“…This anomaly may be due to some environmental as well as physiological conditions. Clumping and stickiness of chromosomes have been observed more frequently in case of Gamma-ray irradiated plants (Sudha karan 1972), chemically treated plants (Mehra and Mann 1974) and UV irradiated plants (Sarma and Singh 1977). In nature high temperature and cosmic irradiation are mainly responsible for the phenomenon.…”