Taxonomy of cultivated potatoes (Solanum section Petota: Solanaceae)
Creators: name: OVCHINNIKOVA, ANNA
name: KRYLOVA, EKATERINA
name: GAVRILENKO, TATJANA
name: SMEKALOVA, TAMARA
name: ZHUK, MIKHAIL
name: KNAPP, SANDRA
name: SPOONER, DAVID M.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy

description: KEY TO CULTIVATED POTATO LANDRACES The following key and descriptions, modified from Huamán &amp; Spooner (2002), highlight typical traits. The qualifier terms ‘mostly’ or ‘usually’ could be employed throughout the key, but are not used for simplicity. 1. Plants semi-rosette to semi-erect; pedicel articulation indistinct to only slightly distinct, located in the upper one-fifth of the pedicel; frost tolerant (of putative hybrid origin with the frost-tolerant species <i>S. acaule</i> or <i>S. megistacrolobum</i>)...............................................................................................................................2 1. Plants ascending to erect; pedicel articulation evident, located below the upper one-fifth of the pedicel; generally not frost tolerant...............................................................................................................................4 2. Most distal lateral leaβets broadly decurrent; plants diploid.........................................1. <i>S. ajanhuiri</i> (Fig. 1) 2. Most distal lateral leaβets not or only slightly decurrent; plants triploid or pentaploid..................................3 3. Plants low growing, 62–98 cm tall; triploid..............................................................3. <i>S. juzepczukii</i> (Fig. 3) 3. Plants of medium height, 96–125 cm tall; pentaploid.................................................2. <i>S. curtilobum</i> (Fig. 2) 4. Plants adapted to short-day βowering and tuberization; upper leaves diverged from stem at 40°–50°; diploid, triploid or tetraploid................................................................... 4. <i>S. tuberosum Andigenum</i> group (Fig. 4) 4. Plants adapted to long-day βowering and tuberization; upper leaves diverged from stem at angle of 50°–90°........................................................................................................................................................... 5 5. Landrace populations native to south-central Chile..........................4. <i>S. tuberosum Chilotanum</i> group (Fig. 5) 5. Modern varieties originally derived from breeding populations in the Northern Hemisphere, now grown worldwide; of many complex hybrid origins from the <i>Chilotanum</i> and <i>Andigenum</i> groups and other cultivar groups bred up to the earlier 20th century.............................................................4. <i>S. tuberosum</i> relatively modern varieties
description: Published as part of <i>OVCHINNIKOVA, ANNA, KRYLOVA, EKATERINA, GAVRILENKO, TATJANA, SMEKALOVA, TAMARA, ZHUK, MIKHAIL, KNAPP, SANDRA &amp; SPOONER, DAVID M., 2011, Taxonomy of cultivated potatoes (Solanum section Petota: Solanaceae), pp. 107-155 in Botanical Journal of the Linnean Society 165 (2)</i> on page 114, DOI: 10.1111/j.1095-8339.2010.01107.x, http://zenodo.org/record/6326420
description: {"references": ["Huaman Z, Spooner DM. 2002. Reclassification of landrace populations of cultivated potatoes (Solanum sect. Petota). American Journal of Botany 89: 947 - 965."]}