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AAC Valley Crisp

Potato

Denomination: 'AAC Valley Crisp'
Botanical Name: Solanum tuberosum
Applicant/Holder: Agriculture & Agri-Food Canada, Fredericton
Fredericton Research and Development Centre
850 Lincoln Road, P.O. Box 20280
Fredericton, New Brunswick
E3B 4Z7
Canada
Breeder: T. Richard Tarn, Agriculture & Agri-Food Canada, Fredericton, New Brunswick
Benoit Bizimungu, Agriculture & Agri-Food Canada, Fredericton, New Brunswick
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
107 Science Place
Saskatoon, Saskatchewan
S7N 0X2
Canada
Tel: (306) 385-9316
Application Date: 2017-04-25
Application Number: 17-9191
Grant of Rights Date: 2018-08-16
Certificate Number: 5792
Grant of Rights Termination Date: 2038-08-16

Variety Description

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

Summary: The lightsprout of 'AAC Valley Crisp' is broad cylindrical in shape whereas the lightsprout of 'Andover' and 'Snowden' is spherical in shape. The intensity of anthocyanin colouration of the base of the lightsprout is very strong for 'AAC Valley Crisp' whereas the intensity is weak to medium for 'Andover' and absent or very weak for 'Snowden'. In relation to the base, the tip of the lightsprout of 'AAC Valley Crisp' is medium in size whereas the tip of the lightsprout of 'Andover' is small. The pubescence of the lightsprout of 'AAC Valley Crisp' is of medium density at the tip and the base whereas the pubescence of the lightsprout of 'Andover' is absent or very sparse at the tip and dense at the base. The plants of 'AAC Valley Crisp' are shorter than the plants of both reference varieties. The extent of anthocyanin colouration of the stem of 'AAC Valley Crisp' is low and located along the entire stem whereas there is no anthocyanin colouration of the stem for both reference varieties. The leaf of 'AAC Valley Crisp' has a strong presence of secondary leaflets whereas the leaf of 'Andover' and 'Snowden' has a medium presence of secondary leaflets. The anthocyanin colouration of the upper side of the mid-rib of the leaf of 'AAC Valley Crisp' is of low extent and weak intensity whereas there is no anthocyanin colouration of the upper side of the mid-rib of the leaf of both reference varieties. The frequency of inflorescences per plant is medium to high for 'AAC Valley Crisp' whereas the frequency is low for 'Snowden'. The plants of 'AAC Valley Crisp' mature mid-season to late whereas the plants of 'Andover' mature early to mid-season and the plants of 'Snowden' mature late.

Description:

LIGHTSPROUT: medium size, broad cylindrical shape, few to medium number of root tips, short lateral shoots
LIGHTSPROUT BASE: very strong intensity of anthocyanin colouration, medium proportion of blue in anthocyanin colouration, medium density of pubescence
LIGHTSPROUT TIP: medium size in relation to base, closed habit, weak intensity of anthocyanin colouration, medium density pubescence

PLANT: foliage structure is leaf type where foliage is closed and stems are not or hardly visible, semi-upright growth habit, matures mid-season to late
STEM: low extent of anthocyanin colouration along entire stem

LEAF: outline is medium size, openness is open, strong presence of secondary leaflets, medium green upper side, low extent and weak intensity of anthocyanin colouration of upper side of mid-rib, absent or very low frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: medium size, leaflet is narrower than long
LEAFLET: weak waviness of margin, medium depth of veins, medium degree of glossiness of upper side, blade at apical rosette is pubescent

INFLORESCENCE: medium to high frequency per plant, medium in size
PEDUNCLE: no anthocyanin colouration
FLOWER BUD: no anthocyanin colouration
COROLLA: small to medium size, no anthocyanin colouration on inner side

TUBER: round shape, cream coloured flesh
TUBER EYE: shallow to medium depth, white at base
TUBER SKIN: light beige

Origin & Breeding History: 'AAC Valley Crisp' (experimental designations 'F08011' and 'AR2013-02') originated from a cross made in 2006, in Fredericton, New Brunswick, between the selection designated 'F00084', as the female parent, and the selection designated 'CS7232-4', as the male parent. In 2007, true potato seed from this cross was sown in a greenhouse, and the resulting seedling tubers were planted in 2008 for evaluation and selection, at the Benton Research Substation of Agriculture and Agri-Food Canada, in Fredericton. 'AAC Valley Crisp' was selected in 2008 from a single hill trial at the Benton Research Substation for its vine maturity, tuber appearance, shape and size.

Tests & Trials: The comparative trial for 'AAC Valley Crisp' was conducted during the 2017 growing season at Agriculture and Agri-Food Canada's Fredericton Research and Development Centre, in Fredericton, New Brunswick. The trial consisted of 2 replicates of 30 plants per replicate for each variety, grown in two 7.5 metre length rows spaced 90 centimetres apart. The plants were spaced 25 centimetres apart within the row. The measurements were taken from 10 plants, or parts of plants, of each variety.


Comparison table for 'AAC Valley Crisp' with reference varieties 'Andover' and 'Snowden'

Plant height (cm)

  'AAC Valley Crisp' 'Andover' 'Snowden'
mean 48.0 61.1 61.1
std. deviation 3.5 5.8 4.9

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AAC Valley Crisp
Potato: 'AAC Valley Crisp' (left) with reference varieties 'Andover' (centre) and 'Snowden' (right)

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AAC Valley Crisp
Potato: 'AAC Valley Crisp' (left) with reference varieties 'Andover' (centre) and 'Snowden' (right)

Click on image for larger view
AAC Valley Crisp
Potato: 'AAC Valley Crisp' (top) with reference varieties 'Andover' (centre) and 'Snowden' (bottom)

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