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Resistance of Crops to Frost In Different Development Phases

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Resistance of Crops to Frost In Different Development Phases

Harmful Temperature (F)

  Germination Vegetative Flowering Growth Fruiting
Highest Resistance        
Spring Wheat 16-14 22-25 30-28 28-25
Oats 18-16 24-26 30-28 28-25
Barley 18-19 25-27 30-28 28-25
Peas 18-19   28-27 28-25
Resistant        
Vetch 21-19   27-25 28-25
Beans 23-21 30-32 28-27 27-25
Sunflower 23-21 22-25 28-27 28-27
Safflower 25-21 22-25 28-27 27-25
Flax 23-19 24-26 28-27 28-25
Sugarbeet 21-19 22-25 28-27  
Medium Resistance        
Soybean 27-25 30-32 28-27 28-27
Low Resistance        
Corn 28-27 30-32 30-28 28-27
Millet 28-27 30-32 30-28 28-27
Sudan Grass 28-27 30-32 30-28 28-27
Sorghum 28-27 30-32 30-28 28-27
Potato 28-27 30 --- 30-28
No Resistance        
Buckwheat 30-28 32 30-28 31-28
Melons 31-30 32 31-30 30
Peanut 31-30 32 -- --
Cucumber 32-30 32 -- --
Tomato 32-30 32 32-30 32-30

Selected Data from Ventskevich (1958)