“…Mittal et al (1993) studied eight Vigna radiata cultivars for enzyme activities and concluded that there was a positive correlation of acid phosphatase with 100 seed weight but a negative correlation with number of pods per plant and seed yield. Seven isoenzymes, extracted from seed, seedling, stem, root, or leaf tissues of six closely related lines of black bean, were compared for polymorphism (Driedger et al 1994), and variation was observed for acid phosphatase, peroxidase, and esterase, with some lines possessing unique banding patterns. In this study, bands were identified for trait-specific expression using different isoenzymes that can discriminate among plant accessions.…”