[{"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":19,"relationship_count":0,"history_event_count":0,"sample_snippets":["The seedlings bore fruit the fourth year from the pit after being transplanted the second spring.","The seedlings fruited freely even when planted closely in nursery rows.","Some of these seedling varieties are under propagation for further trial, with a fuller report deferred to a later plum report.","Some Wolf seedlings also bear fruit of good quality."]},{"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":6,"relationship_count":0,"history_event_count":0,"sample_snippets":["Species/background listed as P. americana.","Bloom season: late.","Pollinated 13 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":3,"relationship_count":0,"history_event_count":0,"sample_snippets":["Recommended on northern native plum roots in multiple districts in the PLUMS section.","Origin mechanism is unresolved as bud variation versus seedling mix in this source.","Two forms (free stone and cling) are recognized in nurseries."]}]