DrisRaspTwentyOne

Raspberry

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: 'Maravilla' and 'DrisRaspSeven' (Esperanza)

Summary: The current season's cane of 'DrisRaspTwentyOne' has weak to medium intensity of anthocyanin colouration whereas both reference varieties have an absent or very weak intensity of anthocyanin colouration. The current season's cane of 'DrisRaspTwentyOne' has purple spines whereas 'Maravilla' has brown spines and 'DrisRaspSeven' has purplish brown spines. The leaf of 'DrisRaspTwentyOne' has predominantly five leaflets whereas 'Maravilla' has three leaflets and 'DrisRaspSeven' has equally three and five leaflets. The pedicel of 'DrisRaspTwentyOne' has absent or very few spines whereas 'DrisRaspSeven' has a medium number of spines. The peduncle of 'DrisRaspTwentyOne' has a medium intensity of anthocyanin colouration whereas both reference varieties have a very weak intensity of anthocyanin colouration. The fruit of 'DrisRaspTwentyOne' is narrow to medium width whereas the fruit of both reference varieties is medium to broad.

Description:

PLANT: upright growth habit, medium to many current season's canes, bears fruit on previous season's cane in summer and on current season's cane in autumn, early vegetative bud burst

VERY YOUNG SHOOT: weak intensity of anthocyanin colouration of apex during rapid growth, early to mid-season emergence
CURRENT SEASON`S CANE: absent of very weak bloom, weak to medium intensity of anthocyanin colouration, medium to long internode length, medium length vegetative bud, spines present
DORMANT CANE: greyish brown
SPINES ON CURRENT SEASON'S CANE: sparse to medium dense, small base, short, purple
FRUITING LATERAL ON PREVIOUS SEASON'S CANE: semi-erect

PEDICEL: absent or very few number of spines
LEAF: medium to dark green colour on upper side, predominantly five leaflets, medium to strong rugosity, relative position of lateral leaflets is free
LEAFLET: concave in cross-section

FLOWERING: begins early to mid-season on previous season's cane and very early to early on current season's cane
PEDUNCLE: medium intensity of anthocyanin colouration
FLOWER: medium sized

FRUIT RIPENING: begins early to mid-season on previous and current season's canes
FRUIT: long, narrow to medium width, medium to large length to width ratio, medium conical shape in lateral view, dark red, medium degree of glossiness, firm to very firm, weak to medium adherence to plug
DRUPE: medium sized
FRUITING PERIOD: medium to long on previous and current season's canes

Origin & Breeding History: 'DrisRaspTwentyOne' originated from a controlled cross conducted between 'DrisRaspTwelve' (female parent) and the proprietary line 'RC448.4' (male parent) in Santa Cruz County, California, USA in April 2014. A single seedling of 'DrisRaspTwentyOne' was selected in October 2016 based on fruit size and flavour. 'DrisRaspTwentyOne' was further propagated by root cuttings from 2016 to 2020 in Santa Cruz County, California, USA.

Tests & Trials: The comparative trial for 'DrisRaspTwentyOne' was conducted in Chilliwack, British Columbia during the 2022 growing season. Plants were transplanted in April 2021 into raised beds, covered with plastic mulch and irrigated with drip lines. The plots were arranged in a RCB design with four replicates. Each replicate consisted of 3 plants for a total of 12 plants of each variety. Plants were spaced approximately 90 centimetres apart within rows and 3 metres between rows. A total of 20 measurements were taken from each variety.

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Raspberry: 'DrisRaspTwentyOne' (centre) with reference varieties 'DrisRaspSeven' (left) and 'Maravilla' (right)

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Raspberry: 'DrisRaspTwentyOne' (centre) with reference varieties 'DrisRaspSeven' (left) and 'Maravilla' (right)