Effect of heavy metals on in vitro growth and development of the Fenzl.

Heavy metals have played a great role in the genesis of the present-day civilization. Human beings are affected when these metals are added to the food chain. Although these are the most important plant nutrients, they are phytotoxic at high concentrations.

High efficient somatic embryogenesis development from leaf cultures of Citrullus colocynthis (L.) Schrad for generating true type clones.

We report an efficient somatic embryogenesis and plant regeneration system using leaf cultures of Citrullus colocynthis (L.) and assessed the effect of plant growth regulators on the regeneration process. Initially leaf explants were cultured on Murashige and Skoog medium supplemented with different concentrations of auxins viz.