Oriana

Potato

Variety Description

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

Summary: The lightsprout of 'Oriana' is medium sized whereas it is large for 'Carrera'. The intensity of the anthocyanin colouration at the base of the lightsprout of 'Oriana' is weak to medium whereas it is medium to strong for the lightsprout of 'Carrera'. The lightsprout tip of 'Oriana' has an intermediate habit, very weak to weak intensity of anthocyanin colouration and sparse pubsescence while the lightsprout tip of 'Carrera' has a closed habit, weak to medium intensity of anthocyanin colouration and medium to dense pubescence. The lightsprout of 'Oriana' has few root tips while that of 'Snowden' has a medium number. The leaf of 'Oriana' is medium green while that of 'Snowden' is light green. The plant of 'Oriana' is shorter than that of 'Snowden'. The frequency of flowers per plant is low for 'Oriana' while it is medium for 'Snowden'. The extent of anthocyanin colouration on the inner side of the flower corolla is absent or very weak for 'Oriana' while it is medium for 'Carrera'. The plant of 'Oriana' matures very early to early while both reference varieties mature mid-season. The anthocyanin colouration of skin in reaction to light on the tuber of 'Oriana' is absent to very weak while it is medium to strong for 'Snowden' and weak to medium for 'Carrera'.

Description:

LIGHTSPROUT: medium size, conical to broad cylindrical shape, root tips few in numbers, short lateral shoots
LIGHTSPROUT BASE: weak to medium intensity of anthocyanin colouration, with medium proportion of blue in the anthocyanin colouration, medium pubescence
LIGHTSPROUT TIP: small size in relation to base, intermediate habit, absent to weak intensity of anthocyanin colouration, sparse pubescence

PLANT: foliage structure is an intermediate type where foliage is half open and stems are partly visible, semi-upright growth habit, very early to early maturity

STEM: no anthocyanin colouration

LEAF: medium outline, intermediate to open, medium green colour, absent or very low extent and absent or very weak intensity of anthocyanin colouration on the midrib of the upper side
SECOND PAIR OF LATERAL LEAFLETS: medium size, as broad as long width in relation to length
LEAFLETS: medium to strong presence of secondary leaflets, low frequency of coalescence of terminal and lateral leaflets, weak waviness of margin, medium depth of veins, dull to medium glossiness of upper side, no pubescence on blade at apical rosette

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

TUBER: short oval to oval shape, light yellow flesh
TUBER EYES: shallow depth
TUBER SKIN: yellow, yellow at base of eye, absent or very weak anthocyanin colouration in reaction to light

Origin & Breeding History: The origin of 'Oriana' (experimental designation RZD-95-1683) is the result of the cross made in 1994 between 'Vivaldi' as the female parent and 'BL81-2-259' as the male parent at the HZPC Research & Development Centre in Metslawier, The Netherlands. Selection criteria included internal and external quality, yield and resistances against different diseases and pests.

Tests & Trials: Tests and trials for 'Oriana' were conducted during the 2012 growing season in Drummond, New Brunswick. Each plot per variety consisted of 60 plants grown in a single row with a row length of 18.5 metres and a row spacing of 0.9 metres between rows. Plants were spaced 0.30 metres apart.

Comparison table for 'Oriana' with reference varieties 'Snowden' and 'Carrera'

Plant height (cm)

Click on image for larger view

Potato: 'Oriana' (left) with reference varieties 'Snowden' (centre) and 'Carerra' (right)