UNITED STATES DEPARTMENT OF AGRICULTURE AGRICULTURAL RESEARCH SERVICE in cooperation with STATE AGRICULTURAL EXPERIMENT STATIONS Wheat Varieties Grown in Cooperative Plot and Nursery Experiments in the Spring Wheat Region in 1975 Hard Red Spring and Sawfly Wheat Results Compiled by: R. E. Heiner, Research Geneticist and Technical Advisor(TA) for Spring Wheat F. A. Elsayed, Assistant Scientist This is a joint progress report of cooperative investigations underway in the State Agricultural Experiment Stations and the Agricultural Research Service of the U.S. Department of Agriculture containing preliminary data which have not been sufficiently confirmed to justify general release; interpretations may be modified with additional experimentation. Confirmed results will be published through established channels. The report is primarily a tool for use of cooperators and their official staffs and for those persons having direct and special interest in the development of agricultural research programs. This report includes data furnished by the State Agricultural Experiment Stations as well as by the Agricultural Research Service and was compiled by the Agricultural Research Service, U. S. Department of Agriculture. This report is not intended for publication and should not be referred to in literature citations nor quoted in publicity or advertising: Use of the data may be granted for certain purposes upon written request to the agency or agencies involved. St. Paul, Minnesota TABLE OF CONTENTS Page Cooperating Agencies, Stations, and Personnel ---------------------- 1 The 1975 Crop ------------------------------------------------------ 5 The Uniform Regional Hard Red Spring Wheat Nursery ----------------- 8 Table 1, Parts 1-21. Agronomic data ------------------------------- 10 Table 2, Average yields and bushel weights in 1975 and for the three-year period 1973-75 ------------------------------- 31 Table 3, Average of miscellaneous agronomic and disease reaction data ---------------------------------- 32 Table 4, Part 1. Seedling reaction to stem rust ------------------ 33 Part 2. Adult plant field reaction to stem rust --------- 34 Part 3. Adult plant field reaction to leaf rust ---------- 36