What did J. H. Cragie study?

A. Streak plate technique

B. Soil solarization

C. Sex in rust fungi

D. Hyphal fusion

Answer: Option C

Solution(By Examveda Team)

J. H. Cragie studied Sex in rust fungi.
John Hubert Craigie was a Canadian plant pathologist. He is known for his "research and development of rust-resistant cereals which have been of vital significance to Canada as a cereal producing nation.
In 1930, he received a Ph.D. from the University of Manitoba. In 1926, he published "Discovery of the Function of the Pycnia of the Rust Fungi.