USPP12860P2 - Dahlia plant named ‘Limousin’ - Google Patents

Dahlia plant named ‘Limousin’ Download PDF

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Publication number
USPP12860P2
USPP12860P2 US09/626,350 US62635000V USPP12860P2 US PP12860 P2 USPP12860 P2 US PP12860P2 US 62635000 V US62635000 V US 62635000V US PP12860 P2 USPP12860 P2 US PP12860P2
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dahlia
limousin
florets
color
plant
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US09/626,350
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Frank N. G. Ruigrok
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
    • A01H6/14—Asteraceae or Compositae, e.g. safflower, sunflower, artichoke or lettuce
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
    • A01H5/02—Flowers

Definitions

  • the present Invention relates to a new and distinct cultivar of Dahlia plant, botanically known as Dahlia variabilis , commercially referred to as a pot-type Dahlia, and hereinafter referred to by the cultivar name Limousin.
  • the new Dahlia is a product of a planned breeding program conducted by the Inventor in Hillegom, The Netherlands.
  • the objective of the breeding program is to create new pot-type Dahlia cultivars with desirable inflorescence form, attractive colors, and good garden performance.
  • the new Dahlia originated from a cross made by the Inventor in 1995 of two unidentified proprietary Dahlia variabilis seedling selections.
  • the new Dahlia was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross grown in a controlled environment in Hillegom, The Netherlands. The selection of this plant was based on its desirable inflorescence form and attractive floret colors.
  • the cultivar Limousin has 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 in genotype.
  • Plants of the new Dahlia differ from plants of the parent selections and Dahlia cultivars known to the Inventor primarily in ray floret coloration and its freely flowering habit.
  • the accompanying colored photograph illustrates the overall appearance of the new Dahlia showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ from the color values cited in the detailed botanical description which more accurately describe the actual colors of the new Dahlia.
  • the photograph comprises a side perspective view of a typical flowering plant of ‘Limousin’.
  • Botanical classification Dahlia variabilis cultivar Limousin.
  • Type . Terminal tip cuttings.
  • Time to rooting About seven to ten days with soil temperatures of 21° C.
  • Root description Fine, fibrous and well-branched; development of tubers has not been observed.
  • Appearance Herbaceous pot-type Dahlia. Inverted triangle; stems mostly upright and somewhat outwardly spreading giving a uniformly mounded appearance to the plant; relatively compact. Freely branching, lateral branches develop at every node after removal of terminal apex (pinching); dense and full plants. Vigorous.
  • Foliage description .—Arrangement: Leaves single or compound and trifoliate. Length: Compound leaves: About 4.3 cm. Terminal leaflet: About 4.3 cm. Single leaves: About 4.1 cm. Width: Compound leaves: About 3.9 cm. Terminal leaflet: About 2 cm. Single leaves: About 2.9 cm. Shape: Ovate. Apex: Acute. Base: Obtuse. Margin: Dentate with ciliation. Texture: Smooth, glabrous, leathery. Venation pattern: Pinnate. Color: Young foliage upper surface: 147A. Young foliage lower surface: Close to 147B. Mature foliage upper surface: 147A. Mature foliage lower surface: Close to 147B. Venation, upper surface: Close to 147B.
  • Petiole length Compound leaves: About 2.2 cm. Single leaves: About 2.4 cm. Petiole diameter: Compound leaves: About 4 mm. Single leaves: About 2 mm. Petiole color: 144A to 144B.
  • Appearance Terminal and axillary inflorescences held above the foliage on strong flexible peduncles.
  • Postproduction longevity Inflorescences maintain good color and substance for about one or two weeks in an outdoor environment dependent on temperature.
  • Quantity of inflorescences .—About 32 open inflorescences and buds per plant.
  • Inflorescence bud ( just before opening ).—Shape: Spherical. Height: About 9 mm. Diameter: About 8 mm. Color: Close to 154A.
  • Inflorescence size Diameter: About 3 cm. Depth (height): About 1.2 cm. Diameter of disc: About 9 mm.
  • Ray florets .—Shape: Elongated-oblong. Orientation: Initially upright, outer florets perpendicular to peduncle. Aspect: Straight, convex. Length: About 1.3 cm. Width: About 7 mm. Apex: Acute. Base: Attenuate; short corolla tube. Margin: Entire. Texture: Smooth, glabrous. Number of ray florets per inflorescence: About 28 in about two rows. Color: When opening, upper surface: Reddish purple, close to 59A to 53B. When opening, lower surface: Close to 61A. Fully opened, upper surface: Reddish purple, close to 59A to 53B to 60B. Fully opened, lower surface: Close to 61A.
  • Disc florets .—Shape: Tubular, elongated. Apex: Five-pointed. Length: About 4.5 mm. Width: Apex, about 1.5 mm; base, about 1 mm. Number of disc florets per inflorescence: About 68. Color: Immature: 154A. Mature: Apex: 9A. Base: 155D.
  • Involucral bracts Length: About 9 mm. Width: About 5 mm. Shape: Spatulate. Apex: Acute. Margin: Entire. Texture: Waxy, leathery, somewhat fleshy. Number per inflorescence: About 10 to 12. Color, both surfaces: 144A.
  • Peduncles Length, terminal inflorescence: About 3.2 cm. Diameter: About 2 mm. Strength: Strong, very flexible. Color: 144A with anthocyamin, 183A to 187A.
  • Reproductive organs .—Androecium: Present on disc florets only. Number of stamens per floret: One. Stamen length: Less than 1 mm. Stamen color: White. Anther color: 9A to 12A. Pollen amount: Pollen production has not been observed. Gynoecium: Present on both ray and disc florets. Number of pistils per floret: One. Pistil length: Less than 1 mm. Color: Yellow.
  • Seed production has not been observed.
  • Plants of the new Dahlia have been observed to be wind and rain-tolerant. Plants of the new Dahlia tolerant temperatures from 1° to 40° C.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physiology (AREA)
  • Botany (AREA)
  • Developmental Biology & Embryology (AREA)
  • Environmental Sciences (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

A distinct cultivar of Dahlia plant named ‘Limousin’, characterized by its upright, uniformly mounded and compact plant habit; freely branching habit, full and dense plants; continuous and freely flowering during the spring until fall; full inflorescences with multiple rows of ray florets; reddish purple-colored ray florets with bright yellow-colored disc florets; and excellent garden and patio container performance.

Description

BACKGROUND OF THE INVENTION
The present Invention relates to a new and distinct cultivar of Dahlia plant, botanically known as Dahlia variabilis, commercially referred to as a pot-type Dahlia, and hereinafter referred to by the cultivar name Limousin.
The new Dahlia is a product of a planned breeding program conducted by the Inventor in Hillegom, The Netherlands. The objective of the breeding program is to create new pot-type Dahlia cultivars with desirable inflorescence form, attractive colors, and good garden performance.
The new Dahlia originated from a cross made by the Inventor in 1995 of two unidentified proprietary Dahlia variabilis seedling selections. The new Dahlia was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross grown in a controlled environment in Hillegom, The Netherlands. The selection of this plant was based on its desirable inflorescence form and attractive floret colors.
Asexual reproduction of the new Dahlia by vegetative tip cuttings was first conducted in Hillegom, The Netherlands in 1996. Asexual reproduction by cuttings has shown that the unique features of this new Dahlia are stable and reproduced true to type in successive generations.
SUMMARY OF THE INVENTION
The cultivar Limousin has 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 in genotype.
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Limousin’. These characteristics in combination distinguish ‘Limousin’ as a new and distinct pot-type Dahlia:
1. Upright, uniformly mounded and compact plant habit.
2. Freely branching, full and dense plants.
3. Continuous and freely flowering during the spring until fall.
4. Full inflorescences with multiple rows of ray florets.
5. Reddish purple-colored ray florets with bright yellow-colored disc florets.
6. Excellent garden and patio container performance.
Plants of the new Dahlia differ from plants of the parent selections and Dahlia cultivars known to the Inventor primarily in ray floret coloration and its freely flowering habit.
BRIEF DESCRIPTION OF THE PHOTOGRAPH
The accompanying colored photograph illustrates the overall appearance of the new Dahlia showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ from the color values cited in the detailed botanical description which more accurately describe the actual colors of the new Dahlia. The photograph comprises a side perspective view of a typical flowering plant of ‘Limousin’.
DETAILED BOTANICAL DESCRIPTION
In the following description, color references are made to The Royal Horticultural Society Colour Chart except where general terms of ordinary dictionary significance are used. The following observations and measurements describe plants grown and flowered during the spring and summer in Keller, Tex., under outdoor conditions which approximate those generally used in commercial production. One rooted cutting was planted in a 12.5-cm container and pinched twice. Measurements and numerical values represent averages of typical flowering plants about 10 weeks after planting.
Botanical classification: Dahlia variabilis cultivar Limousin.
Commercial classification: Pot-type Dahlia.
Parentage:
Female, or seed, parent.—Proprietary Dahlia variabilis seedling selection, not patented.
Male, or pollen, parent.—Proprietary Dahlia variabilis seedling selection, not patented.
Propagation:
Type.—Terminal tip cuttings.
Time to rooting.—About seven to ten days with soil temperatures of 21° C.
Root description.—Fine, fibrous and well-branched; development of tubers has not been observed.
Plant description:
Appearance.—Herbaceous pot-type Dahlia. Inverted triangle; stems mostly upright and somewhat outwardly spreading giving a uniformly mounded appearance to the plant; relatively compact. Freely branching, lateral branches develop at every node after removal of terminal apex (pinching); dense and full plants. Vigorous.
Plant height.—To top of leaf plant: About 26 cm. To top of inflorescence plane: About 30 cm.
Plant width or area of spread.—About 28 cm.
Lateral branches.—Internode length: About 2.3 cm. Diameter: About 4 mm. Strength: Strong, very flexible. Texture: Very smooth, glabrous, glossy. Color: Close to 144A.
Foliage description.—Arrangement: Leaves single or compound and trifoliate. Length: Compound leaves: About 4.3 cm. Terminal leaflet: About 4.3 cm. Single leaves: About 4.1 cm. Width: Compound leaves: About 3.9 cm. Terminal leaflet: About 2 cm. Single leaves: About 2.9 cm. Shape: Ovate. Apex: Acute. Base: Obtuse. Margin: Dentate with ciliation. Texture: Smooth, glabrous, leathery. Venation pattern: Pinnate. Color: Young foliage upper surface: 147A. Young foliage lower surface: Close to 147B. Mature foliage upper surface: 147A. Mature foliage lower surface: Close to 147B. Venation, upper surface: Close to 147B. Venation, lower surface: Close to 147B to 147C. Petiole length: Compound leaves: About 2.2 cm. Single leaves: About 2.4 cm. Petiole diameter: Compound leaves: About 4 mm. Single leaves: About 2 mm. Petiole color: 144A to 144B.
Inflorescence description:
Appearance.—Terminal and axillary inflorescences held above the foliage on strong flexible peduncles. Composite inflorescence form with elongated oblong-shaped ray florets and disc florets massed at the center; ray and disc florets arranged acropetally on a capitulum. Not fragrant.
Flowering response.—Plants flower continuous and freely from the spring through the fall.
Postproduction longevity.—Inflorescences maintain good color and substance for about one or two weeks in an outdoor environment dependent on temperature.
Quantity of inflorescences.—About 32 open inflorescences and buds per plant.
Inflorescence bud (just before opening).—Shape: Spherical. Height: About 9 mm. Diameter: About 8 mm. Color: Close to 154A.
Inflorescence size.—Diameter: About 3 cm. Depth (height): About 1.2 cm. Diameter of disc: About 9 mm.
Ray florets.—Shape: Elongated-oblong. Orientation: Initially upright, outer florets perpendicular to peduncle. Aspect: Straight, convex. Length: About 1.3 cm. Width: About 7 mm. Apex: Acute. Base: Attenuate; short corolla tube. Margin: Entire. Texture: Smooth, glabrous. Number of ray florets per inflorescence: About 28 in about two rows. Color: When opening, upper surface: Reddish purple, close to 59A to 53B. When opening, lower surface: Close to 61A. Fully opened, upper surface: Reddish purple, close to 59A to 53B to 60B. Fully opened, lower surface: Close to 61A.
Disc florets.—Shape: Tubular, elongated. Apex: Five-pointed. Length: About 4.5 mm. Width: Apex, about 1.5 mm; base, about 1 mm. Number of disc florets per inflorescence: About 68. Color: Immature: 154A. Mature: Apex: 9A. Base: 155D.
Involucral bracts.—Length: About 9 mm. Width: About 5 mm. Shape: Spatulate. Apex: Acute. Margin: Entire. Texture: Waxy, leathery, somewhat fleshy. Number per inflorescence: About 10 to 12. Color, both surfaces: 144A.
Peduncles.—Length, terminal inflorescence: About 3.2 cm. Diameter: About 2 mm. Strength: Strong, very flexible. Color: 144A with anthocyamin, 183A to 187A.
Reproductive organs.—Androecium: Present on disc florets only. Number of stamens per floret: One. Stamen length: Less than 1 mm. Stamen color: White. Anther color: 9A to 12A. Pollen amount: Pollen production has not been observed. Gynoecium: Present on both ray and disc florets. Number of pistils per floret: One. Pistil length: Less than 1 mm. Color: Yellow.
Seed production.—Seed production has not been observed.
Disease resistance: Resistance to pathogens common to Dahlias has not been observed on plants grown under commercial greenhouse or outdoor conditions.
Weather tolerance: Plants of the new Dahlia have been observed to be wind and rain-tolerant. Plants of the new Dahlia tolerant temperatures from 1° to 40° C.

Claims (1)

It is claimed:
1. A new and distinct cultivar of Dahlia plant named ‘Limousin’, as
US09/626,350 2000-07-26 2000-07-26 Dahlia plant named ‘Limousin’ Expired - Lifetime USPP12860P2 (en)

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