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Dahlia plant named `DATRETTEN` |
| PP18971 |
Dahlia plant named `DATRETTEN`
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| Patent Drawings: | |
| Inventor: |
Nielsen |
| Date Issued: |
June 24, 2008 |
| Application: |
11/707,506 |
| Filed: |
February 16, 2007 |
| Inventors: |
Nielsen; Rune Harboe (Odense, DK)
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| Assignee: |
Dalina APS (Odense N, DK) |
| Primary Examiner: |
Para; Annette H |
| Assistant Examiner: |
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| Attorney Or Agent: |
Foley & Lardner LLP |
| U.S. Class: |
PLT/321 |
| Field Of Search: |
PLT/321 |
| International Class: |
A01H 5/00 |
| U.S Patent Documents: |
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| Foreign Patent Documents: |
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| Other References: |
EU-CPVO Application Form with Technical Questionnaire and Proposal for Variety Denomination for corresponding, international PBR application, CPVO 2006/0527filed Feb. 21, 2006. (13 pages). cited by other.
Print-out of the Canadian Food Inspection Agency Plant Varieties Journal for Oct. 2006, No. 61, confirming the filing date and application No. for corresponding Canadian PBR application No. 06/5487 filed on Jun. 1, 2006 (2 pages). cited byother. |
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| Abstract: |
A new and distinct cultivar of Dahlia plant named `Datretten` characterized by its ray floret color (when opening, upper side): base: red, RHS 44B and apex: white, RHS N155B; capitulum (composite flower head): 9.5 to 10.5 cm in diameter, with a large number of ray florets (about 100 to 140); mature leaves about 8 to 12 cm in length, mostly compound, with 1-5 leaflets, and immature leaves about 4 to 6 cm in length, compound, with 1-5 leaflets; and vigorous plant vigor, growing upright with slight spread to form cylindrical-shaped plant. |
| Claim: |
I claim:
1. A new and distinct cultivar of Dahlia plant named `Datretten`, as described and illustrated herein. |
| Description: |
Latin name of thegenus and species of the claimed plant: Dahlia sp.
Variety denomination: `Datretten`.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Dahlia plant, botanically known as Dahlia sp. of the Compositae (Asteraceae) family, hereinafter referred to by the cultivar name `Datretten`.
The new Dahlia cultivar is a product of a planned breeding program conducted by the inventor, Rune Harboe Nielsen, in Odense, Denmark. The objective of the breeding program is to develop a new Dahlia variety with a compact, strong and healthygrowth habit, suitable for large scale container production; fully double flowering creating a globular-shaped flower head (composite flower head with many ray florets); and flower heads with new, vibrant colors.
The new Dahlia cultivar originated from a cross made in a controlled breeding program by the inventor in 2003, in Fyn, Odense, Denmark. The female or seed parent is a Dahlia cultivar designated `01.149L` (unpatented). The male or pollen parentis a Dahlia cultivar designated `Daseks` (unpatented in the US, granted as EU-CPVO application number 19981438). The new Dahlia `Datretten` was discovered and selected by the inventor as a single flowering plant within the progeny of the stated cross inMay of 2004 in a controlled environment in Odense, Denmark.
Asexual reproduction of the new Dahlia cultivar by vegetative cuttings was first performed in August of 2004 in Odense, Denmark, and has demonstrated that the combination of characteristics as herein disclosed for the new cultivar are firmlyfixed and retained through successive generations of asexual reproduction. The new cultivar reproduces true to type.
BRIEF SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and are determined to be unique characteristics of `Datretten`, which in combination distinguish this Dahlia as a new and distinct cultivar: 1. Ray floret color (when opening, upper side): Base:Red, RHS 44B; Apex: White, RHS N155B; 2. Capitulum (composite flower head): 9.5 to 10.5 cm in diameter, with a large number of ray florets (about 100 to 140); 3. Foliage: Mature leaves are about 8 to 12 cm in length, mostly compound, with 1-5 leafletsand immature leaves are about 4 to 6 cm in length, compound, with 1-5 leaflets; and 4. Plant Vigor and Growth Habit: Vigorous, grows upright with slight spread to form cylindrical-shaped plant.
Plants of the new Dahlia `Datretten` differ from plants of the male parent `Daseks` (unpatented in the US, granted as EU-CPVO application number 19981438) in the characteristics described in Table 1. Plants of the female parent `01.200A`(unpatented) are unavailable for comparison to plants of `Datretten`.
TABLE-US-00001 TABLE 1 Male Parent `DASEKS` (unpatented in US, New Cultivar granted as EU-CPVO Characteristic `DATRETTEN` 19981438) Color of Ray Bi-color Red-purple, RHS 60A Floret (when Base: red, RHS 44B; opening, upper Apex: white, RHS N155B. side): Capitulum 9.5 to 10.5 mm 50 to 70 mm Diameter: Foliage: Mostly compound, with 1-5 Single leaves. leaflets Growth Habit: Grows upright with slight Grows erect to semi-erect spread to form cylindrical- in compact plant shape. shaped plant
Of the many commercial cultivars known to the present inventor, the most similar in comparison to the new Dahlia `Datretten` is the Dahlia `Papagaya` (unpatented in the US, granted as EU-CPVO application number 20031209), in the characteristicsdescribed in Table 2:
TABLE-US-00002 TABLE 2 Comparison Cultivar `PAPAGAYA` (granted New Cultivar as EU-CPVO application Characteristic `DATRETTEN` number 20031209) Color of Ray Bi-color Bi-color Floret (when Base: red, RHS 44B; Base: Red, 46B. opening, upper Apex:white, RHS N155B. Apex: White, RHS 155B. side): Number of Ray About 100 to 140 About 40 to 90 Florets. Capitulum 9.5 to 10.5 mm 8 to 9 cm Diameter: Foliage: Mostly compound, with 1-5 Mostly single, few leaflets compound, tri-lobed. Plant Vigor andVigorous, grows upright Vigorous, grows upright Growth Habit: with slight spread to form and spreading to form cylindrical-shaped plant. globular-shaped plant. Plant Height: About 40 to 45 cm About 30 to 35 cm
BRIEF DESCRIPTION OF THEPHOTOGRAPHS
The accompanying photographs illustrate the overall appearance of the new Dahlia `Datretten` showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photographs may differ slightly from thecolor value cited in the detailed botanical description which accurately describe the colors of `Datretten`.
FIG. 1 shows a side view perspective of a typical flowering plant of `Datretten` in a 15 cm pot (volume 2 liters), at 9 weeks of age after potting.
FIG. 2 shows a top view perspective of a fully opened capitulum of `Datretten` (as identified by breeder reference 03.217E), at 9 weeks of age after potting.
FIG. 3 shows a close-up view of the typical capitulum of `Datretten` (as identified by breeder reference 03.217E) in different stages of development.
FIG. 4 shows a close-up top view of the typical foliage of `Datretten` (as identified by breeder reference 03.217E), at 9 weeks of age after potting.
DETAILED BOTANICAL DESCRIPTION
The new Dahlia `Datretten` has not been observed under all possible environmental conditions. The phenotype of the new cultivar may vary with variations in environment such as temperature, light intensity, and day length without any change inthe genotype of the plant.
The aforementioned photographs, together with the following observations, measurements and values describe the new Dahlia `Datretten` as grown in a protected environment in a glass, greenhouse in Fyn, Odense, Denmark, under conditions whichclosely approximate those generally used in commercial practice. During propagation, conducted in a glass, greenhouse, vegetative cuttings were planted in small propagation pots with peat as substrate, and then placed in a plastic tunnel averaging about21.degree. C. and received photoperiodic treatments of 18 hours. Supplementary light was given when natural light fell below 3000-4000 Lux. Rooting occurred about 12 days after planting. In third week after planting, young plants were potted in an 11cm pot in a glass, greenhouse maintained at 18.degree. C. to 22.degree. C. during the day, and at 17.degree. C. to 19.degree. C. during the night. Photoperiodic treatments were continued at 18 hours, and supplementary light was given when naturallight fell below 3000-4000 Lux. Irrigation was done with water. The EC measured in the soil was maintained between 2.0 to 3.0. One week after potting, the first growth regulation was given: a spray with 85% daminozide, 0.2%, 25 ml/m.sup.2. During theproduction time, 4 additional sprayings were given with 85% daminozide, 0.2%, 70-100 ml/m.sup.2.
Color references are made to The Royal Horticultural Society Colour Chart (R.H.S.), 2001 edition, except where general colors of ordinary significance are used. Color values were taken under daylight conditions between approximately 12:00 PM and2:00 PM in Fyn, Odense, Denmark. The age of the `Datretten` plants described is 12 weeks (including propagation time). Classification: Botanical.--Dahlia sp. Parentage: Female or seed parent.--Dahlia cultivar designated `01.149L` (unpatented). Maleor pollen parent.--Dahlia cultivar designated `Daseks` (unpatented in US, granted as EU-CPVO application number 19981438). Propagation: Type.--Vegetative cuttings. Rooting description.--Fibrous and freely-branching. Height of rootingstructure.--Depends on container, can grow to about 30 to 40 cm. Diameter of rooting structure.--Depends on container, can grow to about 30 to 40 cm. Color of roots.--White, RHS 155B. Time to initiate roots.--About 12 days at 21.degree. C. Time toproduce a rooted cutting.--About 21 days at 21.degree. C. during rooting phase, followed by 18.degree. C. Tubers.--Will form under short day conditions, 12 hours of darkness. Tubers may develop in late summer/early autumn when planted outdoors. Plant: Crop time.--After rooting, about 9 to 10 weeks are required to produce finished flowering plants in 15 cm pots. Plant vigor.--Vigorous. Form.--Cylindrical, grows upright with slight spread. Size.--Height (from soil level to top of plant plane):About 40 to 45 cm. Height (from soil level to top of foliage): About 25 to 35 cm. Spread: About 40 to 45 cm. Stem.--Appearance/Shape: Circular, hollow, glabrous, ridged. Diameter: About 8 to 12 cm. Aspect: Upright to outward. Strength: Strong. Texture: Glaucous. Pubescence: None. Color: Main color: Yellow-green, RHS 144A. Apical parts: Grey-brown, RHS 199A. Lateral branches.--Quantity per plant: About 6 to 7 (when pinching over 3 pair of leaves). Length: (including inflorescences): About25 to 40 cm. (from break to base of peduncle); About 12 to 15 cm. Diameter: About 8 to 12 mm. Color: Main color: Yellow-green, RHS 144A. Apical parts: Grey-brown, RHS 199A. Habit: Freely branching. Basal Branching: Yes. Pinching: Pinchingrecommended. Internode length: About 3 to 8 cm. Foliage: Type.--First 2 to 3 pairs on basic lateral branch are single. Thereafter, compound with about 3 to 5 leaflets. Quantity of leaves per lateral branch.--About 4 to 10. Quantity of leaflets percompound leaf.--About 1 to 5. Color (leaves and leaflets).--Color (mature): Upper side: Green, RHS 139A. Under side: Greyed-green, RHS 191B. Color (immature): Upper side: Green, RHS 139A. Under side: Greyed-green, RHS 191A. Venation (leaves andleaflets).--Pattern: Pinnate. Color: Upper side: Yellow-green, RHS 146A. Under side: Yellow-green, RHS 146A. Simple leaves.--Arrangement: Opposite, decussate. Length: Mature leaves (at base): 8 to 12 cm. Immature leaves: 4 to 6 cm. Width: Matureleaves: 4-7 cm. Immature leaves: 3-6 cm. Shape: Ovate to cordate, cuspidate tip, rounded base. Margin: Crenate. Texture (both sides): Rugose. Petiole: Shape: Semi circular. Length: About 2 to 7 cm. Diameter: About 3 to 6 mm. Color: Upper side:Brown, RHS 200B. Under side: Yellow-green, RHS 146A. Compound leaves.--Arrangement and shape: Compound with 3-5 leaflets. Leaves near the petiole are often tri-lobed or single. Length: Up to 25 cm, generally about 15 cm. Width: Up to 22 cm,generally about 14 cm. Shape: Elliptical, acuminate tip, decurrent base. Margin: Dentate. Texture (both sides): Rugose. Petiole: Shape: Semi circular. Length: About 2 to 5 cm. Diameter: About 3 to 6 mm. Color: Upper side: Brown, RHS 200B. Underside: Yellow-green, RHS 146A. Leaflets of Compound Leaf: Terminal: Quantity: One. Length: About 5 to 9 cm. Width: About 3 to 4 cm. Rachis: Length: About 3 to 5 cm. Diameter: About 2 to 5 mm. Color: Yellow-green, RHS 146A. Lateral: Quantity: About2 to 4. Length: About 4 to 9 cm. Width: About 2 to 5 cm. Flowering description: Natural flowering season.--Grown outside as a bedding plant, flowering occurs continuously during growing season (In Denmark, from June to beginning of October). Plantscan be brought to flower anytime when grown under the recommended greenhouse conditions. Time to first flower.--About 8 to 9 weeks from potting of a rooted cutting. Lastingness of individual blooms on plant.--Depending on weather conditions, about 7 to12 days. Fragrance.--None. Inflorescence description: Type.--Capitulum (composite flower head). Arrangement.--Persistent, single, composite inflorescences from leaf axils. Disc and ray florets arranged acropetally on a capitulum. Floweringaspect.--Upright, slightly spreading. Young flower head/buds initially 70.degree. to 90.degree. turning to 30.degree. when flower head opens. Quantity of flowers and buds per lateral branch.--About 1 open capitulum and 3 buds. Fragrance.--None. Bud.--Quantity: About 3 to 5 per lateral stem (buds continue to develop when the dead composite flower heads are removed). Rate of Opening: About 4 to 10 days for bud to progress from first color to fully opened capitulum, depending on temperature andlight conditions. Shape: Globular. Length (when color shows): About 1.5 to 2.0 cm. Diameter (when color shows): About 2.5 to 3.0 cm. Texture: Glabrous, shining. Color: Yellow-green, RHS 144B. Peduncle.--Length: About 10 to 18 cm. Diameter: About 4to 6 cm. Strength: Strong. Aspect (angle to vertical): First flower: About 0.degree. to 10.degree.; Second flower: About 20.degree. to 30.degree.. Color: Green, RHS 138B, with stripes of brown, RHS 200C. Inflorescence.--Inflorescence depth(height): About 6 to 7 cm. Inflorescence diameter: About 9.5 to 10.5 cm. Disc diameter: About 1.4 cm. Receptacle diameter: About 1.6 cm. Receptacle height: About 0.9 cm. Ray florets.--Arrangement: Imbricate, in about 7-9 whorls of ray florets, eachwith 10 to 18 florets to equal a total of about 100-140 ray florets per capitulum, depending on light and temperature conditions. Appearance: Obovate. Overall shape: Circular to elliptic, involute with a rounded tip. Apex shape: Obtuse. Base shape:Acuminate, fused to form tube. Length: About 35 to 45 mm. Diameter (width): About 2 to 30 mm. Margin: Entire. Texture: Upper side: Glabrous, smooth. Under side: Glabrous with visible veins. Orientation: Initially 15.degree. from vertical, withdevelopment, to 160.degree. from vertical. Color: Development and tones of color for florets may change slightly depending on light and temperature conditions. When opening: Upper side: Primarily red, RHS 44B, with white tip, RHS N155B. When fullyopened: Upper side: Primarily red, RHS 45B, with white tip, RHS N155B. Disc florets.--Arrangement: Massed at center of capitulum, about 40-90 disc florets per capitulum, which are yellow-white in color at the lower half, but appear more yellow inappearance due to the transparent corollas and the underlying yellow color from the anthers. Appearance: Tubular to single, fused corolla. Overall shape: Tubular. Apex shape: Star with 5 triangular tips. Base shape: Fused to tube. Length: About 4 to6 mm. Diameter: About 1 mm. Margin: Entire. Texture (both surfaces): Glabrous. Color: Transparent, yellow-white, RHS 158C, letting the yellow, RHS 13A color of the anthers come through (before anthesis), to yellow-orange, RHS 20A (at anthesis). Phyllaries.--Quantity: One subtending each floret. About 140 to 200 phyllaries per capitulum. Appearance and arrangement: Thin, translucent, papery. Phyllaries, arranged acropetally on the capitulum. Overall shape: Subulate. Apex shape: Acute withrounded tip. Base shape: Fused. Length: About 10 to 14 mm. Width: About 5 to 8 mm. Margin: Entire. Texture (both sides): Glabrous. Color: Mature: Yellow-green, RHS 151D, to green, RHS 139D, at base. Immature: Yellow-green, RHS 151D, to green, RHS139D, at base. Bracts.--Quantity: About 5 to 8. Appearance and arrangement: Reflexed, involucral bracts. Overall shape: Subovate. Apex shape: Acute to rounded. Base shape: Sessile. Length: About 10 to 14 mm. Width: About 6 to 8 mm. Margin:Entire. Texture (both sides): Glabrous. Color: Mature: Upper side: Green, RHS 139A. Under side: Green, RHS 139B. Immature: Upper side: Green, RHS 139A. Under side: Green, RHS 138B. Reproductive organs: Androecium.--Stamen: Number: 5, fused intosynandrous tube around style. Disc florets fertile, ray florets sterile. Length: About 10 to 12 mm. Anther: Shape: Tubular. Length: About 4 to 5 mm. Color: Yellow-orange, RHS 20A. Pollen: Amount: Abundant. Color: Yellow-orange, RHS 20A. Gynoecium.--Pistil: Quantity: One. Length: About 8-10 mm. Stigma: Shape: Bifurcate. Length: About 4-8 mm. Color: Yellow-orange, RHS 20A. Style: Length: About 6-8 mm. Color: Yellow-orange, RHS 20D. Ovary: Diameter: About 1 mm. Color: Yellow-green151C. Seed/fruit: None observed. Disease/pest resistance: Resistance to pathogens and pests common to Dahlia have not been observed. Disease/pest susceptibility: Susceptibility to pathogens and pests common to Dahlia have not been observed. Temperature tolerance: Tolerant to a low temperature of about 2.degree. C. (but flowering ceases at constant temperature of 12.degree. C.) and tolerant to a high temperature of about 35.degree. C. High temperatures might reduce flowering. Growthregulators: Daminozide (85% water soluble dry concentrate formulation).
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