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Yield stability of maize synthetic varieties tested an farm

By: Fuentes, M | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) | Arnel R. Hallauer International Symposium on Plant Breeding Mexico, D.F. (Mexico) 17-22 Aug 2003.
Contributor(s): Castellanos, S [coaut.] | Perez, C [coaut.] | Zea, J [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 2003Description: p. 194-195.Subject(s): Developing Countries | Farmers | Grain yield | Latin America | Maize | Testing | Varieties | Farming systems AGROVOCSummary: The reduced use of improved maize varieties is still a constraint to maize production in the developing world. In Latin America in 2000, only 50% of the 25 million hectares planted to maize were sown with F1 seed, reducing the potential of the maize growing regions. The use by farmers of exjsting germplasm hybrids and open pollinated varieties resistant to biotic and abiotic stresses could easily duplicate the yields of the marginal areas planted with native cultivars (Cordova 2003). The most important constraint to the adoption of new improved varieties in Latin America is seed availability. The seed industry has not shown an interest in areas where the return to investment is low, yet these areas constitute more than 60% of the two million hectares planted to maize in Central America (CIMMYT 2000). These small farmers need a different type of seed production scheme assodated to their of circunstances of production (Cordova 1989). The objective of this study was to estimate the yield stability of the synthetic varieties and identify the superior variety for further release in Guatemala.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-3872 (Browse shelf) 1 Available 632570
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The reduced use of improved maize varieties is still a constraint to maize production in the developing world. In Latin America in 2000, only 50% of the 25 million hectares planted to maize were sown with F1 seed, reducing the potential of the maize growing regions. The use by farmers of exjsting germplasm hybrids and open pollinated varieties resistant to biotic and abiotic stresses could easily duplicate the yields of the marginal areas planted with native cultivars (Cordova 2003). The most important constraint to the adoption of new improved varieties in Latin America is seed availability. The seed industry has not shown an interest in areas where the return to investment is low, yet these areas constitute more than 60% of the two million hectares planted to maize in Central America (CIMMYT 2000). These small farmers need a different type of seed production scheme assodated to their of circunstances of production (Cordova 1989). The objective of this study was to estimate the yield stability of the synthetic varieties and identify the superior variety for further release in Guatemala.

English

0309|AGRIS 0301|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Staff Publications Collection

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