Chrysanthemum plant named `Icey Isle`
The present invention comprises a new and distinct cultivar of Chrysanthemum, botanically known as Dendranthema grandiflora, and referred to by the cultivar name Icey Isle.
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Icey Isle originated from a cross made by Peter S. Hesse in a controlled breeding program at Clearwater Nursery, 887 Mesa Rd., Nipomo, Calif. 98444, USA.
The female parent of Icey Isle was the commercial variety Splendor (U.S. Plant Pat. No. 5,225) and the male parent was Hopscotch (U.S. Plant Pat. No. 5,816). Icey Isle was discovered and selected as one flowering plant within the progeny of the stated cross by Peter S. Hesse in Nov. 1989, in a controlled environment in Nipomo, Calif.
The first act of asexual reproduction of Icey Isle was accomplished in Jan. 1990, when vegetative cuttings were taken in a controlled environment at Clearwater Nursery, Nipomo, Calif., by Peter S. Hesse.
Horticultural examination of controlled flowerings of successive plantings has shown that the unique combination of characteristics as herein disclosed for Icey Isle are firmly fixed and are retained through successive generations of asexual reproduction.
Icey Isle has not been observed under all possible environmental conditions. The phenotype may vary significantly with variations in the environment such as temperature, light intensity and day lenth.
The following observations, measurements and comparisons describe plants grown in controlled environments at Clearwater Nursery, Nipomo, Calif. Unrooted cuttings were directly stuck into 6.5 inch pots and grown in a controlled environment under the natural temperature and day length prevailing in Jan. 1990 to March 1990.
The following traits have been repeatedly observed and are determined to be basic characteristics of Icey Isle which, in combination, distinguish this Chrysanthemum as a new and distinct cultivar.
1. Flat Capitulum Form.
2. Daisy Capitulum Type.
3. White fully expanded outer ray florets.
4. Yellow Daisy disc with green eye.
5. A diameter of 13.3 cm across the face of the capitulum.
6. Exceptional upright to spreading habit with an average of 3.0 breaks after a single pinch.
7. Flowering response is approximately 58 days from the start of short days.
8. Relatively easy to control plant height from bench such that the finished height will range from 40 to 45 centimeters depending on pot size and market requirements.
DESCRIPTION OF THE PHOTOGRAPHThe accompanying photograph shows typical inflorescence and leaf characteristics of Icey Isle with the colors being as nearly true as possible with illustrations of this type. The photograph shows Icey Isle grown as a pinched spray pot mum with five (5) cuttings in a 6.5 inch pot.
DESCRIPTION OF THE PLANTOf the commercial cultivars known to the inventor, the most similar in comparison to Icey Isle are the cultivars Splendor and Hopscotch. Reference is made to Table I which compares certain characteristics of Icey Isle to the same characteristics of the above mentioned cultivars.
TABLE I
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HOP-
CHARACTERISTIC
SCOTCH ICEY ISLE SPLENDOR
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CAPITULUM Flat Flat Flat
FORMS
CAPITULUM TYPE
Daisy Daisy Daisy
DIAMETER 7.5 cm 13.3 cm 12.2 cm
ACROSS FACE
BRANCHING Upright Upright Upright
PATTERN Spreading Spreading Spreading
BREAKS/PINCH 4.4 3.0 4.0
HEIGHT IN 6.5"
40-45 cm 40-45 cm 40-45 cm
POT WITH 1-2
APPLICATIONS B-9
RESPONSE: 8.5 weeks 8.5 weeks 9.0 weeks
TREATMENT medium medium medium
vigorous vigorous vigorous
grower grower grower
DISC FLORETS
DISC FLORET Yellow Yellow Yellow
COLOR
NO. OF DISC 183.2 215.0 133.8
FLORETS
LENGTH OF DISC
0.6 cm 0.7 cm 0.6 cm
FLORETS
RAY FLORETS
COLOR
FRONT: fully 9A 155B 75A
expanded Yellow White Purple
FRONT: unfolded
9A 155B 75A
ray florets Yellow White Purple
BACK: fully 6A 155B 75D
expanded outer
Yellow White Purple
ray floret
NUMBER 32.6 46.0 52.3
SHAPE Elliptic Elliptic Elliptic
LENGTH 3.85 cm 5.9 cm 5.2 cm
WIDTH 1.43 cm 1.7 cm 1.5 cm
TOTAL NUMBER 6.7 11.8 10.4
OF FLOWERS/
BREAK
LEAF
COLOR: Front: Front: 147A
Front: 139A
147A Back: 147B Back: 138A
Back: 147B
MATURE LEAF Up to 10.2
Up to 10.5 cm
Up to 8.4 cm
LENGTH: cm
MATURE LEAF 5.95 cm 6.4 cm 4.5 cm
WIDTH:
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Similar traits of the three cultivars include: The large flat, daisy capitulum. The diameter of the capitulum of Icey Isle tends to be slightly larger than the capitulum of Splendor. Both Splendor and Icey Isle tend to have significantly larger diameter capitulums than Hopscotch. All three cultivars have similar upright, spreading branching patterns. Icey Isle tends to have fewer numbers of breaks per pinch per plant than both Hopscotch and Splendor. The finished plant height and the color of the disc florets is also similar for the three cultivars. Icey Isle tends to have more disc florets than either Hopscotch or Splendor. The length of the disc florets is also similar for the three cultivars. The front ray floret color of Icey Isle is white 155B, for Hopscotch is yellow 9A, and for Splendor is purple 75D. The back ray floret color of Icey Isle is white 155B, for Hopscotch yellow 6A, and for Splendor is purple 75D. Icey Isle has the largest number of ray florets followed by Splendor. Hopscotch has the fewer number of ray florets. The ray florets of all three cultivars are elliptic. Splendor and Icey Isle have similar length ray florets. Both cultivars have longer ray florets than Hopscotch. The width of the ray florets is similar for all three cultivars. The color of the leaves of Icey Isle are similar to Hopscotch. Icey Isle has the longest mature leaf length followed by Hopscotch, with Splendor having the shortest leaf. The three cultivars have similar leaf width. The response time from the start of short days is the same for Hopscotch and Icey Isle at 8.5 weeks. Response time is slightly higher for Splendor 9.0 weeks.
THE PLANTClassification
Botanical.--Dendranthema grandiflora. Cultivar name: Icey Isle.
Commercial.--Flat daisy to be grown primarily as a Spray/CBR (center bud removed) or Disbud pot mum.
Inflorescence
Capitulum.--Form: Flat. Type: Daisy. Diameter across face: 13.3 cm.
Ray florets.--Color: White (general tonality within a distance of three (3) meters). Front: Fully expanded ray floret 155B. Front: Unfolded ray florets in center of flower. Back: Fully expanded outer ray floret 155B. Disc Floret Color: Edge begins with 14A to Center Green of 141C. Shape: Elliptic.
Corolla of Disc Florets.--Color: White.
Reproductive organs:
Androecium.--Present in disc floret; pollen: scant.
Gynoecium.--Present in both ray and disc floret.
General appearance:
Height.--When grown in a 6.5 inch pot with 1-4 applications of B-NINE.TM. at the rate of 2500 ppm, the total plant height from the bottom of the pot may be maintained at 40-45 cm.
Branching pattern: Upright and spreading with an average of 3.0 breaks when grown with one pinch.
Foliage.--Color: (upper surface) 147A. Color: (lower surface) 147B. Shape: (see photograph).
Claims
1. A new and distinct Chrysanthemum plant named Icey Isle substantially as herein described and shown, characterized by its white floret coloration and excellent upright spreading habit.
Type: Grant
Filed: Mar 31, 1995
Date of Patent: Jan 2, 1996
Assignee: Clearwater Nursery, Inc. (Nipomo, CA)
Inventor: Peter S. Hesse (Nipoma, CA)
Primary Examiner: Howard J. Locker
Law Firm: Arnold, White & Durkee
Application Number: 8/414,745
International Classification: A01H 500;
