|Botanical Name:||Solanum tuberosum|
HZPC IPR B.V.
P.O. Box 88
R. P. Graveland, HZPC IPR B.V., Joure, Netherlands
|Agent in Canada:||
19 Regis Duffy Drive
Charlottetown, Prince Edward Island
Variety used for comparison: 'Vivaldi'
Summary: The lightsprout of 'Orlena' is medium size whereas the lightsprout of 'Vivaldi' is small to medium size. The lightsprout tip of 'Orlena' has medium intensity of anthocyanin colouration whereas the lightsprout tip of 'Vivaldi' has an absent or very weak intensity of anthocyanin colouration. The plants of 'Orlena' are taller and mature late season whereas the plants of 'Vivaldi' are shorter and mature mid to late in the season. The frequency of coalescence of the terminal and lateral leaflets is high for 'Orlena' whereas the frequency of coalescence of the terminal and lateral leaflets is low to medium for 'Vivaldi'. The frequency of inflorescences per plant is absent or very low for 'Orlena' whereas the frequency of inflorescences per plant is medium for 'Vivaldi'. The flesh of the tuber of 'Orlena' is medium to dark yellow whereas the flesh of the tuber of 'Vivaldi' is light yellow.
LIGHTSPROUT: medium size, ovoid shape, medium number of root tips, short lateral shoots
LIGHTSPROUT BASE: medium intensity of anthocyanin colouration, absent or low proportion of blue in anthocyanin colouration, medium to dense pubescence
LIGHTSPROUT TIP: small size in relation to base, closed habit, medium intensity of anthocyanin colouration, medium density of pubescence
PLANT: foliage structure is stem to intermediate type where foliage is open to half open and stems are clearly to partly visible, upright growth habit, late maturity
STEM: absent or very low extent of anthocyanin colouration
LEAF: outline is medium to large, open, medium green on upper side, absent or very low extent and absent or very weak intensity of anthocyanin colouration of upper side of midrib, medium presence of secondary leaflets, high frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: leaflet is medium size and narrower than long
LEAFLET: weak waviness of margin, medium depth of veins, dull upper side, pubescent blade at apical rosette
INFLORESCENCE: absent or very low frequency per plant, small
PEDUNCLE: absent or very low extent of anthocyanin colouration
FLOWER BUD: absent or very low extent of anthocyanin colouration
COROLLA (INNER SIDE): absent or very low extent of anthocyanin colouration, absent or very weak intensity of anthocyanin colouration, absent or low proportion of blue in anthocyanin colouration
TUBER: oval shape, medium to dark yellow flesh
TUBER EYE: shallow, yellow at base
TUBER SKIN: yellow, develops weak to medium intensity of anthocyanin colouration in reaction to light
Origin & Breeding History: 'Orlena' originated from a cross conducted in 2000 between 'Emergo' and 'Laura' at HZPC Holland B.V., in Metslawier, Netherlands. 'Orlena' was selected in 2001for its yield, internal and external quality, and resistance against diseases and pests.
Tests & Trials: The comparative trial for 'Orlena' was conducted by Global Agri Services Inc. during the growing season of 2016 in Drummond, New Brunswick. The trial consisted of a single, 19.5 metre long row containing 65 plants spaced 0.3 metres apart for each variety. The distance between rows within the trial was 0.9 metres. Observations and measurements were taken from 10 plants, or 10 parts of plants, of each variety. Mean differences were significant at the 5% probability level based on a paired Student's t-test.
Comparison table for 'Orlena' with reference variety 'Vivaldi'
Plant height (cm)
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