| CYTOLOGIC | Chromosome Number | Laboratory determination of chromosome number. | 28 | | WHEAT.PLOIDY.ABERDEEN | PI 166838 TR02ID SD | Not Available |
| DISEASE | Dwarf Bunt | Reaction to Dwarf Bunt, TCK (causal fungus Tilletia controversa Kuhn), incidence expressed as the number of infected spikes divided by thhe total number of spikes, recorded as a percent of the susceptible check. | 63.0 | | WHEAT.DBUNT.GREENCANYON.05 | PI 166838 TR02ID SD | Not Available |
| DISEASE | Powdery Mildew | Reaction to Powdery Mildew (incited by Erysiphe graminis f.sp. Tritici). Rated at Feekes growth stage GS 10.3. | 6 - 5-15% leaf area affected on second leaf | | WHEAT.PMILDEW.RALEIGH.96 | PI 166838 TR83AZ SD | Not Available |
| DISEASE | Barley Yellow Dwarf Virus UR | Reaction to Barley Yellow Dwarf Virus - Urbana. | 7 - (1 = RESISTANT, 9 = SUSCEPTIBLE) | | WHEAT.BYDV.URBANA.89 | PI 166838 TR83AZ SD | Not Available |
| DISEASE | Stripe Rust Adult Reaction MTV | Reaction to Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Severity. Grown in Mt. Vernon. | 2 - RESISTANT | | WHEAT.STRIPERUST.MTVERNON.87 | PI 166838 TR83AZ SD | Not Available |
| DISEASE | Stripe Rust Adult Reaction PUL | Reaction to Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Severity. Grown in Mt. Vernon. Grown in Pullman. | 0 - RESISTANT, NO SYMPTOMS | | WHEAT.STRIPERUST.PULLMAN.87 | PI 166838 TR83AZ SD | Not Available |
| DISEASE | Stripe Rust Adult Severity MTV | Percent severity or intensity of Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Reaction. Grown in Mt. Vernon. | 1 | | WHEAT.STRIPERUST.MTVERNON.87 | PI 166838 TR83AZ SD | Not Available |
| DISEASE | Stripe Rust Adult Severity PUL | Percent severity or intensity of Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Reaction. Grown in Mt. Vernon. Grown in Pullman. | 0 | | WHEAT.STRIPERUST.PULLMAN.87 | PI 166838 TR83AZ SD | Not Available |
| GROWTH | Growth Habit | Growth habit, based on a spring planting. | F - FACULTATIVE | | WHEAT.HABIT.ABERDEEN.01 | PI 166838 TR83AZ SD | Not Available |
| GROWTH | Plant Height Ratio | Height of the wheat plant from ground to the top of the spike (excluding awns) at maturity. Expressed as a ratio of the check entry. See also related descriptor Plant Height. | 2.063 | | WHEAT.AGRON.MARICOPA.03 | PI 166838 TR83AZ SD | Not Available |
| INSECT | Cereal Leaf Beetle | Reaction to Cereal Leaf Beetle (Oulema melanopus), based on larval feeding damage. | 3 - OVER 40% FOLIAGE EATEN | | WHEAT.CLB.MICHIGAN.63.70 | PI 166838 TR83AZ SD | Not Available |
| INSECT | Hessian Fly Biotype C | Reaction to Hessian fly Biotype C (Mayetiola destructor). | 8 - (1 = RESISTANT, 9 = SUSCEPTIBLE 71-80% S) | | WHEAT.HESSIANFLY.WLAF.87 | PI 166838 TR83AZ SD | Not Available |
| INSECT | Hessian Fly Biotype E | Reaction to Hessian fly Biotype E (Mayetiola destructor). | 8 - (1 = RESISTANT, 9 = SUSCEPTIBLE 71-80% S) | | WHEAT.HESSIANFLY.WLAF.87 | PI 166838 TR83AZ SD | Not Available |
| INSECT | Russian Wheat Aphid Chlorosis1 | Reaction to the Russian Wheat Aphid Biotype 1 (Diuraphis noxia). Amount of chlorosis. See RWA Leafroll descriptor, also. | 9 - PLANT DEATH OR NO RECOVERY POSSIBLE | | WHEAT.RWA.STILLWATER.93 | PI 166838 TR83AZ SD | Not Available |
| INSECT | Russian Wheat Aphid Leafroll1 | Reaction to the Russian Wheat Aphid Biotype 1 (Diuraphis noxia). Leafrolling symptoms. See RWA Chlorosis descriptor, also. | R - LEAVES ROLLED, LOOSELY TO TIGHTLY | | WHEAT.RWA.STILLWATER.93 | PI 166838 TR83AZ SD | Not Available |
| MORPHOLOGY | Spike Density | Visual measure of spike density. | 8 - (1 = LAX, 9 = VERY DENSE) | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Glume Color | Color of the glumes. | 7 - TAN | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Kernel Color | Color of the kernels. | 7 - TAN | | WHEAT.LAB.ABERDEEN.09B | PI 166838 TR02ID SD | Not Available |
| MORPHOLOGY | Awn Color | Color of the awns. | 7 - TAN | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Awn Type | Type and extent of the awns. | 1 - AWNED | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| PHENOLOGY | Days to Flowering | Number of days from January 1 (inclusive) when 50% of the spikes are fully exserted from the boot. Expressed as a ratio of the check entry. See also related descriptor Days to Anthesis. | 1.489 | | WHEAT.AGRON.MARICOPA.03 | PI 166838 TR83AZ SD | Not Available |
| PRODUCTION | 1000 Kernel Weight | Thousand kernel weight, based on a 30ml volume sample size.
| 50.3 | | WHEAT.LAB.ABERDEEN.09B | PI 166838 TR02ID SD | Not Available |