Normal view MARC view ISBD view

Resistance to Septoria tritici blotch in Southern Cone germplasm

By: Kohli, M.M | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Gilchrist, L.|Ginkel, M. van|McNab, A.|Kema, G.H.J [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 1995ISBN: 968-6923-49-7.Subject(s): Blights | Disease resistance | Fungi | Germplasm | Plant diseases | Resistance to injurious factors | Selection | Septoria | South America | TriticumDDC classification: 633.1194 Summary: Between 1984 and 1991, 1974 lines included in the regional wheat screening nursery from the Southern Cone region of South America were analyzed to study resistance to septoria tritici leaf blotch and pathogen variability existing m the region. In terms of germplasm, Uruguay offers the highest level of resistance even though the infection is variable at the key testing sites over the years. In general, the level of resistance in germplasm originating from southern parts of Argentina, Brazil and Uruguay is the highest, followed by that of Chile and Paraguay. Germplasm from Bolivia, in general, was susceptible. Based on correlation coefficients calculated for each set of locations and years, La Estanzuela, Uruguay, is the most critical location for germplasm screening. Pathogen variability between Balcarce, Argentina, and La Estanzuela, Uruguay, demonstrates the existence of different pathogen populations under field conditions.|E1 vivero regional de selecci6n de trigos del Cono Sur de Sud America incorporo 1974 lineas entre los anos 1984 a 1991; esta informacion fue analizada para estudiar la resistencia al tizon de la hoja causado por Septoria tritici y su variabilidad en la region. En terminos de germoplasma, Uruguay ofrece los mayores niveles de resistencia aun cuando la resistencia es variable en los sitios clave a traves de los anos. En general, el nivel resistencia en el germoplasma originario de partes del sur de Argentina, Brazil, y Uruguay es el mas alto, seguido por el de Chile y Paraguay. El germoplasma de Bolivia, en general, fue susceptible. Basado en los coefficientes de correlacion calculados para cada grupo de localidades y anos, La Estanzuela, Uruguay, es la localidad mas critica para la seleccion de germoplasma. La variabilidad del patogeno entre Balcarce, Argentina, y La Estanzuela, Uruguay, demostro la existencia de diferentes poblaciones del patogeno bajo condiciones de campo.Collection: CIMMYT Publications Collection
Tags from this library: No tags from this library for this title. Log in to add tags.
    average rating: 0.0 (0 votes)
Item type Current location Collection Call number Copy number Status Date due Barcode Item holds
Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.1194 GIL (Browse shelf) 1 Available J623519
Total holds: 0

Between 1984 and 1991, 1974 lines included in the regional wheat screening nursery from the Southern Cone region of South America were analyzed to study resistance to septoria tritici leaf blotch and pathogen variability existing m the region. In terms of germplasm, Uruguay offers the highest level of resistance even though the infection is variable at the key testing sites over the years. In general, the level of resistance in germplasm originating from southern parts of Argentina, Brazil and Uruguay is the highest, followed by that of Chile and Paraguay. Germplasm from Bolivia, in general, was susceptible. Based on correlation coefficients calculated for each set of locations and years, La Estanzuela, Uruguay, is the most critical location for germplasm screening. Pathogen variability between Balcarce, Argentina, and La Estanzuela, Uruguay, demonstrates the existence of different pathogen populations under field conditions.|E1 vivero regional de selecci6n de trigos del Cono Sur de Sud America incorporo 1974 lineas entre los anos 1984 a 1991; esta informacion fue analizada para estudiar la resistencia al tizon de la hoja causado por Septoria tritici y su variabilidad en la region. En terminos de germoplasma, Uruguay ofrece los mayores niveles de resistencia aun cuando la resistencia es variable en los sitios clave a traves de los anos. En general, el nivel resistencia en el germoplasma originario de partes del sur de Argentina, Brazil, y Uruguay es el mas alto, seguido por el de Chile y Paraguay. El germoplasma de Bolivia, en general, fue susceptible. Basado en los coefficientes de correlacion calculados para cada grupo de localidades y anos, La Estanzuela, Uruguay, es la localidad mas critica para la seleccion de germoplasma. La variabilidad del patogeno entre Balcarce, Argentina, y La Estanzuela, Uruguay, demostro la existencia de diferentes poblaciones del patogeno bajo condiciones de campo.

English

AGRIS 9602|R95PROCE

CIMMYT Publications Collection

There are no comments for this item.

Log in to your account to post a comment.
baner

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Monday –Friday 9:00 am. 17:00 pm. If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org