Ca2+ and ethylene are essential to the plant, and they regulated many physiological/biochemical activities together in plant, especially for the ripening and senescence of fruit and vegetable. As a result, the relationship between Ca2+ and ethylene was focused by postharvest researchers. The intact fruit, pericarp discs and etiolated seedling of tomato were used as material, and the method of culturing iomaio pericarp in vitro was taken in the paper, to carried out the experiments on the followin...