Denomination: 'Balserilla'
Trade name: Serenity Vanilla
Botanical Name: Osteospermum ecklonis
Applicant/Holder: Ball Horticultural Company
622 Town Road
West Chicago, Illinois
United States of America
Breeder: Linda Laughner, Ball Horticultural Company, Santa Paula, 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: 2008-02-28
Application Number: 08-6204
Date Withdrawn: 2010-06-10

Variety Description

Varieties used for comparison: 'KLEOE05521' (Flower Power Ivory) and 'Sunny Henry'

Summary: The plants and leaves of 'Balserilla' are shorter than those of both reference varieties. 'Balserilla' has leaves with shallow margin indentations while both reference varieties have leaves with medium deep margin indentations. 'Balserilla' has more ray florets per flower than both reference varieties. 'Balserilla' has smaller flowers than 'KLEOE05521' and larger flowers than 'Sunny Henry'. The lower sides of the ray florets of 'Balserilla' are very light yellow to light yellow while those of 'Sunny Henry' are medium yellow to dark yellow. 'Balserilla' has larger discs than 'Sunny Henry'. The discs of 'Balserilla' are light grey while those of both reference varieties are medium grey green with light blue tones.


PLANT: semi-erect

LEAF: shallow margin indentations, no variegation, medium green on upper side

FLOWER: no paracorolla
RAY FLORET: rounded apex, no inward rolling of longitudinal margins, one colour on upper side, even white colour distribution on upper side, lower side is very light yellow with darker yellow middle zone
DISC: light grey

Origin & Breeding History: 'Balserilla' originated form the cross pollination between the female proprietary breeding selection 224-1op-1 and the male proprietary breeding selection 172-2-3-2 conducted in August 2005, at Santa Paula, California, United States. Selection of 'Balserilla' was made in February 2006 based on flower colour, growth habit and flowering that best matched the 'Serenity' series. Asexual propagation since its selection has been through vegetative cuttings.

Tests & Trials: Trials for 'Balserilla' were conducted in a polyhouse during the spring of 2009 in St. Thomas, Ontario. The trial included a total of 15 plants each of the candidate and reference varieties. All plants were grown from rooted cuttings and transplanted into 11 cm pots on March 31, 2009. Observations and measurements were taken from 10 plants of each variety on June 1, 2009, with the exception of 'KLEOE05521' which was measured on June 25, 2009. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Balserilla' with reference varieties 'KLEOE05521' and 'Sunny Henry'

Plant height (cm)

  'Balserilla' 'KLEOE05521' 'Sunny Henry'
mean 8.4 31.2 19.0
std. deviation 0.90 1.89 1.28

Leaf length (cm)

  'Balserilla' 'KLEOE05521' 'Sunny Henry'
mean 5.2 6.4 6.3
std. deviation 0.29 0.38 0.69

Number of ray florets per flower

  'Balserilla' 'KLEOE05521' 'Sunny Henry'
mean 25.3 20.5 17.2
std. deviation 1.42 1.96 3.52

Flower diameter (cm)

  'Balserilla' 'KLEOE05521' 'Sunny Henry'
mean 6.8 7.4 5.3
std. deviation 0.42 0.40 0.51

Disc diameter (cm)

  'Balserilla' 'KLEOE05521' 'Sunny Henry'
mean 1.5 1.2 1.0
std. deviation 0.21 0.12 0.10

Click on image for larger view
Osteospermum: 'Balserilla' (left) with reference varieties 'KLEOE05521' (center) and 'Sunny Henry' (right)

Click on image for larger view
Osteospermum: 'Balserilla' (left) with reference varieties 'KLEOE05521' (center) and 'Sunny Henry' (right)

Click on image for larger view
Osteospermum: 'Balserilla' (left) with reference varieties 'KLEOE05521' (center) and 'Sunny Henry' (right)

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