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Solanum cajamarquense

Common Name(s)  
Above ground plant of the wild potato species Solanum cajamarquense
Solanum cajamarquense plant
Codecjm
SynonymsS. cajamarcense
Clade3
SeriesTuberosa
PloidyDiploid (2x)
EBN1
Tuberization PhotoperiodUnknown
Self-compatibleUnknown (probably not)
Genome
PP
Cytoplasm Type 
Citation
Ochoa: Agronomía (Lima) 26(4): 314. 1959.

Description

Solanum cajamarquense distribution map
Solanum cajamarquense distribution map

Solanum cajamarquense (cajamarquense indicating that it comes from the region of Cajamarca) is an unusual speces, with a small distribution in northern Peru.  It grows at mid-elevations of the Andes from about 6500 to 8500 feet.  Plants roughly 16 to 20 inches tall.  Stolons long, exceeding two feet.  Tubers small and moniliform, like beads on a string.  Flowers white.  Berries small, less than 1/2 inch, round, striped.

Li (2018) placed this species in Clade 3, a group of Andean diploids, but closely neighboring Clade 1+2, North American 1EBN diploid species.

Resistances

S. cajamarquense appears to have unique late blight resistance genes (Lindqvist-Kreuze 2010).  Vega (1995) found that this species is about as frost tolerant as domesticated potato.

ConditionTypeLevel of ResistanceSource
Late blightFungusResistantPerez 2007

Glykoalkaloid content

Images

Solanum cajamarquense seedling
Solanum cajamarquense seedling
Solanum cajamarquense plant
Solanum cajamarquense plant
Solanum cajamarquense plant
Solanum cajamarquense plant
Solanum cajamarquense plant
Solanum cajamarquense plant
Solanum cajamarquense flower
Solanum cajamarquense flower
Solanum cajamarquense flowers
Solanum cajamarquense flowers
Above ground plant of the wild potato species Solanum cajamarquense
Solanum cajamarquense plant
 
    

Cultivation

I have found germination of this species to be very slow, taking between one and three months.

The pesticide carbofuran has been observed to reduce flowering in this species (Centeno-diaz 2007).

Breeding

Crosses with S. tuberosum

FemaleMaleBerry Set
Seed SetGermPloidySource
       

Crosses with other species

FemaleMaleBerry Set
Seed SetGermPloidySource
       

References

Solanum cajamarquense at Solanaceae Source

Solanum cajamarquense at GRIN Taxonomy

Solanum cajamarquense at CIP

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