DrisStrawSeventyFive

Strawberry

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

Varieties used for comparison: 'DrisStrawTwentyOne' (Amado) and 'DrisStrawSixty' (Pomona)

Summary: The plants of 'DrisStrawSeventyFive' begin flowering and fruit ripening early in the season whereas the plants of 'DrisStrawTwentyOne' begin flowering and fruit ripening mid-season and those of 'DrisStrawSixty' begin flowering and fruit ripening very late in the season. The plants of 'DrisStrawSeventyFive have strong vigour whereas the plants of 'DrisStrawTwentyOne' have medium to strong vigour and those of 'DrisStrawSixty' have medium vigour. The base of the terminal leaflet of 'DrisStrawSeventyFive' is acute in shape whereas those of the reference varieties are obtuse.

Description:

PLANT: day neutral bearing type, semi-upright growth habit, medium density foliage, strong vigour
STOLON: absent or very few, absent or very weak intensity of anthocyanin colouration, absent or sparse pubescence

PETIOLE: short, horizontal attitude of hairs
STIPULE: absent or very weak intensity of anthocyanin colouration
LEAF: small to medium sized, dark green on upper side, absent or weak blistering, absent or weak glossiness on upper side, no variegation
TERMINAL LEAFLET: moderately longer than wide, acute base, serrate and crenate margin, straight in cross-section

FLOWERING: begins early
INFLORESCENCE: positioned above foliage, many flowers
PEDICEL: slightly outwards attitude of hairs
FLOWER: calyx same size as corolla, touching petal arrangement, stamen present
PETAL: length equal to width, white inner side

CALYX: attachment inserted in fruit, diameter same size as fruit, downwards attitude of sepals, weak adherence to fruit
FRUIT: begins ripening early, length equal to width, small to medium sized, rhomboid and conical shaped, slight difference in shape between terminal fruit and other fruit, firm, absent or small cavity
FRUIT SURFACE: dark red, even to slightly uneven colour distribution, strong glossiness, even or very slightly uneven, absent or very narrow band without achenes, achenes positioned above surface
FRUIT FLESH: light pink, white core

Origin & Breeding History: 'DrisStrawSeventyFive' originated from a cross conducted in 2011 in Ventura County, California, USA. The cross was made between the proprietary female parent '54S259' and the male parent 'DrisStrawFiftySix'. A single plant was selected for asexual propagation by vegetative cuttings in 2012 in McArthur, Shasta County, California. Selection criteria was for fruit size, plant canopy growth, and truss length. Further propagation and testing was conducted from 2012 to 2018.

Tests & Trials: Trials for 'DrisStrawSeventyFive' were were conducted in Chilliwack, British Columbia during the 2021 growing season. The plots were transplanted in April 2020 into plastic mulch with drip irrigation. The plots were arranged in a RCB design. Each variety consisted of 3 replicates per variety with 10 plants per replicate for a total of 30 plants of each variety. Plants were spaced approximately 20 centimetres apart within the row and spaced approximately 3 metres apart between rows. Measured characteristics were based on 10 measurements.

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Strawberry: 'DrisStrawSeventyFive' (left) with reference varieties 'DrisStrawTwentyOne' (centre) and 'DrisStrawSixty' (right)