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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
21/02/2014 |
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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 : |
PÉREZ DE VIDA, F.; LACA, E.A.; MACKILL, D.J.; FERNÁNDEZ, G.; FISCHER, A.J. |
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Afiliación : |
FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Relating rice traits to weed competitiveness an yield: a path analysis. |
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Fecha de publicación : |
2006 |
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Fuente / Imprenta : |
Weed Science, 2006, v.54, p. 1122-1131 |
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DOI : |
10.1614/WS-06-042R.1 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received March 6, 2006 // approved August 10, 2006. Published Dec. 2006.
DOI: https://doi.org/10.1614/WS-06-042R.1 |
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Contenido : |
Abstract:
Resistance to herbicides in the most important weeds threatens the sustainability of California rice. Weed-competitive rice cultivars could be a low-cost and safe nonchemical addition to an integrated weed management program. Trade-offs between competitiveness and productivity and inconsistent trait expression under weedy and weed-free conditions could complicate the breeding of competitive rice cultivars. A 2-year competition experiment was conducted in the greenhouse involving eight rice cultivars and two weed competition regimes (presence or absence of late watergrass) to examine the effects of rice weed-suppressive ability and tolerance to weed competition (weed tolerance) on rice yield. Competition reduced average rice yield from 32 to 48%, and watergrass biomass from 44 to 77%. Path analysis suggested that enhancing rice weed-suppressive ability and weed tolerance while minimizing possible productivity trade-offs should promote early (12 d after seeding) growth and light-capture traits followed by moderate growth rates before heading and a vigorous grain filling period. Crop growth rate (CGR) after heading was a relevant determinant of yield (direct path: 0.82, P < 0.01) and correlated (r = 0.30, P < 0.01) with weed tolerance. Late biomass accumulation was negatively correlated with harvest index and CGR during ripening (r = ?0.46, P < 0.01); thus, late-season competitiveness can lower productivity. Rice traits conferring competitiveness were correlated across weed competition regimes (r = 0.36–0.81, P < 0.01). However, significant cultivar-by-competition and cultivar-by-year interactions suggest that selection efficiency would be greater when traits are identified under competition and in different environments. This study relates to the phenotypic expression of traits for competitiveness. Breeding competitive cultivars will require additional knowledge on trait heritability, genetic correlations with competitiveness, and on the effects of the environment upon gene expression. MenosAbstract:
Resistance to herbicides in the most important weeds threatens the sustainability of California rice. Weed-competitive rice cultivars could be a low-cost and safe nonchemical addition to an integrated weed management program. Trade-offs between competitiveness and productivity and inconsistent trait expression under weedy and weed-free conditions could complicate the breeding of competitive rice cultivars. A 2-year competition experiment was conducted in the greenhouse involving eight rice cultivars and two weed competition regimes (presence or absence of late watergrass) to examine the effects of rice weed-suppressive ability and tolerance to weed competition (weed tolerance) on rice yield. Competition reduced average rice yield from 32 to 48%, and watergrass biomass from 44 to 77%. Path analysis suggested that enhancing rice weed-suppressive ability and weed tolerance while minimizing possible productivity trade-offs should promote early (12 d after seeding) growth and light-capture traits followed by moderate growth rates before heading and a vigorous grain filling period. Crop growth rate (CGR) after heading was a relevant determinant of yield (direct path: 0.82, P < 0.01) and correlated (r = 0.30, P < 0.01) with weed tolerance. Late biomass accumulation was negatively correlated with harvest index and CGR during ripening (r = ?0.46, P < 0.01); thus, late-season competitiveness can lower productivity. Rice traits conferring competitiveness were correlated acros... Presentar Todo |
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Thesagro : |
ARROZ; CULTIVOS; ECHINOCHLOA PHYLLOPOGON; ESCARDA; MALEZAS. |
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Asunto categoría : |
H60 Malezas y escardas |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5240/1/Perez-arb-2006-1.pdf
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Marc : |
LEADER 02811naa a2200253 a 4500
001 1032834
005 2019-10-11
008 2006 bl uuuu u00u1 u #d
024 7 $a10.1614/WS-06-042R.1$2DOI
100 1 $aPÉREZ DE VIDA, F.
245 $aRelating rice traits to weed competitiveness an yield$ba path analysis.
260 $c2006
500 $aArticle history: Received March 6, 2006 // approved August 10, 2006. Published Dec. 2006. DOI: https://doi.org/10.1614/WS-06-042R.1
520 $aAbstract: Resistance to herbicides in the most important weeds threatens the sustainability of California rice. Weed-competitive rice cultivars could be a low-cost and safe nonchemical addition to an integrated weed management program. Trade-offs between competitiveness and productivity and inconsistent trait expression under weedy and weed-free conditions could complicate the breeding of competitive rice cultivars. A 2-year competition experiment was conducted in the greenhouse involving eight rice cultivars and two weed competition regimes (presence or absence of late watergrass) to examine the effects of rice weed-suppressive ability and tolerance to weed competition (weed tolerance) on rice yield. Competition reduced average rice yield from 32 to 48%, and watergrass biomass from 44 to 77%. Path analysis suggested that enhancing rice weed-suppressive ability and weed tolerance while minimizing possible productivity trade-offs should promote early (12 d after seeding) growth and light-capture traits followed by moderate growth rates before heading and a vigorous grain filling period. Crop growth rate (CGR) after heading was a relevant determinant of yield (direct path: 0.82, P < 0.01) and correlated (r = 0.30, P < 0.01) with weed tolerance. Late biomass accumulation was negatively correlated with harvest index and CGR during ripening (r = ?0.46, P < 0.01); thus, late-season competitiveness can lower productivity. Rice traits conferring competitiveness were correlated across weed competition regimes (r = 0.36–0.81, P < 0.01). However, significant cultivar-by-competition and cultivar-by-year interactions suggest that selection efficiency would be greater when traits are identified under competition and in different environments. This study relates to the phenotypic expression of traits for competitiveness. Breeding competitive cultivars will require additional knowledge on trait heritability, genetic correlations with competitiveness, and on the effects of the environment upon gene expression.
650 $aARROZ
650 $aCULTIVOS
650 $aECHINOCHLOA PHYLLOPOGON
650 $aESCARDA
650 $aMALEZAS
700 1 $aLACA, E.A.
700 1 $aMACKILL, D.J.
700 1 $aFERNÁNDEZ, G.
700 1 $aFISCHER, A.J.
773 $tWeed Science, 2006$gv.54, p. 1122-1131
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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
27/06/2023 |
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Actualizado : |
27/06/2023 |
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Tipo de producción científica : |
Boletín de Divulgación |
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Autor : |
ZOPPOLO, R.; VILLAMIL, J.J.; LEONI, C.; IBÁÑEZ, F.; FASIOLO, C.; TRUJILLO, M.; RODRÍGUEZ, I.; CONDE, P. (Ed.). |
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Afiliación : |
ROBERTO JOSE ZOPPOLO GOLDSCHMIDT, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN JOSE VILLAMIL SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA LEONI VELAZCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FACUNDO IBÁÑEZ SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDREA CAROLINA FASIOLO FERREIRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONICA JACQUELIN TRUJILLO SOUZA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IRVIN RODRÍGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANA PAULA CONDE INNAMORATO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Catálogo de cultivares de nogal Pecán (Carya illinoinensis (Wangenh.) K. Koch) evaluados en INIA - Uruguay. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Montevideo (UY): INIA, 2023. |
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Páginas : |
60 p. |
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Serie : |
(INIA Boletín de Divulgación; 120). |
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ISBN : |
978-9974-38-484-2; e-ISBN: 978-9974-38-483-5. |
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ISSN : |
1510-7396 |
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Idioma : |
Español |
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Notas : |
Colaboradores: David Bianchi, Cecilia Martínez, Richard Ashfield, Jonathan Dávila, Valentina Mujica, Maximiliano Dini, Rafael Grasso, Claudio García, Danilo Cabrera, Pablo Rodríguez, Georgina García Inza, Virginia Ferrari (INIA). -- Tesistas: Victoria Varela, Virginia Takata, Alejandra Pallante, Agustín Pérez Graña (Universidad de la República, Facultad de Agronomía, Uruguay), Guillermo Gil (Universidad de la República, Facultad de Química, Uruguay), Rudinei De Marco (Universidad Federal de Pelotas, Brasil). |
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Contenido : |
El Programa Nacional de Investigación en Producción Frutícola de INIA viene considerando desde el año 2007 el potencial de desarrollo del cultivo frutícola comercial del nogal americano o pecán. Dado el potencial identificado para este rubro en el país, y la falta de conocimiento sobre el manejo del cultivo y su comportamiento en nuestras condiciones, el primer paso para comenzar las investigaciones en pecán fue instalar un ensayo comparativo de cultivares. El presente catálogo busca presentar la información sobre el comportamiento agronómico de diferentes cultivares, incluyendo: el vigor de la planta; la entrada en producción y la productividad; la fenología; el comportamiento sanitario, considerando la susceptibilidad a sarna del pecán (Venturia effusa); y la calidad de la nuez. ----------
CONTENIDO: Especificaciones. -- Tabla comparativa de aptitud. -- Fenología. -- Rendimiento acumulado. -- Cultivares: Apache, Cape Fear, Desirable, Elliott, Gloria Grande, Kiowa, Mahan, Maramec, Nacono, Oconee, Pawnee, Shoshoni, Starking, Stuart, Success, Sumner. |
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Palabras claves : |
Proyecto FR 25. Mejoramiento genético de frutales; SISTEMA VEGETAL INTENSIVO - INIA. |
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Thesagro : |
CARYA ILLINOINENSIS; CULTIVARES; NOGAL; NUECES. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17241/1/Bd-120-2023.pdf
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Marc : |
LEADER 02508nam a2200313 a 4500
001 1064208
005 2023-06-27
008 2023 bl uuuu u00u1 u #d
022 $a1510-7396
100 1 $aZOPPOLO, R.
245 $aCatálogo de cultivares de nogal Pecán (Carya illinoinensis (Wangenh.) K. Koch) evaluados en INIA - Uruguay.$h[electronic resource]
260 $aMontevideo (UY): INIA$c2023
300 $a60 p.
490 $a(INIA Boletín de Divulgación; 120).
500 $aColaboradores: David Bianchi, Cecilia Martínez, Richard Ashfield, Jonathan Dávila, Valentina Mujica, Maximiliano Dini, Rafael Grasso, Claudio García, Danilo Cabrera, Pablo Rodríguez, Georgina García Inza, Virginia Ferrari (INIA). -- Tesistas: Victoria Varela, Virginia Takata, Alejandra Pallante, Agustín Pérez Graña (Universidad de la República, Facultad de Agronomía, Uruguay), Guillermo Gil (Universidad de la República, Facultad de Química, Uruguay), Rudinei De Marco (Universidad Federal de Pelotas, Brasil).
520 $aEl Programa Nacional de Investigación en Producción Frutícola de INIA viene considerando desde el año 2007 el potencial de desarrollo del cultivo frutícola comercial del nogal americano o pecán. Dado el potencial identificado para este rubro en el país, y la falta de conocimiento sobre el manejo del cultivo y su comportamiento en nuestras condiciones, el primer paso para comenzar las investigaciones en pecán fue instalar un ensayo comparativo de cultivares. El presente catálogo busca presentar la información sobre el comportamiento agronómico de diferentes cultivares, incluyendo: el vigor de la planta; la entrada en producción y la productividad; la fenología; el comportamiento sanitario, considerando la susceptibilidad a sarna del pecán (Venturia effusa); y la calidad de la nuez. ---------- CONTENIDO: Especificaciones. -- Tabla comparativa de aptitud. -- Fenología. -- Rendimiento acumulado. -- Cultivares: Apache, Cape Fear, Desirable, Elliott, Gloria Grande, Kiowa, Mahan, Maramec, Nacono, Oconee, Pawnee, Shoshoni, Starking, Stuart, Success, Sumner.
650 $aCARYA ILLINOINENSIS
650 $aCULTIVARES
650 $aNOGAL
650 $aNUECES
653 $aProyecto FR 25. Mejoramiento genético de frutales
653 $aSISTEMA VEGETAL INTENSIVO - INIA
700 1 $aVILLAMIL, J.J.
700 1 $aLEONI, C.
700 1 $aIBÁÑEZ, F.
700 1 $aFASIOLO, C.
700 1 $aTRUJILLO, M.
700 1 $aRODRÍGUEZ, I.
700 1 $aCONDE, P.
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