Description
Fall Dormancy: 4
Winter Hardiness: 2
Disease Rating Index: 32/35
FF 54B66 Brand is a premium alfalfa blend featuring winter-hardy genetics that thrive across a wide range of growing environments. Designed for successful establishment, FF 54B66 is a trusted choice for growers seeking high-quality, disease-resistant alfalfa with excellent yield potential in a variety of environments.
Key Features
- Premium blend of alfalfa genetics
- Adaptable to many growing environments
- Good disease resistance
- Good forage yield
- Very good winterhardiness
General Characteristics
Segment
Forage
Species
Alfalfa
Sci. Name
Medicago sativa
Plant Characteristics
Stem Thickness
Medium
Multifoliate (MF) Leaf Expression Frequency
N/A
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
Resistant
Verticillium Wilt
Resistant
Anthracnose (Race 1)
Resistant
Anthracnose (Race 5)
Not Tested
Phytopthora Root Rot
Highly Resistant
Aphanomyces Root Rot (Race 1)
Resistant
Aphanomyces Root Rot (Race 2)
Moderately Resistant
Aphanomyces Root Rot (Enhanced)
Not Tested
Pea Aphid
Resistant
Blue Alfalfa Aphid
Not Tested
Cowpea Aphid
Not Tested
Spotted Alfalfa Aphid
Not Tested
Potato Leafhopper
Not Tested
Stem Nematode
Not Tested
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 | Very Slow |
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