Which of the following is NOT a major crop in Arizona?

Corn is not considered a major crop in Arizona primarily due to the state's environmental conditions, including its arid climate and limited rainfall. Arizona's agricultural practices are better suited for crops like cotton, which thrive in warm climates and require the irrigation systems that the region can support. Cotton has historically been one of the most significant crops in Arizona due to the state’s extensive cotton-growing areas.

Hay is also a prominent crop in Arizona, serving as essential feed for livestock raised in the region. Wheat, while not as dominant as cotton and hay, can still be grown successfully in Arizona under certain conditions. However, corn, typically requiring more water and different growing conditions than what is available in Arizona compared to other states where it is a staple crop, does not rank alongside these other crops in terms of production and agricultural impact.