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Solanum stenophyllidium

Common Name(s)  
Codesph
SynonymsS. brachistotrichum, S. jamesii, S. nayaritense
Clade1
SeriesPinnatisecta
PloidyDiploid (2x)
EBN1
Self-compatibleNo
Genome
BB
Cytoplasm Type 

Description

Solanum stenophyllidium (stenophyllidium meaning narrow leaves) is a Mexican species, ranging from central Mexico north almost to the US border.  Highly variable in size and form.  Plants range about 9 to 27 inches tall.  Long, thin leaves, similar to many of the Mexican dryland species.

This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977).  Vega (1995) found that this species (as S. brachyostrichum) is less frost tolerant than domesticated potato.

ConditionLevel of ResistanceSource
FrostSomewhat resistantMachida-Hirano 2015 (as S. brachistotrichum)
   

Glykoalkaloid content

Images

    
    
    

Cultivation

Bamberg (2017) found a 56% 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 SetPloidyGermSource
S. tuberosumS. stenophyllidium (as S. brachistotrichum)None None  Jackson (1999)
S. stenophyllidium (as S. brachistotrichum)S. tuberosumNoneNone  Jackson (1999)

Crosses with other species

Watanabe (1991) found that 25% (although only 2 plants) of varieties of this species (as S. brachistotrichum) produced 2n pollen and Jackson (1999) found 7-13%, which would be effectively tetraploid and 2EBN.

FemaleMaleBerry Set
Seed SetPloidyGermSource
       

References

Solanum stenophyllidium at Solanaceae Source

Solanum stenophyllidium at GRIN Taxonomy

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