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Factors affecting sporangial production in Phytophthora parasitica var. nicotianae


, : Factors affecting sporangial production in Phytophthora parasitica var. nicotianae. Abs. in J. Elisha Mitchell sci. Soc, 74: 2, 86 p

Of 7 solutions tested, 1/100 m KN03 induced max. sporulation on potentially sporulating mycelium of P. parasitica var. nicotianae stripped from oatmeal agar plates, wetted, and incubated for 6 or more days at 24 degrees C.; the min. was in double distilled water. Air appeared to be necessary but not light. The cardinal temps, for motility and germination of zoospores were 8, 20, and 32 degrees.

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