| DISEASE | Anthracnose | Percent of plants resistant to Anthracnose (Colletotrichum trifolii). | 0.78 | | ALFALFA.ANTHRAC.83.ELGIN | PI 399541 79i SD | |
| DISEASE | Bacterial wilt | Percent of plants resistant to Bacterial wilt. (Corynebacterium insidiosum). | 0 | | ALFALFA.BACTWILT.89.BARNES | PI 399541 79i SD | |
| 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 | 3.75 | | ALFALFA.SPRBLSTEM.83.LEATH | PI 399541 79i SD | |
| DISEASE | Common leaf spot | Percent of plants resistant to Common Leaf spot (Pseudopeziza medicaginis). | 3.36 | | ALFALFA.LEAFSPOT.83.LEATH | PI 399541 79i SD | |
| DISEASE | Verticillium wilt | Percent of plants resistant to Verticillium wilt (Verticillium albo-atrum). | 4 | | ALFALFA.VERTWILT.85.PEADEN | PI 399541 79i SD | |
| DISEASE | Fusarium wilt | Percent of plants resistant to Fusarium wilt (Fusarium oxysporum). | 15.76 | | ALFALFA.FUSWILT.86.BARNES | PI 399541 79i SD | |
| DISEASE | Lepto spot | Percent of plants resistant to Lepto Spot (Leptosphaerulina briosiana). | 3.86 | | ALFALFA.LEPTOSPOT.83.LEATH | PI 399541 79i SD | |
| DISEASE | Downy mildew | Percent of plants resistant to Downy mildew (Peronospora trifoliorum). | 14.2 | | ALFALFA.DOWNYMILD.I7.83.STUT | PI 399541 79i SD | |
| DISEASE | Downy mildew | Percent of plants resistant to Downy mildew (Peronospora trifoliorum). | 36.8 | | ALFALFA.DOWNYMILD.I8.83.STUT | PI 399541 79i SD | |
| 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 | 4.25 | | ALFALFA.STEMPHLFSP.83.LEATH | PI 399541 79i SD | |
| DISEASE | Aphanomyces | Percent resistant plants to Aphanomyces eutieches. | 2.3 | | ALFALFA.APHAN.88.GRAU | PI 399541 79i SD | |
| INSECT | Pea Aphid | Percent of seedling survival after pea aphid damage. (Acrythosiphon pisum). | 2.7 | | ALFALFA.PEAAPHID.85.MANG | PI 399541 79i SD | |
| INSECT | Spotted Alfalfa Aphid | Percent of seedling survival after Spotted Alfalfa aphid damage (Therioaphis maculata). | 0 | | ALFALFA.SPOTALFAPH.85.MANG | PI 399541 79i SD | |
| INSECT | Blue aphid | Percent of seedling survival after Blue aphid damage. (Acyrthosiphon kondoi). | 4.33 | | ALFALFA.BLUEAPHID.86.CADDEL | PI 399541 79i SD | |
| STRESS | Salt germination - ic(50) valu | Sodium chloride concentration which inhibits germination of 50% of the viable seed. | -0.63 | | ALFALFA.SALTGERM.88.RUMB | PI 399541 79i SD | |