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Chrysanthemum plant named Cream Chantal
PP8611 Chrysanthemum plant named Cream Chantal
Patent Drawings:Drawing: PP8611-3    
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Inventor: VandenBerg
Date Issued: February 22, 1994
Application: 07/826,066
Filed: January 27, 1992
Inventors: VandenBerg; Cornelis P. (Salinas, CA)
Assignee: Yoder Brothers, Inc. (Barberton, OH)
Primary Examiner: Locker; Howard J.
Assistant Examiner:
Attorney Or Agent: Foley & Lardner
U.S. Class: PLT/295
Field Of Search: Plt/74.1; Plt/82.2
International Class:
U.S Patent Documents: PP6399; PP6881; PP6943; PP6954; PP7511; PP7600; PP7673; 4616099
Foreign Patent Documents:
Other References: Broertjes, et al., 1980, "A Mutant of a mutant of a . . . Irradiation of progressive radiation-induced mutants in a mutation breedingprogramme with Chrysanthemum morifolium", Euphytica, 29:526.varies.530..
Gosling, ed., 1979, "The Chrysanthemum Manual-6th Edition", The National Chrysanthemum Society, London, Essex Telegraph Press, Ltd., pp. 329.varies.336..
Broertjes, et al., 1978, "Application of Mutation Breeding Methods in the Improvement of Vegetatively Propagated Crops", Elsevier Sci. Pub. Co., New York, pp. 162-175..
Searle, et al., 1968, "Chrysanthemums the Year Round", Blanford Press, London, pp. 27-29, 320.varies.327..
Chan, 1966, "Chrysanthemum and rose mutations induced by X-rays", Am. Soc. Hort. Sci. Proc., pp. 613-620..
Broertjes, 1966, "Mutation breeding of chrysanthemums", Euphytica, 15:156-162..
Dowrick et al., 1966, "The induction of mutations in Chrysanthemum using X- and gamma radiation", Euphytica, 15:204-210..









Abstract: A Chrysanthemum plant named Cream Chantal particularly characterized by its flat capitulum form; daisy capitulum type; cream-yellow ray floret color; diameter across face of capitulum of 25 to 27 mm when fully opened, when grown as a pinched spray pot mum; photoperiodic flowering response to short days of 44 to 48 days; plant height, with 14 to 15 long days after sticking unrooted cuttings, and with 0 to 1 applications of 2500 ppm B-9 SP, ranges from 18 to 20 cm when grown as a pinched pot mum with 4 cuttings in a 15 cm pot; small dark green foliage; branching pattern is spreading and very prolific, each plant having 6 to 8 laterals after pinch; very floriferous, with an excellent display of many small flowers; and excellent tolerance to high temperatures for bud initiation and flower development.
Claim: I claim:

1. A new and distinct Chrysanthemum plant named Cream Chantal, as described and illustrated.
Description: The present invention relates toa new and distinct cultivar of Chrysanthemum, botanically known as Dendranthema grandiflora, and referred to by the cultivar name Cream Chantal.

Cream Chantal, identified as 4145 (86-671A01), is a product of a mutation induction program. The new cultivar was discovered and selected by Cornelis P. VandenBerg on Mar. 20, 1990 in a controlled environment in Salinas, Calif., as oneflowering plant within a flowering block established as rooted cuttings from stock plants which had been exposed as unrooted cuttings to an X-ray source of 1750 rads in Fort Myers, Fla., on Aug. 24, 1989. The irradiated parent cultivar was the cultivaridentified as Chantal, disclosed in U.S. Plant Pat. No. 7,516, and described as a daisy spray pot mum with a flat capitulum form; a white ray floret color; diameter across face of capitulum of 25 to 28 mm when fully opened; flowering response period of45 to 50 days after start of short days; plant height of 18 to 25 cm with 0 to 1 applications of 2500 ppm B-9 SP when grown as a pinched pot mum in a 15 cm pot; small dark green foliage; spreading and very prolific branching pattern, with 6 to 8 lateralsafter pinch; very floriferous, with an excellent display of many small flowers; and excellent tolerance to high temperatures for bud initiation and flower development.

The irradiation program resulting in Cream Chantal had as its primary objective the expansion of color ranges of the parent cultivar Chantal. The irradiation program comprised irradiating cuttings of the parent cultivar at irradiation levels of1500, 1750 and 2000 rads. A total of 1762 cuttings harvested from a total of 225 irradiated plants were plants on Jan. 1, 1990, Dec. 11, 1989 and Nov. 27, 1989. Of these, 11 initial selections were made, which selections were then revegetated andreflowered. Three consecutive flowerings resulted in discarding 9 of the original 11 selections on Dec. 7, 1990. Two selections were retained and will be introduced as Cream Chantal and Yellow Chantal.

The first act of asexual reproduction of Cream Chantal was accomplished when vegetative cuttings were taken from the initial selection in May 1990 in a controlled environment in Salinas, Calif., by technicians working under supervision ofCornelis P. VandenBerg.

Horticultural examination of controlled flowerings of successive plantings has shown that the unique combination of characteristics as herein disclosed for Cream Chantal are firmly fixed and are retained through successive generations of asexualreproduction.

Cream Chantal has not been observed under all possible environment conditions. The phenotype may vary significantly with variations in environment such as temperature, light intensity and daylength, without, however, any variance in genotype.

The following observations, measurements and comparisons describe plants grown in Salinas, Calif. under greenhouse conditions which approximate those generally used in commercial greenhouse practice.

The following traits have been repeatedly observed and are determined to be basic characteristics of Cream Chantal, which, in combination, distinguish this Chrysanthemum as a new and distinct cultivar:

1. Flat capitulum form.

2. Daisy capitulum type.

3. Cream-yellow ray floret color.

4. Diameter across face of capitulum of 25 to 27 mm when fully opened, when grown as a pinched spray pot mum.

5. Photoperiodic flowering response to short days of 44 to 48 days.

6. Plant height, with 14 to 15 long days after sticking unrooted cuttings, and with 0 to 1 applications of 2500 ppm B-9 SP, ranges from 18 to 20 cm when grown as a pinched pot mum with 4 cuttings in a 15 cm pot.

7. Small dark green foliage.

8. Branching pattern is spreading and very prolific, each plant having 6 to 8 laterals after pinch.

9. Very floriferous, with an excellent display of many small flowers.

10. Excellent tolerance to high temperatures for bud initiation and flower development.

The accompanying photographic drawing is a side view of a potted mum of Cream Chantal, with 4 cuttings in a 15 cm pot, with the colors being asnearly true as possible with illustrations of this type.

Of the commercial cultivars known to the inventor, the most similar in comparison to Cream Chantal is the parent Chantal. All traits of Cream Chantal are similar to those of Chantal,except for the ray floret color and some variation in response and flower size. Chantal has a clear white ray floret color, while Cream Chantal has a cream-yellow ray floret color. When compared to Yellow Chantal, disclosed in pending application Ser. No. 07/826,069, Cream Chantal has been two days faster in flowering response, with the flower size being 1.5 mm smaller than the flower size of Yellow Chantal and Chantal.

In the following description color references are made to The Royal Horticultural Society Colour Chart. The color values were determined on plant material grown as a pinched spray pot mum in Salinas, Calif. on Jul. 22, 1991.

Classification:

Botanical.--Dendranthema grandiflora cv Cream Chantal.

Commercial.--Flat daisy spray pot mum.

INFLORESCENCE

A. Capitulum:

Form.--Flat

Type.--Daisy

Diameter across face.--25 to 27 mm when fully opened.

B. Corolla of ray florets:

Color (general tonality from a distance of three meters).--Cream-yellow.

Color (upper surface).--8C.

Color (under surface).--8C to 8D.

Shape.--Straight, oblong, concave.

C. Corolla of disc florets:

Color (mature).--Closest to 12A.

Color (immature).--Closest to 7A.

D. Reproductive organs:

Androecium.--Present on disc florets only; moderate pollen.

Gynoecium.--Present on both ray and disc florets.

PLANT

A. General appearance:

Height.--18 to 20 cm when grown as a pinched pot mum with 14 to 15 long days after sticking unrooted cuttings, and with 0 to 1 applications of 2500 ppm B-9 SP.

Branching pattern.--Spreading and very prolific, each plant having 6 to 8 laterals after pinch.

B. Foliage:

Color (upper surface).--147A.

Color (under surface).--147B.

* * * * *
 
 
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