Resistance to Pseudomonas solanacearum in the potato: II. Aspects of host-pathogen-environment interaction

Abstract

Host-pathogen-environment interaction in the potato-P. solanacearum pathogenic system was investigated by testing eight true potato seed progenies and four clones for resistance to three potato isolates of P. solanacearum under two temperature regimes. Highly significant interactions of all types: progeny x isolate, isolate x temperature, progeny x temperature, and progeny x isolate x temperature were observed. Changes in pathogenicity of isolates with temperature were the major source of the total variation. Host-pathogen interaction effect was small as compared to the main (progeny, isolate) effects. Aspects of strain specificity and host-pathogen interaction are discussed. © 1990 Kluwer Academic Publishers.

Source or Periodical Title

Euphytica

ISSN

142336

Page

211-215

Document Type

Article

Subject

adaptation, bacterial wilt, polygenes, polygenic resistance, potato, Pseudomonas solanacearum, Solanum tuberosum, stability of resistance, strain specificity, true pottato seed (TPS)

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