AR2007-7

Potato

Variety Description

Varieties used for comparison: 'AC Red Island' and 'Red Pontiac'

Summary: 'AR2007-7' has an upright growth habit while it is semi-upright in 'AC Red Island' and semi-upright to spreading in 'Red Pontiac'. The plant of 'AR2007-7' is taller than 'Red Pontiac' but shorter than 'AC Red Island'. The leaf silhouette of 'AR2007-7' is intermediate whereas it is open in 'AC Red Island'. 'AR2007-7' has small lateral leaflets while it is medium in the reference varieties. Flowering profusion of 'AR2007-7' is low to medium while it is high in the reference varieties. The inner surface of the corolla of 'AR2007-7' has strong to very strong anthocyanin colouration whereas it is medium in 'Red Pontiac'. The light sprout of 'AR2007-7' is broad cylindrical whereas it is spherical in the reference varieties. The base of the light sprout of 'AR2007-7' has strong to very strong anthocyanin colouration while it is medium on 'AC Red Island' and very weak to weak on 'Red Pontiac'. 'AR2007-7' has few root tips of the light sprout tip while it is medium in number in 'AC Red Island' and medium to many in 'Red Pontiac'.

Description:

PLANT: upright growth habit, intermediate type foliage structure

STEM: medium anthocyanin colouration, thin to medium main stem, absent to very low swelling at nodes

LEAVES: medium to dark green, intermediate silhouette, medium to strong anthocyanin colouration on upper side of rachis, medium anthocyanin colouration of petiole, absent to very low frequency of coalescence, deep depth of veins, absent or very weak waviness of margin, medium to glossy glossiness of upper side, medium density of pubescence, medium to stronger presence of secondary leaflets
TERMINAL LEAFLET: broadly ovate, acuminate tip, truncate base
LATERAL LEAFLET: small size, medium ovate, acuminate tip, cordate base

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

TUBER: round, cream flesh with no secondary colour
TUBER EYES: shallow to intermediate depth, evenly distributed, slight prominence of eyebrows
TUBER SKIN: red, red at base of eye, smooth texture

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

Origin & Breeding History: 'AR2007-7' (experimental designations 13766-35 and F02022) originated from the cross of 'N0069-478' and 'Redsen' made in 2000 in Fredericton, New Brunswick. Selection criteria were clonal selection for adaptation, tuber type, light yellow flesh with fresh market quality.

Tests & Trials: Trials for 'AR2007-7' were conducted at Potato Research Centre, Fredericton, New-Brunswick, in 2009. There were two replicates of 30 plants with a plant spacing of 30cm.

Comparison table for 'AR2007-7' with reference varieties 'AC Red Island' and 'Red Pontiac'

Plant height (cm)

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Potato: 'AR2007-7' (left) with reference varieties 'AC Red Island' (center) and 'Red Pontiac' (right)

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Potato: 'AR2007-7' (left) with reference varieties 'AC Red Island' (center) and 'Red Pontiac' (right)