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Frost resistance among theSolanum species in the ir-1 potato collection

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Summary

Five-hundred eighty-six wild and cultivated introductions representing 82Solanum species maintained in the IR-1 Potato Collection were evaluated in the field for frost resistance following freezing temperatures down to 27 F (−2.8 C). The most resistant introductions were those ofS. acaule, S. chomatophilum, S. commersonii, S. xcurtilobum, S. demissum, andS. sanctae-rosae. Resistance comparable to the best in the tuberbearing species was found in introductions of 2 closely related (nontuberous) species,S. brevidens andS. etuberosum. Seedling families of 102 interspecific crosses also were evaluated. Most of the hybrids involvingS. acaule were resistant to temperatures of 27 F. Some of the recent literature on frost resistance is reviewed and the species reported as resistant are listed according to the most recent taxonomic treatments of the tuber-bearingSolanum species.

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Published with the approval of the Director of the Wisconsin Agricultural Experiment Station.

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Ross, R.W., Rowe, P.R. Frost resistance among theSolanum species in the ir-1 potato collection. American Potato Journal 42, 177–185 (1965). https://doi.org/10.1007/BF02860948

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