5. Tunicate.

The work on South American Tunicate is practically concluded. There seems to be no essential difference, either genetically or in phenotypic variability, between pod corn from S�o Paulo, Minas Gerais or Bolivia. There cannot be any doubt, as far as the seed formation in the tassel is concerned, that there is no difference between homozygous and heterozygous pod corn. Thus, there should not exist any difficulty in maintaining homozygous pod corn through the seeds in the tassel, without the necessity of using in addition a tassel seed factor.