NATURAL PORPHIN SALT AND USE THEREOF AS PLANT GROWTH REGULATOR AND IMMUNE RESISTANCE INDUCER

Disclosed herein are a natural porphin salt and use thereof as a plant growth regulator and an immune resistance inducer. The porphin salt comprises a salt of porphin or a salt of chlorin. Compared with the prior art, the porphin salt of the present invention features good stability, stable and reliable quality after long-term storage, long shelf life, and easy carrying and transportation. The water solubility of the product is good, an aqueous solution is easily prepared, the content is stable, and the reproducibility in field use is good. The porphin salt exhibits low use concentration, high activity, and high prevention and control effect, and is convenient to use. The porphin salt is made from natural raw materials and derived from rich sources and is free of emission and pollution in preparation and thereby is energy-conservative and environmentally friendly. In particular, as an immune resistance inducer, the prevention and control effect is high, and the use effect is remarkably superior to that of exi