It is a descriptive measure used to assess the usefulness and precision of results from cultivar evaluation trials.It is plugged into the breeder’s Equation to predict the response to selection.the information to the right of an '', other than 'R') is to be ignored in matching elements of terms. ignore.suffices: A logical vector specifying whether the suffices of the asreml-assigned names of the variance terms (i.e. There are two main reasons why heritability on an entry-mean basis is of interest in plant breeding ( Schmidt et al., 2019a): The names must match those in the vparameters component of the asreml.obj component in the new asrtests.object. There are usually additional interpretations associated with \(H^2\): (i) It is equivalent to the coefficient of determination of a linear regression of the unobservable genotypic value on the observed phenotype (ii) It is also the squared correlation between predicted phenotypic value and genotypic value and (iii) It represents the proportion of the selection differential ( \(S\)) that can be realized as the response to selection ( \(R\)) ( Falconer and Mackay, 2005). Broad-sense heritability ( \(H^2\)) is defined as the proportion of phenotypic variance that is attributable to an overall genetic variance for the genotype ( Schmidt et al., 2019b).
