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Why is bread wheat grown in so many parts of the world?

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A large red and yellow combine harvester cuts through a golden wheat field, leaving neat rows of harvested grain behind. — Cereal farming Combine harvesting wheat.

Bread wheat (Triticum aestivum) is the most widely cultivated plant in the world primarily due to its remarkable adaptability to a diverse range of growing conditions and soil types. It is successfully grown from the southernmost regions of the Americas to near the Arctic, and at elevations ranging from sea level to over 10,000 feet.12

Several key factors contribute to its global prevalence:

Adaptability: Plant breeders have developed more than 200 cultivars in North America alone, specifically adapted to varying ecological conditions. This flexibility allows it to thrive in different climates, supported by the availability of both winter and spring wheat varieties, which are selected based on local winter severity.132
Ease of Handling: The crop is favored for its ease of harvesting and processing.1
Nutritional and Culinary Value: Bread wheat is highly valued for its nutritional content and its unique protein, gluten. Gluten forms an elastic matrix that is essential for creating the structure of leavened bread, making it the preferred cereal for baking.134

These combined traits have established bread wheat as a fundamental global staple.13