Abstract
Fundamental investigations on the effects of different kinds of fungicide on the chemical composition of rice kernels, Hokuriku No. 14, were made. As to the contents of general constituents of rice kernels, the effects of fungicides were hardly noticed. Copper, one of the main constituents of fungicides, was found in all plots, but quantitative difference among them could not detect. Mercury was unable to determine with spectrum analysis in this test, but Pb, Sn, Mg and Ag were found particularly in the fungicided plots. These metalic elements, which were conjectured to relating with impurities of fungicides, might be presumed to translocate into the rice kernels. The contents of thiamine and riboflavin were remarkably affected by fungicides; thiamine was increased and riboflavin was decreased in fungicided plots.
