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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
21/02/2014 |
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Actualizado : |
31/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DIAZ-LAGO, J.E.; STUTHMAN, D.D.; ABADIE, T.E |
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Afiliación : |
JUAN ENRIQUE DIAZ LAGO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DEON D. STUTHMAN, Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, USA.; TABARÉ E. ABADIE, Facultad de Agronomía, UDELAR. |
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Título : |
Recurrent selection for partial resistance to crown rust in oat. |
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Fecha de publicación : |
2002 |
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Fuente / Imprenta : |
Crop Science, September 2002, Volume 42, Issue 5, Pages 1475-1482. |
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DOI : |
10.2135/cropsci2002.1475 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: Aug 10, 2001 / Published: Sept, 2002. |
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Contenido : |
Abstract:
Crown rust (caused by the fungus Puccinia coronata Cda. f. sp. avenae Eriks.) is a major disease of cultivated oat (Avena sativa L.). Partial resistance is a form of incomplete resistance characterized by a reduced rate of epidemic development and is potentially more durable than complete race-specific resistance. Four rapid cycles of selection for partial crown rust resistance were conducted in an oat recurrent selection population after the completion of the seventh cycle of selection for grain yield. The objectives of this research were to: (i) determine the effectiveness of rapid cycle recurrent selection for partial crown rust resistance; (ii) assess the indirect effect on grain yield, flowering date, and plant height; and (iii) estimate phenotypic and genetic correlations between traits and broad-sense heritabilities. Recurrent selection parents and check cultivars were evaluated in six environments. Four cycles of selection for partial resistance reduced the area under the disease progress curve (AUDPC) 42%. This increased resistance was not reflected in higher grain yields under moderate crown rust epidemics, but it produced a 4.7% grain yield gain per cycle in an environment with a severe rust infection. Selection for partial resistance indirectly delayed the flowering date by 2 d. Entry mean broad-sense herltability estimates were intermediate (41-64%) for AUDPC. Our results show the usefulness of rapid cycle recurrent selection as a population improvement procedure capable of effectively increasing the level of partial resistance to crown rust in a high-yielding oat population. MenosAbstract:
Crown rust (caused by the fungus Puccinia coronata Cda. f. sp. avenae Eriks.) is a major disease of cultivated oat (Avena sativa L.). Partial resistance is a form of incomplete resistance characterized by a reduced rate of epidemic development and is potentially more durable than complete race-specific resistance. Four rapid cycles of selection for partial crown rust resistance were conducted in an oat recurrent selection population after the completion of the seventh cycle of selection for grain yield. The objectives of this research were to: (i) determine the effectiveness of rapid cycle recurrent selection for partial crown rust resistance; (ii) assess the indirect effect on grain yield, flowering date, and plant height; and (iii) estimate phenotypic and genetic correlations between traits and broad-sense heritabilities. Recurrent selection parents and check cultivars were evaluated in six environments. Four cycles of selection for partial resistance reduced the area under the disease progress curve (AUDPC) 42%. This increased resistance was not reflected in higher grain yields under moderate crown rust epidemics, but it produced a 4.7% grain yield gain per cycle in an environment with a severe rust infection. Selection for partial resistance indirectly delayed the flowering date by 2 d. Entry mean broad-sense herltability estimates were intermediate (41-64%) for AUDPC. Our results show the usefulness of rapid cycle recurrent selection as a population improvemen... Presentar Todo |
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Palabras claves : |
CROWN RUST; PUCCINIA CORONATA; ROYA DE LA CORONA; RUST DISEASE. |
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Thesagro : |
AVENA; AVENA SATIVA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02365naa a2200241 a 4500
001 1048016
005 2019-10-31
008 2002 bl uuuu u00u1 u #d
024 7 $a10.2135/cropsci2002.1475$2DOI
100 1 $aDIAZ-LAGO, J.E.
245 $aRecurrent selection for partial resistance to crown rust in oat.$h[electronic resource]
260 $c2002
500 $aArticle history: Received: Aug 10, 2001 / Published: Sept, 2002.
520 $aAbstract: Crown rust (caused by the fungus Puccinia coronata Cda. f. sp. avenae Eriks.) is a major disease of cultivated oat (Avena sativa L.). Partial resistance is a form of incomplete resistance characterized by a reduced rate of epidemic development and is potentially more durable than complete race-specific resistance. Four rapid cycles of selection for partial crown rust resistance were conducted in an oat recurrent selection population after the completion of the seventh cycle of selection for grain yield. The objectives of this research were to: (i) determine the effectiveness of rapid cycle recurrent selection for partial crown rust resistance; (ii) assess the indirect effect on grain yield, flowering date, and plant height; and (iii) estimate phenotypic and genetic correlations between traits and broad-sense heritabilities. Recurrent selection parents and check cultivars were evaluated in six environments. Four cycles of selection for partial resistance reduced the area under the disease progress curve (AUDPC) 42%. This increased resistance was not reflected in higher grain yields under moderate crown rust epidemics, but it produced a 4.7% grain yield gain per cycle in an environment with a severe rust infection. Selection for partial resistance indirectly delayed the flowering date by 2 d. Entry mean broad-sense herltability estimates were intermediate (41-64%) for AUDPC. Our results show the usefulness of rapid cycle recurrent selection as a population improvement procedure capable of effectively increasing the level of partial resistance to crown rust in a high-yielding oat population.
650 $aAVENA
650 $aAVENA SATIVA
653 $aCROWN RUST
653 $aPUCCINIA CORONATA
653 $aROYA DE LA CORONA
653 $aRUST DISEASE
700 1 $aSTUTHMAN, D.D.
700 1 $aABADIE, T.E
773 $tCrop Science, September 2002, Volume 42, Issue 5, Pages 1475-1482.
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| 12. |  | DÍAZ DE ACKERMANN, M.; KOHLI, M.M.; CERETTA, S.; ABADIE, T.; IBAÑEZ, W. Importancia de las enfermedades en la producción del trigo en Uruguay. In: EXPLORANDO ALTOS RENDIMIENTOS DE TRIGO, 1997, LA ESTANZUELA, COLONIA, UY. [Taller]. [Montevido, UY]: CIMMYT-INIA, 1997. p. 261-278.| Tipo: Presentaciones Orales |
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| 14. | | DIAZ, R.; CORSI, W.; RIOS, A.; ZERBINO, M.S.; PEREA, C.; DÍAZ, M.; VERGES, R.; GERMAN, S.; ABADIE, T.; TROCHE, L. Reseña de la producción e investigación de trigo en el Uruguay. Colonia (Uruguay): CIAAB, 1982. 13 p. (CIAAB Miscelánea ; 44) Informe presentado en la Reunión de Coordinadores Nacionales del Proyecto Trigo del Convenio IIC Cono Sur/BID en La Estanzuela, del 11 al 13 de Agosto de 1981.| Biblioteca(s): INIA La Estanzuela. |
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| 17. | | Germán, S.; Abadie, T.; Pacheco, M.J.; Cabrera, N.; Pereira, J.; Troche, L.; Calistro, J.; Long, C. Cultivares de trigo ln: Jornada Cultivos de Invierno, 1987 abr 28 : La Estanzuela [Memorias]. Montevideo (Uruguay): CIAAB, 1987. p1-11 (sic) Jornada Cultivos de Invierno (CIAAB)| Biblioteca(s): INIA La Estanzuela. |
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| 19. | | German, S.; Abadie, T.; Troche, L. Cultivares de trigo ln: Dia de Campo Cultivos de Invierno, 1985 nov 20 : La Estanzuela [Memorias]. Montevideo (Uruguay): CIAAB, 1985. p2-7 (sic) Dia de Campo Cultivos de Invierno (CIAAB)| Biblioteca(s): INIA La Estanzuela. |
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