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Beskrivelse
A. PREVIOUS REVIEWS The review by Sw AMI NATHAN and HOWARD (1953) on 'The Cytology and Genetics of the Potato (Solanum tuberosum) and Related Species' provides a convenient starting place for a consideration of recent advances in our knowledge of the cytology and genetics of potatoes. Taken together with FRUWIRTH (1925) and SWAMI NATHAN and HOWARD (1953), the present compilation should give a comprehensive survey of published work to the middle of 1959. In assembling the data for this review, use has been made of 'Plant Breeding Abstracts,' starting with Volume 22, No. 1 (January, 1952) and ending with Volume 29, No. 4 (October 1959). In these eight volumes of 'Plant Breeding Abstracts' there are about 1,400 ab- stracts in the potato section. However, because many of these ab- stracts are concerned only with potato breeding and variety testing, it has been possible to reduce the number of references in the bibli- ography to just over 600, about 50 of which are not to be found in the potato section of 'Plant Breeding Abstracts. ' It is to be expected in compiling a review of this size that there must be some omissions and mistakes. The author apologises for these, and he would be pleased to be informed of them. B. SYSTEMATICS I.