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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
21/02/2014 |
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Actualizado : |
01/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
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Autor : |
RIVAS, F.; MARTÍNEZ FUENTES, A.; MESEJO, C.; REIG, C.; AGUSTÍ, M. |
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Afiliación : |
CARLOS FERNANDO RIVAS GRELA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Efecto hormonal y nutricional del anillado en frutos de diferentes tipos de brotes de cítricos. [Girdling effect on fruitlets hormonal and nutritional content in different Citrus shoot types]. |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
Agrociencia, 2010, v. 14, no. 1, p.8-14. |
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ISSN : |
1510-0839 |
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Idioma : |
Español |
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Notas : |
Article history: Recibido 24/10/09 // Aceptado 17/3/10. |
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Contenido : |
RESUMEN.
En el presente trabajo se estudió el efecto del anillado de ramas sobre la abscisión de frutos en diferentes tipos de brotes y su relación con el contenido de ácido abscísico (ABA) y carbohidratos durante la fase de cuajado en árboles adultos de mandarina ?Clemenules? (Citrus reticulata Blanco). Además, se cuantificó la cosecha luego de la aplicación de inhibidores de la Fase I (Cyocel, CCC) y II (Paclobutrazol, PBZ) de la síntesis de Giberelinas (GAs). Se observó que ambos inhibidores de la síntesis de GAs, redujeron hasta un 40 % la cosecha total, mientras que en combinación con el anillado los niveles fueron similares al testigo sin tratar. Asimismo el PBZ redujo los niveles de azúcares totales mientras que en combinación con el anillado, a los 30 días del tratamiento, se logró restablecer los niveles del control. En frutitos de brotes con y sin hojas el anillado redujo en más de 60 % el nivel de ABA a los siete
días luego del tratamiento, siguiendo además una tendencia similar en ambos tipos de brote. Este descenso en los niveles de ABA fue precedido de una reducción de la tasa de abscisión, la cual se mantuvo en niveles significativamente inferiores para los tipos de brotes estudiados hasta los 60 días después del anillado. Para el caso de los brotes sin hojas la abscisión al final del período de evaluación fue similar al control, mientras que en el caso de brotes con hojas se redujo. Se evidencia por tanto el efecto directo del anillado sobre los niveles de ABA, pudiendo explicar así la reducción de la abscisión y la posible implicancia del anillado en la modificación de la relación GAs/ABA durante la fase de cuajado, independientemente del tipo de brote.
SUMMARY.
In this paper we studied the effect of branch girdling on fruitlets abscission arising from different shoot types, and its relationship with abscisic acid (ABA) and carbohydrates content in adult trees of ?Clemenules? mandarin (Citrus reticulata Blanco). Besides, girdling combined with two gibberellin inhibitors of phases I and II (Cycocel and Paclobutrazol), was evaluated by recording total crop at harvest. Both growth inhibitors reduced crop by 40% whereas in combination with girdling reached the level of control trees. Paralleling this effect, PBZ reduced total carbohydrates content in young fruitlets, whereas combined with girdling, within 30 days of treatment, carbohydrates level were restores to that of control trees. Concomitantly, girdling reduced by more than 60 % ABA content in fruitlets at seven days after treatment, following a similar trend in both types of shoots. This decrease in ABA level was followed by a reduction in the rate of fruitlets abscission, which remained at levels significantly lower for the type of shoots studied until 60 days after treatment. Final fruit set of leafless inflorescences was not affected by girdling, whereas leafy inflorescence reduced abscission at the end of physiological fruit drop. Thus, the present work reveals that girdling can improve fruit set by early modifications of carbohydrates and GAs/ABA relationship regardless of shoot type. MenosRESUMEN.
En el presente trabajo se estudió el efecto del anillado de ramas sobre la abscisión de frutos en diferentes tipos de brotes y su relación con el contenido de ácido abscísico (ABA) y carbohidratos durante la fase de cuajado en árboles adultos de mandarina ?Clemenules? (Citrus reticulata Blanco). Además, se cuantificó la cosecha luego de la aplicación de inhibidores de la Fase I (Cyocel, CCC) y II (Paclobutrazol, PBZ) de la síntesis de Giberelinas (GAs). Se observó que ambos inhibidores de la síntesis de GAs, redujeron hasta un 40 % la cosecha total, mientras que en combinación con el anillado los niveles fueron similares al testigo sin tratar. Asimismo el PBZ redujo los niveles de azúcares totales mientras que en combinación con el anillado, a los 30 días del tratamiento, se logró restablecer los niveles del control. En frutitos de brotes con y sin hojas el anillado redujo en más de 60 % el nivel de ABA a los siete
días luego del tratamiento, siguiendo además una tendencia similar en ambos tipos de brote. Este descenso en los niveles de ABA fue precedido de una reducción de la tasa de abscisión, la cual se mantuvo en niveles significativamente inferiores para los tipos de brotes estudiados hasta los 60 días después del anillado. Para el caso de los brotes sin hojas la abscisión al final del período de evaluación fue similar al control, mientras que en el caso de brotes con hojas se redujo. Se evidencia por tanto el efecto directo del anillado sobre los niveles de AB... Presentar Todo |
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Palabras claves : |
ABSCISIC ACID; ÁCIDO ABSCÍSICO; CARBOHYDRATES; FRUIT SET; GIBBERELLINS; GIBERELINAS. |
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Thesagro : |
CARBOHIDRATOS; CITRUS; CUAJADO; FRUCTIFICACION. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12180/1/135-310-1-SM.pdf
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Marc : |
LEADER 04102naa a2200313 a 4500
001 1027693
005 2019-10-01
008 2010 bl uuuu u00u1 u #d
022 $a1510-0839
100 1 $aRIVAS, F.
245 $aEfecto hormonal y nutricional del anillado en frutos de diferentes tipos de brotes de cítricos. [Girdling effect on fruitlets hormonal and nutritional content in different Citrus shoot types].
260 $c2010
500 $aArticle history: Recibido 24/10/09 // Aceptado 17/3/10.
520 $aRESUMEN. En el presente trabajo se estudió el efecto del anillado de ramas sobre la abscisión de frutos en diferentes tipos de brotes y su relación con el contenido de ácido abscísico (ABA) y carbohidratos durante la fase de cuajado en árboles adultos de mandarina ?Clemenules? (Citrus reticulata Blanco). Además, se cuantificó la cosecha luego de la aplicación de inhibidores de la Fase I (Cyocel, CCC) y II (Paclobutrazol, PBZ) de la síntesis de Giberelinas (GAs). Se observó que ambos inhibidores de la síntesis de GAs, redujeron hasta un 40 % la cosecha total, mientras que en combinación con el anillado los niveles fueron similares al testigo sin tratar. Asimismo el PBZ redujo los niveles de azúcares totales mientras que en combinación con el anillado, a los 30 días del tratamiento, se logró restablecer los niveles del control. En frutitos de brotes con y sin hojas el anillado redujo en más de 60 % el nivel de ABA a los siete días luego del tratamiento, siguiendo además una tendencia similar en ambos tipos de brote. Este descenso en los niveles de ABA fue precedido de una reducción de la tasa de abscisión, la cual se mantuvo en niveles significativamente inferiores para los tipos de brotes estudiados hasta los 60 días después del anillado. Para el caso de los brotes sin hojas la abscisión al final del período de evaluación fue similar al control, mientras que en el caso de brotes con hojas se redujo. Se evidencia por tanto el efecto directo del anillado sobre los niveles de ABA, pudiendo explicar así la reducción de la abscisión y la posible implicancia del anillado en la modificación de la relación GAs/ABA durante la fase de cuajado, independientemente del tipo de brote. SUMMARY. In this paper we studied the effect of branch girdling on fruitlets abscission arising from different shoot types, and its relationship with abscisic acid (ABA) and carbohydrates content in adult trees of ?Clemenules? mandarin (Citrus reticulata Blanco). Besides, girdling combined with two gibberellin inhibitors of phases I and II (Cycocel and Paclobutrazol), was evaluated by recording total crop at harvest. Both growth inhibitors reduced crop by 40% whereas in combination with girdling reached the level of control trees. Paralleling this effect, PBZ reduced total carbohydrates content in young fruitlets, whereas combined with girdling, within 30 days of treatment, carbohydrates level were restores to that of control trees. Concomitantly, girdling reduced by more than 60 % ABA content in fruitlets at seven days after treatment, following a similar trend in both types of shoots. This decrease in ABA level was followed by a reduction in the rate of fruitlets abscission, which remained at levels significantly lower for the type of shoots studied until 60 days after treatment. Final fruit set of leafless inflorescences was not affected by girdling, whereas leafy inflorescence reduced abscission at the end of physiological fruit drop. Thus, the present work reveals that girdling can improve fruit set by early modifications of carbohydrates and GAs/ABA relationship regardless of shoot type.
650 $aCARBOHIDRATOS
650 $aCITRUS
650 $aCUAJADO
650 $aFRUCTIFICACION
653 $aABSCISIC ACID
653 $aÁCIDO ABSCÍSICO
653 $aCARBOHYDRATES
653 $aFRUIT SET
653 $aGIBBERELLINS
653 $aGIBERELINAS
700 1 $aMARTÍNEZ FUENTES, A.
700 1 $aMESEJO, C.
700 1 $aREIG, C.
700 1 $aAGUSTÍ, M.
773 $tAgrociencia, 2010$gv. 14, no. 1, p.8-14.
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
10/12/2020 |
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Actualizado : |
10/12/2020 |
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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 : |
DUMONT, B.; MODERNEL, P.; BENOIT, M.; RUGGIA, A.; SOCA, P.; DERNAT, S.; TOURNADRE, H.; DOGLIOTTI, S.; ROSSING, W. |
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Afiliación : |
BERTRAND DUMONT, Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, Saint-Genès Champanelle, France; PABLO MODERNEL, Wageningen University & Research, Wageningen, Netherlands; Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; MARC BENOIT, Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, Saint-Genès Champanelle, France; ANDREA PAOLA RUGGIA CHIESA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO SOCA, Université Clermont Auvergne, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement, AgroParisTech, VetAgro Sup, UMR Territoires, Aubière, France; SYLVAIN DERNAT, Université Clermont Auvergne, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement, AgroParisTech, VetAgro Sup, UMR Territoires, Aubière, France; HERVÉ TOURNADRE, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement, UE Herbipôle, Saint-Genès-Champanelle, France; SANTIAGO DOGLIOTTI, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; WALTER A.H. ROSSING, Wageningen University & Research, Wageningen, Netherlands. |
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Título : |
Mobilizing ecological processes for herbivore production: farmers and researchers learning together. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Frontiers in Sustainable Food Systems, 16 November 2020, Volume 4, Article number 544828. OPEN ACCESS. Doi: https://doi.org/10.3389/fsufs.2020.544828 |
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ISSN : |
2571-581X |
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DOI : |
10.3389/fsufs.2020.544828 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 22 March 2020; Accepted: 24 September 2020; Published: 16 November 2020.
Edited by: Iain James Gordon, Australian National University, Australia. Reviewed by: Jane Addison, James Cook University, Australia;
Luis F. Goulao, University of Lisbon, Portugal; Carlos Gonzalez Fischer, New Zealand Agricultural Greenhouse Gas Research Centre, New Zealand.
Corresponding author: Bertrand Dumont, bertrand.dumont@inrae.fr |
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Contenido : |
ABSTRACT.
Grazing plays a key role in reducing the external inputs required for ruminant production and in alleviating feed-food competition. Beyond the production of meat and milk, grassland-based systems provide a wide range of ecosystem services. Agroecology and organic farming aim to reconcile natural resource management and food production, in the long term, based on the management of ecological processes. In this perspective paper, we report what we have learned from case studies with beef cattle, sheep, and dairy cattle across Uruguay and western Europe, in which we have been involved. Multicriteria methods, such as Pareto frontiers and positive deviances, were used to analyze trade-offs and identify win?wins from farm surveys. Long-term farm networks coupled with bioeconomic optimization models revealed fluctuations in farm income and allowed estimating system resilience. Extensive farmlet experiments made it possible to integrate knowledge on animal physiology and grassland ecology in the system redesign process and to test for innovative and risky management options that could lead to unacceptable learning costs in commercial farms. Finally, learning from farmers' local knowledge in teams with researchers and technical advisers can provide positive changes in grazing systems. In Uruguayan family farms, for example, the scientific knowledge gained from farmlet experiments led to advice on management options based on farm-specific diagnosis. Farmers adapted the proposals, with researchers supporting the processes by providing quantitative information on consequences and spaces for reflection. In a French cheese production area, the focus was on farmers' own experience. Games facilitated interactions as participants could challenge each other's reasoning and conclusions in a safe environment. These two case studies illustrate the diversity of co-innovation approaches, but in both cases knowledge sharing between researchers, farmers, and other stakeholders appeared more efficient to help farmers understand and adapt their own system properties than researching ?best practice? solutions for large-scale transfer.
© Copyright © 2020 Dumont, Modernel, Benoit, Ruggia, Soca, Dernat, Tournadre, Dogliotti and Rossing. MenosABSTRACT.
Grazing plays a key role in reducing the external inputs required for ruminant production and in alleviating feed-food competition. Beyond the production of meat and milk, grassland-based systems provide a wide range of ecosystem services. Agroecology and organic farming aim to reconcile natural resource management and food production, in the long term, based on the management of ecological processes. In this perspective paper, we report what we have learned from case studies with beef cattle, sheep, and dairy cattle across Uruguay and western Europe, in which we have been involved. Multicriteria methods, such as Pareto frontiers and positive deviances, were used to analyze trade-offs and identify win?wins from farm surveys. Long-term farm networks coupled with bioeconomic optimization models revealed fluctuations in farm income and allowed estimating system resilience. Extensive farmlet experiments made it possible to integrate knowledge on animal physiology and grassland ecology in the system redesign process and to test for innovative and risky management options that could lead to unacceptable learning costs in commercial farms. Finally, learning from farmers' local knowledge in teams with researchers and technical advisers can provide positive changes in grazing systems. In Uruguayan family farms, for example, the scientific knowledge gained from farmlet experiments led to advice on management options based on farm-specific diagnosis. Farmers adapted the propo... Presentar Todo |
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Palabras claves : |
AGROECOLOGY; CO-INNOVATION; GRAZING; MANAGEMENT; TRADE-OFFS. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
https://www.frontiersin.org/articles/10.3389/fsufs.2020.544828/full
https://www.frontiersin.org/articles/10.3389/fsufs.2020.544828/pdf
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Marc : |
LEADER 03640naa a2200313 a 4500
001 1061558
005 2020-12-10
008 2020 bl uuuu u00u1 u #d
022 $a2571-581X
024 7 $a10.3389/fsufs.2020.544828$2DOI
100 1 $aDUMONT, B.
245 $aMobilizing ecological processes for herbivore production$bfarmers and researchers learning together.$h[electronic resource]
260 $c2020
500 $aArticle history: Received: 22 March 2020; Accepted: 24 September 2020; Published: 16 November 2020. Edited by: Iain James Gordon, Australian National University, Australia. Reviewed by: Jane Addison, James Cook University, Australia; Luis F. Goulao, University of Lisbon, Portugal; Carlos Gonzalez Fischer, New Zealand Agricultural Greenhouse Gas Research Centre, New Zealand. Corresponding author: Bertrand Dumont, bertrand.dumont@inrae.fr
520 $aABSTRACT. Grazing plays a key role in reducing the external inputs required for ruminant production and in alleviating feed-food competition. Beyond the production of meat and milk, grassland-based systems provide a wide range of ecosystem services. Agroecology and organic farming aim to reconcile natural resource management and food production, in the long term, based on the management of ecological processes. In this perspective paper, we report what we have learned from case studies with beef cattle, sheep, and dairy cattle across Uruguay and western Europe, in which we have been involved. Multicriteria methods, such as Pareto frontiers and positive deviances, were used to analyze trade-offs and identify win?wins from farm surveys. Long-term farm networks coupled with bioeconomic optimization models revealed fluctuations in farm income and allowed estimating system resilience. Extensive farmlet experiments made it possible to integrate knowledge on animal physiology and grassland ecology in the system redesign process and to test for innovative and risky management options that could lead to unacceptable learning costs in commercial farms. Finally, learning from farmers' local knowledge in teams with researchers and technical advisers can provide positive changes in grazing systems. In Uruguayan family farms, for example, the scientific knowledge gained from farmlet experiments led to advice on management options based on farm-specific diagnosis. Farmers adapted the proposals, with researchers supporting the processes by providing quantitative information on consequences and spaces for reflection. In a French cheese production area, the focus was on farmers' own experience. Games facilitated interactions as participants could challenge each other's reasoning and conclusions in a safe environment. These two case studies illustrate the diversity of co-innovation approaches, but in both cases knowledge sharing between researchers, farmers, and other stakeholders appeared more efficient to help farmers understand and adapt their own system properties than researching ?best practice? solutions for large-scale transfer. © Copyright © 2020 Dumont, Modernel, Benoit, Ruggia, Soca, Dernat, Tournadre, Dogliotti and Rossing.
653 $aAGROECOLOGY
653 $aCO-INNOVATION
653 $aGRAZING
653 $aMANAGEMENT
653 $aTRADE-OFFS
700 1 $aMODERNEL, P.
700 1 $aBENOIT, M.
700 1 $aRUGGIA, A.
700 1 $aSOCA, P.
700 1 $aDERNAT, S.
700 1 $aTOURNADRE, H.
700 1 $aDOGLIOTTI, S.
700 1 $aROSSING, W.
773 $tFrontiers in Sustainable Food Systems, 16 November 2020, Volume 4, Article number 544828. OPEN ACCESS. Doi: https://doi.org/10.3389/fsufs.2020.544828
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