Germination performance of tomato (Lycopersicon esculdntum Mill. cv.Moneymaker) seeds was improved by osmopriming, and was not affected by hydropriming, or even badly hurt by over-long period. Morphological changes in tomato seed during osmopriming and hydropriming were followed using X-ray photogrphs upon redrying.Embryo, endosperm and free space areas were measured. Both osmopriming andhydopriming resulted in free space development, almost all at the cost of the endospermarea. The visible hurt on the radicle which might lead to abnormal seedling often occurredupon dehydration when the embryo...
