English: This image shows graphs of how the growth rate of corn and soybeans are affected by air temperatures. From the public-domain source: "For each plant variety, there is an optimal temperature for vegetative growth, with growth dropping off as temperatures increase or decrease. Similarly, there is a range of temperatures at which a plant will produce seed. Outside of this range, the plant will not reproduce. As the graphs show, corn will fail to reproduce at temperatures above 95 °F and soybean above 102 °F."

Both graphs show plant growth rates that rise and peak at a particular temperature, then fall off and decline. For corn, optimum vegetative growth occurs between around 77-99 °F, while for soybeans , it occurs between 77-97 °F. For corn, optimum temperatures for producing seeds (reproductive response) occurs between around 62-72 °F, while for soybeans , it occurs between 72-75 °F.

See also: climate change and agriculture