• Effect of ridge gourd pollen on zoospore germination ofPseudoperonospora cubensis and its significance in epidemiology

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    • Keywords


      Pseudoperonospora cubensis ; ridge gourd; pollen effect; zoospore germination; epidemiology

    • Abstract


      Ridge gourd pollen has a stimulatory effect on the germination ofPseudoperonospora cubensis. The rate and percentage germination of zoospores increased in the presence of pollen leachates. Spraying of leaves with a mixture of pollen and sporangial suspension enhanced the development of lesions. Early germination of zoospores in the presence of pollen proved advantageous for infection as it provided a prolonged favourable infection period. The results are discussed in relation to the epiphytoties of the disease during flowering period.

    • Author Affiliations


      Amarnatha Shetty1 H S Shetty1 K M Safeeulla1

      1. Downy Mildew Research Laboratory, University of Mysore, Mysore - 570 006, India
    • Dates


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