Norland RP09

Potato

Note: The applicant has requested an exemption from compulsory licensing to allow time to multiply and distribute propagating material of the variety. If the exemption is granted, it may be allowed for two years from the date rights are granted for the variety.

Variety Description

Variety used for comparison: 'Norland'

Summary: The second pair of lateral leafets of 'Norland RP09' are large while those of 'Norland' are medium in size. The plants of 'Norland RP09' are taller than those of 'Norland'. The tuber of 'Norland RP09' is round while the tuber of 'Norland' is short oval.

Description:

LIGHTSPROUT: large, ovoid, few root tips, short lateral shoots
LIGHTSPROUT BASE: very strong intensity of anthocyanin colouration, medium proportion of blue in anthocyanin colouration, sparse to medium density of pubescence
LIGHTSPROUT TIP: medium sized in relation to base, intermediate habit between closed and open, weak intensity of anthocyanin colouration, dense pubescence

PLANT: leaf type foliage structure where foliage is closed and stems are not or hardly visible, semi-upright growth habit, low frequency of flowers, matures early in the season

STEM: medium extent of anthocyanin colouration along the entire stem

LEAF: medium sized outline, intermediate openness, weak to medium presence of secondary leaflets, dark green upper side, high extent of weak to medium 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: large, leaflet is narrower than long
LEAFLET: absent or very weak degree of waviness of margin, medium depth of veins, glossy on upper side, pubescence absent on blade at apical rosette

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

TUBER: round, white flesh
TUBER EYE: medium depth, red at base
TUBER SKIN: red

Origin & Breeding History: 'Norland RP09' (experimental designation drn2009rp) originated from a 'Norland' variant selection project initiated in 2009 by Real Potatoes Ltd. in Cornwall, Prince Edward Island. Seed of the variant selections were increased by tissue culture and field multiplication over several years. One selection, designated drn2009rp, was entered into comparative performance trials and designated Norland RP in 2015. 'Norland RP09' was selected based on vine vigor, yield and skin colour.

Tests & Trials: The comparative trial for 'Norland RP09' was conducted by Global Agri Services Inc. in Central Blissville, New Brunswick during the 2021 growing season. The field trial consisted of a single, 20 metre long row per variety. Each row contained 65 plants spaced 0.3 metres apart with inter-row spacing of 1.1 metres. Measurements were taken from 10 plants, or 10 parts of plants, of each variety. The mean difference was significant at the 5% probability level based on a paired Student's t-test. Lightsprout characteristics were assessed on 10 tubers harvested from the comparative trial and observed approximately 2.5 to 3 months after sprouting was promoted by exposing the tubers to an external agent.

Comparison table for 'Norland RP09' with reference variety 'Norland'

Plant height (cm)

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Potato: 'Norland RP09' (right) with reference variety 'Norland' (left)

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Potato: 'Norland RP09' (left) with reference variety 'Norland' (right)

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Potato: 'Norland RP09' (left) with reference variety 'Norland' (right)