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From landrace to hybrid: Strategies for the use of source populations and lines in the development of drought tolerant cultivars

By: Beck, D.L | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Betrán, F.J [coaut.] | Edmeades, G.O [coaut.] | Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Peña-Valdivia, C.B [eds.] | Willcox, M [coaut.] | Banziger, M [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 1997ISBN: 968-6923-93-4.Subject(s): Drought resistance | Drought stress AGROVOC | CIMMYT | Genetic resources | Zea mays AGROVOC | Hybrids AGROVOC | Plant breeding AGROVOCDDC classification: 633.153 Summary: Significant yield reductions caused by drought are common occurrences in maize production fields throughout the world. Although breeding efforts aimed at developing drought-tolerant cultivars are justified in many of these regions, the complexity of the task and the scarcity of resources are often prohibitive. This paper will present principles learned and give an account of germplasm developed, based on our experience with drought-tolerant breeding at CIMMYT. Strategies discussed leading to more efficient development of drought tolerant cultivars include: a)field management of drought stress; b) source population development; c) utilization and introgression of "exotic" drought tolerant sources; d) appropriate recurrent selection schemes; e) use of secondary traits and selection indices; f) line development; and g) hybrid formation and testing.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.153 EDM (Browse shelf) 1 Available 2Q624179
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Significant yield reductions caused by drought are common occurrences in maize production fields throughout the world. Although breeding efforts aimed at developing drought-tolerant cultivars are justified in many of these regions, the complexity of the task and the scarcity of resources are often prohibitive. This paper will present principles learned and give an account of germplasm developed, based on our experience with drought-tolerant breeding at CIMMYT. Strategies discussed leading to more efficient development of drought tolerant cultivars include: a)field management of drought stress; b) source population development; c) utilization and introgression of "exotic" drought tolerant sources; d) appropriate recurrent selection schemes; e) use of secondary traits and selection indices; f) line development; and g) hybrid formation and testing.

Genetic Resources Program|Research and Partnership Program

English

9802|AGRIS 9702|anterior|R97-98PROCE|FINAL9798

Jose Juan Caballero

INT1888|INT3242

CIMMYT Publications Collection

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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