PROBLEM TO BE SOLVED: To provide a method for suppressing germination of a plant solely suppressed in the germination of the plant and normally growing after the germination by paying attention to a function of peroxisome of the plant, and a new plant solely suppressed in germination. SOLUTION: The plant in which a gene for coding a protein transport factor Pex7p is defected and the method for preparing the same are claimed. The method is to suppress germination of the plant in a medium containing no saccharose by bringing the plant to be defected in the gene for coding the protein transport factor Pex7p. COPYRIGHT: (C)2006,JPO&NCIPI