H APLOIDS (2nzz24) of the common potato (2n = 48) provide promising material for attacking many problems concerned with genetics, cytology, and breeding of this species (3). Large numbers of haploids from a wide range of Solanum tuberosum L. selections are essential if their potential is to be explored. Though numerous haploids have been obtained follow

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Species crosses, polyploidy manipulations, induced mutation, and the refinement and use of biological systems, such as male sterility, also led to enhanced germplasm.

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