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Solanum kurtzianum

Common Name(s)   A black and white photo of a tray of Solanum brevicaule tubers. They are about 1 to 2 inches long, oval, and similar in form to baking potatoes.
Code ktz
Synonyms S. improvidum, S. macolae, S. ruiz-lealii, S. velascanum
Clade 4
Series Tuberosa
Ploidy Diploid (2x)
EBN 2
Tuberization Photoperiod
Short day
Self-compatible No
Genome
AA
Cytoplasm Type  
Citation
Bitter & Wittmack: Bot. Jahrb. Syst. 50, Beibl. 548. 1914. 

Description

Solanum kurtzianum distribution map
Solanum kurtzianum distribution map

Solanum kurtzianum (kurtzianum, in honor of German botanist Fritz Kurtz) is a wild potato species from Argentina.

Subramanian (2017) found that at least some accessions of this species have unusually low calcium and potassium content and extremely high dry matter.

Resistances

This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977).  Vega (1995) found that this species is less frost tolerant than domesticated potato.

In an in vitro test of 10 wild diploid species, S. kurtzianum was one of the most heat resistant and yielded more under warm temperatures (Guedes 2019).

Condition Type Level of Resistance Source
Colorado Potato Beetle Invertebrate Somewhat resistant Machida-Hirano 2015
Drought Abiotic Somewhat resistant Machida-Hirano 2015
Early Blight Fungus Somewhat resistant Jansky 2008
Frost Abiotic Somewhat resistant Machida-Hirano 2015
Golden nematode (G. rostochiensis) Invertebrate Somewhat resistant Castelli 2003
Heat Abiotic Somewhat resistant Machida-Hirano 2015
Late Blight Fungus Not resistant Bachmann-Pfabe 2019
Potato Cyst Nematode (G. pallida) Invertebrate Somewhat resistant Castelli 2003
Potato Cyst Nematode (G. pallida) Invertebrate Not resistant Bachmann-Pfabe 2019
Potato Leaf Roll Virus Virus Somewhat resistant Machida-Hirano 2015
Potato Virus Y Virus Somewhat resistant Cai 2011
Root Knot Nematode Invertebrate Somewhat resistant Machida-Hirano 2015
Soft Rot / Blackleg Bacterium Somewhat resistant Chung 2011, Machida-Hirano 2015
Wart Fungus Somewhat resistant Machida-Hirano 2015

Glykoalkaloid content

No information.

Images

       
       
       

Cultivation

I have found this species difficult to germinate.  It might require conditions different than the standard for S. tuberosum.

Towill (1983) found that seeds of this species stored at 1 to 3 degrees C germinated at 72 to 96% after 26 years.

Bamberg (1995) found that at least some accessions of S. kurtzianum are able to produce a significant amount of viable pollen even when temperatures exceed 100 degrees F for several hours during the day.  Flowering was reduced under these conditions.

Breeding

Jackson (1999) found 6% 2n pollen from varieties of this species.

Crosses with S. tuberosum

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

Crosses with other species

Female Male Berry Set
Seed Set Germ Ploidy Source
             

References

Solanum kurtzianum at Solanaceae Source

Solanum kurtzianum at GRIN Taxonomy

Solanum kurtzianum at CIP

 

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