Denomination: 'Balcabyelow'
Trade name: Cabaret Yellow
Botanical Name: Calibrachoa
Applicant/Holder: Ball Horticultural Company
622 Town Road
West Chicago, Illinois
United States of America
Breeder: Ball Horticultural Company, West Chicago, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2007-04-12
Application Number: 07-5860
Grant of Rights Date: 2009-10-06
Certificate Number: 3640
Date rights surrendered: 2010-11-25

Variety Description

Varieties used for comparison: 'KLECA05104' (MiniFamous Lemon) and 'Kakegawa S70' (Colorburst Trailing Canary)

Summary: The plants of 'Balcabyelow' are taller than those of 'KLECA05104' and narrower than those of 'Kakegawa S70'. 'Balcabyelow' has shorter pedicels than both reference varieties. The flowers of 'Balcabyelow' have medium degree of lobing while those of 'KLECA05104' have weak degree of lobing. 'Balcabyelow' differs from both reference varieties in the yellow colour on the upper side of the corolla. The apex of the corolla lobes of 'Balcabyelow' are cuspidate while those of 'KLECA05104' are truncate.


PLANT: upright and trailing growth habit, short to medium height, narrow to medium width

LEAF BLADE: medium length, elliptic and obovate, narrow acute apex, no variegation, medium green on upper side, no blistering
PETIOLE: medium length

SEPAL: short to medium length, narrow, lanceolate, no anthocyanin colouration
FLOWER: single, medium diameter, salverform, very short to short pedicel
COROLLA: medium degree of lobing, one coloured on upper side
COROLLA LOBE: yellow (RHS 7C-D) on upper side, yellow veins, weak conspicuousness of veins on upper side, light yellow (RHS 5D) on lower side, cuspidate apex
COROLLA TUBE: medium length, yellow (RHS 12A) on inner side, weak conspicuousness of veins on inner side
ANTHER: yellow before pollen dehiscence

Origin & Breeding History: 'Balcabyelow' originated from a cross pollination conducted on October 6, 2004 in Elburn, Illinois, USA, as part of a controlled breeding program. The cross was between the female parent designated '2110-1-2A' and the male parent designated '2139-1-1E', both proprietary Calibrachoa breeding selections. The initial selection of 'Balcabyelow' was made on August 15, 2005 based on flower size, flower colour, branching habit and plant growth habit. The variety has been maintained since that time through the use of vegetative cuttings.

Tests & Trials: Trials for 'Balcabyelow' were conducted in a polyhouse during the spring of 2008 in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 30 cm hanging baskets on May 23, 2008. Each basket contained 4 cuttings with a total of 5 baskets per variety. Observations and measurements were taken from 10 plants of each variety on July 22, 2008. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Balcabyelow' with reference varieties 'KLECA05104' and 'Kakegawa S70'

Plant height (cm)

  'Balcabyelow' 'KLECA05104' 'Kakegawa S70'
mean 17.8 11.4 19.9
std. deviation 2.63 2.56 1.14

Plant width (cm)

  'Balcabyelow' 'KLECA05104' 'Kakegawa S70'
mean 56.8 57.6 70.4
std. deviation 2.75 1.89 3.93

Pedicel length (cm)

  'Balcabyelow' 'KLECA05104' 'Kakegawa S70'
mean 1.1 1.7 1.6
std. deviation 0.16 0.20 0.26

Main colour of corolla (RHS)

  'Balcabyelow' 'KLECA05104' 'Kakegawa S70'
upper side 7C-D 8C, 8B at throat and primary veins 9B-D

Click on image for larger view
Calibrachoa: 'Balcabyelow' (left) with reference varieties 'KLECA05104' (centre) and 'Kakegawa S70' (right)

Click on image for larger view
Calibrachoa: 'Balcabyelow' (left) with reference varieties 'KLECA05104' (centre) and 'Kakegawa S70' (right)

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