UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 1046 



Contribation from the Bareau of Plant Industry, WM. A. TAYLOR, Chief, 

 in cooperation with the Kansas Agricultural Experiment Station 



Washington, D. C, 



May, 1922 



RUST RESISTANCE 

 IN WINTER- WHEAT VARIETIES 



By 



LEO E. MELCHERS, Plant Pathologist, and JOHN H. PARKER, 



in Charge of Crop Improvement, Kansas Agricultural Experiment 



Station; Agents, Office of Cereal Investigations 



CONTENTS 



■ , Page 



Scope of the Investigation '.. . . 1 



Bevlew of the Literature 2 



Nursery Experiments . 4 



Greenhouse Experiments . . ' 14 



Comparison of Nursery and Greenhouse Results 23 



Evidence of Specific Rust Resistance ......... 24 



Agronomic Value of Eanred Wheat 26 



Summary .27 



Literature Cited 30 



WASHINGTON 



GOVERNMENT PRINTING OFFICK 



1922 



