Studies on physiologic specialization in Puccinia triticina
By: by C.O. Johnston and E.B. Mains.
Contributors: Mains, Edwin B. 1890-; United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 313; Technical bulletin (United States. Dept. of Agriculture) -- no. 313.
Publisher: U.S. Dept. of Agriculture
Published: 1932
Place of publication: Washington
Language: eng
Number of pages: 23
Subjects: Leaf rust of wheat.
Notes: Caption title.

Literature cited: p. 21-22.