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Evaluation of frost resistant tuber-bearing solanum hybrids

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Abstract

Frost resistance of interspecific and varietal potato crosses was evaluated at Bogotá, Colombia using intact plants in a programmed low temperature growth cabinet. Plants were exposed to a 2 hour frost during the dark period and the minimum test temperature was successively lowered 1 C on subsequent nights. The foliage was visually scored for damage 10–12 hours after each frost. While most commercial varieties were killed at—2 to—3 C (28 to 26 F), 101 of 121 clones which have been bred specifically for frost resistance survived to at least—5 C (23 F) and some crosses resisted—9 C (16 F) without observable foliar damage. This suggests the possibility of obtaining cultivated varieties from varietal parents of cultivated species such as G. Andigena, G. Phureja, G. Stenotomum,S. ajanhuiri, and others, which are reasonably frost resistant.

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Authors and Affiliations

  1. Department of Horticultural Science, University of Minnesota, 55101, St. Paul, Minnesota

    Daryl G. Richardson (gradute student)

  2. Tuberous Crops Program, ICA, Bogotá, Colombia

    Nelson Estrada Ramos (Geneticist Director)

Authors
  1. Daryl G. Richardson
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  2. Nelson Estrada Ramos
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Additional information

A joint contribution of the Laboratory of Plant Hardiness, Department of Horticultural Science, University of Minnesota, St. Paul, Minnesota 55101 and the Tuberous Crops Program, Department of Agronomy, Instituto Colombiano Agropecuario (ICA), Bogotá, Colombia. Scientific Journal Series article No. 7498 of the Minnesota Agricultural Experiment Station.

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Richardson, D.G., Ramos, N.E. Evaluation of frost resistant tuber-bearing solanum hybrids. American Potato Journal 48, 339–343 (1971). https://doi.org/10.1007/BF02861746

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  • DOI: https://doi.org/10.1007/BF02861746

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