Abstract
This paper describes a new source of host-plant resistance to the Colorado Potato Beetle (CPB;Leptinotarsa decemlineata (Say)) in a tetraploid potato (Solanum tuberosum L.) selection, ND2858-1. This hybrid was recorded as a cross betweenS. fendleri ssp.fendleri (A. Gray) and NDSU selection ND1215-1. Field defoliation of this and progeny clones from a subsequent cross to an cultivar was reduced by 50% to 90% in open-choice field screening plots.
Progeny of ND2858-1 are vigorous, with high yield potential, and some clones have tuber glycoalkaloid content equivalent to commercial cultivars. These clones are male and female fertile and may be useful to other potato breeding programs. Further characterization of this resistance source is in progress.
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Lorenzen, J.H., Balbyshev, N.F. ND2858-1: A useful source of resistance to the Colorado potato beetle. American Potato Journal 74, 331–335 (1997). https://doi.org/10.1007/BF02851577
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DOI: https://doi.org/10.1007/BF02851577