a brand of



Dormancy 4 Alfalfa

Download Brochure

SW4618S is a high-yielding, fall dormancy four variety, bred in saline growing conditions and selected for the ability to maintain improved production of hay in saline soils.

Key Advantages

  • Well adapted to Western US FD4 growing areas with salinity challenges in soil or irrigation water
  • Relative Feed Quality (RFQ) is above average, 102% of the mean versus RFQ of elite check varieties.
  • Yield is 97% of the mean under non-saline growing conditions, but demonstrates 12% more yield retention in moderate to strong saline growing conditions, versus the standard check variety.
  • Highly suitable for growing areas that obtain 3-4 cuts per season
  • Suitable for saline soils where irrigation water and/or soil contains moderate salt concentration
  • Maintains good yield in saline growing conditions, of high quality and quantity of hay or haylage

Major Pest Resistance

  • Bacterial Wilt – Highly Resistant
  • Fusarium Wilt – Highly Resistant
  • Verticillium Wilt – Resistant
  • Anthracnose – Highly Resistant
  • Phytopthora Root Rot – Highly Resistant
  • Aphanomyces (race 1) – Highly Resistant
  • Aphanomyces (race 2) – Low Resistance
  • Pea Aphid – Highly Resistant
  • Spotted Aphid – Highly Resistant
  • Stem Nematode – Resistant
  • Root Knot Nematode – Highly Resistant

(Pest Resistance Rating Scale: Highly Resistant, Resistant, Moderately Resistant, Low Resistance, Susceptible)

Agronomic Traits

  • DRI Score: 30/35
  • Fall Dormancy: 4
  • Yield: 8
  • Winter Hardiness: Very Hardy

Where to Buy

We sell our products to more than 35 countries around the world. Our team of agronomists can help you find the variety best suited to your growing environment.