Zinc Edta

It is the source for Trytophan, which in turn, produce the endogenous plant hormone Alpha Napthalne Acetic Acid (ANA) which enhances growth of crop plants. Zinc enhances photosynthetic activity through its influence on chlorophyll synthesis. Oxidation reactions in plant cells depend on Zinc, and Zinc also regulates metabolism of carbohydrates and its use. Growth promoting hormones, particularly Auxins, are activated by Chelated Zinc. Zinc treated plants generally remain green and become resistant to disease attack to a great extent.