NN12026

Raspberry

Variety Description

Variety used for comparison: 'NR7'

Summary: Vegetative bud burst on the previous season's canes occurs late season for 'NN120626' while it occurs very late season for 'NR7'. During rapid growth, the anthocyanin colouration of the apex of the very young shoot is of medium intensity for 'NN12026' whereas the intensity is weak for 'NR7'. The previous season's canes of 'NN12026' are purplish brown and shorter than those of 'NR7', which are brownish grey. The leaf of 'NN12026' has a strong degree of rugosity whereas the leaf of 'NR7' has a medium degree of rugosity. Flowering begins on the previous season's canes mid-season for 'NN12026' while it begins early season for 'NR7'. The length of the fruiting lateral of 'NN12026' is longer than that of 'NR7'. A single drupe of 'NN12026' is large whereas that of 'NR7' is medium sized. The fruit of 'NN12026' is dark red whereas that of 'NR7' is medium red. The fruit on the previous season's cane begins to ripen very late season for 'NN12026' while it begins to ripen mid-season for 'NR7'.

Description:

PLANT: upright growth habit, very many current season's canes, bears fruit only on previous season's cane in summer, late season vegetative bud burst

VERY YOUNG SHOOT: medium intensity of anthocyanin colouration of apex during rapid growth
CURRENT SEASON`S CANE: absent or very weak bloom, weak intensity of anthocyanin colouration, very short internode, vegetative bud of short to medium length, spines absent
PREVIOUS SEASON'S CANE : very short to short, purplish brown
FRUITING LATERAL: semi-erect attitude, short to medium length

PEDICEL: spines absent
LEAF: medium green colour on upper side, predominantly three leaflets, strong rugosity, relative position of lateral leaflets is free
LEAFLET: concave in cross-section
TERMINAL LEAFLET: medium length, narrow to medium width

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

FRUIT RIPENING: begins very late season on previous season's cane
FRUIT: medium length, medium width, small length to width ratio, broad conical shape in lateral view, dark red, weak degree of glossiness, medium firmness, weak adherence to plug
DRUPE: large
FRUITING PERIOD: short to medium length on previous season's cane

Origin & Breeding History: 'NN12026' was created in the course of a planned breeding program in Lyndon, Washington State, USA. It originated from a controlled cross between 'NR19' (seed parent) and 'ZN06017' (pollen parent) made in 2009. 'NN12026' was initially selected from the resulting population of seedlings grown in the field during the summer of 2012. Selection was based on its dwarf character, spineless cane and fruiting quality. 'NN12026' was asexually propagated by root division in 2014 and by tissue culture in 2015, to establish observation plots and replicated trials. While not suited to commercial production, 'NN12026' was selected for ornamental use such as home garden and containers.

Tests & Trials: The comparative trials for 'NN12026' was conducted in Chilliwack, British Columbia during the 2021 growing season. Plants were transplanted in April of 2017 into raised beds, covered with plastic mulch and irrigated with drip lines. The plots were arranged in a RCB design with 4 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. Measurements were taken from 10 plants or parts of 10 plants of each variety. Mean differences were significant at the 5% confidence probability level based on a paired Student`s t-test.

Comparison tables for 'NN12026' with reference variety 'NR7'

Previous season's cane length (cm)

Fruiting lateral length (cm)

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Raspberry: 'NN12026' (left) with reference variety 'NR7' (right)

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Raspberry: 'NN12026' (left) with reference variety 'NR7' (right)