
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
Segment
Forage
Bacterial Wilt
Highly Resistant
Species
Alfalfa
Fusarium Wilt
Highly Resistant
Sci. Name
Medicago sativa
Verticillium Wilt
Highly Resistant
Cutting System
3-5
Anthracnose (Race 1)
Highly Resistant
Emergence (Days)
7
Anthracnose (Race 5)
Not Tested
Root Type
Tap
Aphanomyces Root Rot (Race 1)
Highly Resistant
Aphanomyces Root Rot (Race 2)
Resistant
Aphanomyces Root Rot (Enhanced)
Not Tested
Growth Habit, Spring
Semi-Erect
Blue Alfalfa Aphid
Resistant
Cowpea Aphid
Resistant
Stem Thickness
Thin
Pea Aphid
Resistant
Multifoliate (MF) Leaf Expression Frequency
Trifoliate
Spotted Alfalfa Aphid
Resistant
Stem Nematode
Highly Resistant
Potato Leafhopper
Not Tested
Approx. Seeds/Kg.
500000
Northern Root Knot Nematode
Highly Resistant
Approx. Seeds/Lb.
227000
Phytopthora Root Rot
Highly Resistant
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
% 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 |