RESULTS OF SPRING WHEAT VARIETIES GROWN IN COOPERATIVE PLOT AND NURSERY EXPERIMENTS IN THE SPRING WHEAT REGION IN 1983 The year 1983 was the 55TH in the history of the uniform regional testing program. Data summarized in this report were obtained from (1) the uniform regional hard red spring nursery. NEW VARIETIES Hard Red Spring Wheat Apex (VRP-8-30) Awned, early, semidwarf with moderate lodging resistance Moderately resistant to stem rust and resistant to leaf rust. High yield and test weight. Medium to low percent protein. Released by Western Plant Breeders in 1983. Challenger - (WRP-8-1) Awned, early, semidwarf with moderate lodging resistance. Moderately resistant to stem rust and resistant to leaf rust. High yield and test weight. Medium to low percent protein. Released by Western Plant Breeders in 1983. Erik - (HS79304) Awned, late to midseason, semidwarf with good lodging resistance. Moderately resistant to stem and leaf rust. High yield and low test weight. Medium to low percent protein. Released by North American Plant Breeders in 1983. Guard - (C.I. 17934, SD 8015). Awned, early, semidwarf with good lodging resistance. Moderately resistant to stem and resistant to leaf rust. Resistant to Hessian fly. High yield and test weight. Medium protein percent. Released by South Dakota Agricultural Experiment Station in 1983. Wheaton - (P.I. 469271, MN73168) Awned, midseason, semidwarf with medium lodging resistance. Resistant to stem and leaf rust. Very high yield and low test weight. Low protein percent. Released by Minnesota Agricultural Experiment Station and USDA-ARS in 1983. 2369 - Awned, midseason, semidwarf with moderate lodging resistance. Moderately resistant to stem rust and susceptible to leaf rust. High yield and test weight. Medium to low protein percent. Released by Pioneer Hi-Bred in 1983.