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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 : |
25/09/2016 |
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Actualizado : |
25/09/2016 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
OTERO, A.; GOÑI, C.; SYVERTSEN, J.P. |
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Afiliación : |
ALVARO RICARDO OTERO CAMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARMEN TERESITA GOÑI ALTUNA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JAMES P. SYVERTSEN, Institute of Food and Agricultural Science (IFAS), Citrus Research and Education Center (CREC), University of Florida. |
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Título : |
Flooding and soil temperature affect water relations and photosynthesis of citrus rootstock leaves. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Acta Horticulturae, 2015, no.1065, p. 1399-1406. [Conference Paper] |
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ISBN : |
978-94-62610-53-8 |
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ISSN : |
0567-7572 |
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DOI : |
10.17660/ActaHortic.2015.1065.177 |
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Idioma : |
Inglés |
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Notas : |
Proc. XII International Citrus Congress - International Society of Citriculture. Eds. B. Sabater-Muñoz, P. Moreno, L. Peña, L. Navarro (3 vols.) |
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Contenido : |
ABSTRACT.
We evaluated the effects of the soil temperature (15, 25 and 35°C) and soil anoxia from flooding for 20 days on citrus rootstock seedlings of CT33 trifoliate, Carrizo citrange and Troyer citrange along with Tucuman, Pomeroy and Rubidoux trifoliates in a greenhouse. Flooding had no effect on shoot water potential (Ψs) at 25°C but at 15°C and 35°C, there were differences from non-flooded trees. Carrizo and Troyer had higher Ψs than CT33, and Tucuman had the highest Ψs among the trifoliates. Soil temperature was more important than flooding in determining plant water relations. At 35°C, ACO2 was reduced up to 14% of non-flooded plants in 4 days, particularly in CT33. In flooded seedlings, across the three genotypes, the decrease of Fv/Fm was highest at 35°C. Troyer rootstock maintained lower ACO2 at 35°C Based on leaf net gas exchange, chlorophyll fluorescence and water relations,
above optimal soil temperature accelerates seedling deterioration. CT33 was less tolerant than Carrizo and Troyer at 35°C, whereas Tucuman, Pomeroy and Rubidoux had similar tolerance to anoxia regardless of soil temperature. |
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Palabras claves : |
ABIOTIC STRESSES; ANOXIA; CITRUS ROOTSTOCK; PHOTOSYNTHESIS; TEMPERATURE. |
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Thesagro : |
CITRUS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02065naa a2200265 a 4500
001 1055734
005 2016-09-25
008 2015 bl uuuu u00u1 u #d
020 $a978-94-62610-53-8
022 $a0567-7572
024 7 $a10.17660/ActaHortic.2015.1065.177$2DOI
100 1 $aOTERO, A.
245 $aFlooding and soil temperature affect water relations and photosynthesis of citrus rootstock leaves.$h[electronic resource]
260 $c2015
500 $aProc. XII International Citrus Congress - International Society of Citriculture. Eds. B. Sabater-Muñoz, P. Moreno, L. Peña, L. Navarro (3 vols.)
520 $aABSTRACT. We evaluated the effects of the soil temperature (15, 25 and 35°C) and soil anoxia from flooding for 20 days on citrus rootstock seedlings of CT33 trifoliate, Carrizo citrange and Troyer citrange along with Tucuman, Pomeroy and Rubidoux trifoliates in a greenhouse. Flooding had no effect on shoot water potential (Ψs) at 25°C but at 15°C and 35°C, there were differences from non-flooded trees. Carrizo and Troyer had higher Ψs than CT33, and Tucuman had the highest Ψs among the trifoliates. Soil temperature was more important than flooding in determining plant water relations. At 35°C, ACO2 was reduced up to 14% of non-flooded plants in 4 days, particularly in CT33. In flooded seedlings, across the three genotypes, the decrease of Fv/Fm was highest at 35°C. Troyer rootstock maintained lower ACO2 at 35°C Based on leaf net gas exchange, chlorophyll fluorescence and water relations, above optimal soil temperature accelerates seedling deterioration. CT33 was less tolerant than Carrizo and Troyer at 35°C, whereas Tucuman, Pomeroy and Rubidoux had similar tolerance to anoxia regardless of soil temperature.
650 $aCITRUS
653 $aABIOTIC STRESSES
653 $aANOXIA
653 $aCITRUS ROOTSTOCK
653 $aPHOTOSYNTHESIS
653 $aTEMPERATURE
700 1 $aGOÑI, C.
700 1 $aSYVERTSEN, J.P.
773 $tActa Horticulturae, 2015, no.1065, p. 1399-1406. [Conference Paper]
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
27/01/2021 |
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Actualizado : |
27/01/2021 |
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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 : |
BERRUETA, C.; GIMÉNEZ, G.; DOGLIOTTI, S. |
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Afiliación : |
MARIA CECILIA BERRUETA MOREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO GIMÉNEZ FRANQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO DOGLIOTTI, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Scaling up from crop to farm level: Co-innovation framework to improve vegetable farm systems sustainability. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Agricultural Systems, April 2021, Volume 189, Article number 103055. Doi: https://doi.org/10.1016/j.agsy.2021.103055 |
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ISSN : |
0308-521X |
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DOI : |
10.1016/j.agsy.2021.103055 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 6 July 2020; Received in revised form 7 January 2021; Accepted 8 January 2021; Available online 15 January 2021.
Corresponding author: Cecilia Berrueta. E-mail address: cberrueta@inia.org.uy |
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Contenido : |
Abstract-
CONTEXT: Successful scaling up from crop level research to adoption by farmers depends on its practitioners being aware of the constraints that arise as scaling up proceeds. Promising ideas from crop level research are not adopted by farmers in many cases. OBJECTIVE: Scaling up is explored here in a study conducted in five vegetable farms in south Uruguay, where tomato production was one of the main sources of income. We aimed to evaluate the redesign process at both levels (crop and farm) focusing on: synergies and trade-offs between crop yield and farm system improvement and how critical crop constraints could be solved at farm level. METHODS: Improved crop management practices were proposed following yield gap analysis recommendations developed in previous studies, aiming to maximise crop yield and inputs use efficiency. At the farm level, a multi-year plan defining crops choice, crops area and allocation of fields to crops was designed to match resource demands to supply, especially for labour. Redesign plans were implemented for one year, with 66% of redesigned activities adopted at farm level and 86% at crop level. RESULTS AND CONCLUSIONS: We found several examples where farm system adjustment conflicted with crop yield maximization. We also found constraints prioritised as bottlenecks for crop yield improvement, which require solutions at the farm level. For instance, fertigation problems (quantity and timing) explained part of the yield gap in tomato. Overcoming these constraints requires farm system settings, e.g. adjustment of cropping area to water availability, development of suitable water reservoirs and infrastructure for water distribution and fertilisers injection, besides adjustment of a fertigation plan according to crop demand, soil fertility and greenhouse environment at crop level. Crop yield limiting factors identified through yield gap analysis, considered inside a farm system redesign process, could be a powerful tool to better targeting crop management recommendations to overall farm performance improvement. SIGNIFICANCE: The consideration of farm systems as a whole showed greater economic and environmental impacts than focusing only on the main crop due to synergies and trade-offs among farm system components. Multi-scale analysis showed that recommendations from crop research need to be tailored to farm context and objectives considering synergies and trade-offs.
© 2021 Elsevier Ltd MenosAbstract-
CONTEXT: Successful scaling up from crop level research to adoption by farmers depends on its practitioners being aware of the constraints that arise as scaling up proceeds. Promising ideas from crop level research are not adopted by farmers in many cases. OBJECTIVE: Scaling up is explored here in a study conducted in five vegetable farms in south Uruguay, where tomato production was one of the main sources of income. We aimed to evaluate the redesign process at both levels (crop and farm) focusing on: synergies and trade-offs between crop yield and farm system improvement and how critical crop constraints could be solved at farm level. METHODS: Improved crop management practices were proposed following yield gap analysis recommendations developed in previous studies, aiming to maximise crop yield and inputs use efficiency. At the farm level, a multi-year plan defining crops choice, crops area and allocation of fields to crops was designed to match resource demands to supply, especially for labour. Redesign plans were implemented for one year, with 66% of redesigned activities adopted at farm level and 86% at crop level. RESULTS AND CONCLUSIONS: We found several examples where farm system adjustment conflicted with crop yield maximization. We also found constraints prioritised as bottlenecks for crop yield improvement, which require solutions at the farm level. For instance, fertigation problems (quantity and timing) explained part of the yield gap in tomato. Overc... Presentar Todo |
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Palabras claves : |
Crop management; Family farms; Farm system; Redesign at farm level; Yield gap analysis. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 03464naa a2200241 a 4500
001 1061687
005 2021-01-27
008 2021 bl uuuu u00u1 u #d
022 $a0308-521X
024 7 $a10.1016/j.agsy.2021.103055$2DOI
100 1 $aBERRUETA, C.
245 $aScaling up from crop to farm level$bCo-innovation framework to improve vegetable farm systems sustainability.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 6 July 2020; Received in revised form 7 January 2021; Accepted 8 January 2021; Available online 15 January 2021. Corresponding author: Cecilia Berrueta. E-mail address: cberrueta@inia.org.uy
520 $aAbstract- CONTEXT: Successful scaling up from crop level research to adoption by farmers depends on its practitioners being aware of the constraints that arise as scaling up proceeds. Promising ideas from crop level research are not adopted by farmers in many cases. OBJECTIVE: Scaling up is explored here in a study conducted in five vegetable farms in south Uruguay, where tomato production was one of the main sources of income. We aimed to evaluate the redesign process at both levels (crop and farm) focusing on: synergies and trade-offs between crop yield and farm system improvement and how critical crop constraints could be solved at farm level. METHODS: Improved crop management practices were proposed following yield gap analysis recommendations developed in previous studies, aiming to maximise crop yield and inputs use efficiency. At the farm level, a multi-year plan defining crops choice, crops area and allocation of fields to crops was designed to match resource demands to supply, especially for labour. Redesign plans were implemented for one year, with 66% of redesigned activities adopted at farm level and 86% at crop level. RESULTS AND CONCLUSIONS: We found several examples where farm system adjustment conflicted with crop yield maximization. We also found constraints prioritised as bottlenecks for crop yield improvement, which require solutions at the farm level. For instance, fertigation problems (quantity and timing) explained part of the yield gap in tomato. Overcoming these constraints requires farm system settings, e.g. adjustment of cropping area to water availability, development of suitable water reservoirs and infrastructure for water distribution and fertilisers injection, besides adjustment of a fertigation plan according to crop demand, soil fertility and greenhouse environment at crop level. Crop yield limiting factors identified through yield gap analysis, considered inside a farm system redesign process, could be a powerful tool to better targeting crop management recommendations to overall farm performance improvement. SIGNIFICANCE: The consideration of farm systems as a whole showed greater economic and environmental impacts than focusing only on the main crop due to synergies and trade-offs among farm system components. Multi-scale analysis showed that recommendations from crop research need to be tailored to farm context and objectives considering synergies and trade-offs. © 2021 Elsevier Ltd
653 $aCrop management
653 $aFamily farms
653 $aFarm system
653 $aRedesign at farm level
653 $aYield gap analysis
700 1 $aGIMÉNEZ, G.
700 1 $aDOGLIOTTI, S.
773 $tAgricultural Systems, April 2021, Volume 189, Article number 103055. Doi: https://doi.org/10.1016/j.agsy.2021.103055
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