Medicago sativa
Magnum 7
Fall Dormancy: 4.0
Winter Survival: 1.6
Disease Rating Index: 34/35
StandFast FastGrowth Rating: 1.54
Magnum 7 Alfalfa offers high-yielding, non-hybrid genetics with excellent forage quality potential and a wide harvest window. Known for its consistent performance, Magnum 7 has very good disease resistance. This variety scores well for winter survival and persistence, making it a reliable choice for long-term alfalfa production in challenging conditions.
Key features
- A favourite of western commercial hay growers and northeast dairyman
- Great forage quality potential
- Proven management flexibility
- Consistent performance
- Adapted for three to five cutting management systems
General Characteristics
Segment
Forage
Species
Alfalfa
Sci. Name
Medicago sativa
Plant Characteristics
Stem Thickness
Thin
Multifoliate (MF) Leaf Expression Frequency
Trifoliate
Cutting System
3-5
Emergence (Days)
7
Growth Habit, Spring
Semi-Erect
Root Characteristics
Root Type
Tap
Seeding Information
Approx. Seeds/Lb.
227000
Approx. Seeds/Kg.
500000
Seeding Rate - Alone/New (Kg./Hectare)
17-23
Seeding Rate - Alone/New (Lbs./Acre)
15-20
Seeding Rate - Mixes (Kg./Hectare)
7-15
Seeding Rate - Mixes (Lbs./Acre)
6-12
Pest and Disease Resistance
Bacterial Wilt
Highly Resistant
Fusarium Wilt
Highly Resistant
Verticillium Wilt
Highly Resistant
Anthracnose (Race 1)
Highly Resistant
Anthracnose (Race 5)
Not Tested
Phytopthora Root Rot
Highly Resistant
Aphanomyces Root Rot (Race 1)
Highly Resistant
Aphanomyces Root Rot (Race 2)
Resistant
Aphanomyces Root Rot (Enhanced)
Not Tested
Pea Aphid
Resistant
Blue Alfalfa Aphid
Resistant
Cowpea Aphid
Resistant
Spotted Alfalfa Aphid
Resistant
Potato Leafhopper
Not Tested
Stem Nematode
Highly Resistant
Northern Root Knot Nematode
Highly Resistant
| % 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 |