Brassica napus is an important oilseed crop, commonly grown worldwide for multiple purposes. A planned multi-locational experiment evaluated the morphophysiological and biochemical attributes of 80 Brassica napus genotypes. Data on various yield and oil-related parameters were evaluated for genetic variability, correlation (r), and broad-sense heritability (h2BS). The analysis of variance revealed the presence of significant variations among the genotypes for all studied traits. Plant height showed a positive correlation with erucic acid (0.290) and glucosinolate (0.264), while secondary branches revealed a positive association with seed yield (2.90). Principal component analysis indicated the first five principal components (PCs) contributed up to 73% of total variation, with the first PC representing the highest percentage of variation. The biplot suggests the genotypes Faisal canola, Diamond canola, AS-333, and HMU-1621B can be beneficial in breeding programs to develop new accessions with improved seed yield and oil-related attributes of Brassica.
Biplot, genetic diversity, heritability, oil contents, PCA
Eighty accessions, screened for yield and related traits, indicated the genotypes Faisal canola, Diamond canola, AS-333, and HMU-1621B exhibited the highest yield and fatty acid content.