answers: Iowa
context: Americans and scientific research. It is now the third leading grain crop in the world. According to "Tribes That Slumber" by Thomas Lewis and Madeline Kneberg, corn was "the staff of life to the Cherokee", who grew three types of corn. "Flour corn" had "very large, white kernels". "Six weeks corn" was a type similar to popcorn, roasted at milk stage. "Hominy corn" came in different colors of "smooth, hard kernels" which might be white, blue, red or yellow, or a mix of any of these. By the time scientific assessment of conduciveness to grow corn in the United States </s> available in the United States in the 19th century. Two of the most enduring cultivars, still available today, are 'Country Gentleman' (a Shoepeg corn with small kernels in irregular rows) and 'Stowell's Evergreen'. Sweet corn production in the 20th century was influenced by the following key developments: There are currently hundreds of cultivars, with more constantly being developed. The fruit of the sweet corn plant is the corn "kernel", a type of fruit called a caryopsis. The "ear" is a collection of kernels on the "cob". Because corn is a monocot, there is always an even number of rows of </s> Dried Grains with Solubles), accounting for 37% (27% + 10%), or 4,845 million bushels (3,552 + 1,293). The other uses are given in the table. cereals. The final estimate of corn production for the years 1950 to 1959 in the United States is given as some three billion bushels and in recent years, some nine billion bushels are produced each year. Corn growth is dominated by west north central Iowa and east central Illinois. In 2011, the national average production was 147 bushels per acre, and reported to be 20 bushels per acre more than the yield in 2002. Based
question: where is the majority of sweet corn grown