2001 Septoria IPM* spray trial grown at Hyslop Farm, Corvallis, Oregon
Variety or Market Yield Test wt. Protein KWT4 Height Heading line1 class2 (bu/a)3 (lb/bu) (%) (grams) (inch) (doy)5 Bogo-Control Trit 164 56.3 9.6 41.1 46 135 Bogo-Flag Trit 159 56.3 9.1 40.5 48 135 Bogo-Head Trit 162 56.9 9.6 41.2 46 135 Foote-Control SW 159 60.2 8.5 48.6 46 140 Foote-Flag SW 162 59.7 8.6 49.4 48 140 Foote-Head SW 148 60.0 8.6 51.1 51 140 Madsen-Control SW 136 59.8 8.6 40.1 48 142 Madsen-Flag SW 147 61.4 8.5 42.6 47 141 Madsen-Head SW 144 60.6 8.6 42.6 46 141 Stephens-Control SW 143 60.6 8.6 50.1 43 139 Stephens-Flag SW 156 61.1 8.3 52.6 53 139 Stephens-Head SW 149 59.7 8.7 49.7 47 139 Trial Mean 153 59.3 8.7 45.8 47 139 CV 8.9 1.2 2.9 3.6 6.9 0.2 PLSD (0.05) Entry 13 0.7 0.3 1.6 ns 0.3 PLSD (0.10) Entry ns 0.5 0.2 1.4 ns 0.2 Pr>F Entry 0.03 <0.00 <0.00 <0.00 0.70 <0.00 Pr>F Treatment 0.57 0.34 0.13 0.12 0.09 0.3 Pr>F E X T 0.75 0.08 0.42 0.20 0.06 0.2
1 All seed was treated with fungicide and insecticide (gaucho) unless otherwise noted.
Seeding rate was 30 seeds per sq. ft. 2 SW = soft white, Trit = triticale, ns = non significant. 3 Adjusted to 10% moisture, 60 lb per bu. 4 Weight of 1000 kernels. 5 Julian date.
* Plots were sprayed with fungicide at Flag leaf emergence, heading or left untreated in control plots. Leaf samples (30 randomly collected leaves) were collected before application and lesions counted to determine if a spray would be necessary (25% of leaves with Pycnidia in order to spray). During this season leaf samples indicated no need to spray at flag leaf or heading. Results confirm that during this season at Hyslop farm a fungicide spray to control Septoria would not significantly increase grain yield.