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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
12/09/2014 |
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Actualizado : |
11/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
STEWART, S.; ROBERTSON, A.E. |
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Afiliación : |
SILVINA MARIA STEWART SONEIRA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
A modified method to screen for partial resistance to Phytophthora sojae in soybean. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Crop Science, v. 52, n. 3, p. 1181-1186, 2012. |
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ISSN : |
1435-0653 |
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DOI : |
10.2135/cropsci2011.05.0241 |
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Idioma : |
Inglés |
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Contenido : |
Abstract: Phytophthora root and stem rot, caused by Phytophthora sojae Kauf and Gerd, is one of the most damaging diseases of soybean
[Glycine max (L.) Merr.] in the United States. Partial resistance (PR), which is defined as the relative ability of a soybean plant to survive root
infection without showing severe symptoms, is an effective way to manage this disease. A modification of the layer test method used
to screen for PR to P. sojae in soybean was evaluated. Instead of the P. sojae-colonized agar layer, which is used in the current greenhouse
cup assay, P. sojae-infested rice (Oryza sativa L.) grains were used. In addition, a dry root weight (Drw) measurement was compared to
a disease severity root rot score, which uses a 1 to 10 visual scale. The rice method was not statistically different from the layer test for the
variables evaluated. Advantages of the rice method include reduced cost and the ability to screen soybean germplasm with more than
one pathotype of the pathogen in a single assay. A mixture of several pathotypes of P. sojae ensures compatible interactions between
isolates used and all known Rps genes, thus avoiding Rps genes that could go undetected and mask PR during screening. Although
collecting and handling of roots for Drw data may require more time, it is a more objective variable, which assures precise scoring, it is not
rater dependent, and less training of personnel is required. |
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Palabras claves : |
PARTIAL RESISTANCE; PHYTOPHTHORA SOJAE. |
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Thesagro : |
FITOPATOLOGÍA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02013naa a2200193 a 4500
001 1050207
005 2019-11-11
008 2012 bl uuuu u00u1 u #d
022 $a1435-0653
024 7 $a10.2135/cropsci2011.05.0241$2DOI
100 1 $aSTEWART, S.
245 $aA modified method to screen for partial resistance to Phytophthora sojae in soybean.$h[electronic resource]
260 $c2012
520 $aAbstract: Phytophthora root and stem rot, caused by Phytophthora sojae Kauf and Gerd, is one of the most damaging diseases of soybean [Glycine max (L.) Merr.] in the United States. Partial resistance (PR), which is defined as the relative ability of a soybean plant to survive root infection without showing severe symptoms, is an effective way to manage this disease. A modification of the layer test method used to screen for PR to P. sojae in soybean was evaluated. Instead of the P. sojae-colonized agar layer, which is used in the current greenhouse cup assay, P. sojae-infested rice (Oryza sativa L.) grains were used. In addition, a dry root weight (Drw) measurement was compared to a disease severity root rot score, which uses a 1 to 10 visual scale. The rice method was not statistically different from the layer test for the variables evaluated. Advantages of the rice method include reduced cost and the ability to screen soybean germplasm with more than one pathotype of the pathogen in a single assay. A mixture of several pathotypes of P. sojae ensures compatible interactions between isolates used and all known Rps genes, thus avoiding Rps genes that could go undetected and mask PR during screening. Although collecting and handling of roots for Drw data may require more time, it is a more objective variable, which assures precise scoring, it is not rater dependent, and less training of personnel is required.
650 $aFITOPATOLOGÍA
653 $aPARTIAL RESISTANCE
653 $aPHYTOPHTHORA SOJAE
700 1 $aROBERTSON, A.E.
773 $tCrop Science$gv. 52, n. 3, p. 1181-1186, 2012.
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INIA La Estanzuela (LE) |
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| Registros recuperados : 4 | |
| 2. |  | STEWART, S.; ABEYSEKARA, N.; ROBERTSON, A.E. Pathotype and genetic shifts in a population of Phytophthora sojae under cultivar rotation. Plant Disease, Mayo 2014, v. 98, n. 5, p. 614-624. In: OOMYCETE MOLECULAR GENETIC NETWORK MEETING, 14., 2013 Pacific Grove, CA, US. Poster presentations. [s.l.]: OMGN, 2013.
Accepted for publication 16 November 2013.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : A - 1 |
| Biblioteca(s): INIA La Estanzuela. |
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| 3. | | STEWART, S.; ABEYSEKARA, N.; ROBERTSON, A.E. Pathotype and genetic shifts in a population of Phytophthora sojae under soybean cultivar rotation. Plant Disease, 2014, v.98, no.5, p. 614-624. In: OOMYCETE MOLECULAR GENETIC NETWORK MEETING, 14., 2013 Pacific Grove, CA, US. Poster presentations. [s.l.]: OMGN, 2013| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : A - 1 |
| Biblioteca(s): INIA Las Brujas. |
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| Registros recuperados : 4 | |
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