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Comparisons between CIMMYT tropical white quality protein maize (QPM) tester lines

By: Trifunovic, S | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) | Arnel R. Hallauer International Symposium on Plant Breeding Mexico, DF (Mexico) 17-22 Aug 2003.
Contributor(s): Avila, G [coaut.] | Cordova, H.S [coaut.] | Pandey, S [coaut.] | Ramírez, A [coaut.] | Vergara, N [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 2003Description: p. 248-249.ISBN: 970-648-106-0.Subject(s): Developing Countries | Growth | Maize | Soil conditioners | Southern Africa | Yields AGROVOC | Genotypes AGROVOC | Hybrids AGROVOC | Plant breeding AGROVOCSummary: Discovery of maize mutants in the mid-l960s containing the opaque-2 (02) gene (Mertz et al. 1964), which enhances levels of lysine and tryptophan in endosperm protein, opened a completely new area in maize breeding. Despite a general flagging of interest in 02 maize because of deleterious traits (Vasal 1993), CIMMYT sdentists conducted two decades of work to incorporate modifier genes that remedied most drawbacks. The result, 33 tropical and 22 subtropical quality protein maize (QPM) lines, has recently captured attention in the developing world for its potential to improve the nutrition and livelihoods of the poor who grow and consume maize, and for the outstanding yields of newer QPM hybrids (Cordova et al. 2000). The objectives of this study were to estimate general combining abilities (GCA) between the best white tropical QPM lines, to see their strengths, disadvantages, and indicate lines for continued work.Collection: CIMMYT Staff Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Staff Publications Collection CIS-3863 (Browse shelf) 1 Available 632561
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Discovery of maize mutants in the mid-l960s containing the opaque-2 (02) gene (Mertz et al. 1964), which enhances levels of lysine and tryptophan in endosperm protein, opened a completely new area in maize breeding. Despite a general flagging of interest in 02 maize because of deleterious traits (Vasal 1993), CIMMYT sdentists conducted two decades of work to incorporate modifier genes that remedied most drawbacks. The result, 33 tropical and 22 subtropical quality protein maize (QPM) lines, has recently captured attention in the developing world for its potential to improve the nutrition and livelihoods of the poor who grow and consume maize, and for the outstanding yields of newer QPM hybrids (Cordova et al. 2000). The objectives of this study were to estimate general combining abilities (GCA) between the best white tropical QPM lines, to see their strengths, disadvantages, and indicate lines for continued work.

English

0311|AGRIS 0301|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Staff 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.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org