| Fall dormancy | 4 |
| Winter hardiness |
2 |
| Yield potential | 2 |
| Forage quality | 2 |
| Stand persistence | 1 |
| Regrowth rate | 1 |
| Silage | 2 |
| Hay | 1 |
| Grazing | 5 |
| Root type | Tap |
| Salt tolerance | Germ |
438RR
High resistance to all primary alfalfa diseases.
- Fall dormancy: 4
- Disease resistance: 35/35
- Winter hardiness: 2
- Best use: hay and silage
*Fall dormancy: 1-11 rating scale describes late-season regrowth, with lower ratings becoming dormant sooner
*Winter hardiness: 1-6, 1 being the best
Rating
| Fair | Average | Excellent |
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | ||
| Yield potential | 2 | |||||||||
| Forage quality | 2 | |||||||||
| Stand persistence | 1 | |||||||||
| Regrowth rate | 1 | |||||||||
Product characteristics
Agronomics
Disease tolerance
| Anthracnose-race 1 | High res. |
| Anthracnose-race 5 | Not rated |
| Aphanomyces-race 1 | High res. |
| Aphanomyces-race 2 | High res. |
| Bacterial wilt |
High res. |
| Fusarium wilt | High res. |
| PRR | High res. |
| Verticillium wilt | High res. |
| Disease resistance |
35/35 |
Insect tolerance
| Pea aphid | High res. |
| Spotted alfalfa aphid | Not rated |
| Blue alfalfa aphid | Not rated |
| Stem nematode | Resistant |
| N. root-knot nematode | Not rated |
| S. root-knot nematode | Not rated |
Alfalfa fall dormancy adaptation zones
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Alfalfa fall dormancy adaptation zones can vary from the above map, which should be used as a general reference. Local climates and individual variety characteristics affect variety selection.
In general, newer varieties with increased winter hardiness allow growers to plant varieties with a higher fall dormancy rating than in the past.
Best use index
×
Roundup Ready® Alfalfa
Due to the unique cropping practices do not plant Roundup Ready Alfalfa in Imperial County, Calif., pending import approvals and until Forage Genetics International, LLC (FGI) grants express permission for such planting.
Roundup Ready Alfalfa has pending import approvals. It is a violation of national and international law to move material containing biotech traits across boundaries into nations where import is not permitted. Growers should talk to their grain handler or product purchaser to confirm their buying position for this product.
Visit foragegenetics.com/legal for the full legal, stewardship and trademark statements for these products.