> Yuma Academic Progam. Starting from left: the University of Arizona logo, a field of lettuce sproutlings, heads of lettuce chopped in half, and a field with varying types of lettuce of contrasting colors. College of Agriculture and Life Sciences University of Arizona Menu Bar2 To the Left of this image is Main Page. To the right is a frame Do Not Bookmark To the Left of this image is Main Page. To the right is a frame Do Not Bookmark Menu Bar2 Menu Bar2 Home About Curriculum Faculty Scholarship Careers