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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
24/08/2016 |
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Actualizado : |
08/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MARTÍNEZ, S. |
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Afiliación : |
SEBASTIÁN MARTÍNEZ KOPP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Effects of combined application of potassium phosphite and fungicide on stem and sheath disease control, yield, and quality of rice. |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
Crop Protection, 2016, v. 89, p. 259-264. |
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ISSN : |
0261-2194 |
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DOI : |
10.1016/j.cropro.2016.08.002 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 29 March 2016; received in revised form 26 July 2016; accepted 2 August 2016. |
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Contenido : |
Abstract:
Phosphite has been shown to suppress some diseases in different plant species but disease control in rice has not been investigated. In 2012/13 and 2013/14 potassium phosphite was sprayed at 1775 g ha1 and 3550 g ha1 in field plots of rice in Uruguay to determine if phosphite alone or in combination with label rates of a mixed strobilurin and triazole fungicide could be used to effectively control stem rot and aggregate sheath spot in irrigated rice. Six treatments consisting of different combinations of potassium phosphite alone or with a fungicide and an unsprayed control were assayed in one application at lateboot to early-heading. Phosphite alone in single and double rate slightly reduced severity and incidence of stem rot and produced a small yield increase over the unsprayed control. Fungicide at a 50% label rate with phosphite reduced stem rot severity and incidence to a similar level as the fungicide alone applied at the label rate. Disease severity was reduced by approximately 25% and incidence by 17e20% when compared with untreated control. Yield increase was 5% for both treatments over the unsprayed control. Fungicide combined with phosphite at single and double rates reduced stem rot severity by 40 e45% and incidence by 34e38% when compared with untreated control, with yield increased by 10% over the unsprayed control and 5% over plots treated with a fungicide. These results indicate that a single application of potassium phosphite combined with fungicide can be used efficiently to manage of rice stem diseases. MenosAbstract:
Phosphite has been shown to suppress some diseases in different plant species but disease control in rice has not been investigated. In 2012/13 and 2013/14 potassium phosphite was sprayed at 1775 g ha1 and 3550 g ha1 in field plots of rice in Uruguay to determine if phosphite alone or in combination with label rates of a mixed strobilurin and triazole fungicide could be used to effectively control stem rot and aggregate sheath spot in irrigated rice. Six treatments consisting of different combinations of potassium phosphite alone or with a fungicide and an unsprayed control were assayed in one application at lateboot to early-heading. Phosphite alone in single and double rate slightly reduced severity and incidence of stem rot and produced a small yield increase over the unsprayed control. Fungicide at a 50% label rate with phosphite reduced stem rot severity and incidence to a similar level as the fungicide alone applied at the label rate. Disease severity was reduced by approximately 25% and incidence by 17e20% when compared with untreated control. Yield increase was 5% for both treatments over the unsprayed control. Fungicide combined with phosphite at single and double rates reduced stem rot severity by 40 e45% and incidence by 34e38% when compared with untreated control, with yield increased by 10% over the unsprayed control and 5% over plots treated with a fungicide. These results indicate that a single application of potassium phosphite combined with fungici... Presentar Todo |
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Palabras claves : |
AZOXYSTROBIN; CIPROCONAZOLE. |
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Thesagro : |
ARROZ; EL PASO 144; ORYZA SATIVA; URUGUAY. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02336naa a2200229 a 4500
001 1055345
005 2019-10-08
008 2016 bl uuuu u00u1 u #d
022 $a0261-2194
024 7 $a10.1016/j.cropro.2016.08.002$2DOI
100 1 $aMARTÍNEZ, S.
245 $aEffects of combined application of potassium phosphite and fungicide on stem and sheath disease control, yield, and quality of rice.$h[electronic resource]
260 $c2016
500 $aArticle history: Received 29 March 2016; received in revised form 26 July 2016; accepted 2 August 2016.
520 $aAbstract: Phosphite has been shown to suppress some diseases in different plant species but disease control in rice has not been investigated. In 2012/13 and 2013/14 potassium phosphite was sprayed at 1775 g ha1 and 3550 g ha1 in field plots of rice in Uruguay to determine if phosphite alone or in combination with label rates of a mixed strobilurin and triazole fungicide could be used to effectively control stem rot and aggregate sheath spot in irrigated rice. Six treatments consisting of different combinations of potassium phosphite alone or with a fungicide and an unsprayed control were assayed in one application at lateboot to early-heading. Phosphite alone in single and double rate slightly reduced severity and incidence of stem rot and produced a small yield increase over the unsprayed control. Fungicide at a 50% label rate with phosphite reduced stem rot severity and incidence to a similar level as the fungicide alone applied at the label rate. Disease severity was reduced by approximately 25% and incidence by 17e20% when compared with untreated control. Yield increase was 5% for both treatments over the unsprayed control. Fungicide combined with phosphite at single and double rates reduced stem rot severity by 40 e45% and incidence by 34e38% when compared with untreated control, with yield increased by 10% over the unsprayed control and 5% over plots treated with a fungicide. These results indicate that a single application of potassium phosphite combined with fungicide can be used efficiently to manage of rice stem diseases.
650 $aARROZ
650 $aEL PASO 144
650 $aORYZA SATIVA
650 $aURUGUAY
653 $aAZOXYSTROBIN
653 $aCIPROCONAZOLE
773 $tCrop Protection, 2016$gv. 89, p. 259-264.
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