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Horizon Ag Clearfield® varieties offer excellent in-field performance, high yield potential and the quality grain and cooking properties that major food companies and mills demand.

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CL163 is an early, semi-dwarf rice variety first released commercially in 2016. CL163 was developed by Mississippi State University at the Delta Research and Extension Center. This variety is the first Clearfield® variety that has the "Dixiebelle" cook type that is preferred for rice processing. CL163 has also received favorable reviews for key export countries in the Western Hemisphere. CL163 is very susceptible to sheath blight and susceptible to blast but moderately resistant to straight head and moderately susceptible to bacterial panicle blight. It has shown its greatest yield potential on the heavy clay soils in NE Louisiana, SE Arkansas and Mississippi, often rivaling CL151.


  • Excellent yield potential and seedling vigor
  • Outstanding grain quality and milling
  • Exceptional cooking quality: extra-high amylose content compared to current long grain varieties
  • Ideal for parboil, canning, food services or package rice
  • Susceptible to blast; not recommended for fields with a history of blast or water issues


  • Plant Height: 41 inches
  • 50% Heading: 83 days
  • Lodging: Moderately Susceptible
  • Grain Quality: Excellent


  • Seed/lb1: 18,500
  • Seeding rate2: 60-70 lbs/A or 25-30 seed/ft2
  • Nitrogen rate3: 120-160 lbs N/A
Disease RatingsVSSRMSMR
Sheath BlightO
Straight HeadO
Bacterial Panicle Blight*O
Narrow Brown Leaf Spot*O
Kernel SmutO
VS = Very SusceptibleS = SusceptibleR = ResistantMS = Moderately SusceptibleMR = Moderately Resistant

*Reactions may differ due to variability of strains among pathogens.

  • 0 Seed /lb is not an exact number; it is an average from multiple samples harvested over a wide geography.
  • 1 Seeding rate is a suggestion based on drill-seeding in ideal conditions and fungicide/insecticide treated seed. Planting non-treated seed is not recommended. Seeding rate should be increased by a minimum of 10 lbs/A when using non-treated seed, planting into a rough seedbed, water-seeding, high pH soils and soils with salinity issues.
  • 2 Nitrogen rate is a suggested rate based on a two-way split nitrogen application with the first application being applied on dry soil.