Yields and acceptability of opaque-2 maize in the tropics of Colombia

By:

Francis, Charles Andrew

Contributor(s):

Material type: Text

TextLanguage: English Publication details: Cali, CO Centro Internacional de Agricultura Tropical (CIAT) 1972Description: 7 pSubject(s): LOC classification:

66063

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Summary: Yield trials with farmers and acceptance surveys were conducted in Colombia in 1969-1970 to assess the potential use of opaque-2 maize in the tropical regons of the country. Yields were variable, particularly from one farm to another. In spite of this variability which may have confused the results, and analysis of variance was applied, using farms as replications. No significant differences were found between two growing seasons, among six regions of the increase in yields when traditional farmer technology was replaced with a package of cultural practices which included adequae fertility, insect control, and weed control. Opaque-2 hybrids significantly improved thew yield potential over the farmer's traditional varieties, whether he used his existing technology or acceptability of opaque-2 floury maize was found to be low. This may be improved by education, promotion, and eventual development of a flint-type maize with the same nutritional quality as the opaque.

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Holdings
Item type	Current library	Collection	Call number	Status	Date due	Barcode	Item holds
Online Document	CIAT Library Web	Electronic Document	66063 (Browse shelf(Opens below))	Not For Loan (Restricted Access)
Books	CIAT Library CIAT Publications	CIAT Publications	66063 (Browse shelf(Opens below))	Available

Total holds: 0

Trabajo presentado en el 64th Annual Meeting, American Society of Agronomy, Miami Beach, Florida, Nov. 1, 1972

Yield trials with farmers and acceptance surveys were conducted in Colombia in 1969-1970 to assess the potential use of opaque-2 maize in the tropical regons of the country. Yields were variable, particularly from one farm to another. In spite of this variability which may have confused the results, and analysis of variance was applied, using farms as replications. No significant differences were found between two growing seasons, among six regions of the increase in yields when traditional farmer technology was replaced with a package of cultural practices which included adequae fertility, insect control, and weed control. Opaque-2 hybrids significantly improved thew yield potential over the farmer's traditional varieties, whether he used his existing technology or acceptability of opaque-2 floury maize was found to be low. This may be improved by education, promotion, and eventual development of a flint-type maize with the same nutritional quality as the opaque.