Genetic architecture of some radiation induced mutants of Olitorius jute

From a nine parent diallel cross in olitorius jute the genetic architecture of some radiation induced mutants (Dwarf, Ornamental, palmate, Crinkle and Irregularis) was studied for various characters. While the mutant palmate was found to be a good general combiner for base, middle and wood diameters; the mutants crinkle and irregularis were good general combiners for earliness. Crinkle and palmate were good general combiners for fibre : wood ratio and branch number, respectively. On the basis of the per se performance, most of the best five crosses were either intermutant, or in combination with a mutant, as one of the parents. Presence of the mutant crinkle is marked in all the characters. It is suggested that three intermutant crosses (Palmate x Irregularis, Dwarf x Palmate and Dwarf x Crinkle) and two crosses with one of the parents as mutant (JRO-632 x Crinkle and Ornamental x Sudan green) could be used for exploitation of heterosis. (author). 3 tabs., 6 refs