Fig. 8

Setup of inoculation experiment. a Block of the experiment with plastic sheet covers to provide high humidity. b Plants within a block during the darkness phase of infection. c Severity symptoms ranging from hypersensitive reactions causing pale yellowish spots (left) to high susceptibility with chlorotic lesions covering the whole leaf (right) d Leaf of tolerant Puno control variety showing chlorotic lesions but no sporulation. e Leaf of Cultivar 21 (Mañiqueña) with signs of sporulation