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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
13/08/2015 |
Actualizado : |
14/05/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
REYNO, R.; REAL, D.; BRUMMER, E.C. |
Afiliación : |
RAFAEL ALEJANDRO REYNO PODESTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL REAL FERREIRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; E. CHARLES BRUMMER, University of California, Davis. |
Título : |
Comparison of two selection methods for tolerance to acidic, aluminum-rich soil in alfalfa. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Crop Science, v. 55, september-october 2015. DOI: https://doi.org/10.2135/cropsci2014.08.0543 |
DOI : |
10.2135/cropsci2014.08.0543 |
Idioma : |
Inglés |
Notas : |
Article history: Received 8 Aug. 2014; Accepted 27 Feb. 2015. Acknowledgments: The authors thank Donald Wood, Jonathan Markham, and Wesley Dean for their support with the greenhouse screening. This experiment was funded by The University of Georgia Agricultural Experiment Station and The Samuel RobertsNoble Foundation. |
Contenido : |
In acid soils (pHwater <5), Al becomes toxic, affecting alfalfa (Medicago sativa L.) root growth and development. In the southeastern United States, Al toxicity and its associated deficiencies are the most significant factors limiting alfalfa production. This study aimed to compare genetic gain for acid or Al tolerance as assessed by seedling biomass production in acidic soil under greenhouse conditions using phenotypic recurrent selection with gridding (PRSG) and among and within family selection (AWFS) in ?Bulldog 805? and PRSG in the germplasm ?Cultivated Alfalfa at the Diploid Level? (CADL) for two cycles. Selection was based on aerial biomass production
or visual score 60 d after germination in Al-rich acidic (unlimed, UL) soil and limed soil. Cycles 0, 1, and 2 from each method and population were evaluated for their root and shoot dry weight (RDW and SDW) after 60 d in UL and limed soils. Unlimed/limed soil RDW and SDW ratios were computed. CADL did not respond to selection,
probably because of the lack of initial variability for Al tolerance. Bulldog 805 selected in limed soil did not result in any improvement in limed or UL conditions but selection in UL soil improved performance in acidic soil after two cycles and did not negatively affect growth in limed soil. In Bulldog 805, PRSG had the largest response
per cycle: over 20% over Cycle 0 (C0). Direct selection in UL soil was the best way to improve growth in acidic Al-rich soils. These results need to be validated in the field. MenosIn acid soils (pHwater <5), Al becomes toxic, affecting alfalfa (Medicago sativa L.) root growth and development. In the southeastern United States, Al toxicity and its associated deficiencies are the most significant factors limiting alfalfa production. This study aimed to compare genetic gain for acid or Al tolerance as assessed by seedling biomass production in acidic soil under greenhouse conditions using phenotypic recurrent selection with gridding (PRSG) and among and within family selection (AWFS) in ?Bulldog 805? and PRSG in the germplasm ?Cultivated Alfalfa at the Diploid Level? (CADL) for two cycles. Selection was based on aerial biomass production
or visual score 60 d after germination in Al-rich acidic (unlimed, UL) soil and limed soil. Cycles 0, 1, and 2 from each method and population were evaluated for their root and shoot dry weight (RDW and SDW) after 60 d in UL and limed soils. Unlimed/limed soil RDW and SDW ratios were computed. CADL did not respond to selection,
probably because of the lack of initial variability for Al tolerance. Bulldog 805 selected in limed soil did not result in any improvement in limed or UL conditions but selection in UL soil improved performance in acidic soil after two cycles and did not negatively affect growth in limed soil. In Bulldog 805, PRSG had the largest response
per cycle: over 20% over Cycle 0 (C0). Direct selection in UL soil was the best way to improve growth in acidic Al-rich soils. These results need to be validated... Presentar Todo |
Thesagro : |
ALFALFA; MEDICAGO SATIVA. |
Asunto categoría : |
F01 Cultivo |
Marc : |
LEADER 02415naa a2200193 a 4500 001 1053225 005 2020-05-14 008 2015 bl uuuu u00u1 u #d 024 7 $a10.2135/cropsci2014.08.0543$2DOI 100 1 $aREYNO, R. 245 $aComparison of two selection methods for tolerance to acidic, aluminum-rich soil in alfalfa. 260 $c2015 500 $aArticle history: Received 8 Aug. 2014; Accepted 27 Feb. 2015. Acknowledgments: The authors thank Donald Wood, Jonathan Markham, and Wesley Dean for their support with the greenhouse screening. This experiment was funded by The University of Georgia Agricultural Experiment Station and The Samuel RobertsNoble Foundation. 520 $aIn acid soils (pHwater <5), Al becomes toxic, affecting alfalfa (Medicago sativa L.) root growth and development. In the southeastern United States, Al toxicity and its associated deficiencies are the most significant factors limiting alfalfa production. This study aimed to compare genetic gain for acid or Al tolerance as assessed by seedling biomass production in acidic soil under greenhouse conditions using phenotypic recurrent selection with gridding (PRSG) and among and within family selection (AWFS) in ?Bulldog 805? and PRSG in the germplasm ?Cultivated Alfalfa at the Diploid Level? (CADL) for two cycles. Selection was based on aerial biomass production or visual score 60 d after germination in Al-rich acidic (unlimed, UL) soil and limed soil. Cycles 0, 1, and 2 from each method and population were evaluated for their root and shoot dry weight (RDW and SDW) after 60 d in UL and limed soils. Unlimed/limed soil RDW and SDW ratios were computed. CADL did not respond to selection, probably because of the lack of initial variability for Al tolerance. Bulldog 805 selected in limed soil did not result in any improvement in limed or UL conditions but selection in UL soil improved performance in acidic soil after two cycles and did not negatively affect growth in limed soil. In Bulldog 805, PRSG had the largest response per cycle: over 20% over Cycle 0 (C0). Direct selection in UL soil was the best way to improve growth in acidic Al-rich soils. These results need to be validated in the field. 650 $aALFALFA 650 $aMEDICAGO SATIVA 700 1 $aREAL, D. 700 1 $aBRUMMER, E.C. 773 $tCrop Science$gv. 55, september-october 2015. DOI: https://doi.org/10.2135/cropsci2014.08.0543
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2. | | REAL, D. Estado actual y futuro de la producción y utilización de leguminosas forrajeras en la zona campos. In: REUNIÓN DEL GRUPO TÉCNICO EN FORRAJERAS DEL CONO SUR, ZONA CAMPOS, 19, 2002, MERCEDES, CORRIENTES, ARGENTINA; ALTUVE, S.M.; PIZZIO, R.M. (EDS.), 2002. Mercedes, Corrientes (Argentina): Grupo Campos, 2002. p. 78-82Biblioteca(s): INIA Tacuarembó. |
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5. | | REAL, D. Proyecto: Leguminosas forrajeras para la región basáltica In: BERRETTA, E.J. (Ed.). Seminario de actualización en tecnologías para basalto. INIA Tacuarembó, 3-4 diciembre 1998. Montevideo (Uruguay): INIA, 1998. p. 43-51 (INIA Serie Técnica ; 102) INIA TacuarembóTipo: Capítulo en Libro Técnico-Científico |
Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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9. | | REAL, D.; REYNO, R. Mejoramiento genético de leguminosas forrajeras para áreas extensivas Revista INIA, 2006, no. 9, p. 24-25 Agradecimientos: Los autores agradecen a los Téc. Agrop. Mauro Zarza, Rúben Mérola y Ana Viana por su fundamental trabajo en el desarrollo de este proyecto, a los técnicos de INIA Marco Dalla Rizza y Nora Altier, a los técnicos del...Tipo: Artículos en Revistas Agropecuarias |
Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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15. | | REYNO, R.; DO CANTO, J.; REAL, D. Germplasm evaluation and frost tolerance improvement of Setaria sphacelata in Uruguay. In: Michalk, D.L; Millar, G.D.; Badgery, W.B.; Broadfoot, K.M.; eds. International Grassland Congress, 22., 15-19 September, Sydney (AT), 2013. Proceedings. Revitalising grasslands to sustain our communities 153-154Tipo: Trabajos en Congresos/Conferencias |
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20. | | DALLA RIZZA, M.; REAL, D.; REYNO, R.; QUESENBERRY, K Breeding system of the aerial flowers in an amphicarpic clover species: Trifolium polymorphum Crop Science, 2007, v.: 47, no. 4, p. 1401 - 1406. Article history: Received: Nov 24, 2006 // Published: July, 2007.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
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