A5085703331- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Plant Pathogens and Fungal Diseases
- Potato Plant Research
- Yeasts and Rust Fungi Studies
- Nematode management and characterization studies
- Agriculture, Plant Science, Crop Management
- Genetics and Plant Breeding
- Plant Ecology and Soil Science
Pontificia Universidad Católica del Ecuador
2022
ABSTRACT The metapopulation structure of Phytophthora infestans sensu lato is genetically diverse in the highlands Ecuador. Previous reports documented diversity associated with four putative clonal lineages pathogen collected from various hosts genus Solanum. This paper simultaneously analyzes complete collection isolates, including a large number that had not yet been reported. analysis confirmed existence three populations, which all appear to be lineages, and correspond those previously...
Ten institutions in nine countries joined together to test the stability of resistance 14 potato genotypes oomycete pathogen Phytophthora infestans three separate trials. Seven were tested one trial involving seven locations, and all two subsequent trials, each eight locations. Stability was with nonparametric tests an additive main effects multiplicative interaction (AMMI) model. Overall, P. robust; resistant consistently locations The analysis indicated that specific basically stable...
ABSTRACT The concept of model qualification, i.e., discovering the domain over which a validated may be properly used, was illustrated with LATEBLIGHT, mathematical that simulates effect weather, host growth and resistance, fungicide use on asexual development Phytophthora infestans potato foliage. Late blight epidemics from Ecuador, Mexico, Israel, United States involving 13 cultivars (32 in total) were compared predictions using graphical statistical tests. Fungicides not applied any...
The aggressiveness of four Phytophthora infestans isolates collected from wild and cultivated potato species (sect. Petota ) the level resistance nine were assessed in highland tropics Ecuador. For this, P. inoculated on whole plants field net house six epidemiological components – infection frequency (IF), incubation period (IP), latent (LP), lesion size (LS), growth rate (LGR), relative area under expansion curve (RAULEC) measured during a single cycle. Additionally, host specificity was...