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Analysis of a Diallel Cross of Maize Varieties Grown at Three Altitudes in Tanzania

Published online by Cambridge University Press:  03 October 2008

A. Bolton
A. Bolton
Affiliation:
Research and Training Institute, Ukiriguru, P.O. Box 1433, Mwanza, Tanzania
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Summary

The analysis is presented of a 17 variety maize diallel cross grown in Tanzania at 1300, 500 and 200 m. Thirteen of the varieties included Central American material, mainly Caribbean and Flint types, and four were derived from Eastern African Flat-White maizes. Variety cross performance was much affected by environmental conditions. At 200 and 1300 m., four of the top five varieties were the same, and selection of varieties for composite formation was not particularly critcal. At the 500 m. site, order of yields differed markedly from the other sites, and predicted composite yield was much more affected by the choice of varieties included. Criteria are discussed for selection of varieties to be included in composites at the three altitudes.

Type
Research Article
Information
Experimental Agriculture , Volume 7 , Issue 2 , April 1971 , pp. 145 - 156
Copyright
Copyright © Cambridge University Press 1971

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References

REFERENCES

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