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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
15/03/2016 |
Actualizado : |
17/03/2016 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
SALDAIN, N.E.; PÉREZ DE VIDA, F.; BLANCO, P.H.; CAPDEVIELLE, F.; LAVECCHIA, A.; BONNECARRERE, V.; BERMÚDEZ, R.; MENDEZ, J.; ORTÍZ, A.; ZAMBRANO, C.; RAMIS, C.; LAZO, J.V.; CÁSARES, M.; GHNEIM, T.; ANZALONE, A.; LENTINI, Z.; AVILA, L.A.; MEROTTO, A.; PÍRIZ, M.; LEAL, A. |
Afiliación : |
NÉSTOR ELIO SALDAIN CROCCE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PEDRO HORACIO BLANCO BARRAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FABIAN MARCEL CAPDEVIELLE SOSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRES PASCUAL LAVECCHIA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RAÚL ENRIQUE BERMÚDEZ COQUARD, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO HECTOR MENDEZ LONGO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Environmental impact of the adoption of Imidazolinone-resistant rice in contrasting production systems in Latin America. [Poster]. |
Fecha de publicación : |
2007 |
Fuente / Imprenta : |
In: Proceedings of the Temperate Rice Conference, 4, 2007, Novara, Italy. Ed. Bocchi, A., Ferrero, A., Porro, A., 2007, Novara: SIRFI. |
Páginas : |
p. 224-225. |
ISBN : |
978-88-95616-01-8 |
Idioma : |
Inglés |
Palabras claves : |
TECNOLOGIA CLEARFIELD. |
Thesagro : |
ARROZ; ARROZ ROJO; IMIDAZOLINONAS; RESISTENCIA A HERBICIDAS. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5547/1/Proceedings-4Temp.Conf.2007p.224-225SALDAIN.pdf
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Marc : |
LEADER 01223nam a2200409 a 4500 001 1054445 005 2016-03-17 008 2007 bl uuuu u00u1 u #d 020 $a978-88-95616-01-8 100 1 $aSALDAIN, N.E. 245 $aEnvironmental impact of the adoption of Imidazolinone-resistant rice in contrasting production systems in Latin America. [Poster]. 260 $aIn: Proceedings of the Temperate Rice Conference, 4, 2007, Novara, Italy. Ed. Bocchi, A., Ferrero, A., Porro, A., 2007, Novara: SIRFI.$c2007 300 $ap. 224-225. 650 $aARROZ 650 $aARROZ ROJO 650 $aIMIDAZOLINONAS 650 $aRESISTENCIA A HERBICIDAS 653 $aTECNOLOGIA CLEARFIELD 700 1 $aPÉREZ DE VIDA, F. 700 1 $aBLANCO, P.H. 700 1 $aCAPDEVIELLE, F. 700 1 $aLAVECCHIA, A. 700 1 $aBONNECARRERE, V. 700 1 $aBERMÚDEZ, R. 700 1 $aMENDEZ, J. 700 1 $aORTÍZ, A. 700 1 $aZAMBRANO, C. 700 1 $aRAMIS, C. 700 1 $aLAZO, J.V. 700 1 $aCÁSARES, M. 700 1 $aGHNEIM, T. 700 1 $aANZALONE, A. 700 1 $aLENTINI, Z. 700 1 $aAVILA, L.A. 700 1 $aMEROTTO, A. 700 1 $aPÍRIZ, M. 700 1 $aLEAL, A.
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Registro original : |
INIA Treinta y Tres (TT) |
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
21/02/2014 |
Actualizado : |
11/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
A - 2 |
Autor : |
PÉREZ DE VIDA, F.; LACA, E.A.; MACKILL, D.J.; FERNÁNDEZ, G.; FISCHER, A.J. |
Afiliación : |
FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Relating rice traits to weed competitiveness an yield: a path analysis. |
Fecha de publicación : |
2006 |
Fuente / Imprenta : |
Weed Science, 2006, v.54, p. 1122-1131 |
DOI : |
10.1614/WS-06-042R.1 |
Idioma : |
Inglés |
Notas : |
Article history: Received March 6, 2006 // approved August 10, 2006. Published Dec. 2006.
DOI: https://doi.org/10.1614/WS-06-042R.1 |
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 |
Thesagro : |
ARROZ; CULTIVOS; ECHINOCHLOA PHYLLOPOGON; ESCARDA; MALEZAS. |
Asunto categoría : |
H60 Malezas y escardas |
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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