|Botanical Name:||Solanum tuberosum|
Tel: 31 527 252420
Weg Van Rollecate 19A
Tel: 31 527 252434
Morenelaan 6, 8317AX
Chilliwack, British Columbia
Lange Achte 56, 8629 PL
Simon Brunia, Kraggenburg, Netherlands
|Agent in Canada:||
Solanum International Inc.
4 Legend Trail
Stony Plain, Alberta
|Protective direction granted:||2004-01-13|
|Grant of Rights Date:||2009-02-20|
|Exemption from compulsory licensing:||Yes|
|Expiry date for exemption from compulsory licensing:||2011-02-20|
|Date rights surrendered:||2017-02-20|
Variety used for comparison: 'Bintje'
Summary: 'Focus' has a semi-upright growth habit while it is semi-upright to spreading for 'Bintje'. 'Focus' has a longer and wider leaf than 'Bintje'. The inflorescence is larger on 'Focus' than on 'Bintje'. 'Focus' has weak anthocyanin colouration in the flower bud while it is very strong for 'Bintje'. The tuber shape is oval for 'Focus' while it is oblong for 'Bintje'. 'Focus' has larger light sprouts with longer lateral shoots than 'Bintje'.
PLANT: semi-upright growth habit, stem to intermediate type foliage structure
STEM: medium anthocyanin colouration, thin to medium thickness, nodes with absent or very low swelling
LEAVES: medium green, intermediate silhouette, weak anthocyanin colouration on upper side of rachis and petiole, shallow depth of veins, weak to medium waviness of margin, dull glossiness on upper side, no pubescence on leaves of apical rosette, medium presence of secondary leaflets
TERMINAL LEAFLET: broad ovate shape, acute to acuminate tip, cordate base, absent or very low frequency of coalescence with lateral leaflets
LATERAL LEAFLET: large, medium ovate shape, acute to acuminate tip, cordate base
INFLORESCENCE: medium flowering profusion, medium size, flower buds persist, weak anthocyanin colouration of flower bud
COROLLA: white, very small, prominant star, absent or very weak anthocyanin colouration on peduncle
TUBER SKIN: light beige, yellow at base of eye, weak anthocyanin colouration, rough and flaky texture
TUBER EYES: shallow in depth, evenly distributed, eyebrows slightly prominent
TUBER FLESH: medium yellow, no secondary colour
LIGHT SPROUT: large, ovoid shape, few root tips, medium lateral shoots
BASE: very strong anthocyanin colouration, high proportion of blue in anthocyanin colouration, sparse pubescence
TIP: smaller than base in size, closed habit, strong anthocyanin colouration, medium pubescence
Origin & Breeding History: 'Focus' originated from a cross between 'Agria' and 'BRU82-36-78' in 1986.
Tests & Trials: Trials for 'Focus' were conducted in Drummond, New Brunswick in 2007. All entries were planted in single-row plots. Plots consisted of rows 22 metres long with 30 cm in row spacing between plants and spacing between rows of 91 cm. Measured characteristics were based on 10 measurements. Colour determinations were made using the 1986 RHS colour chart.
Comparison tables for 'Focus' with reference variety 'Bintje'
Leaf length (including petiole) (cm)
Leaf width (cm)
Click on image for larger view
Potato: 'Focus' (right) with reference variety 'Bintje' (left)
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