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Medicago sativa

AFX 439

AFX 439

Fall Dormancy: 4.0
Winter Survival: 1.5
Disease Rating Index: 34/35
StandFast FastGrowth Rating: 2.01
AFX 439 Hi-Ton Alfalfa a versatile variety engineered to maximize yield and quality under aggressive management practices.  Known for its high yield performance, AFX 439 excels in longer rotations. When managed intensively for dairy feed, it provides high-quality forage and boasts a rapid green-up rate after harvest. 

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Alforex Seeds by DLF

Alforex Seeds by DLF™ offers a leading alfalfa lineup for North America, featuring elite genetics and technologies. Known for high yield and nutritional value, it supports greater productivity with advanced breeding and rigorous quality testing.
Hi-Ton®

Hi-Ton® alfalfa varieties offer high yield, disease resistance, and pest resistance for growers who want to push their alfalfa acres to maximize seasonal dry matter. These varieties ensure faster growth and recovery after harvest by accelerating green-up by 3 to 5 days, leading to more cuts per season and increased yield potential.

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Key features

  • Widely adapted variety
  • Maximized forage yield under aggressive management
  • Excellent yield performance when longer rotations are desired
  • Maximized forage quality under aggressive management
  • Performs very well when planted in mixtures with grasses and other legumes

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
Blue Alfalfa Aphid Resistant
Cowpea Aphid Highly Resistant
Stem Thickness Medium
Pea Aphid Resistant
Multifoliate (MF) Leaf Expression Frequency Moderate - 68%
Spotted Alfalfa Aphid Highly Resistant
Stem Nematode Resistant
Potato Leafhopper Not Tested
Northern Root Knot Nematode 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