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Solanum clarum

Common Name(s)  
Tubers of the wild potato species Solanum clarum
Solanum clarum tubers
Code clr
Synonyms  
Clade 1
Series Bulbocastana
Ploidy Diploid (2x)
EBN Unknown (Probably 1EBN)
Tuberization Photoperiod Short day
Self-compatible No (Spooner 1992)
Genome
BB
Cytoplasm Type  
Citation
Correll: Contrib. Texas Res. Found., Bot. Stud. 1: 10, fig. 4. 1950.

Description

Solanum clarum distribution map
Solanum clarum distribution map

Solanum clarum (clarum probably means “clear” or “bright” but the context isn’t obvious) is a species primarily of northwest Guatemala, reaching slightly into Mexico.  Plants roughly one half to one foot tall.  Leaves are simple, unusual for a potato. Tubers smaller than an inch in diameter and white to bluish.  Grows in colonies as an understory plant about 10,200 to 12,500 (3100 to 3800 m) (Correll 1962).

Resistances

Vega (1995) found that this species is less frost tolerant than domesticated potato.

Condition Type Level of Resistance Source
Aphids Invertebrate Somewhat resistant  Machida-Hirano 2015
Bacterial Wilt Bacterium Somewhat resistant  Machida-Hirano 2015
Colorado Potato Beetle Invertebrate Somewhat resistant  Machida-Hirano 2015
Potato Cyst Nematode Invertebrate Somewhat resistant  Machida-Hirano 2015

Glykoalkaloid content

No information.

Images

Solanum clarum plant
Solanum clarum plant
Solanum clarum flower
Solanum clarum flower
Solanum clarum berry
Solanum clarum berry
Solanum clarum plant
Solanum clarum plant
Solanum clarum flowers
Solanum clarum flowers
Solanum clarum flower
Solanum clarum flower
Berry of the wild potato species Solanum clarum
Solanum clarum berry
Berries of the wild potato species Solanum clarum
Solanum clarum berries
Tubers of the wild potato species Solanum clarum
Solanum clarum tubers
     

Cultivation

I have found seeds of this species fairly easy to germinate using the standard conditions for S. tuberosum.

Towill (1983) found that seeds of this species stored at 1 to 3 degrees C germinated at 16% after 12 years.

Breeding

Crosses with S. tuberosum

Female Male Berry Set
Seed Set Germ Ploidy Source
             

Crosses with other species

Watanabe (1991) found no varieties of this species that produced 2n pollen.

Female Male Berry Set
Seed Set Germ Ploidy Source
             

References

Solanum clarum at Solanaceae Source

Solanum clarum at GRIN Taxonomy

Solanum clarum at CIP

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