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Downy mildew of maize in Asia: New perspectives in resistance breeding

By: Raymundo, A.D | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico, DF (Mexico) | 7, Proceedings of the Asian Regional Maize Workshop Los Baños (Philippines) 23-27 Feb 1998.
Contributor(s): Vasal, S.K.|Gonzalez Ceniceros, F.|XiongMing, F [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Los Baños, Laguna (Philippines) PCARRD : 2000Description: p. 277-283.Subject(s): Agricultural economics | Asia | Chemical control | Genetic resistance | Maize | Peronosclerospora | Plant diseases | Sclerospora | Seed crops | Seed production | Zea mays AGROVOC | Hybrids AGROVOC | Plant breeding AGROVOCSummary: Maize is an important crop in several countries of Asia. The demand in many countries is increasing steadily, however, several production constraints act as major hurdle in increasing maize yields. Downy mildews incited by several species of the genera Peronosclerospora, Sclerospora and Sclerophthora is a major limiting factor in some countries. Economic losses are considerable especially when the incidence of disease is high and the varieties lack tolerance. The paper describes and touches on several disease management strategies including cultural practices, Chemical control, Host plant resistance, virulence and variation in Peronosclerospora species. The paper discusses expression of host plant resistance and genetic mechanism(s) controlling the resistance. Breeding efforts in building up resistance are discussed in detail resulting in the development of several varieties resistant to downy mildews. The paper emphasizes need for pursuing vigorous research efforts in developing downy mildew resistant varieties and hybrids.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

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Maize is an important crop in several countries of Asia. The demand in many countries is increasing steadily, however, several production constraints act as major hurdle in increasing maize yields. Downy mildews incited by several species of the genera Peronosclerospora, Sclerospora and Sclerophthora is a major limiting factor in some countries. Economic losses are considerable especially when the incidence of disease is high and the varieties lack tolerance. The paper describes and touches on several disease management strategies including cultural practices, Chemical control, Host plant resistance, virulence and variation in Peronosclerospora species. The paper discusses expression of host plant resistance and genetic mechanism(s) controlling the resistance. Breeding efforts in building up resistance are discussed in detail resulting in the development of several varieties resistant to downy mildews. The paper emphasizes need for pursuing vigorous research efforts in developing downy mildew resistant varieties and hybrids.

English

0208|AGRIS 0201|AL-Maize Program|R01PROCE

Juan Carlos Mendieta

CIMMYT Publications Collection

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