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than the testcross hybrids (Troyer and Wellin, 2009). Only the best performing inbreds will then be used for hybrid development for further testing. As pointed out by Troyer and Wellin (2009), inbred yield testing permits better sampling of stress in the production environments and better phenotyping of traits as inbreds are more susceptible to stress than hybrids allowing incorporation of other technologies such as molecular marker assisted selection.
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are used as parents for the next breeding era. The imperative for the future is to maintain the rate of genetic gain despite declining genetic variation to meet the combined challenges of climatic changes and burgeoning human population.
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