Sentence:  The planter aristocracy has appeared in literature at least since John Pendleton Kennedy published Swallow-Barn in 1832 and in his genial portrait of Frank Meriwether presiding over his <WSD>plantation</WSD> dominion initiated the most persistent tradition of Southern literature . 
Meaning of the word marked with <WSD> tags:  an estate where cash crops are grown on a large scale (especially in tropical areas)