Medicago sativa

AFX 589

AFX 589

Fall Dormancy: 5.0
Winter Survival: 1.5
Disease Rating Index: 34/35
StandFast FastGrowth Rating: 2.19

AFX 589 Hi-Ton Alfalfa is tailored for growers who prioritize aggressive management and harvesting strategies to maximize both seasonal dry matter yield and forage quality. Ideal for production areas using fall dormancy 4 and 5 alfalfas, AFX 589 excels in environments where four or more cuttings are anticipated each season.

Key features

  • Hi-Ton
  • Excellent yield potential
  • Very fast green-up after harvest
  • Performs well under dryland or irrigated conditions
  • Suitable where 4 or more cuts are desired

Segment Forage
Bacterial Wilt Highly Resistant
Species Alfalfa
Fusarium Wilt Highly Resistant
Sci. Name Medicago sativa
Verticillium Wilt Highly Resistant
Cutting System 4-6
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 Not Tested
Cowpea Aphid Not Tested
Stem Thickness Medium
Pea Aphid Resistant
Multifoliate (MF) Leaf Expression Frequency Low < 49%
Spotted Alfalfa Aphid Not Tested
Stem Nematode Resistant
Potato Leafhopper Not Tested
Approx. Seeds/Lb. 227000
Phytopthora Root Rot Highly 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