This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Dioscorea rotundata

Common Name(s): White Guinea yam
Family: Dioscoreaceae
Growth Habit: Perennial
Growing Days: 180 to 300 (days)
Abs.Max=100° (F)    Opt.Max=90° (F)
Opt.Min=77° (F)    Abs.Min=59° (F)
Precipitation: 39 to 59 (in.)
Winter Minimum: 48° (F)
Soil pH: 6.4 to 6.7
Soil Texture/Type: Heavy textured soils
Soil Drainage: Well
Photoperiod Response: Short day
Light Intensity: Bright to clear
Prefers deep soils of high fertility. Low salt tolerance.
Anthrachose, Cercospora
Food - vegetable
Tropical-wet and dry
Geographical Origin:
Only cultivated, Western Africa
Metric Units

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Last Modified: October 17, 2012
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