DrisStrawSeventySeven

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: 'DrisStrawThirtySix' (Laredo) and 'DrisStrawTwentySeven' (Marguis)

Summary: The plants of 'DrisStrawSeventySeven' begin flowering and fruit ripening late in th season whereas those of the reference varieties begin flowering and fruit ripening mid-season. The fruit of 'DrisStrawSeventySeven' is large fruit whereas the fruit of 'DrisStrawThirtySix' is medium to large and that of 'DrisStrawTwentySeven' is medium sized. The fruit of 'DrisStrawSeventySeven' has a band of medium width without achenes whereas the fruit of 'DrisStrawThirtySix' has an absent or very narrow to narrow band without achenes and that of 'DrisStrawTwentySeven' has a narrow band without achenes.

Description:

PLANT: day neutral bearing type, semi-upright growth habit, dense foliage, strong vigour
STOLON: many, medium intensity of anthocyanin colouration, medium density of pubescence

PETIOLE: medium length, horizontal attitude of hairs
STIPULE: weak intensity of anthocyanin colouration
LEAF: medium size, dark green on upper side, absent or weak blistering and glossiness on upper side, no variegation
TERMINAL LEAFLET: length equal to width, acute base, serrate and crenate margin, straight in cross-section

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

CALYX: raised attachment, diameter same size as fruit, upwards attitude of sepals, weak adherence to fruit
FRUIT: begins ripening late, moderately longer than wide, large, conical and wedged shaped, moderate difference in shape between terminal fruit and other fruit, firm, absent or small cavity
FRUIT SURFACE: medium red, even or slightly uneven colour distribution, medium to strong glossiness, strongly uneven, medium width of band without achenes, achenes positioned below surface
FRUIT FLESH: medium red, medium red core

Origin & Breeding History: DrisStrawSeventySeven' originated from a cross conducted in 2011 in Ventura County, California. The cross was made between the proprietary female parent '92T351' and the proprietary male parent '69U114'. A single plant was selected for asexual propagation by vegetative cuttings in 2012 in Ventura County, California. Selection criteria was for fruit size, yield, flavour, and plant architecture. Further propagation and testing was conducted from 2012 to 2019.

Tests & Trials: Trials for 'DrisStrawSeventySeven' 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: 'DrisStrawSeventySeven' (left) with reference varieties 'DrisStrawThirtySix' (centre) and 'DrisStrawTwentySeven' (right)