Abstract
The highest spore production ofStemphylium botryosum f. sp.lycopersici on tomato leaves during a 24-h wetting period occurred in continuous darkness, and ofAlternaria porri f. sp.solani on potato leaves in a 12-h dark period which had been preceded by a 12-h light period. Sporulation of both pathogens was inhibited by illumination during the entire wetting period or during the last 12 h of it. In inhibitory conditions spore yield increased with a decrease in the incubation temperature and as tested withA. porri f. sp. solani, also with lowered light intensity.
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Bashi, E., Rotem, J. Effect of light on sporulation ofalternaria porri f. sp.solani and ofstemphylium botr yosum f. sp.lycopersici in vivo . Phytoparasitica 3, 63–67 (1975). https://doi.org/10.1007/BF02981223
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DOI: https://doi.org/10.1007/BF02981223