Mustard (Brassica spp.) is a vital oilseed crop in Bangladesh, significantly contributing to domestic edible oil production and the rural economy. This study was conducted at the BINA Sub-station Farm, Ishurdi, Pabna during the 2023–24 at rabi season to evaluate the yield performance and agronomic variability of five mustard cultivars—Binasarisha-4, Binasarisha-9, Binasarisha-11, BARI Sarisha-14, and BARI Sarisha-17. The experiment followed a Randomized Complete Block Design (RCBD) with three replications. Key traits including plant height, branching, siliqua number, seed characteristics, and yield were measured and analyzed through ANOVA. Significant differences were observed among cultivars, indicating substantial genetic variability. Binasarisha-9 demonstrated superior performance in plant height, number of siliqua per plant, seeds per siliqua, and seed yield (1.86 t/ha), followed by BARI Sarisha-17 and Binasarisha-4. Conversely, Binasarisha-11 and BARI Sarisha-14 exhibited lower yields despite high primary branching, likely due to poor siliqua development. These results underline the importance of genotype selection in enhancing mustard productivity and recommend Binasarisha-9, Binasarisha-4, and BARI Sarisha-17 for cultivation in the target agro-climatic zone. The findings contribute to ongoing efforts to improve mustard yield and support food security through strategic varietal selection.
