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Factors influencing maize seed recycling and their implications to hybrids

By: Akulumuka, V.C | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Kaswende, J.S [coaut.] | Mduruma, Z.O [coaut.] | Nkonya, E.M [coaut.] | Ransom, J.K.|Palmer, A.F.E.|Zambezi, B.T.|Mduruma, Z.O.|Waddington, S.R.|Pixley, K.V.|Jewell, D.C [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Addis Ababa (Ethiopia) CIMMYT : 1997ISBN: 92-9146-025-7.Subject(s): Production factors | Tanzania | CIMMYT | Zea mays AGROVOC | Yields AGROVOC | Hybrids AGROVOC | Plant breeding AGROVOCDDC classification: 633.15 Summary: Earlier research on maize in Tanzania focused on breeding open pollinated varieties rather than hybrids for low- and midaltitude dry areas. Consequently, open pollinated varieties were planted more than hybrids. At present the proportion of hybrids developed and released for these areas is increasing. Surveys conducted in eastern and northern Tanzania revealed that farmers are recycling open pollinated varieties for over four years and hybrids for three years contrary to recommendations. Farmers reported the high cost of hybrid seed was a factor leading to that practice. Also, the practice of recycling open pollinated varieties seems to have a carryover effect on hybrids. Farmers do not notice a significant yield reduction on recycled hybrids. Farmers have to sell three bags (300kg) of grain maize if they want to buy ten kilograms of hybrid seed. This paper recommends that the price of hybrid seed should correspond to the price of grain maize. In addition, farmers need to be made aware of potential hybrid performance and be encouraged to improve their seed management techniques. Short of that, the future of hybrid maize in low- and mid-altitude dry areas, and probably other areas, is questionable.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.15 EAS No. 5 (Browse shelf) 1 Available 1H624172
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Earlier research on maize in Tanzania focused on breeding open pollinated varieties rather than hybrids for low- and midaltitude dry areas. Consequently, open pollinated varieties were planted more than hybrids. At present the proportion of hybrids developed and released for these areas is increasing. Surveys conducted in eastern and northern Tanzania revealed that farmers are recycling open pollinated varieties for over four years and hybrids for three years contrary to recommendations. Farmers reported the high cost of hybrid seed was a factor leading to that practice. Also, the practice of recycling open pollinated varieties seems to have a carryover effect on hybrids. Farmers do not notice a significant yield reduction on recycled hybrids. Farmers have to sell three bags (300kg) of grain maize if they want to buy ten kilograms of hybrid seed. This paper recommends that the price of hybrid seed should correspond to the price of grain maize. In addition, farmers need to be made aware of potential hybrid performance and be encouraged to improve their seed management techniques. Short of that, the future of hybrid maize in low- and mid-altitude dry areas, and probably other areas, is questionable.

English

9712|AGRIS 9702

Jose Juan Caballero

CIMMYT Publications Collection

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