This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Brassica napus var. napus
Synonyms: B. campestris napus; B. napus biennies; B. napus napus biennis

Common Name(s): Winter rape
Family: Brassicaceae
Growth Habit: Winter Annual
Growing Days: 280 to 340 (days)
Abs.Max=106° (F)    Opt.Max=77° (F)
Opt.Min=50° (F)    Abs.Min=41° (F)
Precipitation: 20 to 39 (in.)
Winter Minimum: -4° (F)
Soil pH: 5.5 to 7.6
Soil Texture/Type: Medium to light textures
Soil Drainage: Well
Photoperiod Response:
Light Intensity: Bright to clear
Winter annual. Does not endure ponding. Established plants endure winter best.
Phytothora, Sclerotinia, Rhizoctonia, Cercospora, Anthrachose, Powdery Mildew
Fuel - industrial oil


Geographical Origin:
Only cultivated
Metric Units

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Last Modified: October 17, 2012
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