. Kaolin applications significantly reduced berries temperature, sunburn and other berry damages associated with clusters solar exposure. In sum, leaves removal and exogenous kaolin application in Sauvignon blanc showed great potential as Botrytis mitigation strategy because it positively impacts berry quality as a result of many molecular and biochemical changes in key secondary metabolic pathways. Simultaneously reducing berry sunburn. © 2017 Elsevier B.V. All rights reserved.
650 $aVARIEDADES
650 $aVID
650 $aVITICULTURA
653 $aBROWNING
653 $aBUNCH ROTS
653 $aKAOLIN
653 $aLEAF REMOVAL
653 $aSAUVIGNON BLANC
700 1 $aDISEGNA, E.
700 1 $aDELLACASSA, E.
700 1 $aCONIBERTI, A.
773 $tScientia Horticulturae, 2017$gv.223, p. 62-71.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
23/08/2022 |
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Actualizado : |
22/05/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
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Circulación / Nivel : |
Nacional - -- |
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Autor : |
CARRACELAS, B.; NAVAJAS, E.; VERA, B.; CIAPPESONI, G. |
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Afiliación : |
EMERITA BEATRIZ CARRACELAS MARQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; BRENDA VERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
SNP arrays evaluation as tools in genetic improvement in Corriedale sheep in Uruguay. [Evaluación de paneles de SNP como herramientas en la mejora genética de ovinos Corriedale en Uruguay]. [Avaliação de painéis de SNP como ferramentas em melhoramento genético de ovinos Corriedale no Uruguai]. |
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Complemento del título : |
Animal production and pastures. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Agrociencia Uruguay, 2022, vol. 26, number 2, article e998. doi: https://doi.org/10.31285/AGRO.26.998 |
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ISSN : |
2730-5066 |
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DOI : |
10.31285/AGRO.26.998 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 09 Feb 2022; Accepted 30 May 2022; Published 19 Aug 2022. Editor: Mariana Carriquiry, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. Correspondence: Beatriz Carracelas, bcarracelas@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (CC BY 4.0). |
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Contenido : |
ABSTRACT.- One control strategy for gastrointestinal nematodes (GIN) is genetic selection. This studys objective was to compare eggs per gram of feces (FEC) and fiber diameter (FD) estimated breeding values (EBV) and genomic EBV (GEBV) in Corriedale breed. Analysis included 19547 lambs with data, and 454, 711 and 383 genotypes from 170, 507 and 50K SNP chips, respectively. A univariate animal model was used for EBV and GEBV estimation, which included contemporary group, type of birth and dam age as fixed effects, and age at recording as covariate. Differential weights (?) were considered in the genomic relationship matrix (G), and the best fit models were identified using Akaikes Information Criterion (AIC), which were later used for GEBV and accuracies estimation. The use of only impacted on low density SNP chips. No differences were observed in mean accuracies for the whole population. However, in the genotyped subgroup accuracies increased by 2% with the 170 SNP chip (?=0.25), and by 5% (?=0.5) and 14% (?=0.75) with the 507 SNP chip. No differences were observed in FD EBV and GEBV mean accuracies. These results show that it is possible to increase GEBV accuracies despite the use of low-density chips -.-.-.-.-.-.-.-.-.-.-.-..-RESUMEN.- Una alternativa para el control de losnematodos gastrointestinales (NGI) es la selección genética. El objetivo de este trabajo fue comparar las precisiones de los valores de cría (EBV) y los EBV genómicos (GEBV) del recuento de huevos por gramo en heces (HPG) y diámetro de fibra (DF) en la raza Corriedale. El análisis incluyó 19547 corderos con datos fenotípicos y 454, 711 y 383 genotipados con paneles o chips de 170, 507 y 50K SNP, respectivamente. Los EBV y GEBV se estimaron con un modelo animal univariado que incluyó los efectos fijos:grupo contemporáneo, tipo de nacimiento y edad de la madre,y edad al registro como covariable. Se consideraron pesos diferenciales (?) en la matriz de relaciones genómicas, identificándose los modelos con mejor ajuste con el criterio de información de Akaike (AIC), que fueron utili-zados para la estimación de los GEBV y sus precisiones. El uso de ?solo impactó en el ajuste con paneles de baja densidad. No se encontraron diferencias en las precisiones promedio de la población total. En cambio, en el subgrupo de animales genotipados las precisiones aumentaron 2% con 170 SNP (?=0.25), y con 507 SNP 5% (?=0.5) y 14% (?=0.75). No hubo diferencias en precisiones de los EBV y los GEBV de DF. Los resultados muestran que es posible aumentar las precisiones de los GEBV aun con paneles de baja densidad. -.-.-.-.-.-.-.-.-.-.-.-..-RESUMO.- Uma alternativa para o controle de nematóidesgastrointestinais (NGI) é a seleção genética. O objetivo deste trabalho foi comparar as precisões dos valores genéticos estimados (EBV) e dos EBVs genômicos (GEBV) da contagem de ovos por grama de fezes (OPG) e diâmetro de fibra (DF) na raça Corriedale. Aanálise incluiu 19547 cordeiros com dados e 454, 711 e 383 genotipados de 170, 507 e 50K SNPs, respectivamente. Foram estimados os EBV e GEBV com um modelo animal univariado que incluiu efeitos fixos de grupo contemporâneo, tipo de nascimento e idade da mãe e idade no registro (covariável). Pesos diferenciais (?) foram considerados na matriz de relações genômicas, identificando os modelos com melhor ajuste via critério de informação de Akaike (AIC), os quais foram utilizados para estimar o GEBV e suas precisões. O uso de ?=0.75 somente impactou no ajuste com painéis de baixa densidade. Não foram encontradas diferenças na precisão média da população total. Em contraste, no subgrupo de animais genotipados as precisões aumentaram 2% com 170 SNPs (?=0.25), e com 507 SNPs 5% (?=0.5) e 14% (?=0.75). Não houve diferenças na precisão de EBV e GEBV de DF. Os resultados mostram que é possível aumentar a precisão de GEBVs mesmo que se utilizem painéis de baixa densidade. MenosABSTRACT.- One control strategy for gastrointestinal nematodes (GIN) is genetic selection. This studys objective was to compare eggs per gram of feces (FEC) and fiber diameter (FD) estimated breeding values (EBV) and genomic EBV (GEBV) in Corriedale breed. Analysis included 19547 lambs with data, and 454, 711 and 383 genotypes from 170, 507 and 50K SNP chips, respectively. A univariate animal model was used for EBV and GEBV estimation, which included contemporary group, type of birth and dam age as fixed effects, and age at recording as covariate. Differential weights (?) were considered in the genomic relationship matrix (G), and the best fit models were identified using Akaikes Information Criterion (AIC), which were later used for GEBV and accuracies estimation. The use of only impacted on low density SNP chips. No differences were observed in mean accuracies for the whole population. However, in the genotyped subgroup accuracies increased by 2% with the 170 SNP chip (?=0.25), and by 5% (?=0.5) and 14% (?=0.75) with the 507 SNP chip. No differences were observed in FD EBV and GEBV mean accuracies. These results show that it is possible to increase GEBV accuracies despite the use of low-density chips -.-.-.-.-.-.-.-.-.-.-.-..-RESUMEN.- Una alternativa para el control de losnematodos gastrointestinales (NGI) es la selección genética. El objetivo de este trabajo fue comparar las precisiones de los valores de cría (EBV) y los EBV genómicos (GEBV) del recuento... Presentar Todo |
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Palabras claves : |
Accuracy; FEC; GEBV; HPG; OPG; Precisão; Precisión. |
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Thesagro : |
CORRIEDALE. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16637/1/998-Article-Text-6221-1-10-20220819.pdf
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Marc : |
LEADER 05383naa a2200289 a 4500
001 1063543
005 2023-05-22
008 2022 bl uuuu u00u1 u #d
022 $a2730-5066
024 7 $a10.31285/AGRO.26.998$2DOI
100 1 $aCARRACELAS, B.
245 $aSNP arrays evaluation as tools in genetic improvement in Corriedale sheep in Uruguay. [Evaluación de paneles de SNP como herramientas en la mejora genética de ovinos Corriedale en Uruguay]. [Avaliação de painéis de SNP como ferramentas em melhoramento genético de ovinos Corriedale no Uruguai].$h[electronic resource]
260 $c2022
500 $aArticle history: Received 09 Feb 2022; Accepted 30 May 2022; Published 19 Aug 2022. Editor: Mariana Carriquiry, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. Correspondence: Beatriz Carracelas, bcarracelas@inia.org.uy -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (CC BY 4.0).
520 $aABSTRACT.- One control strategy for gastrointestinal nematodes (GIN) is genetic selection. This studys objective was to compare eggs per gram of feces (FEC) and fiber diameter (FD) estimated breeding values (EBV) and genomic EBV (GEBV) in Corriedale breed. Analysis included 19547 lambs with data, and 454, 711 and 383 genotypes from 170, 507 and 50K SNP chips, respectively. A univariate animal model was used for EBV and GEBV estimation, which included contemporary group, type of birth and dam age as fixed effects, and age at recording as covariate. Differential weights (?) were considered in the genomic relationship matrix (G), and the best fit models were identified using Akaikes Information Criterion (AIC), which were later used for GEBV and accuracies estimation. The use of only impacted on low density SNP chips. No differences were observed in mean accuracies for the whole population. However, in the genotyped subgroup accuracies increased by 2% with the 170 SNP chip (?=0.25), and by 5% (?=0.5) and 14% (?=0.75) with the 507 SNP chip. No differences were observed in FD EBV and GEBV mean accuracies. These results show that it is possible to increase GEBV accuracies despite the use of low-density chips -.-.-.-.-.-.-.-.-.-.-.-..-RESUMEN.- Una alternativa para el control de losnematodos gastrointestinales (NGI) es la selección genética. El objetivo de este trabajo fue comparar las precisiones de los valores de cría (EBV) y los EBV genómicos (GEBV) del recuento de huevos por gramo en heces (HPG) y diámetro de fibra (DF) en la raza Corriedale. El análisis incluyó 19547 corderos con datos fenotípicos y 454, 711 y 383 genotipados con paneles o chips de 170, 507 y 50K SNP, respectivamente. Los EBV y GEBV se estimaron con un modelo animal univariado que incluyó los efectos fijos:grupo contemporáneo, tipo de nacimiento y edad de la madre,y edad al registro como covariable. Se consideraron pesos diferenciales (?) en la matriz de relaciones genómicas, identificándose los modelos con mejor ajuste con el criterio de información de Akaike (AIC), que fueron utili-zados para la estimación de los GEBV y sus precisiones. El uso de ?solo impactó en el ajuste con paneles de baja densidad. No se encontraron diferencias en las precisiones promedio de la población total. En cambio, en el subgrupo de animales genotipados las precisiones aumentaron 2% con 170 SNP (?=0.25), y con 507 SNP 5% (?=0.5) y 14% (?=0.75). No hubo diferencias en precisiones de los EBV y los GEBV de DF. Los resultados muestran que es posible aumentar las precisiones de los GEBV aun con paneles de baja densidad. -.-.-.-.-.-.-.-.-.-.-.-..-RESUMO.- Uma alternativa para o controle de nematóidesgastrointestinais (NGI) é a seleção genética. O objetivo deste trabalho foi comparar as precisões dos valores genéticos estimados (EBV) e dos EBVs genômicos (GEBV) da contagem de ovos por grama de fezes (OPG) e diâmetro de fibra (DF) na raça Corriedale. Aanálise incluiu 19547 cordeiros com dados e 454, 711 e 383 genotipados de 170, 507 e 50K SNPs, respectivamente. Foram estimados os EBV e GEBV com um modelo animal univariado que incluiu efeitos fixos de grupo contemporâneo, tipo de nascimento e idade da mãe e idade no registro (covariável). Pesos diferenciais (?) foram considerados na matriz de relações genômicas, identificando os modelos com melhor ajuste via critério de informação de Akaike (AIC), os quais foram utilizados para estimar o GEBV e suas precisões. O uso de ?=0.75 somente impactou no ajuste com painéis de baixa densidade. Não foram encontradas diferenças na precisão média da população total. Em contraste, no subgrupo de animais genotipados as precisões aumentaram 2% com 170 SNPs (?=0.25), e com 507 SNPs 5% (?=0.5) e 14% (?=0.75). Não houve diferenças na precisão de EBV e GEBV de DF. Os resultados mostram que é possível aumentar a precisão de GEBVs mesmo que se utilizem painéis de baixa densidade.
650 $aCORRIEDALE
653 $aAccuracy
653 $aFEC
653 $aGEBV
653 $aHPG
653 $aOPG
653 $aPrecisão
653 $aPrecisión
700 1 $aNAVAJAS, E.
700 1 $aVERA, B.
700 1 $aCIAPPESONI, G.
773 $tAgrociencia Uruguay, 2022, vol. 26, number 2, article e998. doi: https://doi.org/10.31285/AGRO.26.998
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