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Poinsettia plant named `NPCW02022`
PP14669 Poinsettia plant named `NPCW02022`
Patent Drawings:Drawing: PP14669-3    
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(1 images)

Inventor: Klemm
Date Issued: April 6, 2004
Application: 10/452,077
Filed: June 2, 2003
Inventors: Klemm; Nils (Stuttgart, DE)
Assignee: Klemm & Sohn GmbH + Co. KG (Stuttgart, DE)
Primary Examiner: Bell; Kent
Assistant Examiner:
Attorney Or Agent: Whealy; C. A.
U.S. Class: PLT/307
Field Of Search: PLT/307
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: A new and distinct cultivar of Poinsettia plant named `NPCW02022`, characterized by its compact, uniform and upright plant habit; dark green-colored leaves; orange red-colored flower bracts; early flowering habit; and good post-production longevity.
Claim: It is claimed:

1. A new and distinct cultivar of Poinsettia plant named `NPCW02022`, as illustrated and described.
Description: Botanicalclassification/cultivar denomination: Euphorbia pulcherrima Willd. cultivar NPCW02022.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Poinsettia plant, botanically known as Euphorbia pulcherrima Willd., and hereinafter referred to by the cultivar name `NPCW02022`.

The new Poinsettia is a product of a planned breeding program conducted by the Inventor in Stuttgart, Germany. The objective of the breeding program is to create new freely branching Poinsettia cultivars with upright and uniform plant habit andattractive flower bract coloration.

The new Poinsettia originated from a cross-pollination made by the Inventor in 1997 of a proprietary selection of Euphorbia pulcherrima Willd. identified as code number S 219, not patented, as the female, or seed, parent, with a proprietaryselection of Euphorbia pulcherrima Willd. identified as code number K 137, not patented, as the male, or pollen, parent. The cultivar NPCW02022 was discovered and selected by the Inventor in 1999 as a flowering plant within the progeny of the statedcross-pollination in a controlled environment in Stuttgart, Germany. The selection of this plant was based on its attractive leaf and flower bract coloration and uniform plant habit.

Asexual reproduction of the new Poinsettia by vegetative terminal cuttings taken in a controlled environment in Stuttgart, Germany since 2000, has shown that the unique features of this new Poinsettia are stable and reproduced true to type insuccessive generations of asexual reproduction.

BRIEF SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined to be the unique characteristics of `NPCW02022`. These characteristics in combination distinguish `NPCW02022` as a new and distinct Poinsettia cultivar: 1. Compact, uprightand uniform plant habit. 2. Dark green-colored leaves. 3. Orange red-colored flower bracts. 4. Early flowering; response time, about eight weeks. 5. Good post-production longevity.

Plants of the new Poinsettia differ from plants of the parent selections primarily in plant habit and flower bract coloration.

Plants of the new Poinsettia can be compared to plants of the cultivar Fisson, disclosed in U.S. Plant Pat. No. 9,364. In side-by-side comparisons conducted in Stuttgart, Germany, plants of the new Poinsettia differed from plants of thecultivar Fisson in the following characteristics: 1. Plants of the new Poinsettia were more compact than plants of the cultivar Fisson. 2. Leaves of plants of the new Poinsettia were not as deeply lobed as leaves of plants of the cultivar Fisson. 3. Flower bract color of plants of the new Poinsettia was more orange than flower bract color of plants of the cultivar Fisson.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Poinsettia, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightlyfrom the color values cited in the detailed botanical description which accurately describe the colors of the new Poinsettia. The photograph comprises a side perspective view of a single flowering plant of `NPCW02022` grown in a container.

DETAILED BOTANICAL DESCRIPTION

Plants of the new Poinsettia have not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance ingenotype.

The aforementioned photograph, following observations and measurements describe plants grown in Stuttgart, Germany under commercial practice in a glass-covered greenhouse with day temperatures ranging from 20 to 30.degree. C., night temperaturesranging from 16 to 20.degree. C., and a maximum light level of about 70 kilolux. Cuttings were harvested in August and planted into 12-cm containers when rooted and pinched once. Plants were flowered under natural season short day/long nightconditions. Plants were about 15 weeks from unrooted cuttings when the photograph and the detailed botanical description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition,except where general terms of ordinary dictionary significance are used. Botanical classification: Euphorbia pulcherrima Willd. cultivar NPCW02022. Parentage: Female, or seed, parent.--Proprietary selection of Euphorbia pulcherrima Willd. identifiedas code number S 219, not patented. Male, or pollen, parent.--Proprietary selection of Euphorbia pulcherrima Willd. identified as code number K 137, not patented. Propagation: Type cutting.--Vegetative terminal cuttings. Time to initiateroots.--Summer: About 12 days at 22.degree. C. Winter: About 15 days at 22.degree. C. Time to produce a rooted cutting.--Summer: About 20 days at 22.degree. C. Winter: About 23 days at 22.degree. C. Root description.--Fibrous; freely-branching; whitein color. Plant description: Growth habit.--Compact, upright and uniform plant habit; inverted triangle; top of plant rounded; low vigor. Plant height.--About 20 to 25 cm. Plant diameter or spread.--About 25 to 30 cm. Lateral branchdescription.--Quantity per plant: About four to six lateral branches develop after pinching. Length: About 20 cm. Diameter: About 5 to 10 mm. Internode length: About 1 to 4 cm. Texture: Smooth, glabrous. Color: 143A overlain with 183A. Foliagedescription.--Arrangement: Alternate, single. Quantity of leaves: About 8 to 15 per lateral branch. Length: About 4 to 10 cm. Width: About 2 to 6 cm. Shape: Ovate. Apex: Acute. Base: Obtuse. Margin: Entire with slight irregular lobing. Venationpattern: Pinnate. Texture, upper and lower surfaces: Glabrous, smooth. Color: Developing foliage, upper surface: 144B. Developing foliage, lower surface: 143C. Fully expanded foliage, upper surface: 139A. Fully expanded foliage, lower surface: 137B. Venation, upper surface: 139A. Venation, lower surface: 181A. Petiole: Length: About 2 to 4 cm. Diameter: About 2 to 3 mm. Texture: Glabrous, smooth. Color, upper and lower surfaces: 183A. Inflorescence description: Inflorescence type andhabit.--Inflorescences are compound corymbs of cyathia with colored flower bracts subtending the cyathia. lnflorescences not persistent. Fragrance.--None detected. Natural flowering season.--Autumn/winter; flower initiation and development is inducedunder short day/long night conditions. Response time.--Early flowering, about eight weeks. Post-production longevity.--Plants of the new Poinsettia maintain good substance and bract color for about three to four weeks under interior conditions andabout four to five weeks under greenhouse conditions. Quantity of inflorescences.--One per lateral branch; about four to six per plant. Inflorescence size.--Diameter: About 15 to 20 cm. Height (depth): About 2 to 5 cm. Flower bracts.--Quantity offully developed flower bracts: About six to eight per inflorescence. Length: About 7 to 10 cm. Width: About 4 to 6 cm. Shape: Ovate. Apex: Acute. Base: Obtuse. Margin: Entire with occasional lobing. Texture, upper and lower surfaces: Glabrous,smooth. Surface: Concave. Color: Developing and fully expanded bracts, upper surface: 43A; color becoming closer to 45A with development. Developing and fully expanded bracts, lower surface: 50A to 46C. Venation, upper and lower surfaces: Same aslamina. Bract petiole: Length: About 1 to 3 cm. Diameter: About 2 mm. Texture: Glabrous, smooth. Color, upper and lower surfaces: 183B. Cyathia.--Quantity of cyathia: About four to six per corymb. Diameter of cyathia cluster: About 1 to 2 cm. Length: About 4 to 7 mm. Diameter: About 3 to 4 mm. Shape: Ovoid. Color, immature and mature: 143C. Nectaries.--Quantity of nectaries: One per cyathium. Diameter: About 2 to 3 mm. Color: 13A to 14B. Peduncle.--Length: About 1 to 2 mm. Diameter:About 1 mm. Aspect: Erect. Strength: Moderately strong. Texture: Glabrous, smooth. Color: 144C. Reproductive organs.--Stamens: Quantity of stamens: About five to eight per cyathium. Anther shape: Ovoid. Anther length: About 1 mm. Anther color: 9Ato 12A. Amount of pollen: Sparse. Pollen color: 9A to 12A. Pistils: Quantity of pistils: One per cyathium. Pistil length: About 3 to 5 mm. Style length: About 2 to 3 mm. Stigma color: 185A. Disease/pest resistance: Resistance to pathogens andpests common to Poinsettias has not been observed on plants grown under commercial conditions. Temperature tolerance: Plants of the new Poinsettia have been observed to tolerate temperatures from 14 to 38.degree. C.

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