| CYTOLOGIC | Chromosome Number | Laboratory determination of chromosome number. | 42 | | WHEAT.PLOIDY.ABERDEEN | PI 321921 TR05CA SD | Not Available |
| DISEASE | Barley Yellow Dwarf Virus UR | Reaction to Barley Yellow Dwarf Virus - Urbana. | 3 - (1 = RESISTANT, 9 = SUSCEPTIBLE) | | WHEAT.BYDV.URBANA.90 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Common Bunt Multiple | Reaction to Common Bunt Multiple (incited by Tilletia tritici and T. laevis), expressed as a percent of the susceptible check. | 23 | | WHEAT.CBUNT.ABERDEEN.93 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Adult - STPAUL | Reaction to Stem Rust (incited by Puccinia graminis f.sp. tritici) in the adult growth stage in the field. Grown in Rosemount. Grown in St. Paul. | 6 - (0 = RESISTANT, 9 = SUSCEPTIBLE) | | WHEAT.STEMRUST.STPAUL.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling HJCS | Seedling infection types produced by Puccinia graminis f.sp. tritici - HJCS. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling QFBS | Seedling infection types produced by Puccinia graminis f.sp. tritici - QFBS. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling QSHS | Seedling infection types produced by Puccinia graminis f.sp. tritici - QSHS. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling RHRS | Seedling infection types produced by Puccinia graminis f.sp. tritici - RHRS. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling RTQQ | Seedling infection types produced by Puccinia graminis f.sp. tritici - RTQQ. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling TNMH | Seedling infection types produced by Puccinia graminis f.sp. tritici - TNMH. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID SD | Not Available |
| DISEASE | Stem Rust Seedling TNMK | Seedling infection types produced by Puccinia graminis f.sp. tritici - TNMK. | S - VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT | | WHEAT.STEMRUST.GH.88 | PI 321921 TR84ID 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 321921 TR84ID 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 321921 TR84ID 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 321921 TR84ID 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 321921 TR84ID SD | Not Available |
| GROWTH | Growth Habit | Growth habit, based on a spring planting. | S - SPRING | | WHEAT.HABIT.ABERDEEN.00 | PI 321921 TR84ID 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. | 1.818 | | WHEAT.AGRON.MARICOPA.99 | PI 321921 TR84ID SD | Not Available |
| INSECT | Hessian Fly Biotype C | Reaction to Hessian fly Biotype C (Mayetiola destructor). | 3 - (1 = RESISTANT, 9 = SUSCEPTIBLE 11-15% S) | | WHEAT.HESSIANFLY.WLAF.84 | PI 321921 TR84ID SD | Not Available |
| INSECT | Hessian Fly Biotype E | Reaction to Hessian fly Biotype E (Mayetiola destructor). | 9 - SUSCEPTIBLE (81-100% S) | | WHEAT.HESSIANFLY.WLAF.84 | PI 321921 TR84ID SD | Not Available |
| INSECT | Hessian Fly Biotype L | Reaction to Hessian fly Biotype L (Mayetiola destructor). | 9 - SUSCEPTIBLE (81-100% S) | | WHEAT.HESSIANFLY.WLAF.93 | PI 321921 TR84ID 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.89 | PI 321921 TR84ID 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.89 | PI 321921 TR84ID SD | Not Available |
| MORPHOLOGY | Spike Density | Visual measure of spike density. | 3 - (1 = LAX, 9 = VERY DENSE) | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Spike Type | Shape characteristic of typical mature spikes. | 1 - FUSIFORM | | WHEAT.AGRON.ABERDEEN.23 | | Not Available |
| MORPHOLOGY | Glume Pubescence | Type and extent of glume pubescence. | 1 - ABSENT | | WHEAT.AGRON.ABERDEEN.84 | PI 321921 TR84ID SD | Not Available |
| MORPHOLOGY | Leaf Pubescence | Type and extent of leaf pubescence. | 1 - ABSENT | | WHEAT.AGRON.ABERDEEN.84 | PI 321921 TR84ID SD | Not Available |
| MORPHOLOGY | Straw Color | Color of straw at maturity. | 9 - YELLOW | | WHEAT.AGRON.MARICOPA.99 | PI 321921 TR84ID SD | Not Available |
| MORPHOLOGY | Glume Color | Color of the glumes. | 8 - WHITE/AMBER | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Kernel Color | Color of the kernels. | 7 - TAN | | WHEAT.LAB.ABERDEEN.07B | PI 321921 TR05CA SD | Not Available |
| MORPHOLOGY | Awn Color | Color of the awns. | 8 - WHITE/AMBER | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Awn Type | Type and extent of the awns. | 1 - AWNED | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Straw Lodging | Estimated amount of plant lodging near maturity. | 9 - ALL PLANTS FLAT | | WHEAT.AGRON.ABERDEEN.84 | PI 321921 TR84ID SD | Not Available |
| PHENOLOGY | Days to Anthesis | Days from January 1 (Julian) when 50% of the spikes are fully exserted from the boot. See also related descriptor Days to Flowering. | 197 | | WHEAT.AGRON.ABERDEEN.84 | PI 321921 TR84ID SD | 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. | 1.585 | | WHEAT.AGRON.MARICOPA.99 | PI 321921 TR84ID SD | Not Available |
| PRODUCTION | 1000 Kernel Weight | Thousand kernel weight, based on a 30ml volume sample size.
| 40.5 | | WHEAT.LAB.ABERDEEN.07B | PI 321921 TR05CA SD | Not Available |