Solanum tarnii

Description

Solanum tarnii distribution map
Solanum tarnii distribution map

Solanum tarnii is native to Mexico, primarily Hidalgo.  Plants roughly 2 to 3 feet tall.  White flowers.  Very little has been written about this species.

The specific epithet, tarnii, honors Australian botanist Bruce Tarn.  While there is no completely standardized pronunciation for scientific names, the most common way to pronounce this species is probably so-LAY-num TAHR-nee-eye.

Jarvis (2008) predicts that this species will become extinct in the wild by 2055 due to climate change.

Resistances

Vega (1995) found that this species is more frost tolerant than domesticated potato.

Condition Type Level of Resistance Source
Globodera pallida (Pale Cyst Nematode) Invertebrate Not resistant Bachmann-Pfabe 2019
Leptinotarsa decemlineata (Colorado Potato Beetle) Invertebrate Resistant Pelletier (2007)
Phytophthora infestans (Late Blight) Fungus Somewhat resistant Bachmann-Pfabe 2019
Potato Virus Y (PVY), C Strain Virus Resistant Takacs 1999

Glykoalkaloid content

No information is available and I have not tasted this species yet.

Images

Solanum tarnii plant
Solanum tarnii plant
Solanum tarnii plant
Solanum tarnii plant
Solanum tarnii flower
Solanum tarnii flower
Solanum tarnii flower buds
Solanum tarnii flower buds
Flower of the wild potato species Solanum tarnii
Solanum tarnii flower
Tubers of the wild potato species Solanum tarnii
Solanum tarnii tubers
Seedlings of the wild potato species Solanum tarnii
Solanum tarnii seedlings

Cultivation

Breeding

Crosses with S. tuberosum

Female Male Berry Set
Seed Set Ploidy Germ Source
S. tuberosum (4x) S. tarnii None None Jackson (1999)
S. tarnii S. tuberosum (4x) None None Jackson (1999)

Crosses with other species

Jackson (1999) found that 7-13% of varieties of this species produced 2n pollen, which would be effectively tetraploid and 2EBN.

Female Male Berry Set
Seed Set Ploidy Germ Source

References

Solanum tarnii at Solanaceae Source

Solanum tarnii at GRIN Taxonomy