Clearfield® Production System

The Clearfield® Production System is one of the best ways to grow lentils. It combines high-performing red and green lentil varieties with an unrivalled portfolio of crop solutions – all tailored to your region. Here’s how you can get started:

  1. Decide to grow Clearfield lentils
    Source seed directly from your local seed grower.
  2. Get your seed Clearfield-Confirm® tested
    Get your farm-saved seed tested at one of the accredited Clearfield lentil seed testing labs prior to growing or selling it.
  3. Sign the Clearfield Commitment
    The Clearfield Commitment makes it easier to grow Clearfield lentils and take advantage of all the benefits they offer including the AgSolutions® Rewards Program, without any additional costs. In 2015, BASF introduced the evergreen Clearfield Commitment for lentils. Once signed, this Commitment will extend the period of your license to use Clearfield technology without the need for an annual agreement. All we ask is for you to register your seeded lentil acres once a year.

    Your Commitment helps maintain the integrity of the Clearfield trait by driving product innovation and introducing new varieties to the lentil market. When you sign a Clearfield Commitment and complete a matching Clearfield lentil herbicide purchase (Ares™, Odyssey®, Odyssey Ultra, Odyssey DLX, Solo®, Solo ADV), a portion of the herbicide sales is reinvested into the Crop Development Centre (CDC) to support ongoing research and development of new Clearfield lentil varieties.
  4. Benefit from BASF crop protection products
    Along with high-performing red and green varieties, you can enjoy superior in-crop weed control without harming your lentils and industry-leading disease control from an innovative portfolio of products from BASF. It’s no wonder growers put their trust in the Clearfield Production System season after season, year after year.


There are different seed sizes in lentils. The large-seeded type has a seed size that averages 50 grams or more per 1,000 seeds. 

The small-seeded type has a seed size that averages 40 grams or less per 1,000 seeds. Seed coat colours range from clear to green, tan, brown, gray, blotched purple or black. The cotyledons can be yellow, red or green. The different combinations of seed coat and cotyledon colours determine specific market classes preferred by consumers.

Green varieties typically have yellow cotyledons with green seed coats and are described as large, medium, and small. About 75% of green lentils are large-seeded and about 20% are classified as small greens. Green lentil is mostly sold as whole seed. Most of the large green varieties require early seeding because they are relatively late maturing and indeterminate. They produce tall plants which can be prone to lodging and are susceptible to botrytis (gray mould) infestations in high rainfall areas.

Red varieties typically have grey seed coats with red cotyledons. Red lentils are sold as whole seeds, dehulled seeds, or as dehulled split seeds, and described as large, small, and extra small market classes.

Specialty varieties are grown in much of Saskatchewan in small volumes. Indianhead is a black-seeded lentil originally intended for use as a green manure or plow-down crop, and more recently has been marketed as a Beluga Lentil. King Red is a specialty red lentil market class with a large seed size. Small quantities of varieties of the French green, Spanish brown, and green cotyledon (Queen Green) market classes are produced.

Varieties with the Clearfield trait (have CL suffix) are a recent development. This trait allows use of imidazolinone herbicides, such as Ares, Odyssey, Odyssey DLX, Odyssey Ultra, Solo and Solo ADV that would otherwise cause injury to conventional lentils.

Varieties differ in their height, maturity and resistance to ascochyta and anthracnose. Small red varieties tend to be earlier maturing and shorter than green varieties. Ascochyta resistance rated as ‘good’ is still only an intermediate level and anthracnose resistance only applies to Race 1. Integrated disease management practices need to be considered as the varieties can still be infected by diseases.

Learn more about the Clearfield Production System