wo trials were conducted by the
Trial 1 was an irrigated trial conducted at Carrington with 'Granger', ‘Reeder’, and an experimental HRS wheat line planted on 2003 corn ground (with supplemental wheat straw) at 1 and 1.75 million pure live seeds (pls)/acre (A) on May 17. Folicur at 4 fl oz/A + NIS (Induce) at 0.125% v/v was applied in mid July to early-flowering stage (Feekes 10.51) wheat with a hand-boom plot sprayer equipped with 8002 twin jet nozzles delivering 16 gpa at 40 psi. Flag leaf disease (tan spot and Septoria spp.), leaf rust, and Fusarium head blight (scab) were visually evaluated at the soft-dough stage. The seeding rate of 1 and 1.75 million pls/A established 927,000 and 1,387,000 seedling plants/A, respectively. Seed yield and test weight were slightly higher with the lower seeding rate (Table 1). Scab incidence was 7.5% and vomitoxin was 1.6% with Folicur compared to the untreated check having 23.5% scab incidence and 2.9% vomitoxin (Table 2). Folicur also reduced flag leaf disease and leaf rust. Compared to the untreated check, Folicur improved yield by 10.7 bu/A and test weight by 1.1 lb/bu. Vomitoxin, leaf disease, and leaf rust reduction with Folicur was greater with Reeder compared to Granger (Table 3). Folicur improved yield 18.6 bu/A with Reeder compared to the untreated check while yield increase with Granger was 8.0 bu/A. In addition, use of Folicur provided a greater test weight and kernel weight response with Reeder compared to Granger.
Trial 2 was conducted near Dazey,
ND, as part of the
CREC spring wheat off-station variety trial near Dazey, ND.