[{"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":18,"relationship_count":0,"history_event_count":0,"sample_snippets":["Pit large and flat.","Color dark, rather dull red.","Fruit very large.","One of the trees was badly broken down on account of the heavy load of fruit."]},{"source_document_id":103,"title":"PERENNIALS - The Northwest Nursery Co.","url":"https://archive.org/download/CAT31304326/CAT31304326.pdf","rights_status":"unknown","evidence_claim_count":11,"relationship_count":0,"history_event_count":0,"sample_snippets":["The heaviest plantings are recommended for Terry; it is compared to Wealthy in the apple orchard as Terry is to the plum orchard.","Said to be particularly at home on northwestern soil.","Often planted as an ornamental tree upon the lawn.","Well shaped and covered with shiny, broad green leaves."]},{"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":3,"relationship_count":0,"history_event_count":0,"sample_snippets":["Species/background listed as P. salicina x P. americana.","Pollinated 4 varieties tested.","Rated as a fair pollinizer in Table 4."]},{"source_document_id":104,"title":"Northern novelties for 1921 : some new fruits, ornamentals, etc.","url":"https://archive.org/download/CAT31306465/CAT31306465.pdf","rights_status":"unknown","evidence_claim_count":2,"relationship_count":0,"history_event_count":0,"sample_snippets":["Named as the pollen parent of Waneta.","Described as the largest native plum."]}]