EFFECTS OF ZINC ON GERMINATION, SEEDLING GROWTH AND NUTRIENT CONTAIN OF RAUVOLFIA SERPENTINE.

摘要

The global heavy metal pollution is increasing in the environment due to increase in the number of industries. The industrial waste water contains heavy metals like, cadmium, lead, zinc, cobalt and chromium. Present work is an attempt to investigate the effects of heavy metal zinc on the germination and growth of Rauvolfia serpentine Benth. ex. Kurz. -a medicinal plant used in the treatment of high and low blood pressures, snake bites, psoriasis, etc. The seeds of this plant were grown in different concentration of zinc sulfate in order to assess the effect of zinc on seed germination growth and nutritional (Total sugars and Protein) changes. The results indicated that the lower concentration showed increase in germination, seedling growth and nutritional contain. The higher level has reducing effects on these parameters and decreased the growth.