COMBINED EFFECT OF ALLEOPATHY AND UV-B RADIATION ON LENS CULINARIS MEDIK

Abstract

The effect of UV-B radiation and alleopathic chemicals of Prosopis juliflora were studied on Lens culinaris individually and in combination. The UV-B radiation suppressed the germination percentage and germination velocity at 10, 20 and 30 minutes exposures. Similarly the allelochemicals of Prosopis juliflora at different concentration (25%, 50%, 75% and 100%) also inhibit the final germination percentage and germination velocity. The final germination percentage and germination velocity were shown more reduction when both these stresses that is P. juliflora extract and UV-B radiations for 30 minutes applied simultaneously. Both growth of shoot and root and fresh and dry weights were also reduced in all treatments, and the reduction increases with the increase in time of exposure and concentration of extract. It is obvious that the combined effect of UV-B radiation and allelopathy influence more Lens culinaris as compared to individual effect.