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Rap Magna


Denomination: 'Rap Magna'
Trade name: Rapunzel Magenta
Botanical Name: Glandularia ×hybrida
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Mitchell Hanes, Goldsmith Seeds, Inc., Morgan Hill, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-317-7511
Application Date: 2007-12-24
Application Number: 07-6125
Grant of Rights Date: 2010-01-11
Certificate Number: 3741
Date rights surrendered: 2012-01-16

Variety Description

Variety used for comparison: 'Rap Burg Two' (Rapunzel Burgundy)

Summary: 'Rap Magna' has a shorter plant with stronger anthocyanin colouration of the stem than 'Rap Burg Two'. The petiole of 'Rap Magna' is shorter than 'Rap Burg Two'. 'Rap Magna' has a larger corolla diameter than 'Rap Burg Two'. The corolla margin of 'Rap Magna' has weaker undulation than 'Rap Burg Two'. 'Rap Magna' has a lighter purple upper side corolla colour than 'Rap Burg Two'. The corolla eye of 'Rap Magna' is smaller than 'Rap Burg Two'. 'Rap Magna' has a light pink to light purple coloured corolla eye while it is whitish green in 'Rap Burg Two'.


PLANT: semi-upright growth habit, very short to short height
STEM: light green, medium anthocyanin colouration on middle third in the form of streaks

LEAF BLADE: short to medium length, narrow to medium width, ovoid to deltoid shape, cuneate to truncate base, dissected, serrate margin, grey green on upper side, no anthocyanin colouration on upper side
PETIOLE: short to medium length

INFLORESCENCE: small diameter, cylindrical in profile
CALYX: no anthocyanin colouration
COROLLA: small to medium diameter, one colour, even colour pattern, purple on upper side, weakly fading change in colour with age, purple to blue pink at base (RHS 72A, 73B at base) on lower side
COROLLA LOBES: free to touching, straight to slightly recurved along longitudinal axis, weak to medium undulation of margin
COROLLA TUBE: short, tip of protruding hairs is red purple
COROLLA EYE: very small, light pink to light purple

Origin & Breeding History: 'Rap Magna' originated from a hybrid cross made in August 2005, in Gilroy, California, USA between the female parent '04-1791-5' and the male parent '03-1752-1'. The resultant seed from the cross was sown in a greenhouse in November 2005. In February 2006, a single plant was selected based on flower colour and plant habit.

Tests & Trials: Tests and trials were conducted in a poly house in the spring of 2008 in St. Thomas, Ontario. There were 15 plants of each variety individually grown in 12 cm plastic pots. All colour measurements were made using the 2001 Royal Horticultural Society Colour Chart.

Comparison tables for 'Rap Magna' with reference variety 'Rap Burg Two'

Plant height (cm)

  'Rap Magna' 'Rap Burg Two'
mean 11.8 19.4
std. deviation 1.71 2.57

Petiole length (mm)

  'Rap Magna' 'Rap Burg Two'
mean 7.4 12.9
std. deviation 1.51 2.96

Corolla diameter (mm)

  'Rap Magna' 'Rap Burg Two'
mean 19.7 15.6
std. deviation 1.50 0.73

Main corolla colour (RHS)

  'Rap Magna' 'Rap Burg Two'
upper side 61A apex, 61B base darker than 71A

Click on image for larger view
Rap Magna
Verbena: 'Rap Magna' (left) with reference variety 'Rap Burg Two' (right)

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