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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
21/02/2014 |
Actualizado : |
06/07/2021 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
REBUFFO, M.; CONSORTIUM LOTASSA; CONSORTIUM LESIS. |
Afiliación : |
MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Breeding temperate legumes: advances and challenges. |
Fecha de publicación : |
2007 |
Fuente / Imprenta : |
Lotus Newsletter, 2007, Volume 37, Issue 3, pages 105. |
ISSN : |
1510-7809 |
Idioma : |
Inglés |
Contenido : |
Abstract: Conventional breeding is an efficient tool with factors with low environmental effect, where the phenotype expression is closer to the genotype. On the other hand, selection for abiotic stresses involves complex characteristics restricting progress of conventional breeding
programs. The study of the responses of several perennial legumes to selection for water and saline stress, Al tolerance and P availability is developed in the frame of the Projects LOTASSA (FP6-2003-INCO-DEV2 PL-517617) and LESIS (FTG-787/2005). Their
approach involves the characterization and selection of naturalized populations for the identification of superior germplasm, as well as their metabolic and molecular analysis in order to develop strategies that could spead conventional breeding in the future. The
presentation describes the approach and first results. The physiological responses of the main cultivated species to Al, saline and water stress are evaluated. Divergent selection is carried out in Lotus corniculatus (Lc) and diploid L. uliginosus (=L. pedunculatus) (Lu) for
tolerance to water stress and Al tolerance, and the development of contrasting populations for root characteristics (root branching and density), the characterization of natural populations of L. glaber (=L. tenuis), Trifolium repens (Tr) and T. pratense (Tp) for water stress, L. glaber for saline stress. Chilean and Uruguayan naturalized populations of Lc, Tr and Tp are evaluated for water stress and prevailing diseases. Results show that there is genetic variability within the Lc, Lu and Lg germplasm for Al tolerance, water and saline stress, respectively, to be used in the selection process. Lc ultivar San Gabriel (Uruguay) was more sensitive to Al toxicity than Brasilian germplasm; the membrane potential in root cortex cells remains unchanged between pH 4.4 and 6 for the most tolerant Brasilian selections. Although saline stress stunted foliar and root growth, the evaluation at young stages (40 days) showed Lg entries collected in saline soils of Buenos Aires Province (Argentine) that produced 50% more forage than less adapted germplasm. There are differential responses of Chilean Lg accessions to water stress in leaf rate appearance, stem elongation and stem dry weight. Water stress (40% field capacity) was imposed for six months to Lc cultivar San Gabriel and INIA Draco. Contrasting phenotypes were identified through regrowth production (2.15 and 4.13 g/plant of fresh weight for sensitive and tolerant selections, respectively). Differences between sensitive and tolerant selections were larger for Lu (2.96 and 7.72 g FW/plant). Proline is one of the metabolite that shows high consistency with the response to water stress in several species of Lotus as well as in Tp. The
isotopic discrimination (?13C/12C) has a good correlation with water use efficiency for the cultivated Lotus species. MenosAbstract: Conventional breeding is an efficient tool with factors with low environmental effect, where the phenotype expression is closer to the genotype. On the other hand, selection for abiotic stresses involves complex characteristics restricting progress of conventional breeding
programs. The study of the responses of several perennial legumes to selection for water and saline stress, Al tolerance and P availability is developed in the frame of the Projects LOTASSA (FP6-2003-INCO-DEV2 PL-517617) and LESIS (FTG-787/2005). Their
approach involves the characterization and selection of naturalized populations for the identification of superior germplasm, as well as their metabolic and molecular analysis in order to develop strategies that could spead conventional breeding in the future. The
presentation describes the approach and first results. The physiological responses of the main cultivated species to Al, saline and water stress are evaluated. Divergent selection is carried out in Lotus corniculatus (Lc) and diploid L. uliginosus (=L. pedunculatus) (Lu) for
tolerance to water stress and Al tolerance, and the development of contrasting populations for root characteristics (root branching and density), the characterization of natural populations of L. glaber (=L. tenuis), Trifolium repens (Tr) and T. pratense (Tp) for water stress, L. glaber for saline stress. Chilean and Uruguayan naturalized populations of Lc, Tr and Tp are evaluated for water stress and prevailing d... Presentar Todo |
Thesagro : |
LEGUMINOSA FORRAJERA; MEJORAMIENTO DE PASTURAS. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15795/1/Lotus-Newsletter-2007-Volume-37-3-105.pdf
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Marc : |
LEADER 03413nam a2200169 a 4500 001 1034453 005 2021-07-06 008 2007 bl uuuu u01u1 u #d 022 $a1510-7809 100 1 $aREBUFFO, M. 245 $aBreeding temperate legumes$badvances and challenges.$h[electronic resource] 260 $aLotus Newsletter, 2007, Volume 37, Issue 3, pages 105.$c2007 520 $aAbstract: Conventional breeding is an efficient tool with factors with low environmental effect, where the phenotype expression is closer to the genotype. On the other hand, selection for abiotic stresses involves complex characteristics restricting progress of conventional breeding programs. The study of the responses of several perennial legumes to selection for water and saline stress, Al tolerance and P availability is developed in the frame of the Projects LOTASSA (FP6-2003-INCO-DEV2 PL-517617) and LESIS (FTG-787/2005). Their approach involves the characterization and selection of naturalized populations for the identification of superior germplasm, as well as their metabolic and molecular analysis in order to develop strategies that could spead conventional breeding in the future. The presentation describes the approach and first results. The physiological responses of the main cultivated species to Al, saline and water stress are evaluated. Divergent selection is carried out in Lotus corniculatus (Lc) and diploid L. uliginosus (=L. pedunculatus) (Lu) for tolerance to water stress and Al tolerance, and the development of contrasting populations for root characteristics (root branching and density), the characterization of natural populations of L. glaber (=L. tenuis), Trifolium repens (Tr) and T. pratense (Tp) for water stress, L. glaber for saline stress. Chilean and Uruguayan naturalized populations of Lc, Tr and Tp are evaluated for water stress and prevailing diseases. Results show that there is genetic variability within the Lc, Lu and Lg germplasm for Al tolerance, water and saline stress, respectively, to be used in the selection process. Lc ultivar San Gabriel (Uruguay) was more sensitive to Al toxicity than Brasilian germplasm; the membrane potential in root cortex cells remains unchanged between pH 4.4 and 6 for the most tolerant Brasilian selections. Although saline stress stunted foliar and root growth, the evaluation at young stages (40 days) showed Lg entries collected in saline soils of Buenos Aires Province (Argentine) that produced 50% more forage than less adapted germplasm. There are differential responses of Chilean Lg accessions to water stress in leaf rate appearance, stem elongation and stem dry weight. Water stress (40% field capacity) was imposed for six months to Lc cultivar San Gabriel and INIA Draco. Contrasting phenotypes were identified through regrowth production (2.15 and 4.13 g/plant of fresh weight for sensitive and tolerant selections, respectively). Differences between sensitive and tolerant selections were larger for Lu (2.96 and 7.72 g FW/plant). Proline is one of the metabolite that shows high consistency with the response to water stress in several species of Lotus as well as in Tp. The isotopic discrimination (?13C/12C) has a good correlation with water use efficiency for the cultivated Lotus species. 650 $aLEGUMINOSA FORRAJERA 650 $aMEJORAMIENTO DE PASTURAS 700 1 $aCONSORTIUM LOTASSA 700 1 $aCONSORTIUM LESIS.
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INIA La Estanzuela (LE) |
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
18/04/2024 |
Actualizado : |
25/04/2024 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
NEUMANN, J.; RODRIGUEZ, P.; MONTALDO, P.; CABRERA, D.; DINI, M. |
Afiliación : |
JUAN NEUMANN, Universidad de la Empresa, Facultad de Ciencias Agrarias, Montevideo, Uruguay; PABLO ANDRES RODRIGUEZ BRUNO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO MONTALDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS DANILO CABRERA BOLOGNA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MAXIMILIANO ANTONIO DINI VIÑOLY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Caracterización fenotípica del jardín de introducción de "arazá" de INIA Las Brujas. [Poster]. |
Complemento del título : |
Sesión de Pósteres. |
Fecha de publicación : |
2024 |
Fuente / Imprenta : |
In: Dini, M.; Speroni, G. (Eds.). Encuentro Nacional sobre Frutos Nativos, 11°. Universidad Tecnológica (UTEC), Durazno, Uruguay, 4 y 5 abril 2024, Libro de resúmenes. Canelones (UY): INIA, 2024. p.30. |
Serie : |
(Serie Actividades de Difusión; 804) |
ISSN : |
1688-9258 |
Idioma : |
Español |
Notas : |
Agradecimientos: Instituto Nacional de Investigación Agropecuaria, Proyecto FR_25 "Mejoramiento genético en fruticultura para una producción saludable y sustentable". |
Contenido : |
El "arazá" (Psidium cattleyanum) es una especie perteneciente al grupo de las mirtáceas (Myrtaceae) y una de las especies que integran el grupo de los frutales nativos del Uruguay. Desde el año 2000, Fagro - Udelar, INIA y DGF - MGAP, comenzaron trabajos de prospección, evaluación y selección de frutales nativos en los que se encontraba comprendido el "arazá". Uno de los resultados fue la conformación del jardín de introducción ubicado en el INIA las Brujas. |
Palabras claves : |
Calidad de fruta; Producción; Psidium cattleyanum; Selección fenotípica; SISTEMA VEGETAL INTENSIVO - INIA. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17633/1/SAD804-Frutos-Nativos-Ps4.pdf
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Marc : |
LEADER 01568nam a2200253 a 4500 001 1064608 005 2024-04-25 008 2024 bl uuuu u01u1 u #d 022 $a1688-9258 100 1 $aNEUMANN, J. 245 $aCaracterización fenotípica del jardín de introducción de "arazá" de INIA Las Brujas. [Poster].$h[electronic resource] 260 $aIn: Dini, M.; Speroni, G. (Eds.). Encuentro Nacional sobre Frutos Nativos, 11°. Universidad Tecnológica (UTEC), Durazno, Uruguay, 4 y 5 abril 2024, Libro de resúmenes. Canelones (UY): INIA, 2024. p.30.$c2024 490 $a(Serie Actividades de Difusión; 804) 500 $aAgradecimientos: Instituto Nacional de Investigación Agropecuaria, Proyecto FR_25 "Mejoramiento genético en fruticultura para una producción saludable y sustentable". 520 $aEl "arazá" (Psidium cattleyanum) es una especie perteneciente al grupo de las mirtáceas (Myrtaceae) y una de las especies que integran el grupo de los frutales nativos del Uruguay. Desde el año 2000, Fagro - Udelar, INIA y DGF - MGAP, comenzaron trabajos de prospección, evaluación y selección de frutales nativos en los que se encontraba comprendido el "arazá". Uno de los resultados fue la conformación del jardín de introducción ubicado en el INIA las Brujas. 653 $aCalidad de fruta 653 $aProducción 653 $aPsidium cattleyanum 653 $aSelección fenotípica 653 $aSISTEMA VEGETAL INTENSIVO - INIA 700 1 $aRODRIGUEZ, P. 700 1 $aMONTALDO, P. 700 1 $aCABRERA, D. 700 1 $aDINI, M.
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