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 bulbocastanum



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
 Aphids  Resistant  Machida-Hirano 2015
 Potato Cyst Nematode  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



Crosses with S. tuberosum


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

Crosses with other species

Watanabe (1991) found that 5.9% of varieties of this species produced 2n pollen and Jackson (1999) found 2-4%, which would be effectively tetraploid and 2EBN.  S. bulbocastanum x S. cardiophyllum hybrids produced 2n pollen in 9.1% of plants.

Female Male Berry Set Seed Set Germination Ploidy Source

Glykoalkaloid content