| DISEASE | Anthracnose | Percent of plants resistant to Anthracnose (Colletotrichum trifolii). | 21.66 | | ALFALFA.ANTHRAC.83.ELGIN | PI 227851 79i SD | Not Available |
| DISEASE | Bacterial wilt | Percent of plants resistant to Bacterial wilt. (Corynebacterium insidiosum). | 5.63 | | ALFALFA.BACTWILT.89.BARNES | PI 227851 79i SD | Not Available |
| DISEASE | Spring Black Stem | Disease reaction/rating to Spring Black Stem (Phoma medicaginis) using the Standard Test 1-5 rating scale. Data was taken on a 1 to 5 scale.
1 = Resistant : Healthy, symptom-free top growth
2 = Resistant : Small (<2mm), brown or black lesions or flecks; no defoliation
3 = Susceptible : Larger (2 to 3mm),disrete lesions; lesions may be on leaves and petioles; usually no chlorosis or defoliation
4 = Susceptible : Large (>3mm) lesions; no defoliation;petiole lesions
5 = Susceptible : Lesions > 3mm, fruiting; dead leaves or defoliation | 3.45 | | ALFALFA.SPRBLSTEM.83.LEATH | PI 227851 79i SD | Not Available |
| DISEASE | Phytophthora root rot | Percent of plants resistant to Phytophthora Root rot (Phytophthora megasperma). | 4 | | ALFALFA.PHYROOTROT.89.NYGAARD | PI 227851 79i SD | Not Available |
| DISEASE | Common leaf spot | Percent of plants resistant to Common Leaf spot (Pseudopeziza medicaginis). | 4.33 | | ALFALFA.LEAFSPOT.83.LEATH | PI 227851 79i SD | Not Available |
| DISEASE | Verticillium wilt | Percent of plants resistant to Verticillium wilt (Verticillium albo-atrum). | 12 | | ALFALFA.VERTWILT.84.PEADEN | PI 227851 79i SD | Not Available |
| DISEASE | Fusarium wilt | Percent of plants resistant to Fusarium wilt (Fusarium oxysporum). | 30.85 | | ALFALFA.FUSWILT.85.BARNES | PI 227851 79i SD | Not Available |
| DISEASE | Lepto spot | Percent of plants resistant to Lepto Spot (Leptosphaerulina briosiana). | 3.88 | | ALFALFA.LEPTOSPOT.83.LEATH | PI 227851 79i SD | Not Available |
| DISEASE | Downy mildew | Percent of plants resistant to Downy mildew (Peronospora trifoliorum). | 0 | | ALFALFA.DOWNYMILD.I7.83.STUT | PI 227851 79i SD | Not Available |
| DISEASE | Downy mildew | Percent of plants resistant to Downy mildew (Peronospora trifoliorum). | 0 | | ALFALFA.DOWNYMILD.I8.83.STUT | PI 227851 79i SD | Not Available |
| DISEASE | Stemphylium Leaf spot | Disease reaction/rating to Stemphylium Leaf Spot (Stemphylium botryosum) using the Standard Test 1-5 rating scale. Data was taken on a 1 to 5 scale.
1 = Resistant : Healthy, symptom-free top growth
2 = Resistant : Small (<1mm) brown or black lesions or pepper spots; no defoliation
3 = Susceptible : Larger (1 to 3mm), discreet lesions with necrotic centers; usually no chlorosis or defoliation
4 = Susceptible : Larger (>3mm), target-type lesions or necrotic areas; may have petiole lesions
5 = Susceptible : Lesions > 3mm, chlorosis, defoliation | 4.44 | | ALFALFA.STEMPHLFSP.83.LEATH | PI 227851 79i SD | Not Available |
| DISEASE | Aphanomyces | Percent resistant plants to Aphanomyces eutieches. | 4.4 | | ALFALFA.APHAN.88.GRAU | PI 227851 79i SD | Not Available |
| DISEASE | Resistance to Rhizoctonia | Percent resistance to Rhizoctonia. | 32.78 | | ALFALFA.RHIZOC.89.VIAND | PI 227851 79i SD | Not Available |
| INSECT | Pea Aphid | Percent of seedling survival after pea aphid damage. (Acrythosiphon pisum). | 0 | | ALFALFA.PEAAPHID.87.MANG | PI 227851 79i SD | Not Available |
| INSECT | Potato Leafhopper | Percent of plant foliage yellowed by Potato Leafhopper (Empoasca fabae). | 1.1 | | ALFALFA.POTLEAFHOP.85.BYERS | PI 227851 79i SD | Not Available |
| INSECT | Spotted Alfalfa Aphid | Percent of seedling survival after Spotted Alfalfa aphid damage (Therioaphis maculata). | 0 | | ALFALFA.SPOTALFAPH.87.MANG | PI 227851 79i SD | Not Available |
| INSECT | Blue aphid | Percent of seedling survival after Blue aphid damage. (Acyrthosiphon kondoi). | 2.49 | | ALFALFA.BLUEAPHID.85.CADDEL | PI 227851 79i SD | Not Available |
| MORPHOLOGY | Seed weight 100 | Weight of 100 seeds in grams. | 0.19 | | ALFALFA.SEEDWEIGHT.WRPIS | PI 227851 79i SD | Not Available |
| STRESS | Salt germination - ic(50) valu | Sodium chloride concentration which inhibits germination of 50% of the viable seed. | -0.38 | | ALFALFA.SALTGERM.88.RUMB | PI 227851 79i SD | Not Available |
| STRESS | Acid soil tolerance | Ratio of root dry weight below 1 inch in acid soil to root dry weight below 1 inch in lime soil. Data is compared to an acid tolerant check. | 1.05 | | ALFALFA.ACIDSOIL.92.BOUTON | PI 227851 79i SD | Not Available |