Halo Violet

Viola

Denomination:	'Halo Violet'
Botanical Name:	Viola ×wittrockiana
Applicant/Holder:	Ball Horticultural Company 622 Town Road West Chicago, Illinois 60185 United States of America
Breeder:	Troy Thorup, Ball Horticultural Company, Guadalupe, United States of America
Agent in Canada:	BioFlora Inc. 38723 Fingal Line R.R. #1 St. Thomas, Ontario N5P 3S5 Canada Tel: 519-317-7511
Application Date:	2012-01-03
Application Number:	12-7468
Grant of Rights Date:	2014-06-12
Certificate Number:	4839
Date rights surrendered:	2019-06-12

Variety Description

Varieties used for comparison: 'Etain' and 'Halo Sky Blue'

Summary: The plants of 'Halo Violet' are narrower than those of 'Halo Sky Blue'. The leaf blade of 'Halo Violet' is shorter than that of 'Halo Sky Blue'. The flower of 'Halo Violet' is smaller than that of 'Halo Sky Blue'. The lower petals of 'Halo Violet' are wider that those of 'Etain' and narrower than those of 'Halo Sky Blue'. The upper side of the upper petal of 'Halo Violet' is violet with yellow green at the base and a darker violet margin whereas the upper petal of 'Etain' is yellow green with a light violet blue margin, and for 'Halo Sky Blue', it is violet blue to light violet blue with light yellow brown at the base and a violet margin. The upper side of the lower petal of 'Halo Violet' is yellow green with yellow at the base, a violet margin with dark violet along the outer edge whereas the lower petal of 'Etain' is yellow with a light violet blue margin and blue violet along the outer edge, and for 'Halo Sky Blue', it is yellow green with yellow at the base, a violet blue to light violet blue margin and violet along the outer edge. The lower and lateral petals of 'Halo Violet' have striped markings while those of 'Etain' have none.

Description:

PLANT: upright growth habit

LEAF BLADE: ovate, obtuse apex, rounded base, crenate margin, medium green on upper side, absent or very sparse pubescence on upper side, medium glossiness of upper side

PEDUNCLE: absent or very sparse pubescence
SEPAL: linear, acuminate apex, medium green, absent or very sparse pubescence
UPPER PETAL: main colour of upper side is violet to lighter violet (RHS N87B-C), base is yellow green (RHS 150D), margin is violet (darker than RHS N81A)
LATERAL PETAL: medium conspicuousness of striped markings
LOWER PETAL: main colour of upper side is yellow green (RHS 150D), base is yellow (RHS 9A), margin is violet (RHS N81A) with dark violet (RHS 83A) along outer edge, medium to strong conspicuousness of striped markings, yellow orange (RHS 13A) spot
THROAT: white hairs present
SPUR: absent or very sparse pubescence, light blue-violet

Origin & Breeding History: 'Halo Violet' originated from a cross-pollination conducted between the female parent, '20421-2', and the male parent, '20634-7', in April 2007 in Guadalupe, California, United States. Seeds were germinated and grown to maturity. In September 2007, one plant was selected for its picotee flower colour pattern, large flower size, floriferousness, and growth habit. It has been further propagated through vegetative cuttings.

Tests & Trials: Trials for 'Halo Violet' were conducted in a polyhouse during the spring of 2013 at BioFlora Inc. 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 11.5 cm pots on April 16, 2013. Observations and measurements were taken from 10 plants of each variety on May 21, 2013. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Halo Violet' with reference varieties 'Etain' and 'Halo Sky Blue'

Plant width (cm)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
mean	16.5	18.9	23.8
std. deviation	1.54	3.14	2.06

Leaf blade length (cm)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
mean	3.8	3.5	5.2
std. deviation	0.28	0.16	0.27

Sepal length (cm)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
mean	1.6	1.2	1.5
std. deviation	0.09	0.07	0.11

Flower length (cm)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
mean	4.5	4.2	5.3
std. deviation	0.30	0.13	0.18

Flower width (cm)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
mean	4.0	4.0	5.1
std. deviation	0.25	0.31	0.22

Lower petal width (cm)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
mean	3.1	2.6	3.5
std. deviation	0.13	0.10	0.11

Colour of upper side of upper petal (RHS)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
main	N87B-C with 150D at base	3D	93C-D with 158D at base
secondary	darker than N81A at margin	92B margin	N87B margin

Colour of upper side of lower petal (RHS)

	'Halo Violet'	'Etain'	'Halo Sky Blue'
main	150D with 9A at base	5B	150D with 9A-B at base
secondary	N81A margin with 83A along outer edge	92B margin with N88B along outer edge	93C-D margin with N87A along outer edge