Yogrand Rapids

Chrysanthemum

Denomination: 'Yogrand Rapids'
Trade name: Grand Rapids
Botanical Name: Chrysanthemum ×morifolium
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Basel
4058
Switzerland
Breeder: Wendy Bergman, Syngenta Flowers, Inc., Alva, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2009-03-24
Application Number: 09-6566
Grant of Rights Date: 2013-04-26
Certificate Number: 4505
Date rights surrendered: 2014-04-17

Variety Description

Variety used for comparison: 'Dazzling Yonew York' (Dazzling New York)

Summary: The terminal leaf lobe of 'Yogrand Rapids' is medium in length relative to the leaf length while the terminal lobe of 'Dazzling Yonew York' is very long. The outer side of the flower bud of 'Yogrand Rapids' is brown purple with light yellow orange tones while the flower bud of 'Dazzling Yonew York' is orange brown to orange pink with light yellow at the base. The flower head of 'Yogrand Rapids' is larger in diameter than the flower head of 'Dazzling Yonew York'. The ray floret of 'Yogrand Rapids' is longer than the ray floret of 'Dazzling Yonew York'. The outer side of the ray floret of 'Yogrand Rapids' is light yellow orange with an overlay of brown purple while the outer side of the ray floret of 'Dazzling Yonew York' is light yellow with an overlay of orange at the tip.

Description:

PLANT: bushy type, upright growth habit, green stem

PETIOLE: moderately upwards to horizontal attitude
LEAF: terminal lobe medium in length relative to leaf length, lowest lateral sinus medium to deep with diverging margins, base obtuse, upper side medium green with absent or weak glossiness, low number of deep margin indentations

FLOWER: many flower heads per plant, outer side of bud brown purple (RHS 185C-D) with yellow tones and light yellow orange (RHS 18B) in middle zone, daisy-eyed double head type
RAY FLORETS: dense, predominantly ligulate type with some incurved types, upper surface with two keels, very short corolla tube, moderately concave profile in cross section at widest point, weakly involute at basal quarter to flat margin, straight along longitudinal axis, ray florets from inner rows with weak to medium incurving along longitudinal axis at distal half, tip emarginate, dentate and mamillate
RAY FLORET: inner side light yellow (RHS 8B), outer side light yellow orange (RHS 18B) with overlay of brown purple (RHS 185D), ray florets from inner rows yellow (RHS 6C) on inner side and light yellow (RHS 8C) with brown purple (RHS 185B-C) at tip and flushed throughout on outer side
DISC: flat in cross section, yellow green before anther dehiscence with no dark spot at centre, yellow green at anther dehiscence.

Origin & Breeding History: The variety 'Yogrand Rapids' originated from a controlled pollination conducted in May 2005 in Salinas, California, USA. The female parent was a proprietary seedling designated YB-A9207 and the male parent was a proprietary seedling designated YB-A8021. The new variety was selected in December 2005 in Fort Myers, Florida. The selection criteria included good plant strength, flowering response time, flower form and colour, suitability for production and excellent post production longevity. Asexual reproduction by vegetative tip cuttings was first conducted in Fort Myers, Florida, USA in March 2006.

Tests & Trials: Trials for 'Yogrand Rapids' were conducted in a greenhouse trial during the Fall of 2011 in Niagara-on-the-Lake, Ontario. On August 8, 2011, fifty unrooted cuttings were directly stuck into 15 cm pots, with 5 cuttings per pot. The trial included a total of 10 pots of each variety spaced 30 cm apart. Plants were pinched once prior to short day treatment. Observations and measurements were taken from 10 plants of each variety on November 8, 2011. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Yogrand Rapids' with reference variety 'Dazzling Yonew York'

Flower head diameter (cm)

  'Yogrand Rapids' 'Dazzling Yonew York'
mean 6.5 5.6
std. deviation 0.47 0.23

Ray floret length (cm)

  'Yogrand Rapids' 'Dazzling Yonew York'
mean 3.1 2.3
std. deviation 0.19 0.22

Colour of flower bud (RHS)

  'Yogrand Rapids' 'Dazzling Yonew York'
outer side 185C-D, 18B tones in middle 179C-D with 8B at base

Colour of ray floret (RHS)

  'Yogrand Rapids' 'Dazzling Yonew York'
inner side 8B 6A
outer side 18B, 185B-C at tip and flushed throughout 8B with 31C-D overlay, N34C at tip

Click on image for larger view
Yogrand Rapids
Chrysanthemum: 'Yogrand Rapids' (left) with reference variety 'Dazzling Yonew York' (right)

Click on image for larger view
Yogrand Rapids
Chrysanthemum: 'Yogrand Rapids' (left) with reference variety 'Dazzling Yonew York' (right)

Click on image for larger view
Yogrand Rapids
Chrysanthemum: 'Yogrand Rapids' (left) with reference variety 'Dazzling Yonew York' (right)

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