Summary
Early scab resistant diploid derivatives ofS. chacoense have been obtained from crosses of that species withS. phureja. Although high in solanine content the selections otherwise resembled early forms ofS. phureja. The inheritance of resistance is apparently complex. Tetraploid clones were produced by colchicine treatment, as a preliminary step to transferring this source of resistance toS. tuberosum.
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Literature Cited
Livermore, J. R. and F. E. Johnstone. 1940 The effect of chromosome doubling on the crossability ofS. chacoense, S. jamesii andS. bulbocastanum withS. tuberosum. Am. Potato J. 17:170–173.
Reddick, D. 1939. Scab immunity. Am. Potato J. 16:71–76.
Additional information
Contribution No. 34, Research Station, Canada Department of Agriculture, Fredericton, New Brunswick.
Potato Breeding Section. Acknowledgment is gratefully made to Dr. J. W. McAllan of the station staff, who made the chemical analyses for solanine content.
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Dionne, L.A., Lawrence, C.H. Early scab resistant derivatives ofSolanum chacoense xSolanum phureja . American Potato Journal 38, 6–8 (1961). https://doi.org/10.1007/BF02861946
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DOI: https://doi.org/10.1007/BF02861946