Hursh, Charles Raymond2016-03-092016-03-091923-05https://hdl.handle.net/11299/178109University of Minnesota Ph.D. dissertation. May 1923. Major: Botany. Advisor: Professor E. C. Stakman. 1 computer file (PDF); 80 pages.enBotanyMorphological and Physiological Studies on the Resistance of Wheat to Puccinia Graminis Tritici (Pers.) Erik. and Henn.Thesis or Dissertation