USPP15836P2 - Poinsettia plant named ‘Wincrea’ - Google Patents

Poinsettia plant named ‘Wincrea’ Download PDF

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Publication number
USPP15836P2
USPP15836P2 US10/859,515 US85951504V USPP15836P2 US PP15836 P2 USPP15836 P2 US PP15836P2 US 85951504 V US85951504 V US 85951504V US PP15836 P2 USPP15836 P2 US PP15836P2
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plants
wincrea
cultivar
color
poinsettia
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Ruth Kobayashi
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Duemmen Group BV
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Paul Ecke Ranch Inc
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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
    • A01H6/38—Euphorbiaceae, e.g. Poinsettia
    • 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

  • Botanical classification/cultivar designation Euphorbia pulcherrima Willd. cultivar Wincrea.
  • 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 name ‘Wincrea’.
  • the new Poinsettia a product of a planned breeding program conducted by the Inventor in Encinitas, Calif.
  • the objective of the breeding program is to create new Poinsettia cultivars having strong stems, reflexed flower bracts with desirable colors, uniform plant habit and excellent post-production longevity.
  • the new Poinsettia is a naturally-occurring branch mutation of the Euphorbia pulcherrima Willd. cultivar Eckalbeno, disclosed in U.S. Plant Pat. No. 13,316.
  • the new Poinsettia was discovered and selected by the Inventor within a population of plants of the cultivar Eckalbeno in November, 2000, in a controlled environment in Encinitas, Calif. The selection of this plant was based on its strong stems and reflexed pale yellow-colored flower bracts.
  • Plants of the new Poinsettia are most similar to the parent, the cultivar Eckalbeno. Plants of the new Poinsettia differ primarily from plants of the parent in flower bract coloration as plants of the cultivar Eckalbeno have pink and pale yellow bi-colored flower bracts.
  • Plants of the new Poinsettia can be compared to plants of the cultivar Eckaimon, disclosed in U.S. Plant Pat. No. 13,909. In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Poinsettia differed from plants of the cultivar Eckaimon in the following characteristics:
  • the photograph at the top of the sheet comprises a side perspective view of a typical flowering plant of ‘Wincrea’.
  • the photograph at bottom left of the sheet is a close-up view of a typical inflorescence of ‘Wincrea’.
  • the photograph at the bottom right of the sheet is a top perspective view of a typical flowering plant of ‘Wincrea’.
  • the new Poinsettia 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.

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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 new and distinct cultivar of Poinsettia plant named ‘Wincrea’, characterized by its ball-shaped inflorescences with recurved pale yellow-colored flower bracts; recurved dark green-colored leaves; uniform plant habit; and excellent postproduction longevity.

Description

Botanical classification/cultivar designation: Euphorbia pulcherrima Willd. cultivar Wincrea.
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 name ‘Wincrea’.
The new Poinsettia a product of a planned breeding program conducted by the Inventor in Encinitas, Calif. The objective of the breeding program is to create new Poinsettia cultivars having strong stems, reflexed flower bracts with desirable colors, uniform plant habit and excellent post-production longevity.
The new Poinsettia is a naturally-occurring branch mutation of the Euphorbia pulcherrima Willd. cultivar Eckalbeno, disclosed in U.S. Plant Pat. No. 13,316. The new Poinsettia was discovered and selected by the Inventor within a population of plants of the cultivar Eckalbeno in November, 2000, in a controlled environment in Encinitas, Calif. The selection of this plant was based on its strong stems and reflexed pale yellow-colored flower bracts.
Asexual reproduction of the new Poinsettia by terminal cuttings propagated in a controlled environment in Encinitas, Calif., since January, 2001, has shown that the unique features of this new Poinsettia are stable and reproduced true to type in successive 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 ‘Wincrea’. These characteristics in combination distinguish ‘Wincrea’ as a new and distinct cultivar:
    • 1. Ball-shaped inflorescences with recurved pale yellow-colored flower bracts.
    • 2. Recurved dark green-colored leaves.
    • 3. Uniform plant habit.
    • 4. Strong erect stems.
    • 5. Response time about 8.5 weeks.
    • 6. Excellent post-production longevity.
Plants of the new Poinsettia are most similar to the parent, the cultivar Eckalbeno. Plants of the new Poinsettia differ primarily from plants of the parent in flower bract coloration as plants of the cultivar Eckalbeno have pink and pale yellow bi-colored flower bracts.
Plants of the new Poinsettia can be compared to plants of the cultivar Eckaimon, disclosed in U.S. Plant Pat. No. 13,909. In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Poinsettia differed from plants of the cultivar Eckaimon in the following characteristics:
    • 1. Plants of the new Poinsettia were shorter than plants of the cultivar Eckaimon.
    • 2. Plants of the new Poinsettia were more freely branching than plants of the cultivar Eckaimon.
    • 3. Plants of the new Poinsettia flowered about three or four days earlier than plants of the cultivar Eckaimon.
    • 4. Plants of the new Poinsettia had smaller inflorescences than plants of the cultivar Eckaimon.
BRIEF DESCRIPTION OF THE PHOTOGRAPHS
The accompanying colored photographs illustrate 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 photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Poinsettia.
The photograph at the top of the sheet comprises a side perspective view of a typical flowering plant of ‘Wincrea’.
The photograph at bottom left of the sheet is a close-up view of a typical inflorescence of ‘Wincrea’.
The photograph at the bottom right of the sheet is a top perspective view of a typical flowering plant of ‘Wincrea’.
 DETAILED BOTANICAL DESCRIPTION
The new Poinsettia 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 aforementioned photographs, following observations and averaged measurements describe plants grown in Encinitas, Calif. during the autumn and winter under commercial practice in a polyethylene-covered greenhouse with day temperatures about 24° C., night temperatures about 19° C., and light levels about 4,000 foot-candles. Single plants were grown in 16.5-cm pots and pinched once. Plants were flowered under natural season short day/long night conditions. Plants were about 17 weeks from unrooted cuttings when the photographs 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 Wincrea.
  • Parentage: Naturally-occurring branch mutation of Euphorbia pulcherrima Willd. cultivar Eckalbeno, disclosed in U.S. Plant Pat. No. 13,316.
  • Propagation:
      • Type cutting.—Terminal cuttings.
      • Time to initiate roots.—About ten days at 20 to 22° C.
      • Time to develop roots.—About four weeks at 24° C.
      • Root description.—Thick, fibrous and freely-branching.
  • Plant description:
      • Plant form.—Inverted triangle; strong and erect stems.
      • Growth habit.—Upright and uniform plant habit. Moderately vigorous.
      • Plant height.—About 23 cm.
      • Plant diameter or spread.—About 30 cm.
      • Lateral branch description.—Quantity: About eight lateral branches develop after pinching. Length: About 18 cm. Diameter: About 6 mm. Internode length: About 2.3 cm. Strength: Strong, stiff. Texture: Smooth; glabrous. Color: 146B.
      • Foliage description.—Arrangement: Alternate, single. Length: About 10.5 cm. Width: About 7.5 cm. Shape: Roughly elliptic. Apex: Acuminate. Base: Obtuse to truncate. Margin: Entire; somewhat sinuate. Venation pattern: Pinnate. Texture, upper and lower surfaces: Glabrous; slightly rugose. Orientation: Recurved. Color: Developing and fully expanded foliage, upper surface: Darker than 147A. Developing and fully expanded foliage, lower surface: More gray than 147B. Venation, upper and lower surfaces: 147B. Petiole: Length: About 1.6 cm. Diameter: About 3 mm. Texture, upper and lower surfaces: Smooth; glabrous. Color: 146B.
  • Inflorescence description:
      • Inflorescence type and habit.—Inflorescences are compound corymbs of cyathia with colored flower bracts subtending the cyathia. One inflorescence per lateral branch. Flower bracts recurved, inflorescences ball-shaped. Flowers are not fragrant. Flowers persistent.
      • Natural flowering season.—Autumn/winter in Northern Hemisphere. Flower initiation and development is induced under long nyctoperiod conditions. Response time, about 8.5 weeks; natural season flower maturity date is late November for plants grown in Encinitas, Calif.
      • Post-production longevity.—Plants of the new Poinsettia maintain good substance and bract color for about four weeks under interior conditions.
      • Inflorescence size.—Diameter: About 10 cm. Height (depth): About 4.5 cm.
      • Flower bracts.—Quantity per inflorescence: About 20. Length, largest bracts: About 8 cm. Width, largest bracts: About 7.2 cm. Shape: Elliptic. Apex: Acuminate, curled. Base: Obtuse. Margin: Entire; slightly sinuate. Texture, upper and lower surfaces: Glabrous; velvety; rugose. Orientation: Recurved. Venation pattern: Pinnate. Color: Developing or transitional bracts, upper surface: 10B. Developing or transitional bracts, lower surface: 10C. Fully developed bracts, upper and lower surfaces: 5D. Venation, upper and lower surfaces: Similar to flower bract color. Bract petiole: Length: About 1.5 cm. Diameter: About 2 mm. Texture, upper and lower surfaces: Smooth; glabrous. Color: 144A.
      • Cyathia.—Quantity: About eight per corymb. Diameter of cyathia cluster. About 2 cm. Length: About 8 mm. Width: About 5 mm. Shape: Ovoid. Color, immature and mature: 144B. Peduncle: Length: About 1 mm. Diameter: About 2 mm. Strength: Strong. Aspect: Mostly upright. Texture: Smooth; glabrous. Color: 144B. Stamens: Quantity per cyathium: About five. Anther shape: Bilobed. Anther length: About 1 mm. Anther color: 13B. Amount of pollen: Scarce. Pollen color: 13B. Pistils: None observed. Nectaries: Quantity per cyathium: One. Size: About 3 mm by 5 mm. Color: 13A.
  • Disease/pest resistance: Resistance to pathogens and pests common to Poinsettias has not been observed on plants grown under commercial conditions.

Claims (1)

1. A new and distinct cultivar of Poinsettia plant named ‘Wincrea’, as illustrated and described.
US10/859,515 2004-06-01 2004-06-01 Poinsettia plant named ‘Wincrea’ Expired - Lifetime USPP15836P2 (en)

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