Solanum candolleanum

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 candolleanum

Synonyms:

Series:

EBN:

Ploidy:

Segregation:

Self-compatible:

Cytoplasm Type: M, P (Hosaka 2014)

Description

This species can survive frosts down to 24 degrees F (-4.5 C) (Li 1977, as S. canasense).

Condition Level of Resistance Source
 Scab  Somewhat resistant  Machida-Hirano 2015 (as S. bukasovii)
 Potato Leaf Roll Virus  Somewhat resistant  Machida-Hirano 2015 (as S. bukasovii)
 Aphids  Somewhat resistant  Machida-Hirano 2015
 Potato Cyst Nematode  Somewhat resistant  Machida-Hirano 2015 (as S. bukasovii)
 Root Knot Nematode  Somewhat resistant  Machida-Hirano 2015
 Frost  Somewhat resistant  Machida-Hirano 2015
 Wart Somewhat resistant Machida-Hirano 2015
 Potato Virus Y Somewhat resistant Machida-Hirano 2015
 Colorado Potato Beetle Somewhat resistant Machida-Hirano 2015
Drought Somewhat resistant Machida-Hirano 2015

Cultivation

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

Crosses with S. tuberosum

 

Female Male Berry Set Seed Set Germination Ploidy Source
 S. tuberosum S. candolleanum (including many synonyms) Low Minimal     Jackson (1999)
 S. candolleanum (inlcuding many synonyms) S. tuberosum Minimal Minimal     Jackson (1999)
             
             
             
             
             
             
             

Crosses with other species

Jackson (1999) found 3-12% 2n pollen for varieties of this species.

Female Male Berry Set Seed Set Germination Ploidy Source
             
             
             
             
             
             
             
             
             

Glykoalkaloid content

Johns (1990) found glycoalkaloid levels ranging from mostly from 25 to 78mg/100g in four accessions of S. candolleanum (as S. bukasovii and S. canasense).  They also noted an outlier at 9mg/100g (PI 473492).  Some have levels are just above the safety limit for S. tuberosum at 20mg/100g and those are probably safe to eat in small amounts.  Some varieties may even be as safe as S. tuberosum if the 9mg/100g outlier is any indication.  The primary glycoalkaloids found were solanine and chaconine.

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