WNPETSTPER23

Petunia

Variety Description

Variety used for comparison: 'USTUN69002' (Supertunia Daybreak Charm)

Summary: The plants of 'WNPETSTPER23' are shorter than those of 'USTUN69002'. The corolla of 'WNPETSTPER23' is wider than that of 'USTUN69002'. The corolla of 'WNPETSTPER23' has red veins whereas the corolla of 'USTUN69002' has pink veins. When fully opened, the inner side of the corolla of 'WNPETSTPER23' is mainly red pink with medium yellow brown and orange red secondary colour while it is mainly medium purple with light violet and white secondary colour for that of 'USTUN69002'. The corolla lobe apex of 'WNPETSTPER23' has a cuspidate shape whereas that of 'USTUN69002' has a truncate shape. The inner side of the corolla tube of 'WNPETSTPER23' is medium yellow brown while it is medium yellow for 'USTUN69002'. The outer side of the corolla tube of 'WNPETSTPER23' is light yellow brown with grey brown near the base whereas that of 'USTUN69002' is light yellow green with no secondary colour.

Description:

PLANT: upright to spreading growth habit, absent or few number of flowers with different size of area of secondary colour

LEAF BLADE: ovate shape, acute apex, no variegation, medium green

PEDICEL: absent or very weak intensity of anthocyanin colouration
FLOWER: single type
COROLLA: medium degree of lobing, weak to medium degree of undulation
COROLLA (INNER SIDE): strong conspicuousness of veins, red veins, mainly red pink (closest to RHS 51A) when fully opened, medium yellow brown (RHS 163A) and orange red (RHS 35B) secondary colour at transition to corolla tube and between corolla lobes, small to medium area of secondary colour, red pink (RHS 51A) when newly opened, medium violet (closest to RHS 72B) aged flower
COROLLA LOBE: cuspidate apex
COROLLA TUBE (INNER SIDE): medium yellow brown (closest to RHS 163B), medium to strong conspicuousness of veins
COROLLA TUBE (OUTER SIDE): light yellow brown (RHS 162C) with grey brown (RHS 199B) near the base
ANTHER: whitish pollen

Origin & Breeding History: 'WNPETSTPER23' originated from a controlled cross conducted on November 12, 2017 in Bonsall, California, USA between the proprietary seedling designated '17PB319-02' as the female parent, and the proprietary variety designated '15P931-02' as the male parent. 'WNPETSTPER23' was selected in August 22, 2018 in Bonsall, California, USA based on plant vigour, plant growth habit, as well as flower colour, free flowering and time of flowering. Asexual reproduction of the variety was first conducted by cuttings on August 28, 2018 in Bonsall, California, USA.

Tests & Trials: The comparative trial for 'WNPETSTPER23' was conducted in a polyhouse during the spring of 2023 in St. Thomas, Ontario. The trial included 20 plants of each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into 15.2 cm pots on April 13, 2023. Observations and measurements were taken from 10 plants, or 10 parts of plants on May 30, 2023. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test. All colour determinations were made using the 2015 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'WNPETSTPER23' with reference variety 'USTUN69002'

Plant height (cm)

Corolla width (cm)

Colour of inner side of corolla (RHS)

Colour of corolla tube (RHS)

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Petunia: 'WNPETSTPER23' (left) with reference variety 'USTUN69002' (right)

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Petunia: 'WNPETSTPER23' (left) with reference variety 'USTUN69002' (right)

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Petunia: 'WNPETSTPER23' (left) with reference variety 'USTUN69002' (right)