An improved Brassica hybrid plant and seed thereof designated 46P50 are provided. The Brassica hybrid produces seed having an average weight of oil per gram of mature dried seed that is between about 2.7 to 3.3 percentage points higher than that produced by current commercial hybrids when grown under the same environmental conditions. Also provided are methods for producing the hybrid plant, methods of oil and meal production, and methods of breeding with the hybrid plant.