Green canola

  • Grading for green: Two limes don’t make a green

    Green canola

    The Canadian Grain Commission has a colour guide for elevator graders to follow. Distinctly green is a dark green throughout the whole seed. Light green or greenish yellow seeds – sometimes called ‘limes’ – are not distinctly green and are not included in the green total.

    READ MORE

  • Green seed: What to do about it?

    Green canola

    Most green seed issues result when heavy frost hits canola before the seeds mature. This permanently stops the chlorophyll-clearing process and locks in green. Nothing can be done to reduce this green. Drying can shrivel up green immature seeds, which might seem to have a benefit, but it does not reduce the green in mature seed. With high-green canola, farmers will want to…

    READ MORE

  • High green. Will it clear?

    Green canola

    Canola that still has a lot of green seed might not de-green that much further. Green may have been locked in by frost and if more de-greening was possible, it probably should have happened already with the moisture over the past two weeks. When good harvest opportunities arise, the best bet at this stage of the season is probably to get that canola in the bin.

    READ MORE

  • Reader question: Does green content go down in the bin?

    Green canola

    Some researchers found that long-term storage may decrease green seed count slightly, but farmers should not count on a significant improvement in storage – especially if seeds are very dry.

    READ MORE

  • Late-harvested canola may have more green

    Green canola

    Green seed small

    Late harvested canola fields that were at various stages of growth when swathed may have high levels of green seed. If that is your situation, here are two articles that may be helpful…

    READ MORE

  • What to do with high green canola

    Green canola

    Crush strips canola grade

    Step one is to know the green count. When shopping around for buyers, make sure your sample represents the canola you’ll deliver. Loads have been rejected because the canola delivered didn’t meet the specifications indicated in the original sample. The Canadian Grain Commission has tips on how to take a representative grain sample.

    READ MORE

  • Don’t wait for green to clear

    Green canola

    Harvest canola combine

    In August and September, growers may want to let canola cure longer hoping for the warm and moist conditions required to clear green from their canola seed. By October, getting the crop off becomes the priority. Green seed is unlikely to turn anymore unless a lot of moisture (snow?) comes, in which case harvest may be delayed until spring. When good harvest days come along, the best option is likely to put canola in the bin.

    READ MORE

  • Reasons for high green

    Green canola

    Green seed small

    Green seed will be a downgrade factor on some fields this year. Those at highest risk tend to be later crops that still had a lot of immature seeds when cold frosts hit two weeks ago. Green that results from a killing frost is locked in, and will not clear no matter how long it cures.

    Rapid drydown due to hot weather can also result in high green seed. In this case, green-clearing enzymes can restart, but seed moisture has to get back up to 20%. This will require a few days of rain and humidity, and continued warm weather.

    READ MORE

  • High green: Will it clear?

    Green canola

    Green seed cropped

    Frost stops the chlorophyll-clearing process in canola seed — usually permanently. High green counts are likely in fields that were not fully mature when the heavy frost hit last week.

    READ MORE

  • Dockage and green elevate storage risk

    Green canola

    Storage and spoilage graph

    Know the quality of the canola going in the bin. Green seeds, weed seeds and dockage increase the risk. Even high quality canola can be at risk if stored hot (temperatures are coming back up so don’t let the snow fool you) or at moisture above 8%. Here are the details…

    READ MORE

Canola Watch