AAC Crimson Tide

Potato

Variety Description

Varieties used for comparison: 'AC Red Island' and 'AAC Red Berry'

Summary: The shape of the lightsprout of 'AAC Crimson Tide' is broad cylindrical while that of 'AC Red Island' is ovoid. The base of the lightsprout for 'AAC Crimson Tide' has a medium density of pubescence while that of 'AC Island Red' has sparse pubescence. The lightsprout of 'AAC Crimson Tide' has medium to many root tips while the lightsprout of 'AAC Red Berry' has few to a medium number of root tips. The stem of 'AAC Crimson Tide' has a medium to high extent of anthocyanin coloration while the stem of 'AAC Red Berry' has a low to medium extent of anthocyanin colouration. The plants of 'AAC Crimson Tide' have a semi-upright growth habit and a low to medium frequency of flowers while the plants of 'AC Red Island' have an upright growth habit and a high frequency of flowers. The inner side of the corolla of 'AAC Crimson Tide' has a medium extent and medium intensity of anthocyanin colouration with an absent or very low proportion of blue while the inner side of the corollas of 'AC Red Island' and 'AAC Red Berry' have a medium to high extent and medium intensity of anthocyanin colouration with a medium proportion of blue. The plants of 'AAC Crimson Tide' mature early in the season while those of 'AC Red Island' mature mid to late in the season and those of 'AAC Red Berry' mature mid-season. The tuber of 'AAC Crimson Tide' is round while the tuber of 'AC Red Island' is long oval.

Description:

LIGHTSPROUT: large, broad cylindrical, medium to many root tips, medium to long lateral shoots
LIGHTSPROUT BASE: strong intensity of anthocyanin colouration, medium proportion of blue in anthocyanin colouration, medium density of pubescence
LIGHTSPROUT TIP: medium size in relation to base, intermediate habit, absent or very weak intensity of anthocyanin colouration, medium density of pubescence

PLANT: intermediate type foliage structure where foliage is half open and stems are partly visible, semi-upright growth habit, low to medium frequency of flowers, matures early in the season

STEM: medium to high extent of anthocyanin colouration along entire stem

LEAF: medium sized outline, closed to intermediate openness, medium presence of secondary leaflets, dark green upper side, high extent and medium to high intensity of anthocyanin colouration on upper side of midrib, absent or very low frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: medium sized, leaflet is narrower than long
LEAFLET: absent or very weak degree of waviness of margin, medium depth of veins, dull to medium glossiness on upper side

PEDUNCLE: low extent of anthocyanin colouration
INFLORESCENCE: medium sized
FLOWER BUD: absent or very low extent of anthocyanin colouration
COROLLA: medium to large
COROLLA (INNER SIDE): medium extent and medium intensity of anthocyanin colouration, absent or very low proportion of blue in anthocyanin colouration

TUBER: round, cream coloured flesh
TUBER EYE: shallow, red at base
TUBER SKIN: red

Origin & Breeding History: 'AAC Crimson Tide' (experimental designations AR2018-11, F13050, 16335-04) originated from a cross made between the variety 'Brigus' and 'Redsen' conducted at the Agriculture and Agri-Food Canada's Fredericton Research and Development Centre, in Fredericton, New Brunswick, in 2011. In 2012, the true potato seed resulting from the cross was sown in a greenhouse at the Agriculture and Agri-Food Canada's Fredericton Research and Development Centre and the resulting seedling tubers planted at the Benton Research Substation of Agriculture and Agri-Food Canada near Fredericton, New Brunswick. A clone designated as 16335-04 was selected in 2013 from a single hill trial based on vine maturity, tuber numbers, tuber skin and flesh colour, tuber set, appearance, shape and size.

Tests & Trials: The comparative trial for 'AAC Crimson Tide' was conducted at Agriculture and Agri-Food Canada's Fredericton Research and Development Centre, in Fredericton, New Brunswick during the 2021 growing season. The field trial consisted of 2 replicates per variety, arranged in a RCB design. Each replicate was a 12 metre long row containing 40 plants spaced 0.25 metres apart with 0.9 metre inter-row spacing. Measurements were taken from 10 plants, or 10 parts of plants, of each variety. Lightsprout characteristics were assessed on 6 tubers harvested from the comparative trial and observed approximately five months after harvest following normal dormancy breakage.

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Potato: 'AAC Crimson Tide' (centre) with reference varieties 'AAC Red Berry' (top) and 'AC Red Island' (bottom)

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Potato: 'AAC Crimson Tide' (centre) with reference varieties 'AAC Red Berry' (left) and 'AC Red Island' (right)