For the production of edible oils intended for commercial usage, major oilseed crops such as Brassica napus L. are essential. This study proposed to determine Brassica species' botanical descriptions and assess the performance of different variants of Brassica in terms of quantitative and morphological characteristics. The associated traits and morphological characteristics of fifteen Brassica genotypes were assessed. Using three replications, the trial was carried out using a Randomized Complete Block Design. Quantitative parameters, such as the number of major branches, plant height, the number of seeds per plant, the weight of 1000 seeds, days to maturity, and yield, were noted in the data. The study's findings demonstrate that genotype 10 has the largest plant height (121.33 cm), while genotype 9 has the maximum number of primary branches (6.33), genotype 11 has the maximum number of seeds (29), and genotype 8 has the maximum yield (33.66g). Correlation and analysis of variance are used to assess the accuracy of the data. The study's findings show a favorable and strong association between plant height and yield, seeds, and the number of main branches. The quantity of seeds and the number of primary branches have a negative correlation, but days to maturity and yield are positively correlated. There is a positive relationship between the yield and height of plants and the number of major branches, the number of seeds, and days till maturity.