Method for improving germination ratio of triploid seedless watermelon seeds

The invention relates to a method for improving germination ratio of triploid seedless watermelon seeds. The technical scheme of the method comprises the steps of: processing seeds by preprocessing solution; hydrating in an imbibition way for 2-10h; cleaning residual solution on seed coats by water; draining moisture on the surface of the seed coats; and cultivating and germinating. The preprocessing solution is 0.5%-3% (quality/volume) calper calcium peroxide and 1%-5% (volume/volume) hydrogen peroxide solution.