Resistance mechanisms against onion pink root (Pyrenochaeta terrestris), bioassay of inoculum potential in soil and chemical control
By: by Sidney Richard Siemer.
Published: 1968
Language: eng
Number of pages: 136
Subjects: Onions -- Diseases and pests.; Pink-root disease.
Notes: Typescript (photocopy).

Thesis (Ph. D.)--Oregon State University, 1968.

Bibliography: leaves 129-136.