Pravin Kumar, Pankaj Kumar Aditya, Dheeraj Gautam, Vyomesh Vibhaw, Amit Kumar, Kiran Gupta, and Vinod Prasad
Abstract
The genotoxic effects of organophosphate insecticides Profenofos 50% EC in meiotic behaviour of chromosome were studied. The rooted onion bulbs were treated with different concentration of insecticides (0.2%, 0.4%, 0.6%, 0.8% and 1.0%) for varying treatments periods (24 hrs., 48 hrs. and 72 hrs.) respectively. The rooted onion bulbs were planted to obtained for M1 generation for meiotic analysis. Meiotic division of PMC of Allium cepa L. anthers were examined cytologically. This insecticide enhances the chromosome abnormality and statistically increase (p ? 0.05) in dose and duration dependent manner in addition to pollen sterility. Numerous cytological abnormalities were observed such as stickiness, micronuclei, lagging, univalent, quadrivalent, chromatin bridge and break such anomalies in plants have the potential to affect genetic makeup by ingestion exhibited chromosomal abnormalities at lower concentration. The scientists suggest avoiding large concentration dosages.