The Wikipedia article about Jorge Amado's The Violent Land / Terras do Sem Fim describes this work as "a Brazilian Modernist novel". The corresponding Portuguese, French and Italian Wikipedia articles make no mention of modernism.
The novel was published in 1943, so it can be argued that it is an early example of late modernism. However, the Wikipedia article about literary modernism does not discuss Amado or any other South-American authors, and the Wikipedia article about Jorge Amado merely points out that he was an author "of the modernist school" without providing references on Amado's modernism.
Hence my question: what characteristics of The Violent Land make this work a modernist novel? Or is the claim incorrect?