Potato Research

, Volume 40, Issue 3, pp 285–295 | Cite as

In vitro bioassays for salinity tolerance screening of potato

  • Yanling Zhang
  • Danielle J. Donnelly
Full Papers


Three in vitro bioassays (single-node cutting, root tip segment and microtuberization) gave similar results in ranking the salinity (NaCl) tolerance of several potato genotypes (Solanum spp.) and were verified by tuber yield criteria in a field lysimeter trial with salinized irrigation water. Salinity stress consistently depressed growth in the single-node cutting and root tip segment bioassays, reduced microtuber yield in the microtuberization bioassay and decreased tuber yield in field lysimeters. The single-node cutting bioassay was simpler to perform than the root tip segment and microtuberization bioassays and did not exclude certain genotypes as did the microtuberization bioassay. The single-node cutting bioassay can be recommended as a substitute for more labour-intensive and costly field assessments of salinity effects of yield.

Additional keywords

lysimeter microtuberization NaCl root tip segment single-node cutting Solanum spp 


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Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • Yanling Zhang
    • 1
  • Danielle J. Donnelly
    • 1
  1. 1.Plant Science Department, Macdonald CampusMcGill University, 21Ste. Anne de BellevueCanada

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