Measuring the height of the wheat variety PI372129 grown in a research greenhouse.

Baking bread in a primitive oven.

Printouts of the mixograph curves of protein content in different wheat varieties.

Combines harvesting winter wheat.

Spray coupe for use in applying pesticides to winter wheat.

Spray and mixing tanks for applying pesticides to winter wheat.

Using a handheld device to determine temperature of the canopy of wheat in the field.

Combine harvesting winter wheat.

Side view of a combine harvesting winter wheat.

Back end of a wagon loaded with bales of straw gathered from a field of winter wheat.

Center pivot irrigation system in a field of winter wheat, February.

Tooth rake used in cultivating winter wheat.

Tractor-driven tooth rake in spring, used for cultivating winter wheat.

Mixograph in use in the laboratory to determine protein content of wheat flour.

Wheat combine.

Irrigation of spring wheat in the San Luis Valley, Colorado.

Field set-up for weighing samples of wheat as it is harvested from research plots in the field.

Point source irrigation distribution for wheat.

Trailer of wheat parked next to a storage bin.

Winter wheat field cultivator, pulled by a tractor.

Winter wheat harvest near Kersey, Colorado - combine and harvest wagon.

Mature irrigated winter wheat near Burlington, Colorado.

Side view of a wheat planter sowing wheat.

Truck unloading wheat into an elevator and storage bin.

Tractor-driven winter wheat planter.

Grain wagon for transporting wheat after harvest.

Grain loading facility for storage of winter wheat and field corn.

Grain storage facility in the San Luis Valley, Colorado.

The flowering heads of one variety of winter wheat.

Seedheads of small grain winter wheat.

Mature heads of winter wheat, Burlington, Colorado.

Mature seedheads of winter wheat.

Head of a winter wheat plant.

Winter wheat plants, ripening.

Surveyors of seed increase in a field of winter wheat.

Winter wheat emerging from melting snow.

Scenic view of a field of winter wheat.

Field of maturing winter wheat.

Scenic view of a winter wheat field in the San Luis Valley of Colorado.

Beef cattle in a field of winter wheat.

Cattle standing next to the center pivot irrigation system in a field of winter wheat.

Cattle in a winter wheat field.

Winter wheat plants in flower.

Winter wheat plant in flower.

Winter wheat harvest near Kersey, Colorado.

Combines harvesting wheat.

Combine harvesting winter wheat.

Members of a winter wheat disease survey team in 1995: Jack Riesselman, Gary Lancaster, Joe HIll, and Vidal Velasco.

Surveying a winter wheat field.

Scenic view of a volcano and winter wheat fields overlooking Pasto, Colombia.

Scenic view of rolling fields of winter wheat in southeastern Washington state.

Winter wheat field demonstrating clean tillage during fallow to control wheat streak mosaic virus.

Distant view of a wheat field being burned after harvest.

Burning crop residue after harvest in a wheat field.

Two Colorado State University wheat researchers: Frank Peairs and Jim Quick.

Winter wheat plants at the pre-boot stage of development.

Spring wheat plants growing in a research greenhouse.

A winter wheat field at the 'heading' stage of development.

A winter wheat plant at the 'heading' stage of development.

A winter wheat plant at the 'heading' stage of development.

Winter wheat plants at the 'heading' stage of development.

Winter wheat plants at the 'heading' stage of development.

Winter wheat plants at the 'heading' stage of development.

Winter wheat plants at the 'heading' stage of development.

Wheat planter in action, sowing winter wheat in a field cultivated and prepared for planting.

Burning crop residue after harvest in a wheat field.

Winter wheat variety trial in research plots

Field trials of winter wheat.

Printout from a mixograph used to determine protein content of wheat in the laboratory.

Wheat field showing different varieties growing in a trial.

Wheat plant used in research into biological control of the Russian wheat aphid.

Crossing winter wheat in the greenhouse.

Winter wheat plants dug up to show the roots.

Winter wheat plants dug up to show the roots.

Comparison of the seeds of the white wheat variety "Rio Blanco" and the red "TAM107."

Close-up view of seeds of hard white winter wheat.

Close-up view of seeds of soft white spring wheat.

Triticum aestivum var spada on left, T. durum in middle, and T. aestivum var mec. on right

Seedling of winter wheat.

Surveying a field of winter wheat at maturity.

Laboratory equipment set up to conduct a membrane test on winter wheat plants.

Test tubes set up to conduct a TTC test on winter wheat in the laboratory.

Laboratory equipment set up for doing conductivity tests on the leaves of winter wheat.