L-446RR Alfalfa

  • Performance with Roundup Ready® Technology
  • For aggressive 3 or 4 cut harvest systems
  • Maximizes yield of high quality, weed-free forage
  • A variety forward-bred with the Roundup Ready® trait
  • Adapted to all U.S. production zones where fall dormancy 3, 4 or 5 varieties are normally grown for hay, haylage or greenchop
  • For “best practices” aggressive management systems
  • Part of the Roundup Ready® alfalfa system
  • Agronomic performance is competitive with the leading conventional alfalfas in the market
  • Tall, upright growth habit
  • Medium-dark green foliage
  • Multifoliate Leaf Expression: Yes



  • Fall Dormancy 
  • Wisconsin Disease Rating Index 
    30 of 30
  • Anthracnose
  • Aphanomyces Race 1 
  • Bacterial Wilt 
  • Fusarium Wilt 
  • Phytophthora Root Rot 
  • Verticillium Wilt 
  • Pea Aphid 
  • Spotted Alfalfa Aphid
  • Northern Root Knot Nematode 
  • Stem Nematode 
  • WSI Rating
  • Recovery After Cutting
  • Multi-leaf
  • Yield Potential
  • Forage Quality
    Very Good
  • Root Type

Alfalfa Rating Key

Ratings are based on the average performance of the variety over a wide range of climate and soil types. Actual performance may be adversely affected by extreme conditions. Unless stated, ratings are based on standardized testing procedures endorsed by the North American Alfalfa Improvement Conference.

FALL DORMANCY: The reaction of alfalfa varieties to decreasing day length and temperatures in the fall versus check varieties. FD 1 Norseman, FD 2 Vernal, FD 3 Ranger, FD 4 Saranac, FD 5 Archer, etc.
PEST RESISTANCE RATINGS: S = Susceptible with 0-5% resistant plants; LR = Low Resistance with 6-14% resistant plants; MR = Moderate Resistance with 15-30% resistant plants; R = Resistance with 31-50% resistant plants; and HR = High Resistance with greater than 50% resistant plants.
WISCONSIN DISEASE RATING INDEX: For the six major diseases of alfalfa, a variety is awarded 5 points for each HR, 4 points for each R, 3 points for each MR, 2 points for each LR and 1 point for each S. A perfect score is 30 of 30.
WINTER HARDINESS INDEX: 1 = Most hardy and least winter injury, 6 = Least hardy and injury resulting in plant death. Ratings are in relationship to the winter injury incurred by standard check varieties.