[{"source_document_id":17,"title":"Plums in South Dakota","url":"https://openprairie.sdstate.edu/cgi/viewcontent.cgi?article=1092&context=agexperimentsta_bulletins","rights_status":"unknown","evidence_claim_count":21,"relationship_count":0,"history_event_count":0,"sample_snippets":["Norby noted that the plum gouger likes to work on this kind.","In 1904 Norby called the tree good and excessively productive, with fruit averaging large on young trees but running smaller with age.","Norby said it ripens about the same time as the Wolfs and generally bears a good crop, coming into bearing earlier than the Wolfs.","The acerb or bitter skin was said to detract from its value for cooking and canning."]},{"source_document_id":2,"title":"South Dakota Fruit Garden (visual sample pages 9-11)","url":"file:///usr/local/var/www/pomologica/data/raw/manual/benchmarks/sd_fruit_garden_1943_pages_10_12.pdf","rights_status":"public_domain","evidence_claim_count":5,"relationship_count":0,"history_event_count":0,"sample_snippets":["merged across zone columns","other","NATIVE PLUMS","For Cross Pollination"]},{"source_document_id":112,"title":"Pollination Studies with Stone Fruits","url":"https://sherwoods-forests.com/Downloads/UMinnAgExpStation-Stone_Fruit-Pollenation.pdf","rights_status":"unknown","evidence_claim_count":4,"relationship_count":0,"history_event_count":0,"sample_snippets":["Species/background listed as P. americana.","Bloom season: late.","Pollinated 14 varieties tested.","Rated as a good pollinizer in Table 3."]},{"source_document_id":14,"title":"A Study of Northwestern Apples","url":"https://openprairie.sdstate.edu/cgi/viewcontent.cgi?article=1075&context=agexperimentsta_bulletins","rights_status":"unknown","evidence_claim_count":1,"relationship_count":0,"history_event_count":0,"sample_snippets":["Listed as a recommended plum on northern native plum roots across districts 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12."]}]