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Solanum x blanco-galdosii

Description

Solanum blanco-galdosii distribution map
Solanum blanco-galdosii distribution map

S. x blanco-galdosii (blanco-galdosii, in honor of Peruvian agronomist Oscar Blanco Galdos) is a nothospecies (a naturally occurring hybrid) from nothern Peru.  It is thought to be a cross of S. chomatophilum x S. peloquinianum and has been experimentally recreated by the International Potato Center (Ochoa 2004).  There may be a little more complexity to the background of this species.  Ames (2010) found that S. x blanco-galdosii grouped genetically with S. jalcae in addition to the previously recognized parent varieties.  This is part of a small group of very interesting dryland species from Peru that have long, thin leaves and a sparse growing habit.

Resistances

This hybrid might be a useful source of drought resistance genes if it could be crossed to domesticated potatoes.  One of its parents, S. peloquinianum, grows under some of the driest conditions of any wild potato.

Vega (1995) found that this species is less frost tolerant than domesticated potato.

Condition Type Level of Resistance Source
Potato Leaf Roll Virus (PLRV)   High Ochoa 2004
       

Glykoalkaloid content

I have sampled some tubers of this species and found them pleasant tasting with no bitter aftertaste.

Images

Solanum blanco-galdosii plant
Solanum blanco-galdosii plant
Solanum blanco-galdosii plant
Solanum blanco-galdosii plant
Solanum blanco-galdosii inflorescence
Solanum blanco-galdosii inflorescence
Solanum blanco-galdosii flower
Solanum blanco-galdosii flower
Solanum blanco-galdosii flower
Solanum blanco-galdosii flower
Solanum x blanco-galdosii plant
Solanum x blanco-galdosii plant
Tubers of the wild potato species Solanum x blanco-galdosii
Solanum x blanco-galdosii tubers
 
       

Cultivation

I have found seeds of this species difficult to germinate.  They might require conditions different from the standard for S. tuberosum.

This hybrid is found at medium elevations in Peru, generally in cool, dry valleys.

Breeding

Crosses with S. tuberosum

Female Male Berry Set
Seed Set Ploidy Germ Source
S. blanco-galdosii S. tuberosum 4x None None     Jackson (1999)
             

Crosses with other species

Female Male Berry Set
Seed Set Ploidy Germ Source
             

References

Solanum x blanco-galdosii at Solanaceae Source

Solanum x blanco-galdosii at GRIN Taxonomy

Solanum x blanco-galdosii at CIP