FACT SHEET
Selection OR880172
Soft White Winter Wheat
PROPOSED NAME: FOOTE
W.E. Kronstad, M.L. Verhoeven, R. Knight, and D. Kelly
Description
Selection OR880172 is a soft white common winter wheat. It is a semi-dwarf with white, stiff straw. The spike is awned, oblong, dense, and nodding. Glumes are glabrous, white, mid long; shoulders narrow, wanting; beaks narrow, acuminate, 2 to 3 mm. Awns are 2 to 7 cm long. The kernels are white, midlong, soft, elliptical with midsize germ and a narrow, shallow crease. The brush is small.
Pedigree and History
Selection OR880172 was developed from a complex cross Heima//Kalyansona/
Bluebird/3/WWP7147, F1 /4/D6301/Heines VII//ERA/3/Buckbuck. The initial single cross was made by International Maize and Wheat Improvement Center scientists in Mexico. Subsequent crosses were carried out at the Hyslop Crop Science Laboratory. Thus, the pedigree of OR880172 represents a combination of winter and spring type parents. The original selection was obtained from F3 head row, which traces back to an individual F2 plant. Additional selections were made in F4 , F5, with phenotypically similar F6 head rows bulked for yield evaluation. Following yield, disease and quality evaluations, head rows were again reselected in 1996 for seed increase. Additional spikes were selected and sent to the crop improvement program at Washington State University for the production of breeders seed.
Area of Adaptation
Selection OR880172 is widely adapted to most winter wheat growing areas in the Pacific Northwest; however, it is superior yield-wise to existing cultivars only in the Willamette Valley and areas where Septoria tritici is a major limiting factor.
Disease Reaction
Selection OR880172 is resistant to Leaf Blotch (Septoria tritici), Mildew (Erysiphe graminis f. sp tritici), Stripe Rust (Puccinia striiformis), Leaf Rust (Puccinia recondita f. sp. tritici), Columbia Basin Foot Rot (Pseudocercosporella herpotrichoides), and Common Bunt (Tilletia caries) and T. foetida) (Table 1).
Agronomic Traits
Data for selected agronomic traits are provided in Table 2. When compared to Stephens and Madsen, Selection OR880172 is similar to Stephens in heading date, taller than either cultivar, slightly weaker strawed, lower phenotypic score on overall appearance, and similar to Stephens in winterhardiness.
Yield Performance
Selection OR880172 has been in Oregon elite yield trials for five years. As seen in Table 3, OR880172 is adapted to the Willamette Valley where it has yielded, on the average, 10 bushels more per acre than Madsen and 38 bushels more than Stephens. It has yielded less than Stephens and Madsen at both the Rugg’s and Moro eastern Oregon sites.
OR880172 has been in the regional nursery grown at experimental sites in Washington, Idaho and Oregon for three years. Data for two years are provided in Table 4. When compared to the check Stephens overall locations, OR880172 in both 1994 and 1995, has yielded slightly less.
For additional yield data, see results from the 1997 Oregon statewide variety trials.
Quality Data
Selection OR880172 is very similar in its overall quality properties to Stephens and Madsen. Despite considerable genotype x environment interactions involving these traits, OR880172 has softer kernels and superior sponge cake volume and sponge cake score. The quality information was provided by the Western Regional Wheat Quality Laboratory located at Pullman, Washington (Table 5).
Table 1. Disease data of OR88172 compared with Stephens and Madsen.
|
Variety |
Septoria |
Foot rot |
Mildew |
Stripe rust |
Leaf rust |
Common bunt |
|
Stephens |
7 |
M |
R |
MR |
MR |
R |
|
Madsen |
4 |
R |
R |
R |
MR |
R |
|
OR880172 |
1 |
M |
R |
R |
MR |
R |
Table 2. Agronomic data for OR880172 compared with Stephens and Madsen.
|
Variety |
Heading Julian date* |
Height cm |
Lodging Corvallis |
Ag. Score |
Winterhardiness (1-5)** |
|
|
4 yr Average |
3 yr Average |
|
|
|
|
Stephens |
139 |
102 |
0 |
2 |
3 |
|
Madsen |
144 |
102 |
0 |
2 |
2 |
|
OR880172 |
140 |
114 |
5 |
3 |
3 |
* Julian date = number of days from January 1
** 1 being the most winter hardy
Table 3. Yield (bu/acre) of OR880172 compared with Stephens and Madsen.
|
Variety |
# of yrs tested |
Rugg’s |
Corvallis |
Moro |
|
Stephens |
5 |
103 |
89 |
89 |
|
Madsen |
5 |
116 |
117 |
84 |
|
OR880172 |
5 |
98 |
127 |
68 |
Table 4. Data from the Western Regional Uniform White Winter Wheat Nursery.
|
Variety |
1994 Bu/ac |
1995 Bu/ac |
|
OR880172 |
94.4 |
98.4 |
|
Stephens |
97.2 |
100.0 |
Table 5. Grain quality, milling quality and end-use quality of OR880172 compared with Stephens and Madsen.
Grain Quality
|
Genotype |
Test weight |
Grain protein |
Grain hardness |
|
OR880172 |
61.5 |
10.8 |
26 |
|
STEPHENS |
60.8 |
10.3 |
34 |
|
LSD |
0.9 |
0.6 |
6.0 |
|
P-VALUE |
0.14 |
0.10 |
0.02 |
|
N |
13.0 |
11.0 |
6.0 |
|
|
|
|
|
|
OR880172 |
60.9 |
10.6 |
25 |
|
MADSEN |
61.1 |
10.7 |
40 |
|
LSD |
0.4 |
0.8 |
3.0 |
|
P-VALUE |
0.38 |
0.63 |
<.01 |
|
N |
7.0 |
7.0 |
5.0 |
Milling and Flour Quality
|
Genotype |
Flour yield |
Flour ash |
Milling score |
Flour protein |
Flour Viscosity |
|
|
OR880172 |
73.5 |
0.36 |
88.0 |
9.0 |
76 |
|
|
STEPHENS |
73.6 |
0.38 |
86.8 |
8.9 |
77 |
|
|
LSD |
0.8 |
0.02 |
2.0 |
0.5 |
44 |
|
|
P-VALUE |
0.86 |
0.06 |
0.23 |
0.51 |
0.90 |
|
|
N |
12 |
12 |
12 |
12 |
2 |
|
|
|
|
|
|
|
|
|
|
OR880172 |
74.1 |
0.37 |
87.7 |
9.1 |
76 |
|
|
MADSEN |
74.9 |
0.38 |
88.9 |
9.2 |
81 |
|
|
LSD |
1.0 |
0.03 |
2.0 |
0.7 |
44 |
|
|
P-VALUE |
0.06 |
0.47 |
0.18 |
0.71 |
0.40 |
|
|
N |
6 |
6 |
6 |
6 |
2 |
|
End-Use Quality
|
Genotype |
Mixograph water absorption |
Cookie diameter |
Top grain score |
Sponge cake volume |
Sponge cake score |
|
OR880172 |
54.1 |
8.7 |
5.5 |
1263 |
72 |
|
STEPHENS |
54.5 |
8.6 |
6.1 |
1219 |
68 |
|
LSD |
1.5 |
0.2 |
1.1 |
52 |
3 |
|
P-VALUE |
0.54 |
0.37 |
0.31 |
0.09 |
0.02 |
|
N |
12 |
12 |
11 |
8 |
8 |
|
|
|
|
|
|
|
|
OR880172 |
54.1 |
8.6 |
5.2 |
1259 |
71 |
|
MADSEN |
54.7 |
8.4 |
5.3 |
1204 |
67 |
|
LSD |
1.7 |
0.3 |
1.7 |
98 |
6 |
|
P-VALUE |
0.38 |
0.27 |
0.80 |
0.19 |
0.13 |
|
N |
6 |
6 |
6 |
5 |
5 |