Triple test cross analysis for metric traits in yellow sarson (Brassica rapa var. yellow sarson Prain) across environments

Abstract

Various biometrical designs have been used in different crops to estimate various types of gene effects. In most of the designs, it is assumed that non-allelic interactions are absent, where as the fact is often contrary to the assumption. The information on genetics, especially on epistatic gene effects, of important characters in yellow sarson (Brassica rapa var. yellow sarson Prain), an autogamous crop is meagre. The triple test cross technique which especially tests the non-allelic interactions and also provides equally precise estimates of the additive and dominance components of genetic variation, has been used for genetic analysis of seed yield, oil content and component traits in yellow sarson across environments.