Research Faculty of Agriculture;
Hokkaido University;
Sapporo 060-8589;
Japan;
Institute of Crop Science;
National Agriculture and Food Research Organization;
Tsukuba 305-8518;
Japan;
Graduate School of Agricultural and Life Sciences;
The University of Tokyo;
Tokyo 113-8657;
Japan;
College of Resources and Environment;
Southwest University;
Chongqing 400715;
China;
ionomic profile; rice genotype; elemental covariation; correlation; principal component analysis;