Title: Statistical Aspect of Clonal Progeny Test - PowerPoint PPT Presentation

Description: Correct estimates of genetic parameters for traits of importance are needed prior to any genetic evaluation program. Heritability provides an idea to the extent of genetic control for expression of a particular trait and the reliability of phenotype in predicting its breeding value. High heritability indicates less environmental influence in the observed variation. Genotypic correlations between traits indicate the direction and magnitude of correlated responses to selection, the relative efficiency of indirect selection, and permit calculation of optimal multiple trait selection indices. In estimation of genetic parameters in forest tree species on the basis of analysis of variance (ANOVA), heterogeneity of years and genotype (or family) × environment (or Block) interaction for data sets during the juvenility to maturity life period is ignored i.e., assumption regarding homogeneity of residual means. – PowerPoint PPT presentation