Utilization of germplasm for earliness and improvement of Brassica campestris L. var. Yellow sarson

A total of 132, two way crosses were made from diverse sources of self-compatible yellow sarson with four early accessions of self-incompatible brown seeded toria, for improvement and induction of earliness. The crosses were attempted and F₁, were tested for nine yield attributing traits including earliness. The parents (33 + 4) and their crosses were analysed for genetic parameters (gca, sca, mean value) and further parents (33 + 4) and their crosses (132) were classified for High (H) and low (L) of their individual attributes over the characters in respect of the significant gca value in positive or negative direction. The studies indicate that the residual variability existing in the germplasm can be exploited for crop improvement. Two way crosses are highly influenced by status of their parents.