American Potato Journal

, Volume 36, Issue 11, pp 381–385 | Cite as

A technique for evaluating the ability of selections to yield consistently in different locations or seasons

  • R. L. Plaisted
  • L. C. Peterson


Varieties differ in their ability to produce a, dependable crop. In New York experience has shown Katahdin and Cobbler to be favorable in this respect, whereas Green Mountain has a reputation of being variable

Yield data over locations were analysed in all possible combinations of pairs of varieties. Estimates of the variety × location component of variance were obtained for each of these analyses. The average of these components for all combinations having a variety in common was defined to be the relative contribution by that variety to the variety × location interaction. In four of five analyses, Green Mountain had the highest relative contribution to the variety × location interaction, and Cobbler and Katahdin had a low contribution.


AMERICAN Potato Journal Location Interaction Potato Variety Replication Number Standard Variety 
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Literature Cited

  1. 1.
    Akeley, Robert V. 1958. Evaluation of potato varieties. Amer. Potato Jour. 35: 517–525.CrossRefGoogle Scholar
  2. 2.
    Horner, T. W., and K. J. Frey. 1957. Methods for determining natural areas for oat varietal recommendations. Agron. Jour. 49: 313–315.CrossRefGoogle Scholar

Copyright information

© Springer 1959

Authors and Affiliations

  • R. L. Plaisted
    • 1
  • L. C. Peterson
    • 1
  1. 1.Cornell UniversityIthaca

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