
Medicago sativa

AFX 647
Fall Dormancy: 6.0
Winter Survival: TBD
Disease Rating Index: 23/25
StandFast FastGrowth Rating: TBD
AFX 647 Hi-Salt Alfalfa is a variety designed for high yields and superior forage quality, even in tough soils with salinity challenges. AFX 647 adapts to a wide range of soil types, production practices, and harvest systems. It features medium harvest maturity, fast recovery after cutting, and persistence for medium to long rotations.
Key features
- Semi-dormant variety
- Excellent forage yield
- Salinity tolerance to germination and forage production
- Adapted to a 5 or 6 cut management system
- Excellent forage quality
Segment
Forage
Bacterial Wilt
Highly Resistant
Species
Alfalfa
Fusarium Wilt
Highly Resistant
Sci. Name
Medicago sativa
Verticillium Wilt
Resistant
Cutting System
5-7
Anthracnose (Race 1)
Highly Resistant
Emergence (Days)
7
Anthracnose (Race 5)
Not Tested
Root Type
Tap
Aphanomyces Root Rot (Race 1)
Not Tested
Aphanomyces Root Rot (Race 2)
Not Tested
Aphanomyces Root Rot (Enhanced)
Not Tested
Growth Habit, Spring
Erect
Blue Alfalfa Aphid
Resistant
Cowpea Aphid
Resistant
Stem Thickness
Medium
Pea Aphid
Moderately Resistant
Multifoliate (MF) Leaf Expression Frequency
Trifoliate
Spotted Alfalfa Aphid
Resistant
Stem Nematode
Resistant
Potato Leafhopper
Not Tested
Northern Root Knot Nematode
Highly Resistant
Approx. Seeds/Lb.
227000
Phytopthora Root Rot
Resistant
Seeding Rate - Alone/New (Lbs./Acre)
18-25
Seeding Rate - Mixes (Lbs./Acre)
15-20
% Resistant Plants | Resistance Class | Class Abbreviation |
---|---|---|
> 50 % | High Resistance | HR |
31 – 50 % | Resistant | R |
15 – 30 % | Moderate Resistance | MR |
6 – 14 % | Low Resistance | LR |
< 5 % | Susceptible | S |
StandFast FastGrowth ratings are calculated from weekly measurements of varieties grown side‑by‑side from green‑up to harvest through the growing season. Expressed as average centimeters of growth per day.
Average cm / day | Growth Rating |
---|---|
> 2.20 | Very Fast |
> 2.00 | Fast |
> 1.80 | Average |
> 1.60 | Slow |
< 1.60 | Very Slow |