Taxon ID:
Usage Facet: class=edible; edible_score=1.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 37 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=37 | sources=1 | contradictions=0
Claim Types: description_snippet:15, anecdote_snippet:4, source_reference_abbreviation:4, taxon_context:3, productivity:2, release_year_reference:2, selection_origin_reference:2, storage_duration:2 | Open evidence summary JSON | Open citation drawer JSON
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Northstar is a tart cherry cultivar, listed as Prunus cerasus 'Northstar'. A University of Minnesota source identifies it as part of the University of Minnesota Fruit Breeding Farm release history, with release placed in the early 1950s and an on-table introduction year of 1950 [S1].
The available source is mostly experimental rather than descriptive. In tart cherry seed and seedling trials, Northstar had 25.0% non-scarified germination and 54.2% scarified germination, with average germination times of 3.6 and 1.4 weeks respectively [S1]. In field germination after storage, it was recorded at 4.2% after 13 months and 8.3% after 2 months; the 26-month value was missing [S1].
In Experiment III, Northstar survival was reported as 87% in the greenhouse and 100% in the field. Greenhouse replications produced root suckers, while field replications did not [S1].
Summary source basis
This summary currently draws chiefly from Minnesota #1695, with 1 additional supporting sources linked below.
Featured source descriptions
“Northstar differed significantly from Suda and N81755/N87155 for average number of weeks to germination among non-scarified seed.”
— [1]
“Northstar had a significant difference in average number of weeks for germination between non-scarified and scarified seed.”
— [1]
“For seed stored 2 months in the Experiment II field environment, average germination for Northstar was 8.3 percent.”
— [1]
“For non-scarified seed in the Experiment II greenhouse environment, Northstar averaged 3.6 weeks for germination.”
— [1]
Direct parent cultivars
Parentage claim text
Derived or downstream cultivar links
Source-story quotations
Taxonomy context: No family-tree context surfaced yet.
Related cultivars mentioned in source context
Zone assertions are structured rows. Hardiness claim text appears in evidence claims and page-linked citations.
| Zone Min | Zone Max | Zone Text | Assertion Type | Outcome | Location | Confidence |
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| No explicit zone assertion rows yet. | ||||||
No linked media assets.
| Document | Title/URL | Rights | Claims | Relationships | History Events | Pages | Snippets |
|---|---|---|---|---|---|---|---|
| 7 | Minnesota #1695 | unknown | 37 | 0 | 0 | p14 p30 p44 p45 p60 p61 p71 p83 | Northstar row uses monthly separation codes F, C, C, H, FG, D, G-H, FG, H, IJ.; Tart cherry cultivar 'Northstar' is recorded as 69% (0 Mo.), 75% (1 Mo.), 70% (2 Mo.), 71% (3 Mo.), 68% (4 Mo.), 55% (5 Mo.), 58% (6 Mo.), 5 |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 7 | p121 | description_snippet | Northstar row uses monthly separation codes F, C, C, H, FG, D, G-H, FG, H, IJ. | Northstar 69% F 75% C 70% C 71% H 68% FG 55% D 58% G-H 57% FG 56% H 53% IJ | page_block:0.90 |
| 7 | p121 | storage_duration | Tart cherry cultivar 'Northstar' is recorded as 69% (0 Mo.), 75% (1 Mo.), 70% (2 Mo.), 71% (3 Mo.), 68% (4 Mo.), 55% (5 Mo.), 58% (6 Mo.), 57% (7 Mo.), 56% (8 Mo.), and 53% (9 Mo.) | Northstar 69% F 75% C 70% C 71% H 68% FG 55% D 58% G-H 57% FG 56% H 53% IJ | page_block:0.90 |
| 7 | p117 | source_reference_abbreviation | Citation abbreviation is Brooks and Olmo, 1997. | 'Northstar' 1950 Week 18 Brooks and Olmo, 1997 | page_block:0.90 |
| 7 | p117 | release_year_reference | Introduction year on-table is 1950. | 'Northstar' 1950 Week 18 Brooks and Olmo, 1997 | page_block:0.90 |
| 7 | p117 | taxon_context | Listed under Tart Cherry as Prunus cerasus L. | 'Northstar' 1950 Week 18 Brooks and Olmo, 1997 | page_block:0.90 |
| 7 | p107 | description_snippet | Northstar displayed significant variation and lacked a consistent linear decrease in stainability across storage months. | Significant variation was observed, however, within ‘Meteor’, ‘Northstar’, ‘Suda’, and ‘Surecrop’ ... in ‘Meteor’, ‘Northstar’, ‘Suda’, and ‘Surecrop’ there was not a consistent or linear decrease in % stainability as th | page_block:0.90 |
| 7 | p106 | description_snippet | Northstar was explicitly reported as significantly different from Surecrop in initial stainability. | Initial % stainability for tart cherry cultivars ranged from 69% for 'Northstar' to 90% for 'Surecrop'. The tart cherry 'Northstar' differed significantly from 'Surecrop' (Table 2). | page_block:0.90 |
| 7 | p106 | description_snippet | Northstar had initial pollen stainability of 69%, the low end in the tart cherry cultivar set reported on this page (Table 2). | Initial % stainability for tart cherry cultivars ranged from 69% for 'Northstar' to 90% for 'Surecrop'. The tart cherry 'Northstar' differed significantly from 'Surecrop' (Table 2). | page_block:0.90 |
| 7 | p97 | entry_hardiness_observation | For 'Northstar', percent survival was 87 in greenhouse (Grhs.) and 100 in field at the end of Experiment III. | Tart Cherry 'Northstar' 87 100 | page_block:0.90 |
| 7 | p95 | description_snippet | Greenhouse: fraction of replications with suckers = 2/11 and # suckers = 7; Field: fraction of replications with suckers = 0 and # suckers = 0. | 'Northstar' Greenhouse 2/11 7 Field 0 0 | page_block:0.90 |
| 7 | p93 | description_snippet | Herbivore rating reported as 2.8 in Table 8. | Tart Cherry ... 'Northstar' 2.8 | page_block:0.90 |
| 7 | p93 | taxon_context | Listed as a tart cherry entry: Prunus cerasus 'Northstar'. | Tart Cherry ... 'Northstar' 2.8 | page_block:0.90 |
| 7 | p90 | description_snippet | Page shows 'Northstar' measured as initial height 6.1 cm, initial diameter 1.26 mm, change in diameter 2.63 mm, and ΔTCA 10.80 mm². | P. cerasus 'Northstar' 6.1 1.26 2.63 10.80 | page_block:0.90 |
| 7 | p87 | description_snippet | Greenhouse metrics report initial height 27.4 cm, initial stem diameter 5.39 mm, change in stem diameter 0.84 mm, and change in TCA 9.40 mm2. | Tart cherry P. cerasus 'Northstar' 27.4 5.39 0.84 9.40 | page_block:0.90 |
| 7 | p87 | taxon_context | Cultivar listed under Tart cherry (Prunus cerasus). | Tart cherry P. cerasus 'Northstar' 27.4 5.39 0.84 9.40 | page_block:0.90 |
| 7 | p85 | description_snippet | This row is in the Tart Cherry block of Table 5. | Tart Cherry 'Northstar' - (26 months); 4.2 (13 months); 8.3 b (2 months). | page_block:0.90 |
| 7 | p85 | storage_duration | Average field germination for Northstar is 4.2% at 13 months and 8.3% at 2 months; 26-month value is missing; 2-month separation code is 'b'. | Tart Cherry 'Northstar' - (26 months); 4.2 (13 months); 8.3 b (2 months). | page_block:0.90 |
| 7 | p83 | description_snippet | Tart Cherry 'Northstar' records 25.0% non-scarified and 54.2% scarified germination, with mean weeks 3.6 and 1.4; significance markers appear in the row. | Tart Cherry 'Northstar' 25.0 54.2 3.6 a* 1.4 * | page_block:0.90 |
| 7 | p71 | description_snippet | Seed-year marker fields display as x x, and greenhouse/field replication values read as 11 and 3. | ‘Northstar’ Saint Paul, MN x xX 11 3 | page_block:0.90 |
| 7 | p71 | selection_origin_reference | Collection location for this row is Saint Paul, MN. | ‘Northstar’ Saint Paul, MN x xX 11 3 | page_block:0.90 |
| 7 | p61 | source_reference_abbreviation | Brooks and Olmo (1997) source is cited for production and bearing behavior of Northstar. | According to Brooks and Olmo (1997) tart cherry cultivars like ‘Northstar’ and ‘Meteor’ tend to be productive and bear regularly. | page_block:0.90 |
| 7 | p61 | anecdote_snippet | The cultivar is used as an example of tart cherries that may contribute high propagule loads if planted broadly because of reliable yield, despite variable seed viability context. | According to Brooks and Olmo (1997) tart cherry cultivars like ‘Northstar’ and ‘Meteor’ tend to be productive and bear regularly. | page_block:0.90 |
| 7 | p61 | productivity | Named as a productive tart cherry cultivar with regular bearing according to Brooks and Olmo (1997). | According to Brooks and Olmo (1997) tart cherry cultivars like ‘Northstar’ and ‘Meteor’ tend to be productive and bear regularly. | page_block:0.90 |
| 7 | p60 | entry_hardiness_observation | Herbivore-induced vegetative propagation in ‘Northstar’ is discussed as a potential trait affecting invasive spread under repeated apical damage. | one replication of seedlings from ‘Northstar’ produced five root suckers after being damaged by herbivores | page_block:0.90 |
| 7 | p60 | anecdote_snippet | The root-suckering response in ‘Northstar’ occurred with low to moderate herbivore damage. | one replication of seedlings from ‘Northstar’ produced five root suckers after being damaged by herbivores | page_block:0.90 |
| 7 | p60 | anecdote_snippet | ‘Northstar’ seedlings produced five root suckers in one replication following herbivore damage. | one replication of seedlings from ‘Northstar’ produced five root suckers after being damaged by herbivores | page_block:0.90 |
| 7 | p45 | description_snippet | No significant difference among tart cherry cultivars was found for initial height, initial stem diameter, change in stem diameter, or change in TCA in either environment. | Replications started in the greenhouse from 'Northstar' produced one or more root suckers, with 'Northstar' and 'Suda' producing the largest number; in the field % survival reached 100% for 'Northstar'. | page_block:0.90 |
| 7 | p45 | productivity | Field survival for Northstar was highest in the observed range at 100% (Table 10 context). | Replications started in the greenhouse from 'Northstar' produced one or more root suckers, with 'Northstar' and 'Suda' producing the largest number; in the field % survival reached 100% for 'Northstar'. | page_block:0.90 |
| 7 | p45 | anecdote_snippet | Northstar produced one of the largest numbers of root suckers among greenhouse replications. | Replications started in the greenhouse from 'Northstar' produced one or more root suckers, with 'Northstar' and 'Suda' producing the largest number; in the field % survival reached 100% for 'Northstar'. | page_block:0.90 |
| 7 | p44 | description_snippet | In 2-month storage in Experiment II field, Northstar had 8.3% germination, significantly lower than Bali (58.3%). | For non-scarified seed, average number of weeks ... ranged from 1.0 for ‘Bali’ to 3.6 for ‘Northstar’ with ‘Northstar’ differing significantly from ‘Suda’ and ‘N87155’. ... Average % germination among tart cherry seed st | page_block:0.90 |
| 7 | p44 | description_snippet | In Experiment II greenhouse non-scarified tart cherries, Northstar averaged 3.6 weeks and differed significantly from Suda and N87155. | For non-scarified seed, average number of weeks ... ranged from 1.0 for ‘Bali’ to 3.6 for ‘Northstar’ with ‘Northstar’ differing significantly from ‘Suda’ and ‘N87155’. ... Average % germination among tart cherry seed st | page_block:0.90 |
| 7 | p30 | source_reference_abbreviation | Tart cherry classification decision on this page references Brown et al. 1989. | In 2014, fruits of all tart cherry, except for P. cerasus 'Northstar', and all plum germplasm were collected at maturity at the University of Minnesota Excelsior, MN site... 'Northstar' fruits were collected during week | page_block:0.90 |
| 7 | p30 | description_snippet | Experiment III fruit type categories include tart cherry, and 'Northstar' is treated as a tart cherry cultivar within that framework. | In 2014, fruits of all tart cherry, except for P. cerasus 'Northstar', and all plum germplasm were collected at maturity at the University of Minnesota Excelsior, MN site... 'Northstar' fruits were collected during week | page_block:0.90 |
| 7 | p30 | entry_location | 'Northstar' fruit was collected in week 23 (2013) and week 29 (2014) from a tree in Saint Paul, MN at 44°59’3.6744” N, -93°4’7.2546” W. | In 2014, fruits of all tart cherry, except for P. cerasus 'Northstar', and all plum germplasm were collected at maturity at the University of Minnesota Excelsior, MN site... 'Northstar' fruits were collected during week | page_block:0.90 |
| 7 | p14 | source_reference_abbreviation | Brooks and Olmo, 1997 supports this release information. | In the early 1950s, P. cerasus Northstar and Meteor were released by the University of Minnesota Fruit Breeding Farm (Brooks and Olmo, 1997). | page_block:0.90 |
| 7 | p14 | selection_origin_reference | Northstar is identified as a P. cerasus cultivar from University of Minnesota release history. | In the early 1950s, P. cerasus Northstar and Meteor were released by the University of Minnesota Fruit Breeding Farm (Brooks and Olmo, 1997). | page_block:0.90 |
| 7 | p14 | release_year_reference | Northstar was released by the University of Minnesota Fruit Breeding Farm in the early 1950s. | In the early 1950s, P. cerasus Northstar and Meteor were released by the University of Minnesota Fruit Breeding Farm (Brooks and Olmo, 1997). | page_block:0.90 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| description_snippet | Northstar row uses monthly separation codes F, C, C, H, FG, D, G-H, FG, H, IJ. | 0.85 |
| storage_duration | Tart cherry cultivar 'Northstar' is recorded as 69% (0 Mo.), 75% (1 Mo.), 70% (2 Mo.), 71% (3 Mo.), 68% (4 Mo.), 55% (5 Mo.), 58% (6 Mo.), 57% (7 Mo.), 56% (8 Mo.), and 53% (9 Mo.). | 0.97 |
| source_reference_abbreviation | Citation abbreviation is Brooks and Olmo, 1997. | 0.98 |
| release_year_reference | Introduction year on-table is 1950. | 0.98 |
| taxon_context | Listed under Tart Cherry as Prunus cerasus L. | 0.99 |
| description_snippet | Northstar displayed significant variation and lacked a consistent linear decrease in stainability across storage months. | 0.90 |
| description_snippet | Northstar was explicitly reported as significantly different from Surecrop in initial stainability. | 0.93 |
| description_snippet | Northstar had initial pollen stainability of 69%, the low end in the tart cherry cultivar set reported on this page (Table 2). | 0.95 |
| entry_hardiness_observation | For 'Northstar', percent survival was 87 in greenhouse (Grhs.) and 100 in field at the end of Experiment III. | 0.99 |
| description_snippet | Greenhouse: fraction of replications with suckers = 2/11 and # suckers = 7; Field: fraction of replications with suckers = 0 and # suckers = 0. | 0.96 |
| description_snippet | Herbivore rating reported as 2.8 in Table 8. | 0.97 |
| taxon_context | Listed as a tart cherry entry: Prunus cerasus 'Northstar'. | 0.99 |
| description_snippet | Page shows 'Northstar' measured as initial height 6.1 cm, initial diameter 1.26 mm, change in diameter 2.63 mm, and ΔTCA 10.80 mm². | 0.99 |
| description_snippet | Greenhouse metrics report initial height 27.4 cm, initial stem diameter 5.39 mm, change in stem diameter 0.84 mm, and change in TCA 9.40 mm2. | 0.99 |
| taxon_context | Cultivar listed under Tart cherry (Prunus cerasus). | 0.99 |
| description_snippet | This row is in the Tart Cherry block of Table 5. | 0.90 |
| storage_duration | Average field germination for Northstar is 4.2% at 13 months and 8.3% at 2 months; 26-month value is missing; 2-month separation code is 'b'. | 0.93 |
| description_snippet | Tart Cherry 'Northstar' records 25.0% non-scarified and 54.2% scarified germination, with mean weeks 3.6 and 1.4; significance markers appear in the row. | 0.94 |
| description_snippet | Seed-year marker fields display as x x, and greenhouse/field replication values read as 11 and 3. | 0.84 |
| selection_origin_reference | Collection location for this row is Saint Paul, MN. | 0.94 |
| source_reference_abbreviation | Brooks and Olmo (1997) source is cited for production and bearing behavior of Northstar. | 0.95 |
| anecdote_snippet | The cultivar is used as an example of tart cherries that may contribute high propagule loads if planted broadly because of reliable yield, despite variable seed viability context. | 0.74 |
| productivity | Named as a productive tart cherry cultivar with regular bearing according to Brooks and Olmo (1997). | 0.95 |
| entry_hardiness_observation | Herbivore-induced vegetative propagation in ‘Northstar’ is discussed as a potential trait affecting invasive spread under repeated apical damage. | 0.84 |
| anecdote_snippet | The root-suckering response in ‘Northstar’ occurred with low to moderate herbivore damage. | 0.90 |
| anecdote_snippet | ‘Northstar’ seedlings produced five root suckers in one replication following herbivore damage. | 0.98 |
| description_snippet | No significant difference among tart cherry cultivars was found for initial height, initial stem diameter, change in stem diameter, or change in TCA in either environment. | 0.93 |
| productivity | Field survival for Northstar was highest in the observed range at 100% (Table 10 context). | 0.97 |
| anecdote_snippet | Northstar produced one of the largest numbers of root suckers among greenhouse replications. | 0.99 |
| description_snippet | In 2-month storage in Experiment II field, Northstar had 8.3% germination, significantly lower than Bali (58.3%). | 0.96 |
| description_snippet | In Experiment II greenhouse non-scarified tart cherries, Northstar averaged 3.6 weeks and differed significantly from Suda and N87155. | 0.96 |
| source_reference_abbreviation | Tart cherry classification decision on this page references Brown et al. 1989. | 0.92 |
| description_snippet | Experiment III fruit type categories include tart cherry, and 'Northstar' is treated as a tart cherry cultivar within that framework. | 0.96 |
| entry_location | 'Northstar' fruit was collected in week 23 (2013) and week 29 (2014) from a tree in Saint Paul, MN at 44°59’3.6744” N, -93°4’7.2546” W. | 0.99 |
| source_reference_abbreviation | Brooks and Olmo, 1997 supports this release information. | 0.98 |
| selection_origin_reference | Northstar is identified as a P. cerasus cultivar from University of Minnesota release history. | 0.97 |
| release_year_reference | Northstar was released by the University of Minnesota Fruit Breeding Farm in the early 1950s. | 0.99 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||