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Solanum piurae

Description

Solanum piurae distribution Map note

Solanum piurae (piurae refers to the origin, Piura, Peru) is a species of limited distribution in northern Peru.  Plants reach about two and a half feet tall.  Flowers white.  Berries small and round.  Tubers small, white, and mostly moniliform.  Native habitat is rocky slopes from 8,200 to 10,800 feet (2500 to 3300 m) (Correll 1962).

Jarvis (2008) predicts that this species will lose 96% of its present range by 2055 due to climate change, most likely entailing a critical loss of genetic diversity.

Resistances

Condition Type Level of Resistance Source
Leptinotarsa decemlineata (Colorado Potato Beetle) Invertebrate Somewhat resistant Pelletier 2007
Phytophthora infestans (Late Blight) Fungus Resistant Gonzales 2002

Glykoalkaloid content

Images

Berry of the wild potato species Solanum piurae
Solanum piurae berry
Tubers of the wild potato species Solanum piurae
Solanum piurae tubers
   
       
       

Cultivation

I have had a hard time getting tubers from this species.  It appears to begin tuberizing much later than even most short day species.

Breeding

Crosses with S. tuberosum

Watanabe (1991) found that 3.5% (which was one one plant) of varieties of this species produced 2n pollen, which would be effectively tetraploid and 4EBN.

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

Crosses with other species

Female Male Berry Set
Seed Set Ploidy Germ Source
             

References

Solanum piurae at Solanaceae Source

Solanum piurae at GRIN Taxonomy