CHIPS 38 Geographic distribution Early blight is widespread in most areas where potatoes or tomatoes are grown, but is especially prevalent in the tropics and temperate zones. The disease is a potential threat where potatoes are grown under irrigation or during times of heavy dew. Early blight is prevalent in all provinces in South Africa and is a limiting factor in production in late summer. E...

in order to determine the resistance levels and the most suitable potato genotypes to the early blight, an experiment was conducted in a completely randomized factorial design with three replications, in national plant gene bank of iran during 2007-2008. factors included pathogenic fungus, a. tenuissima and a. alternata and six potato genotypes, picasso, marfona, delta, agria, cosmos and armida...

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Early blight of tomato (Solanum lycopersicon L.) incited by Alternaria solani is highly destructive disease in the world. Environmental factors significantly impact early epidemics, leading to loss up 78 per cent production. Twenty genotypes were used this study identify resistant and susceptible selected represent a range reactions when screened under field conditions. The plants evaluated for...