AR2007-2

Potato

Variety Description

Varieties used for comparison: 'Atlantic' and 'Snowden'

Summary: The plant growth habit of 'AR2007-2' is upright whereas it is semi-upright in 'Snowden'. The plants of 'AR2007-2' are taller than those of 'Snowden'. The intensity of anthocyanin colouration on the stem of 'AR2007-2' is medium whereas it is weak in 'Snowden'. The leaf silhouette of 'AR2007-2' is intermediate whereas it is open in 'Snowden'. The lateral leaflets of 'AR2007-2' are small while those of 'Atlantic' are medium to large. Flowering profusion of 'AR2007-2' is low to medium whereas it is high in 'Atlantic'. The inner surface of the corolla of 'AR2007-2' is blue-violet whereas it is white in 'Snowden'. The intensity of anthocyanin colouration on the corolla of 'AR2007-2' is weak whereas it is medium in 'Atlantic' and very weak in 'Snowden'. The tuber skin of 'AR2007-2' is yellow whereas it is light beige on all of the reference varieties. The tuber flesh of 'AR2007-2' is cream whereas it is white on all of the reference varieties. The general shape of the light sprout of 'AR2007-2' is broad cylindrical whereas it is ovoid on all of the reference varieties. The anthocyanin colouration of the light sprout of 'AR2007-2' is medium to strong while it is weak in 'Atlantic' and absent or very weak in 'Snowden'. The proportion of blue in anthocyanin colouration of 'AR2007-2' is absent or low while it is high on 'Atlantic'. The light sprout base of 'AR2007-2' has sparse density of pubescence whereas it is medium on all of the reference varieties.

Description:

PLANT: upright growth habit, stem type foliage structure

STEM: medium anthocyanin colouration, medium thickness of main stem, absent or very low swelling at nodes

LEAVES: light to medium green, intermediate silhouette, weak to medium anthocyanin colouration on upper side of rachis and petiole, absent to very low frequency of coalescence, shallow to medium depth of veins, medium waviness of margin, medium to glossy glossiness of upper side, no pubescence, weak to medium presence of secondary leaflets
TERMINAL LEAFLET: broadly ovate, acuminate tip, truncate base
LATERAL LEAFLET: small size, broadly ovate, acuminate tip, truncate base

INFLORESCENCE: low to medium flowering profusion, medium size
FLOWER BUD: medium persistence, strong intensity of anthocyanin colouration
COROLLA: blue-violet, weak anthocyanin colouration on inner surface, large size, medium prominence of star
PEDUNCLE: weak anthocyanin colouration

TUBER: oval, cream flesh with no secondary colour
TUBER EYES: intermediate depth, evenly distributed, prominent eyebrows
TUBER SKIN: yellow, white at base of eye, netted texture

LIGHT SPROUT: large size, broad cylindrical shape, medium number of root tips, short lateral shoots
LIGHT SPROUT BASE: medium to strong anthocyanin colouration, no blue in anthocyanin colouration, sparse pubescence
LIGHT SPROUT TIP: smaller in size than base, intermediate habit, absent or very weak anthocyanin colouration, sparse pubescence

Origin & Breeding History: 'AR2007-2' (experimental designations 13740-18 and F02032) originated from the cross of 'F91031' and 'ND860-2' made in 2000 in Fredericton, New Brunswick. Selection criteria were clonal selection for adaptation, tuber type and cold temperature chipping quality.

Tests & Trials: Trials for 'AR2007-2' were conducted at Potato Research Centre, Fredericton, New-Brunswick, in 2009. There were two replicates of 30 plants with a plant spacing of 30 cm.

Comparison table for 'AR2007-2' with reference varieties 'Atlantic' and 'Snowden'

Plant height (cm)

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Potato: 'AR2007-2' (left) with reference varieties 'Atlantic' (center) and 'Snowden' (right).

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Potato: 'AR2007-2' (left) with reference varieties 'Atlantic' (center) and 'Snowden' (right).

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Potato: 'AR2007-2' (left) with reference varieties 'Atlantic' (center) and 'Snowden' (right).