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Seed transmission of maize chlorotic mottle virus.


Seed maize produced in commercial nurseries in Hawaii was harvested from symptomatic plants naturally infected by MCMV. In Nebraska greenhouse studies, the seeds were planted and 14 day-old seedlings were assayed for MCMV. Seed transmission was found by ELISA and confirmed by symptomatology and mechanical transmission in 17 of 42 000 plants from 25 seed lots submitted by 3 seed companies. Some of the factors relating to seed transmission were tested.