| DISEASE | Bacterial wilt | Percent of plants resistant to Bacterial wilt. (Corynebacterium insidiosum). | 16.05 | | ALFALFA.BACTWILT.89.BARNES | PI 204590 83i 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 | 4.71 | | ALFALFA.SPRBLSTEM.89.LEATH | PI 204590 83i SD | |
| DISEASE | Phytophthora root rot | Percent of plants resistant to Phytophthora Root rot (Phytophthora megasperma). | 0 | | ALFALFA.PHYROOTROT.89.MCCASLIN | PI 204590 83i SD | |
| DISEASE | Common leaf spot | Percent of plants resistant to Common Leaf spot (Pseudopeziza medicaginis). | 3.78 | | ALFALFA.LEAFSPOT.89.LEATH | PI 204590 83i SD | |
| DISEASE | Verticillium wilt | Percent of plants resistant to Verticillium wilt (Verticillium albo-atrum). | 9 | | ALFALFA.VERTWILT.87.PEADEN | PI 204590 83i SD | |
| DISEASE | Fusarium wilt | Percent of plants resistant to Fusarium wilt (Fusarium oxysporum). | 38.65 | | ALFALFA.FUSWILT.86.BARNES | PI 204590 83i SD | |
| DISEASE | Lepto spot | Percent of plants resistant to Lepto Spot (Leptosphaerulina briosiana). | 3.68 | | ALFALFA.LEPTOSPOT.89.LEATH | PI 204590 83i SD | |
| DISEASE | Downy mildew | Percent of plants resistant to Downy mildew (Peronospora trifoliorum). | 0.6 | | ALFALFA.DOWNYMILD.I8.85.STUT | PI 204590 83i SD | |
| DISEASE | Downy mildew | Percent of plants resistant to Downy mildew (Peronospora trifoliorum). | 0.9 | | ALFALFA.DOWNYMILD.I7.85.STUT | PI 204590 83i 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 | 4.62 | | ALFALFA.STEMPHLFSP.89.LEATH | PI 204590 83i SD | |
| DISEASE | Aphanomyces | Percent resistant plants to Aphanomyces eutieches. | 0 | | ALFALFA.APHAN.89.GRAU | PI 204590 83i SD | |
| DISEASE | Sclerotinia resistance | Percent resistant plants to Sclerotinia. | 10 | | ALFALFA.SCLEROT.89.RHODES | PI 204590 83i SD | |
| INSECT | Pea Aphid | Percent of seedling survival after pea aphid damage. (Acrythosiphon pisum). | 0 | | ALFALFA.PEAAPHID.86.MANG | PI 204590 83i SD | |
| INSECT | Potato Leafhopper | Percent of plant foliage yellowed by Potato Leafhopper (Empoasca fabae). | 4.5 | | ALFALFA.POTLEAFHOP.89.BYERS | PI 204590 83i SD | |
| INSECT | Spotted Alfalfa Aphid | Percent of seedling survival after Spotted Alfalfa aphid damage (Therioaphis maculata). | 0 | | ALFALFA.SPOTALFAPH.86.MANG | PI 204590 83i SD | |
| INSECT | Blue aphid | Percent of seedling survival after Blue aphid damage. (Acyrthosiphon kondoi). | 6.33 | | ALFALFA.BLUEAPHID.86.CADDEL | PI 204590 83i SD | |
| INSECT | Clover Root curculio | Percent of plants resistant to Clover Root Curculio (Sitonia hispidulus). | 19.9 | | ALFALFA.ROOTCURC.90.BYERS | PI 204590 83i SD | |
| MORPHOLOGY | Seed weight 100 | Weight of 100 seeds in grams. | 0.2 | | ALFALFA.SEEDWEIGHT.WRPIS | PI 204590 83i SD | |
| STRESS | Salt germination - ic(50) valu | Sodium chloride concentration which inhibits germination of 50% of the viable seed. | -0.37 | | ALFALFA.SALTGERM.88.RUMB | PI 204590 83i SD | |
| STRESS | Tolerance to salt stress | The ratio of mean regrowth amount under salt stress to that produced under non-stress conditions expressed as a proportion of the ratio for a control cultivar(s). | 1.251 | | ALFALFA.SALTSTRESS.89.SMITH | PI 204590 83i SD | |