[{"source_document_id":105,"title":"Hardy fruits for Northern planting, trees, shrubs, 1937","url":"https://archive.org/download/CAT31349771/CAT31349771.pdf","rights_status":"unknown","evidence_claim_count":9,"relationship_count":0,"history_event_count":0,"sample_snippets":["Included among sturdy, vigorous trees and plants grown by the Minnesota Fruit Breeding Farm.","Offered as one of the free membership premium choices for 1937.","Listed under the Plum Trees section.","Commercial growers are said to be receiving repeat orders for 'the Apricot-Plum.'"]},{"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":7,"relationship_count":0,"history_event_count":0,"sample_snippets":["The author suggests Kaga with its heritage from P. Simonii may be largely responsible for the high percentage of good pollinizers in the Burbank-derived group where it was the male parent.","The page identifies Kaga as a P. americana x P. Simonii plum in the discussion of a P. japonica x Kaga cross.","Kaga appears as the male parent in a 15-variety Burbank-derived group summarized in Table 7.","Species/background listed as P. americana x P. simonii."]},{"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":6,"relationship_count":0,"history_event_count":0,"sample_snippets":["merged across zone columns","For all zones","other","HANSEN PLUMS FOR ALL ZONES"]},{"source_document_id":135,"title":"Spring 1909 : some new fruits","url":"https://archive.org/download/CAT31290273/CAT31290273.pdf","rights_status":"unknown","evidence_claim_count":6,"relationship_count":0,"history_event_count":0,"sample_snippets":["Kaga was priced the same as Hanska and included in a special offer of one each of Hanska, Inkpa, and Kaga for $2.50.","Further trial was said to be needed to determine which of the same-parentage seedlings was best.","Kaga is grouped with Hanska and Inkpa as much alike in fruit and rapidity of growth.","Kaga was offered for the first time in this Spring 1909 publication."]}]