Skip Navigation

Button that takes you back to the home page. Button that takes you to the teacher pages. Button that takes you to the modules and activities page. Button that takes you to the glossary page. Button that takes you to the related links page. Button that takes you to the references page. Button that takes you to the Problem Based Learning model page. Image map of some Global Climate Change puzzle pieces.  Please have someone assist you with this.

Image that says Overview.
Button that takes you to the Nutrients page.
Button that takes you to the Temperature page.
Button that takes you to the Precipitation page.
Button that takes you to the Carbon Dioxide page.

Image of Earth System Science Education Alliance logo that links to the Earth System Science page.

 

Image of Earth's Spheres logo that links to the Earth's Spheres page.

Wheat: Overview
Wheat is the most widely produced food crop in the world. In the United States, 42 states grow wheat and Kansas is the highest producing state. In 1997, Kansas alone grew enough wheat to bake six-and-a-half loaves of bread for every person in the world. To learn more about the daily activities of Kansas wheat farmers, visit The Kansas Wheathearts' Wheat Mania Site.

Image of wheatheads at harvest time.Wheat is divided into two 'types'--winter and spring. Winter wheat is planted in the fall, remains dormant through the winter, and is harvested in the spring. It is the primary type of wheat grown in Kansas. Spring wheat, which is more often grown in northern states, is planted in the spring and harvested in the fall. Each of these two types of wheat is further divided into 'classes.' There are six classes of winter and spring wheat grown in the United States. Hard red winter wheat is the largest class of wheat produced and exported from this country each year. To learn more about the classes of wheat, visit the Minnesota Association of Wheat Growers. Photo: Wheatheads at harvest time. Photo courtesy of Wheat Mania.com.

Within each of the six classes of wheat, there are several 'varieties.' Each variety has specialized characteristics. For example, one variety might have extreme disease resistance, while another has a high protein content. Farmers try to plant the varieties best suited for their particular farms so that they can grow the most wheat on the smallest amount of land at the lowest cost, thus maximizing  their profits. Therefore, choosing the right variety can be the most important part of increasing crop yield, according to The University of Georgia's Intensive Wheat Management Site.

Even with the best choice of variety, growing wheat can still be a challenge. Farmers must supply their crops with enough nutrients and protect them from diseases, insects, weeds, and severe weather. Other important factors that affect the yield of wheat crops include temperature, the amount of water available, and even the concentration of carbon dioxide (CO2) in the air.

 

Overview ..|.. Nutrients ..|.. Temperature ..|.. Precipitation ..|.. Carbon Dioxide
Glossary ..|.. Related Links ..|.. References  |.. PBL Model

Home ..|.. Teacher Pages ..|.. Modules & Activities

Button that takes you back to the Global Climate Change main page.

HTML code by Chris Kreger
Maintained by ETE Team
Last updated November 10, 2004

Some images 2004 www.clipart.com

Privacy Statement and Copyright 1997-2004 by Wheeling Jesuit University/NASA-supported Classroom of the Future. All rights reserved.

Center for Educational Technologies, Circuit Board/Apple graphic logo, and COTF Classroom of the Future logo are registered trademarks of Wheeling Jesuit University.