Solanum brevicaule

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 brevicaule

Synonyms:

Series:

EBN:

Ploidy:

Segregation:

Self-compatible:

Cytoplasm Type:

Description

This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977, as S. fendleri).

Condition Level of Resistance Source
 Frost Somewhat resistant Machida-Hirano 2015
 Potato Leaf Roll Virus  Somewhat resistant  Machida-Hirano 2015 (as S. gourlayi)
 Colorado Potato Beetle  Somewhat resistant  Machida-Hirano 2015 (as S. gourlayi)
 Potato Cyst Nematode  Somewhat resistant  Machida-Hirano 2015 (as S. gourlayi)
 Root Knot Nematode  Somewhat resistant  Machida-Hirano 2015 (as S. gourlayi)
 Wart  Somewhat resistant  Machida-Hirano 2015 (as S. leptophyes)
 Soft Rot / Blackleg  Somewhat resistant  Machida-Hirano 2015 (as S. leptophyes)
 Potato Virus X  Somewhat resistant  Machida-Hirano 2015 (as S. leptophyes)
 Aphids Resistant Machida-Hirano 2015 (as S. palustre)

Cultivation

The USDA potato genebank has observed that some accessions of this species are dependent upon GA3 for germination (Bamberg 1999).

Bamberg (2017) found a 86% increase in seed set in this species with supplemental applications of liquid fertilizer at four and seven weeks after potting.

Crosses with S. tuberosum

 

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

Crosses with other species

Jackson (1999) found 4-12% 2n pollen in varieties of this species.

Female Male Berry Set Seed Set Germination Ploidy Source
             
             
             
             
             
             
             
             
             

Glykoalkaloid content

Johns (1990) found glykoalkaloid levels of 23mg/100g to 164mg/100g for eight accessions of S. brevicaule (some as S. sparsipilum).  This is is a large range, with some flirting with edibility but many clearly in the danger zone.  The primary glycoalkaloids were solanine and chaconine.

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