Medicago sativa
HybriForce 4420/Wet
Fall Dormancy: 4.0
Winter Survival: TBD
Disease Rating Index: 35/35
StandFast FastGrowth Rating: 1.78
HybriForce 4420/Wet is a cutting-edge hybrid alfalfa variety that utilizes msSunstra Hybrid Alfalfa Technology to deliver exceptional performance, particularly in challenging growing conditions. With its high yield potential, this variety is specifically bred to thrive in heavy, variable, or wet soils, making it an ideal choice for producers facing adverse environmental factors.
Key features
- Gen-4 hybrid alfalfa using msSuntra® Hybrid Alfalfa Technology
- Branch rooted alfalfa
- Increased performance under adverse conditions
- Exhibits unique ability to modify root structure to match conditions
- Tall, dense, leafy hybrid alfalfa with fine stems
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
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)
Highly Resistant
Aphanomyces Root Rot (Enhanced)
Not Tested
Pea Aphid
Not Tested
Blue Alfalfa Aphid
Not Tested
Cowpea Aphid
Not Tested
Spotted Alfalfa Aphid
Resistant
Potato Leafhopper
Not Tested
Stem Nematode
Resistant
Northern Root Knot Nematode
Not Tested
| % 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 |