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Not AvailableResults revealed that the RAPD markers are effective for the determination of genetic purity of tomato hybrid seeds. From the seed lots of both the hybrids (NTH-1 and NTH-7), hybrid crops comprising 100 plants were raised as a part of the routine evaluation process. There was no contamination in hybrid seed lots because based on morphological features, all the 100 plants of each hybrid were judged to be true hybrids. Although non-reproducibility is considered to be one of the major drawbacks in using RAPD markers, in this study, case specific utilization of RAPD markers in practical plant breeding has been demonstrated for genetic purity testing of two potential tomato hybrids. The usefulness and potential of RAPD markers for purity testing of hybrid seeds have also been demonstrated in tomato and in several other vegetable crops like pepper, watermelon, cauliflower, cabbage, Chinese cabbage and broccoli.Not Availabl