Solanum chiquidenum

Description

Solanum chiquidenum distribution map
Solanum chiquidenum distribution map

Solanum chiquidenum is a highland Peruvian species. Plants reach nearly three feet tall. Tubers small, white, and moniliform (like beads on a string). White flowers. Native habitat is slopes and fields at 4,900 to 12,500 feet (1500 to 3800 m) (Correll 1962).

The specific epithet, chiquidenum, refers to Chiquiden, Peru.  While there is no completely standardized pronunciation for scientific names, the most common way to pronounce this species is probably so-LAY-num chee-kee-DEH-num.

Resistances

Li (1977) found that this species is frost resistant to 27 degrees F (-3.0 degrees C).

I can confirm that this species showed no resistance to late blight when grown here.

Condition Type Level of Resistance Source
Phytophthora infestans (Late Blight) Fungus Resistant Ochoa 1954
Phytophthora infestans (Late Blight) Fungus Not resistant Gonzales 2002
Phthorimaea operculella (Potato Tuber Moth) Invertebrate Resistant Horgan 2013

Glykoalkaloid content

No information.

Images

Aerial plant of the wild potato species Solanum chiquidenum
Solanum chiquidenum plant
Aerial plant of the wild potato species Solanum chiquidenum
Solanum chiquidenum plant
Aerial plant of the wild potato species Solanum chiquidenum
Solanum chiquidenum plant
Aerial plant of the wild potato species Solanum chiquidenum
Solanum chiquidenum plant
Flower buds of the wild potato species Solanum chiquidenum
Solanum chiquidenum flower buds
Flower of the wild potato species Solanum chiquidenum
Solanum chiquidenum flower
Tubers of the wild potato species Solanum chiquidenum
Solanum chiquidenum tubers

Cultivation

This species is available only as in-vitro plantlets, so I have not yet been able to grow it from seed.

Accessions Evaluated

The following accessions were examined to prepare this profile.  I have evaluated 1/2 accessions currently available from the US Potato Genebank.

PI 365322

Collected in Peru before 1971.  This is an in vitro accession, but happily it is distributed with multiple genotypes, so there is a possibility of producing seed.

PI 473459

I attempted to grow this accession, but the plantlets died of contamination before they could root.  I will probably make a second try in the future.

Breeding

Crosses with S. tuberosum

Female Male Berry Set
 Seed Set Germ Ploidy Source
S. tuberosum 2x Sli S. chiquidenum Yes Moderate Ordoñez 2014

Crosses with other species

Jackson (1999) found 0-24% 2n pollen in varieties of this species.

Female Male Berry Set
 Seed Set Germ Ploidy Source

References

Solanum chiquidenum at Solanaceae Source

Solanum chiquidenum at GRIN Taxonomy

Solanum chiquidenum at CIP