Abstract
A method for the statistical analysis of binary data (derived from a retain, reject selection process) from incomplete diallel crosses is presented. Based on the fixed statistical model of Griffing (1956), formulae are derived which allow the estimation of parameters and the analysis of variance by weighted least squares. The method results from the application of vector theory to the work of Keuls & Garretsen (1977, 1978). The theory is illustrated by a worked example with data from an incomplete potato diallel cross involving 18 parents, although the method itself is applicable to any crop.
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