Effect of ridge gourd pollen on zoospore germination ofPseudoperonospora cubensis and its significance in epidemiology
Amarnatha Shetty H S Shetty K M Safeeulla
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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.
Amarnatha Shetty1 H S Shetty1 K M Safeeulla1
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