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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
21/02/2014 |
Actualizado : |
31/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
DIAZ-LAGO, J.E.; STUTHMAN, D.D.; ABADIE, T.E |
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. |
Título : |
Recurrent selection for partial resistance to crown rust in oat. |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
Crop Science, September 2002, Volume 42, Issue 5, Pages 1475-1482. |
DOI : |
10.2135/cropsci2002.1475 |
Idioma : |
Inglés |
Notas : |
Article history: Received: Aug 10, 2001 / Published: Sept, 2002. |
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 |
Palabras claves : |
CROWN RUST; PUCCINIA CORONATA; ROYA DE LA CORONA; RUST DISEASE. |
Thesagro : |
AVENA; AVENA SATIVA. |
Asunto categoría : |
H20 Enfermedades de las plantas |
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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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
03/08/2016 |
Actualizado : |
29/10/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
RESTAINO, E.; VERGES, R.; DIAZ, J.; VAZQUEZ, D. |
Afiliación : |
ERNESTO ANGEL RESTAINO GALUP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RUBEN PIERRE VERGES DELGADO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN ENRIQUE DIAZ LAGO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL VAZQUEZ PEYRONEL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Variedades INIA de trigo y cebada: la calidad en un preciado envase. |
Fecha de publicación : |
2007 |
Fuente / Imprenta : |
Suplemento Tecnológico INIA, 2007, p. 18-19. |
Idioma : |
Español |
Thesagro : |
CEBADA; TRIGO; URUGUAY. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5752/1/Suplemento-tecnologico-2007.pdf
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Marc : |
LEADER 00476nam a2200169 a 4500 001 1055156 005 2019-10-29 008 2007 bl uuuu u0uu1 u #d 100 1 $aRESTAINO, E. 245 $aVariedades INIA de trigo y cebada$bla calidad en un preciado envase.$h[electronic resource] 260 $aSuplemento Tecnológico INIA, 2007, p. 18-19.$c2007 650 $aCEBADA 650 $aTRIGO 650 $aURUGUAY 700 1 $aVERGES, R. 700 1 $aDIAZ, J. 700 1 $aVAZQUEZ, D.
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