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Farmers' seed selection practices and maize variety characteristics in a traditionally-based Mexican community

By: Louette, D.
Contributor(s): Smale, M.
Material type: materialTypeLabelBookSeries: CIMMYT Economics Working Paper ; 98-04.Analytics: Show analyticsPublisher: Mexico : CIMMYT, 1998Description: 33 pages.Subject(s): Genetic polymorphism AGROVOC | Genetic variation | Innovation adoption | Maize | Plant anatomy | Research projectsOnline resources: Open Access through Dspace Summary: Experimental results and farmers surveys in a Mexican community indicates that farmers' seed selection practices protect the phenological integrity of their maize varieties as they define them, despite numerous factors contributing to genetic instability. Analysis of morphological and genetic data suggest that when subjected to significant gene flow through cross-pollination, ear characteristics are maintained through farmers' selection even though other characteristics may continue to evolve genetically. Because the effects of farmers' selection practices are confined largely to ear characteristics and plant characteristics that are linked to them, their practices appear to offer only limited scope for improving varieties. Farmers' expectations of what they can achieve through seed selection are similarly modest. These findings indicate potentially complementary roles for professional breeders and Mexican farmers in developing methods to improve maize landraces on farms-if farmers themselves perceive benefits from the collaboration.Collection: CIMMYT Publications Collection
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Book CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection Look under series title (Browse shelf) 1 Available 624516
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Open Access

Experimental results and farmers surveys in a Mexican community indicates that farmers' seed selection practices protect the phenological integrity of their maize varieties as they define them, despite numerous factors contributing to genetic instability. Analysis of morphological and genetic data suggest that when subjected to significant gene flow through cross-pollination, ear characteristics are maintained through farmers' selection even though other characteristics may continue to evolve genetically. Because the effects of farmers' selection practices are confined largely to ear characteristics and plant characteristics that are linked to them, their practices appear to offer only limited scope for improving varieties. Farmers' expectations of what they can achieve through seed selection are similarly modest. These findings indicate potentially complementary roles for professional breeders and Mexican farmers in developing methods to improve maize landraces on farms-if farmers themselves perceive benefits from the collaboration.

Socioeconomics Program

Text in English

LSLinks|9901|AGRIS 9901|R98-99CIMPU|DSpace 1

CSME01

CIMMYT Publications Collection

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