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Solanum oxycarpum

Description

Solanum oxycarpum distribution Map note

Solanum oxycarpum (oxycarpum meaning “sharp fruit,” presumably referring to the pointed berries) is a central Mexican species, primarily found in cloud forest habitats.  Plants reach six feet tall.  Flowers blue to purple.  Berries long and conical.  Tubers small and whitish.  Correll (1962) reports that this species does not always form tubers.

Resistances

Condition Type Level of Resistance Source
Leptinotarsa decemlineata (Colorado Potato Beetle) Invertebrate Somewhat resistant Machida-Hirano 2015
Phytophthora infestans (Late Blight) Fungus Somewhat resistant Machida-Hirano 2015

Glykoalkaloid content

Images

       
       
       

Cultivation

Towill (1983) found that seeds of this species stored at 1 to 3 degrees C germinated at 24 to 100% after 27 years.

Breeding

Crosses with S. tuberosum

Female Male Berry Set
Seed Set Ploidy Germ Source
             

Crosses with other species

Watanabe (1991) found that 9.2% of varieties of this species produced 2n pollen, which would be effectively octaploid and 4EBN.

Female Male Berry Set
Seed Set Ploidy Germ Source
             

References

Solanum oxycarpum at Solanaceae Source

Solanum oxycarpum at GRIN Taxonomy