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General Resistance Over Time of Six
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adaptation Am.Pot.J analysis of variance artificial epidemic assessments Bary Bintje chambers clones compared conducted Cornell University cultivar resistance cultivar*isolate interaction detected different environments different potato cultivars disease component disease expression disease progress curves endemic epidemics in Toluca Experiment expression of resistance factors field environments field resistance ft-c greenhouse incubation period infection frequency inoculation inoculum isolates of Phytophthora late blight disease late blight epidemics LATE BLIGHT PATHOSYSTEM leaf area infected lesion area lesion expansion rates light treatments long days LXR's Mean areas mean lesion mean temperature measured Mexico and Freeville moisture Niederhauser osmocote Partial resistance pathogen isolates pathogen population peroxidase petri plates photoperiod Phytopathology Phytophthora infestans Mont plants potato blight potato late blight potato leaves progress curves AUDPC's race relative humidity resistance expression resistance to late resistance to Phytophthora Sebago short days significant sporangia spores sporulation stable susceptible TABLE tested Thurston treatment means Umaerus zoospores