Complex sentence: Most significant was the ban in Kern County, California, the primary setting of the novel, likely a product of the desire of groups who had a financial interest in California corporate farming to protect that interest, rather than the professed reason of obscenity.
Split into simpler sentences: Most significant was the ban in Kern County, California, the primary setting of the novel. This ban was likely a product of the desire of groups who had a financial interest in California corporate farming to protect that interest, rather than the professed reason of obscenity.