Delphine

Potato

Variety Description

Variety used for comparison: 'Chieftain'

Summary: The proportion of blue in the anthocyanin colouration of the lightsprout base of 'Delphine' is medium while it is absent or low in 'Chieftain'. The lightsprout tip of 'Delphine' is medium sized in relation to the base with very sparse pubescence while it is small in 'Chieftain' with dense pubescence. 'Delphine' has a few root tips on the lightsprout while 'Chieftain' has a medium number. The foliage structure of 'Delphine' is an intermediate type while it is a leaf type in 'Chieftain'. 'Delphine' has a taller plant height than 'Chieftain'. 'Delphine' has a medium sized leaf with an open leaf outline while the leaf of 'Chieftain' is large with intermediate openness. The extent of anthocyanin colouration on the midrib of the upper side of the leaf in 'Delphine' is very high while it is high in 'Chieftain'. 'Delphine' has a medium to high frequency of coalescence of the terminal and lateral leaflets while it is absent or very low in 'Chieftain'. The pubesence of the blade at the apical rosette of 'Delphine' is present while it is absent for 'Chieftain'. 'Delphine' has a low frequency of inflorescences per plant while it is high in 'Chieftain'. The inflorescence of 'Delphine' is small and has a medium extent of anthocyanin colouration on the peduncle while the inflorescence of 'Chieftain' is medium sized with a high extent of anthocyanin colouration on the peduncle. 'Delphine' has a weak intensity of anthocyanin colouration on the inner side of the corolla while it is medium to strong in 'Chieftain'. 'Delphine' has a medium to dark yellow flesh of the tuber while it is white in 'Chieftain'.

Description:

PLANT: intermediate type foliage structure, upright to semi-upright growth habit, late maturity

STEM: high to very high extent of anthocyanin colouration along full length

LEAVES: medium size outline, open, medium presence of secondary leaflets, medium to dark green, very high extent and strong intensity of anthocyanin colouration on the midrib of the upper side, medium to high frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: medium size, narrower than long width in relation to length
LEAFLET: very weak to weak waviness of margin, deep veins, medium glossiness of upper side, pubescence on blade at apical rosette

INFLORESCENCE: low frequency per plant, small, medium extent of anthocyanin colouration on peduncle
FLOWER BUD: low extent of anthocyanin colouration
COROLLA: large, high extent of anthocyanin colouration on the inner side, anthocyanin weak in intensity with absent or low proportion of blue

TUBER: oval to long oval, medium to dark yellow flesh
TUBER EYES: shallow depth
TUBER SKIN: red, red at base of eye

LIGHTSPROUT: small to medium size, ovoid, root tips few in number, short lateral shoots
LIGHTSPROUT BASE: strong intensity of anthocyanin colouration, medium proportion of blue in the anthocyanin colouration, medium pubescence
LIGHTSPROUT TIP: medium size in relation to base, closed habit, strong intensity of anthocyanin colouration, sparse pubescence

Origin & Breeding History: The origin of 'Delphine' is the result of the cross made in 1994 between KE 48 and 'Caesar' at Bad Schwartau, Germany. The selection criteria included maturity, yield, disease resistance, processing traits, morphological traits and storage characteristics.

Tests & Trials: Tests and trials were conducted during the 2011 growing season in Drummond, New Brunswick. Plots consisted of 60 plants grown in a single row with a row length of 18.5 meters and a row spacing of 0.9 meters.

Comparison table for 'Delphine' with reference variety 'Chieftain'

Plant height (cm)

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Potato: 'Delphine' (left) with reference variety 'Chieftain' (right)