WNCALSBYEL23

Calibrachoa

Variety Description

Varieties used for comparison: 'KLECA15327' (MiniFamous Deep Yellow) and 'Callie Yellow Improved'

Summary: The shoot of 'WNCALSBYEL23' is shorter than that of both reference varieties. The leaf blade apex of 'WNCALSBYEL23' is obtuse while it is acute for that of 'Callie Yellow Improved'. The upper side of the leaf blade of 'WNCALSBYEL23' is medium green whereas it is dark green for that of 'KLECA15327'. The corolla of 'WNCALSBYEL23' is narrower than that of both reference varieties. When aged, the inner side of the corolla of 'WNCALSBYEL23' is medium yellow with light yellow at the margin whereas it is medium yellow for that of both reference varieties. The corolla lobe apex of 'WNCALSBYEL23' is truncate whereas it is emarginate for that of 'Callie Yellow Improved'. The inner side of the corolla tube of 'WNCALSBYEL23' is medium yellow with dark yellow undertones whereas it is medium yellow brown for that of 'KLECA15327' and light yellow mottled with medium yellow for that of 'Callie Yellow Improved'.

Description:

PLANT: semi-upright to spreading growth habit

LEAF BLADE: obtuse apex, no variegation, medium green upper side

FLOWER: single type
COROLLA: medium degree of lobing, weak to medium conspicuousness of veins
COROLLA LOBE: truncate apex
COROLLA LOBE (INNER SIDE): mainly medium yellow (closest to RHS 9A) with medium yellow (closest to RHS 12B) at margin when fully opened, medium yellow (closest to RHS 7A) with medium yellow (closest to RHS 9B) at margin when newly opened, medium yellow (closest to RHS 9A) with light yellow (closest to RHS 8C) at margin when aged, absent or weak colour change during growing season
COROLLA TUBE (INNER SIDE): no colour change at transition, mainly medium yellow (RHS 12A) with dark yellow (RHS 14B) undertones, weak conspicuousness of veins

Origin & Breeding History: 'WNCALSBYEL23' originated from a controlled cross conducted on August 1, 2017 in Bonsall, California, USA between the proprietary variety designated '16C824-02' as the female parent, and the proprietary variety designated '17CB082-02' as the male parent. From the resulting progeny, the new variety was selected on May 20, 2018 in Bonsall, California, USA based on plant vigour, plant growth habit, as well as flower size, colour and density. Asexual reproduction of 'WNCALSBYEL23' was first conducted by cuttings on May 25, 2018 in Bonsall, California, USA.

Tests & Trials: The comparative trial for 'WNCALSBYEL23' was conducted in a polyhouse during the summer of 2023 in St. Thomas, Ontario. The trial included 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 30 cm hanging baskets on April 29, 2023. Each basket contained 4 cuttings with a total of 5 baskets per variety. Observations and measurements were taken from 10 plants, or 10 parts of plants, on June 6, 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 'WNCALSBYEL23' with reference varieties 'KLECA15327' and 'Callie Yellow Improved'

Shoot length (cm)

Corolla width (cm)

Colour of inner side of corolla of aged flower (RHS)

Colour of inner side of corolla tube (RHS)

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Calibrachoa: 'WNCALSBYEL23' (left) with reference variety 'KLECA15327' (right)

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Calibrachoa: 'WNCALSBYEL23' (left) with reference variety 'Callie Yellow Improved' (right)

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Calibrachoa: 'WNCALSBYEL23' (left) with reference varieties 'Callie Yellow Improved' (centre) and 'KLECA15327' (right)