Horizon Ag
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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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High yield potential and industry-leading blast resistance are an essential combination for Coastal rice farmers today who need both characteristics in their rice seed to maximize profitability. Farmers get both with new CLL17 from Horizon Ag, a Louisiana-bred Clearfield® variety being released for the 2021 season. CLL17 has consistently out-yielded CL153, the top-planted Louisiana variety in recent years, in multi-year trials in the state. It has solid ratoon crop potential in addition to featuring outstanding resistance to blast. CLL17 also has proven to provide excellent milling yield and very good grain quality.


  • Early-season, semi-dwarf long grain
  • Strong yielder, consistently out-yielding CL153
  • Requires lower nitrogen
  • Excellent milling yield
  • Resistant to blast and Cercospora


  • Plant Height: 39 inches
  • 50% Heading: 81 days
  • Lodging: Susceptible
  • Grain Quality: Very Good


  • Seed/lb1: 18,693
  • Seeding rate2: 55-65 lb/A
  • Nitrogen rate3: 90-130 lb N/A
Disease RatingsVSSMSMRR
Sheath BlightO
Bacterial Panicle Blight*O
Narrow Brown Lean Spot*O
False SmutO
VS = Very SusceptibleS = SusceptibleMS = Moderately SusceptibleMR = Moderately ResistantR = Resistant
  • This variety has genetic markers for Pi-ta, which confers resistance to the following blast races: IA45, IB1, IB49, IB54, IB45, IH1, IG1, IC17, IE1.

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

  • 1 Seed/lb is not an exact number; it is an average from multiple samples harvested over a wide geography.
  • 2 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.
  • 3 Nitrogen rate is a suggested rate based on a two-way split nitrogen application with the first application being applied on dry soil.