This page is a draft, part of our ongoing wild potato project.  I’ll probably be adding information to the species pages through 2020 at least, but I’m making them public since they may be useful even incomplete.

Solanum pinnatisectum



EBN: 1

Ploidy: Diploid



Cytoplasm Type: W (Hosaka 2014)


This species can survive frosts down to 27 degrees F (-3 C) (Li 1977).

Condition Level of Resistance Source
 Late Blight  Resistant  Machida-Hirano 2015
 Wart  Somewhat resistant  Machida-Hirano 2015
 Bacterial Wilt   Somewhat resistant  Machida-Hirano 2015
 Soft Rot / Blackleg   Somewhat resistant  Machida-Hirano 2015
 Potato Virus Y   Somewhat resistant  Machida-Hirano 2015
 Colorado Potato Beetle   Somewhat resistant  Machida-Hirano 2015
Root Knot Nematode   Somewhat resistant  Machida-Hirano 2015
 Heat   Somewhat resistant  Machida-Hirano 2015
 Drought   Somewhat resistant  Machida-Hirano 2015


The USDA potato genebank has observed that germination of some accessions of this species is inhibited by GA3 (Bamberg 1999).

Crosses with S. tuberosum


Female Male Berry Set Seed Set Germination Ploidy Source
 S. tuberosum S. pinnatisectum None None      Jackson (1999)
 S. pinnatisectum S. tuberosum None None      Jackson (1999)

Crosses with other species

Watanabe (1991) found that 14.8% of varieties of this species produced 2n pollen and Jackson (1999) found 3-13%, which would be effectively tetraploid and 2EBN.

Female Male Berry Set Seed Set Germination Ploidy Source

Glykoalkaloid content