Taxon ID:
Usage Facet: class=edible; edible_score=2.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 15 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=15 | sources=1 | contradictions=0
Claim Types: fruit_size:2, release_year_reference:2, breeding_cross:1, description_snippet:1, productivity:1 | Open evidence summary JSON | Open citation drawer JSON
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Selenga is a pear that the South Dakota Experiment Station lists as a 1939 introduction or selection in its fire blight resistant pear group. It was bred from Saponsky, identified here as Pyrus ussuriensis, crossed with White Doyenne pear. This places it within the station's effort to combine East Asian hardiness and blight resistance with the fruit quality of European pears. The bulletin also says its name comes from the Selenga River in East Siberia.[S1]
The fruit is described as oblong pyriform, about 1 3/4 inches across and 2 1/2 inches deep, yellow, and marked with minute russet dots. The bulletin rates the quality as excellent and gives the season as October.[S1]
The tree is described simply as productive and blight resistant.[S1] The same page says these pear seedlings were part of a breeding program to combine large size and high quality with the hardiness and fire blight immunity of East Siberian and North Chinese pears. It also reports that several new seedlings on the page bore heavy crops and remained free of fire blight even when blight was present in the orchard.[S1]
No direct hardiness zone is given for Selenga itself. Its hardiness is instead suggested by its Pyrus ussuriensis background and by its inclusion in a South Dakota breeding program focused on hardy, fire blight resistant pears for the northern plains.[S1]
Summary source basis
This summary currently draws chiefly from New Hardy Fruits for the Northwest.
Featured source descriptions
“Listed in the table of contents under 'Pears Resistant or Immune to Fire Blight.'”
— [1]
“Indexed to Bulletin 339, page 22.”
— [1]
“Blight-resistant.”
— [1]
“Quality excellent.”
— [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 |
|---|---|---|---|---|---|---|
| No explicit zone assertion rows yet. | ||||||
No linked media assets.
| Document | Title/URL | Rights | Claims | Relationships | History Events | Pages | Snippets |
|---|---|---|---|---|---|---|---|
| 1 | New Hardy Fruits for the Northwest | unknown | 15 | 0 | 0 | p23 | S. D. Valya: Fruit nearly two inches across, round tapering to stem, yellow with minute russet dots; S. D. Valya: 1938; S. D. Valya: 2 inches; S. D. Valya: Lincoln x Russian Sand pear |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 1 | p23 | verbatim_quote | (Selenga, a river in East Siberia.) | (Selenga, a river in East Siberia.) | normalized_exact:1.00 |
| 1 | p23 | verbatim_quote | Tree productive and blight-resistant | Tree productive and blight-resistant | normalized_exact:1.00 |
| 1 | p23 | verbatim_quote | Fruit oblong pyriform, 1 % inches across, 2 Yz inches deep, yellow with minute russet dots, quality excellent, season October | Fruit oblong pyriform, 1 % inches across, 2 Yz inches deep, yellow with minute russet dots, quality excellent, season October | normalized_exact:1.00 |
| 1 | p23 | verbatim_quote | Saponsky (Pyrus Ussuriensis) x White Doyenne pear | Saponsky (Pyrus Ussuriensis) x White Doyenne pear | normalized_exact:1.00 |
| 1 | p23 | verbatim_quote | SELENGA pear-1939 | SELENGA pear-1939 | normalized_exact:1.00 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| entry_basin_calyx | S. D. Valya: Fruit nearly two inches across, round tapering to stem, yellow with minute russet dots | 0.88 |
| release_year_reference | S. D. Valya: 1938 | 0.92 |
| fruit_size | S. D. Valya: 2 inches | 0.58 |
| breeding_cross | S. D. Valya: Lincoln x Russian Sand pear | 0.90 |
| description_snippet | Tree productive and blight-resistant. | 0.54 |
| productivity | productive and blight-resistant | 0.56 |
| fruit_size | 2 1/2 inches | 0.58 |
| entry_basin_calyx | Fruit oblong pyriform, 1 % inches across, 2 Yz inches deep, yellow with minute russet dots, quality excellent, season October | 0.88 |
| structured_entry_json | {"cultivar_name":"Selenga","year":1939,"heading_raw":"SELENGA","locations":[],"crosses":[],"fruit_size_mentions":["1 % inches","2 1/2 inches"],"color_mentions":["yellow"],"morphology_terms":["russet"],"pedigree_phrases": | 0.95 |
| verbatim_quote | (Selenga, a river in East Siberia.) | 0.97 |
| verbatim_quote | Tree productive and blight-resistant | 0.97 |
| verbatim_quote | Fruit oblong pyriform, 1 % inches across, 2 Yz inches deep, yellow with minute russet dots, quality excellent, season October | 0.97 |
| verbatim_quote | Saponsky (Pyrus Ussuriensis) x White Doyenne pear | 0.97 |
| verbatim_quote | SELENGA pear-1939 | 0.97 |
| release_year_reference | 1939 | 0.92 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||