Return to Wild Potato IndexPurchase seeds or tubers of Solanum brevicaule

Solanum brevicaule

Common Name(s)Alcco papa, Apharuma, Atoc papa, Charca, C’kita papa, Ckascke, Jamach’i ch’ogue, Jamppatu papa, Llutu arac, Llutu papa, Papa de Perdiz, Papa de Zorro, Piscco papa
Solanum brevicaule plant
Solanum brevicaule plant
Codebrc
SynonymsS. alandiae, S. anomalocalyx, S. avilesii, S. boliviense subsp. virgultorum, S. brevimucronatum, S. candelarianum, S. famatinae, S. gourlayi, S. hondelmannii, S. hoopesii, S. incamayoense, S. lapazense, S. leptophyes, S. liriunianum, S. oplocense, S. pachytrichum, S. setulosistylum, S. sparsipilum, S. spegazzinii, S. subandigenum, S. sucrense, S. tuberosum subsp. sparsipilum, S. ugentii, S. vidaurrei, S. virgultorum
Clade4
SeriesTuberosa
PloidyDiploid (2x), tetraploid (4x), hexaploid (6x)
EBN2
Tuberization PhotoperiodShort day
Self-compatibleNo
Genome
AA
Cytoplasm TypeW (Hosaka 2009)
Citation
Bitter: Repert. Spec. Nov. Regni Veg. 11:390. 1912

Description

Solanum brevicaule distribution map
Solanum brevicaule distribution map

Solanum brevicaule (brevicaule, meaning short stemmed) is primarily distributed from southern Peru to central Bolivia.  Plants reach about two feet tall, occasionally up to three feet.  Stolons reach 3-4 feet long, perhaps as long as six feet in some cases (Ochoa 1990, as S. sparsipilum).  Tubers round to ovate, one to two inches long, larger in cultivation.  Flowers light blue to dark blue.  Berries round to ovate, typically speckled.  Found up to about the 13,000 foot elevation, but mostly lower.  Often grows in dry environments and has good drought resistance.

Solanum brevicaule is a geographically and morphologically diverse species.  Boundaries between it and its nearest relatives are uncertain.  Twenty species, including diploids, tetraploids, and hexaploids, are often lumped together in a “Solanum brevicaule Complex.”  Van den Berg (1998) and Alvarez (2008) performed comprehensive morphological studies of the species in the S. brevicaule Complex and found little basis for division into more than three species, but inconclusive evidence even for that.  The future probably holds additional taxonomic consolidation of S. brevicaule and its closest relatives.

S. brevicaule is probably not safe to eat, other than in very small amounts and perhaps not even then.  The lines that we have grown here and tasted have dry flesh and thick, chewy skin with a strong flavor characteristic of baking potatoes, but an intensely bitter aftertaste.

1650 seeds per gram.

Resistances

This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977, as S. fendleri).  Vega (1995) found that this species is more frost tolerant than domesticated potato.  It has a dormancy period lasting several months.

ConditionTypeLevel of ResistanceSource
AphidsInvertebrateResistantMachida-Hirano 2015 (as S. palustre)
AphidsInvertebrateNot resistant to moderately resistantAlvarez 2006 (as S. hondelmannii and S. spegazzinii)
Colorado Potato BeetleInvertebrateSomewhat resistantMachida-Hirano 2015 (as S. gourlayi)
FrostAbioticSomewhat resistantMachida-Hirano 2015
Potato Cyst NematodeInvertebrateSomewhat resistantMachida-Hirano 2015 (as S. gourlayi)
Potato Leafroll VirusVirusSomewhat resistantMachida-Hirano 2015 (as S. gourlayi)
Potato Virus XVirusResistantHorvath 1989 (as S. alandiae)
Potato Virus XVirusSomewhat resistantMachida-Hirano 2015 (as S. leptophyes)
Potato Virus YVirusResistantHorvath 1989 (as S. alandiae)
Rhizoctonia solaniFungusSomewhat resistantOchoa 1990 (as S. leptophyes)
Root Knot NematodeInvertebrateSomewhat resistantMachida-Hirano 2015 (as S. gourlayi)
Soft Rot / BlacklegBacteriumSomewhat resistantMachida-Hirano 2015 (as S. leptophyes)
Tobacco Rattle VirusVirusResistantHorvath 1989 (as S. alandiae)
WartFungusSomewhat resistantMachida-Hirano 2015 (as S. leptophyes)

Glykoalkaloid content

Johns (1990) found glykoalkaloid levels of 23mg/100g to 164mg/100g for eight accessions of S. brevicaule (some as S. sparsipilum).  The primary glycoalkaloids were solanine and chaconine. Van Gelder (1988) found TGA levels ranging from 95 to 175 mg / 100 g for S. brevicaule, 113 to 163 as S. gourlayi, 71 to 135 mg / 100g as S. leptophyes, 40 to 60 mg / 100 g as S. oplocense, 17 to 220 as S. spegazzinii, and 77 to 156 as S. sucrense.  Collapsing all the synonyms gives a total range of 17 to 220 mg / 100 g.  This is is a large range, with some flirting with edibility but many clearly in the danger zone.

Images

Solanum brevicaule tubers
Solanum brevicaule tubers
Solanum brevicaule tubers
Solanum brevicaule tubers
Solanum brevicaule plant
Solanum brevicaule plant
Solanum brevicaule plant
Solanum brevicaule plant
Solanum brevicaule plant
Solanum brevicaule plant
Solanum brevicaule flowers
Solanum brevicaule flowers
Solanum brevicaule flower
Solanum brevicaule flower
Solanum brevicaule flowers and pollen
Solanum brevicaule flowers and pollen
Solanum brevicaule berries
Solanum brevicaule berries
Solanum brevicaule seeds
Solanum brevicaule seeds
  

Cultivation

I have found seeds of this species easy to germinate using the standard conditions for S. tuberosum, although sometimes slow.

Due to the length of the stolons, most growers will want to contain the plants in some way.  We grow wild potatoes with long stolons in buried fabric pots, which prevents them from getting out of control.  A 5 gallon fabric pot works well for most wild potatoes.

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.

Breeding

Crosses with S. tuberosum

FemaleMaleBerry Set
Seed SetGermPloidySource
S. brevicauleS. tuberosum 2xModerateModerate  Ochoa 1990
S. brevicauleS. tuberosum 4xNoneNone  Jackson (1999)
S. tuberosumS. brevicauleLowMinimal  Jackson (1999)

Crosses with other species

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

FemaleMaleBerry Set
Seed SetGermPloidySource
S. acauleS. brevicauleHighHigh  Ochoa 1990
S. berthaultii (as S. tarijense)S. brevicaule (as S. leptophyes)LowLow  Ochoa 1990
S. boliviense (as S. megistacrolobum)S. brevicaule (as S. leptophyes)YesNo  Ochoa 1990
S. brevicaule (as S. alandiae)S. acauleModerateModerate  Ochoa 1990
S. brevicaule (as S. alandiae)S. berthaultiiHighHigh  Ochoa 1990
S. brevicaule (as S. alandiae)S. bolivienseHighHigh  Ochoa 1990
S. brevicauleS. candolleanumHighHigh  Ochoa 1990
S. brevicaule (as S. alandiae)S. chacoenseYesYes  Ochoa 1990
S. brevicaule (as S. alandiae)S. huancabambenseHighHigh  Ochoa 1990
S. brevicauleS. infundibuliformeLowLow  Ochoa 1990
S. brevicaule (as S. alandiae)S. microdontumLowLow  Ochoa 1990
S. brevicaule (as S. leptophyes)S. neovaviloviiModerateModerate  Ochoa 1990
S. brevicauleS. raphanifoliumHighHigh  Ochoa 1990
S. brevicaule (as S. alandiae)S. raquialatumHighHigh  Ochoa 1990
S. infundibuliformeS. brevicaule (as S. alandiae)LowLow  Ochoa 1990
S. microdontumS. brevicaule (as S. alandiae)LowLow  Ochoa 1990

References

Solanum brevicaule at Solanaceae Source

Solanum brevicaule at GRIN Taxonomy

Solanum brevicaule at CIP

Leave a Reply