|EBN||Unknown (Probably 1EBN)|
|Tuberization Photoperiod||Short day|
|Self-compatible||No (Spooner 1992)|
||Correll: Contrib. Texas Res. Found., Bot. Stud. 1: 10, fig. 4. 1950.|
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).
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|
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.
Crosses with S. tuberosum
Crosses with other species
Watanabe (1991) found no varieties of this species that produced 2n pollen.