Relationship between Iron-, Manganese-, Zinc- and Copper- Contents in Rice Plant and Its Resistance to the Wilting (Piricularia Oriyzae). (An Epitonic Report)

Abstract

The variation in the iron, manganese, zinc and copper levels in the leaf of rice plant of the susceptible variety was found definitely related to the intensity of susceptibility of the plant to wilting disease. In general, high concentration of those elements strengthen the plant's resistance: the phenomenon was proved not to be dependent on the nitrogen, magnesium, calcium or silica levels in the plant body.