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The Diurnal Cycle of the Powdery Mildew Erysiphe polygoni


Author:
Yarwood, Cecil E.
Source:
USDA
Year:
1936
Format:
p. 645-657.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43968863