The present research was conducted at the farmer’s field of Rangpur during Rabi season 2018-19 to investigate the growth and yield performance of mustard mutants. The experiment was arranged in a randomized complete block design consisting of two mustard mutants (viz. MM-35, MM-36, MM-37 and BINA Sarisha-7) as treatment and replicated thrice. All the growth, yield attributes and yield were substantially influence among the mustard mutants except the phenological parameters. Results of the experiment showed that the highest plant height in BINA Sarisha-7 (142.87 cm) and MM-36 was found better in respect of maximum seed yield (1.75 ton/ ha), number of branches (3.87), 1000-seed weight       (3.11 g). Besides this, MM-37 showed the maximum number of seeds siliqua-1. Therefore, findings of this study suggested that MM-36 would be suitable for better productivity and recommended for cultivation at Rangpur region in Bangladesh.

Key words: Yield, mustard, mutants.