Meibenbino

Rose

Variety Description

Variety used for comparison: 'Meirutral' (Red Sunblaze)

Summary: The entire leaflet of 'Meibenbino' is shorter than that of 'Meirutral'. The upper side of the leaf of 'Meibenbino' is medium to dark green with strong glossiness while that of 'Meirutral' is light to medium green with absent or very weak glossiness. The flower of 'Meibenbino' is a semi-double type, with fewer petals than that of 'Meirutral', which is a double type. The flower diameter of 'Meibenbino' is smaller than that of 'Meirutral'. The profile of the upper part of the flower of 'Meibenbino' is flat while it is convex for that of 'Meirutral'. The sepal extensions of 'Meibenbino' are strong to very strong while those of 'Meirutral' are weak. The outer side of the petal of 'Meibenbino' is dark pink red while that of 'Meirutral' is dark purple red.

Description:

PLANT: shrub type, upright to bushy growth habit
STEM: no anthocyanin colouration on young shoot, few greenish prickles

YOUNG LEAFLET: medium intensity of anthocyanin colouration along margins
LEAF: medium sized, upper side medium to dark green, no anthocyanin colouration, strong degree of glossiness of upper side, weak to medium undulation of margin
TERMINAL LEAFLET: medium elliptic shape, obtuse base and apex

FLOWERING SHOOT: few flowering laterals, very few flowers per lateral
FLOWER BUD: broad ovate
FLOWER: semi-double type, red colour group, sparse density of petals, round shape, flat profile of upper part, convex profile of lower part, medium fragrance, strong to very strong sepal extensions
PETAL: no reflexing of petals one-by-one, obovate shape, absent or very weak reflexing of margin, weak to medium undulation
PETAL (INNER SIDE): one colour lighter towards base (basal spot excluded), red (RHS 46B) with purple red (RHS N57B) towards basal spot
PETAL (OUTER SIDE): dark pink red (RHS 53C-D)
BASAL PETAL SPOT (INNER SIDE): small, light yellow
OUTER STAMEN: predominantly medium yellow filament

Origin & Breeding History: The variety 'Meibenbino' originated from a controlled cross conducted by the breeder, Alain Antoine Meilland, of Meilland International S.A., in Le Cannet des Maures, France. The cross was made in June 2011, between the female parent, an unnamed proprietary seedling derived from the cross between 'Meipaonia' and an unnamed seedling, and the male parent variety 'Radtko'. From the resulting progeny, 'Meibenbino' was selected as a single plant in September 2017 based on its dense growth, glossy dark green foliage, abundant and continuous blooming, dark red coloured flowers and disease resistance.

Tests & Trials: The comparative trial for 'Meibenbino' was conducted outdoors during the summer of 2020 in St. Thomas, Ontario. The trial included 9 plants of the candidate variety and 10 plants of the reference variety. All plants were grown from bare-rooted cuttings and transplanted into 13.6 litre containers in May 2020. Observations and measurements were taken from 10 plants, or 10 parts of plants, of each variety on July 23, 2020. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Meibenbino' with reference variety 'Meirutral'

Entire leaflet length (cm)

Petals per flower (number)

Flower diameter (cm)

Main colour of petal (RHS)

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Rose: 'Meibenbino' (left) with reference variety 'Meirutral' (right)

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Rose: 'Meibenbino' (left) with reference variety 'Meirutral' (right)

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Rose: 'Meibenbino' (left) with reference variety 'Meirutral' (right)