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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
01/02/2016 |
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Actualizado : |
11/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
TARLERA, S.; CAPURRO, M.C.; IRISARRI, P.; FERNÁNDEZ SCAVINO, A.; CANTOU, G.; ROEL, A. |
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Afiliación : |
SILVANA TARLERA, FACULTAD DE QUÍMICA, UDELAR, UY.; MARIA CRISTINA CAPURRO BAZZANO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PILAR IRISARRI, FACULTAD DE AGRONOMÍA, UDELAR, UY.; ANA FERNÀNDEZ SCAVINO, FACULTAD DE QUÍMICA, UDELAR, UY.; MARIA GUILLERMINA CANTOU MAYOL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Yield-scaled global potential of two irrigation management systems in a highly productive rice systems. |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
Scientia Agricola, 2016, v. 73, no. 1 p. 43-50. |
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ISSN : |
1678-992X |
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DOI : |
10.1590/0103-9016-2015-0050 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received February 06, 2015; accepted June 05, 2015; published 2016. |
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Contenido : |
Abstract:
Water management impacts both methane (CH4) and nitrous oxide (N2O) emissions from rice paddy fields. Although controlled irrigation is one of the most important tools for reducing CH4emission in rice production systems it can also increase N2O emissions and reduce crop yields. Over three years, CH4 and N2O emissions were measured in a rice field in Uruguay under two different irrigation management systems, using static closed chambers: conventional water management (continuous flooding after 30 days of emergence, CF30); and an alternative system (controlled deficit irrigation allowing for wetting and drying, AWDI). AWDI showed mean cumulative CH4 emission values of 98.4 kg CH4 ha−1, 55 % lower compared to CF30, while no differences in nitrous oxide emissions were observed between treatments ( p > 0.05). No yield differences between irrigation systems were observed in two of the rice seasons ( p > 0.05) while AWDI promoted yield reduction in one of the seasons ( p< 0.05). When rice yield and greenhouse gases (GHG) emissions were considered together, the AWDI irrigation system allowed for lower yield-scaled total global warming potential (GWP). Higher irrigation water productivity was achieved under AWDI in two of the three rice seasons. These findings suggest that AWDI could be an option for reducing GHG emissions and increasing irrigation water productivity. However, AWDI may compromise grain yield in certain years, reflecting the importance of the need for fine tuning of this irrigation strategy and an assessment of the overall tradeoff between relationships in order to promote its adoption by farmers. MenosAbstract:
Water management impacts both methane (CH4) and nitrous oxide (N2O) emissions from rice paddy fields. Although controlled irrigation is one of the most important tools for reducing CH4emission in rice production systems it can also increase N2O emissions and reduce crop yields. Over three years, CH4 and N2O emissions were measured in a rice field in Uruguay under two different irrigation management systems, using static closed chambers: conventional water management (continuous flooding after 30 days of emergence, CF30); and an alternative system (controlled deficit irrigation allowing for wetting and drying, AWDI). AWDI showed mean cumulative CH4 emission values of 98.4 kg CH4 ha−1, 55 % lower compared to CF30, while no differences in nitrous oxide emissions were observed between treatments ( p > 0.05). No yield differences between irrigation systems were observed in two of the rice seasons ( p > 0.05) while AWDI promoted yield reduction in one of the seasons ( p< 0.05). When rice yield and greenhouse gases (GHG) emissions were considered together, the AWDI irrigation system allowed for lower yield-scaled total global warming potential (GWP). Higher irrigation water productivity was achieved under AWDI in two of the three rice seasons. These findings suggest that AWDI could be an option for reducing GHG emissions and increasing irrigation water productivity. However, AWDI may compromise grain yield in certain years, reflecting the importance of the need for ... Presentar Todo |
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Palabras claves : |
EMISIONES DE METANO; EMISIONES DE ÓXIDO NITROSO; EMISSIONS; GREENHOUSE GASES; METHANE; MITIGATION; NITROUS OXIDE. |
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Thesagro : |
ARROZ; GASES DE EFECTO INVERNADERO; MANEJO DEL AGUA; RIEGO. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5473/1/Capurro-arb-2016-1.pdf
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Marc : |
LEADER 02708naa a2200349 a 4500
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008 2016 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $a10.1590/0103-9016-2015-0050$2DOI
100 1 $aTARLERA, S.
245 $aYield-scaled global potential of two irrigation management systems in a highly productive rice systems.$h[electronic resource]
260 $c2016
500 $aArticle history: Received February 06, 2015; accepted June 05, 2015; published 2016.
520 $aAbstract: Water management impacts both methane (CH4) and nitrous oxide (N2O) emissions from rice paddy fields. Although controlled irrigation is one of the most important tools for reducing CH4emission in rice production systems it can also increase N2O emissions and reduce crop yields. Over three years, CH4 and N2O emissions were measured in a rice field in Uruguay under two different irrigation management systems, using static closed chambers: conventional water management (continuous flooding after 30 days of emergence, CF30); and an alternative system (controlled deficit irrigation allowing for wetting and drying, AWDI). AWDI showed mean cumulative CH4 emission values of 98.4 kg CH4 ha−1, 55 % lower compared to CF30, while no differences in nitrous oxide emissions were observed between treatments ( p > 0.05). No yield differences between irrigation systems were observed in two of the rice seasons ( p > 0.05) while AWDI promoted yield reduction in one of the seasons ( p< 0.05). When rice yield and greenhouse gases (GHG) emissions were considered together, the AWDI irrigation system allowed for lower yield-scaled total global warming potential (GWP). Higher irrigation water productivity was achieved under AWDI in two of the three rice seasons. These findings suggest that AWDI could be an option for reducing GHG emissions and increasing irrigation water productivity. However, AWDI may compromise grain yield in certain years, reflecting the importance of the need for fine tuning of this irrigation strategy and an assessment of the overall tradeoff between relationships in order to promote its adoption by farmers.
650 $aARROZ
650 $aGASES DE EFECTO INVERNADERO
650 $aMANEJO DEL AGUA
650 $aRIEGO
653 $aEMISIONES DE METANO
653 $aEMISIONES DE ÓXIDO NITROSO
653 $aEMISSIONS
653 $aGREENHOUSE GASES
653 $aMETHANE
653 $aMITIGATION
653 $aNITROUS OXIDE
700 1 $aCAPURRO, M.C.
700 1 $aIRISARRI, P.
700 1 $aFERNÁNDEZ SCAVINO, A.
700 1 $aCANTOU, G.
700 1 $aROEL, A.
773 $tScientia Agricola, 2016$gv. 73, no. 1 p. 43-50.
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Registro original : |
INIA Treinta y Tres (TT) |
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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; INIA Tacuarembó. |
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Fecha actual : |
05/09/2014 |
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Actualizado : |
24/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 2 |
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Autor : |
REYNO, R.; NARANCIO, R.; SPERANZA, P.; DO CANTO, J.; LOPEZ-CARRO, B.; HERNANDEZ, P.; BURGUEÑO, J.; REAL, D.; DALLA RIZZA, M. |
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Afiliación : |
RAFAEL ALEJANDRO REYNO PODESTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; RAFAEL NARANCIO FERES, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; JAVIER DO CANTO FAGUNDEZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; DANIEL REAL FERREIRO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARCO DALLA RIZZA VILARO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Molecular and cytogenetic characterization of a collection of bahiagrass (Paspalum notatum Flügge) native to Uruguay. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Genetic Resources and Crop Evolution, 2012, v. 59, no.8, p. 1823-1832. |
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ISSN : |
0925-9864 |
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DOI : |
10.1007/s10722-012-9806-x |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 9 August 2011 / Accepted: 30 January 2012 / Published online: 22 February 2012. |
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Contenido : |
ABSTRACT.
Paspalum notatum is a subtropical grass present throughout America, and one of the main constituents of the natural grasslands in Uruguay. An
apomictic autotetraploid (2n = 4x = 40) is the most frequent cytotype. The occurrence of sexual diploids (2n = 2x = 20) has also been reported as well as the occasional presence of apomictic triploids and pentaploids in Argentina. In this study, ISSR (inter simple sequence repeats) molecular markers were used to analyze the genetic variability of 210 P. notatum individuals from a collection from Uruguay. Cytometric analyses and chromosome counts were used to assess the ploidy level of the individuals. All plants from Uruguay analyzed were tetraploid. Intra- and inter-population variability was found both in genomic DNA content and at the genotypic level. Several multilocus genotypes were shared among individuals within populations and among populations over moderate geographical ranges, at the same time, very dissimilar genotypes were found within the same population. Part of the genetic variance among populations can be explained by a broader scale geographic structure which is partly coincident with the traditionally recognized grassland management regions. In spite of the apparently high degree of genetic admixture within populations, groups of related genotypes seem to follow a broader geographical structure in the area under study. These results suggest that an efficient collection strategy for this apomictically reproducing species should include carefully planned intra- and inter-population sampling. A broader scale regional sampling strategy should also be considered although further studies will be required to define genetic structure at this level.
© 2012 Springer Science+Business Media B.V. MenosABSTRACT.
Paspalum notatum is a subtropical grass present throughout America, and one of the main constituents of the natural grasslands in Uruguay. An
apomictic autotetraploid (2n = 4x = 40) is the most frequent cytotype. The occurrence of sexual diploids (2n = 2x = 20) has also been reported as well as the occasional presence of apomictic triploids and pentaploids in Argentina. In this study, ISSR (inter simple sequence repeats) molecular markers were used to analyze the genetic variability of 210 P. notatum individuals from a collection from Uruguay. Cytometric analyses and chromosome counts were used to assess the ploidy level of the individuals. All plants from Uruguay analyzed were tetraploid. Intra- and inter-population variability was found both in genomic DNA content and at the genotypic level. Several multilocus genotypes were shared among individuals within populations and among populations over moderate geographical ranges, at the same time, very dissimilar genotypes were found within the same population. Part of the genetic variance among populations can be explained by a broader scale geographic structure which is partly coincident with the traditionally recognized grassland management regions. In spite of the apparently high degree of genetic admixture within populations, groups of related genotypes seem to follow a broader geographical structure in the area under study. These results suggest that an efficient collection strategy for this apomictically reprod... Presentar Todo |
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Thesagro : |
MARCADORES GENÉTICOS; PASPALUM NOTATUM; PLANTAS FORRAJERAS. |
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Asunto categoría : |
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F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 02728naa a2200289 a 4500
001 1051274
005 2021-06-24
008 2012 bl uuuu u00u1 u #d
022 $a0925-9864
024 7 $a10.1007/s10722-012-9806-x$2DOI
100 1 $aREYNO, R.
245 $aMolecular and cytogenetic characterization of a collection of bahiagrass (Paspalum notatum Flügge) native to Uruguay.
260 $c2012
500 $aArticle history: Received: 9 August 2011 / Accepted: 30 January 2012 / Published online: 22 February 2012.
520 $aABSTRACT. Paspalum notatum is a subtropical grass present throughout America, and one of the main constituents of the natural grasslands in Uruguay. An apomictic autotetraploid (2n = 4x = 40) is the most frequent cytotype. The occurrence of sexual diploids (2n = 2x = 20) has also been reported as well as the occasional presence of apomictic triploids and pentaploids in Argentina. In this study, ISSR (inter simple sequence repeats) molecular markers were used to analyze the genetic variability of 210 P. notatum individuals from a collection from Uruguay. Cytometric analyses and chromosome counts were used to assess the ploidy level of the individuals. All plants from Uruguay analyzed were tetraploid. Intra- and inter-population variability was found both in genomic DNA content and at the genotypic level. Several multilocus genotypes were shared among individuals within populations and among populations over moderate geographical ranges, at the same time, very dissimilar genotypes were found within the same population. Part of the genetic variance among populations can be explained by a broader scale geographic structure which is partly coincident with the traditionally recognized grassland management regions. In spite of the apparently high degree of genetic admixture within populations, groups of related genotypes seem to follow a broader geographical structure in the area under study. These results suggest that an efficient collection strategy for this apomictically reproducing species should include carefully planned intra- and inter-population sampling. A broader scale regional sampling strategy should also be considered although further studies will be required to define genetic structure at this level. © 2012 Springer Science+Business Media B.V.
650 $aMARCADORES GENÉTICOS
650 $aPASPALUM NOTATUM
650 $aPLANTAS FORRAJERAS
700 1 $aNARANCIO, R.
700 1 $aSPERANZA, P.
700 1 $aDO CANTO, J.
700 1 $aLOPEZ-CARRO, B.
700 1 $aHERNANDEZ, P.
700 1 $aBURGUEÑO, J.
700 1 $aREAL, D.
700 1 $aDALLA RIZZA, M.
773 $tGenetic Resources and Crop Evolution, 2012$gv. 59, no.8, p. 1823-1832.
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