USPP21274P3 - Variety of hydrangea plant named ‘Horstol’ - Google Patents

Variety of hydrangea plant named ‘Horstol’ Download PDF

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Publication number
USPP21274P3
USPP21274P3 US12/313,825 US31382508V USPP21274P3 US PP21274 P3 USPP21274 P3 US PP21274P3 US 31382508 V US31382508 V US 31382508V US PP21274 P3 USPP21274 P3 US PP21274P3
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color
horstol
length
variety
shape
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US20100132084P1 (en
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Katrin Meinl
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Claus and Torsten Kuhne GbR
Hydrangea Breeders Association BV
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Claus and Torsten Kuhne GbR
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Assigned to CLAUS & TORSTEN KUHNE GBR reassignment CLAUS & TORSTEN KUHNE GBR ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEINL, KATRIN
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Assigned to Hydrangea Breeders Association B.V. reassignment Hydrangea Breeders Association B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLAUS & TORSTEN KUHNE GBR
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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
    • A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
    • A01H5/02—Flowers
    • 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
    • A01H6/48—Hydrangeacae, e.g. Hydrangea

Definitions

  • Botanical classification Hydrangea macrophylla hybrid.
  • the present invention comprises a new and distinct cultivar of Hydrangea plant known by the varietal name ‘Horstol’.
  • the new variety was discovered in 2001 in a planned breeding program in Dresden, Germany. The purpose of the breeding program was to develop vigorous dark pink/red Hydrangeas.
  • the new variety is the result of a cross between breeding selection 48-90/1 (female parent, unpatented) and ‘Rom’ (male parent, unpatented).
  • the color of ‘Horstol’ is similar to 48-90/1, but ‘Horstol’ differs in growth habit and inflorescence diameter.
  • the forcing time of ‘Horstol’ is similar to ‘Rom’, but ‘Horstol’ differs in color and growth habit.
  • the new variety was first asexually reproduced in 2001 via propagation by cuttings in Germany. The new variety has been trial and field tested in Germany and has been found to retain its distinctive characteristics and remain true to type through successive propagations.
  • ‘Horstol’ is similar to another Hydrangea variety, ‘Merrits Supreme’ (unpatented), in color and because they are both mopheads. However, ‘Horstol’ differs from ‘Merrits Supreme’ in growth habit, branching characteristics and forcing time.
  • FIG. 1 is photograph of an entire plant of the new variety.

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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 Hydrangea plant having a strong root system, good stem quality and deep pink colored inflorescences.

Description

Botanical classification: Hydrangea macrophylla hybrid.
Varietal denomination: ‘Horstol’.
BACKGROUND OF THE INVENTION
The present invention comprises a new and distinct cultivar of Hydrangea plant known by the varietal name ‘Horstol’. The new variety was discovered in 2001 in a planned breeding program in Dresden, Germany. The purpose of the breeding program was to develop vigorous dark pink/red Hydrangeas. The new variety is the result of a cross between breeding selection 48-90/1 (female parent, unpatented) and ‘Rom’ (male parent, unpatented). The color of ‘Horstol’ is similar to 48-90/1, but ‘Horstol’ differs in growth habit and inflorescence diameter. The forcing time of ‘Horstol’ is similar to ‘Rom’, but ‘Horstol’ differs in color and growth habit. The new variety was first asexually reproduced in 2001 via propagation by cuttings in Germany. The new variety has been trial and field tested in Germany and has been found to retain its distinctive characteristics and remain true to type through successive propagations.
The following traits distinguish ‘Horstol’ as a new and distinct cultivar from other Hydrangea varieties known to the breeder:
    • 1. Inflorescence size;
    • 2. Stem quality;
    • 3. Vigor;
    • 4. Root system; and
    • 5. Branching characteristics.
‘Horstol’ is similar to another Hydrangea variety, ‘Merrits Supreme’ (unpatented), in color and because they are both mopheads. However, ‘Horstol’ differs from ‘Merrits Supreme’ in growth habit, branching characteristics and forcing time.
DESCRIPTION OF THE DRAWING
The accompanying photographic drawing illustrates the new variety, with the color being as nearly true as is possible with color illustrations of this type:
FIG. 1 is photograph of an entire plant of the new variety.
 DESCRIPTION OF THE PLANT
The following detailed description sets forth characteristics of the new cultivar. The plants were grown in 13 cm. pots in peat substrate at a pH of 5.7 and were 10 months past propagation when described. Measurements and color readings of the plants were taken in Dresden, Germany under natural light with a shadow present. Color references are primarily to the R.H.S. Colour Chart of The Royal Horticultural Society of London.
PLANT
  • Time to initiate roots: About 15 days at 18° C.
  • Time to develop roots: About 20 days at 18° C.
  • Rooting habit: Strong and adventitious root system.
  • Time to produce a finished flowering plant from a rooted cutting: About 43 weeks in a 13 cm. container.
  • Form: Symmetrical.
  • Height (from media surface to top of foliage): 20.0 cm.
  • Height (from media surface to top of flowers): 29.0 cm.
  • Plant diameter: 45.0 cm.
  • Vigor: Strong.
  • Strength: No artificial support needed.
  • Branching habit: Well-branched.
  • Trunk:
      • Main trunk length.—0.8 cm.
      • Diameter.—0.8 cm.
      • Color.—199B.
      • Texture.—Woody.
      • Pubescence.—Absent.
      • Internode length.—1.2 cm.
  • Lateral branches:
      • Length.—Young: 14.0 cm. Mature: 2.0 cm.
      • Diameter.—Young: 0.7 cm. Mature: 0.9 cm.
      • Internode length—2.0 cm.
      • Texture.—Smooth with dark lenticels.
      • Pubescence.—Absent.
      • Lenticel.—Length.—0.5-1.0 mm. Width: 0.5 mm. Shape: Mostly oval.
      • Color.—Young: 144A. Mature: 199B.
      • Lenticel color.—177A.
  • Foliage:
      • Arrangement.—Mostly opposite disposition.
      • Size of leaf.—Length: 10.0 cm. Width: 7.0 cm.
      • Shape of leaf (generally).—Young: Ovate. Mature: Ovate.
      • Shape of apex.—Cuspidate.
      • Shape of base.—Obtuse.
      • Texture.—Shiny.
      • Aspect.—Slightly undulate.
      • Margin type.—Serrate.
      • Pubescence.—None present.
      • Color.—Young leaves: Upper surface: 139A. Lower surface: 138B. Mature leaves: Upper surface: 139A. Lower surface: 138B.
      • Petiole.—Shape: U-shaped. Length: 1.8 cm. Diameter: 0.3 cm. Color: 138B.
      • Veins.—Venation type: Pinnate. Color: Upper surface: 138B. Lower surface: 138C.
FLOWER
  • Natural flowering season: July in Dresden, Germany.
  • Flower habit: Late blooming after 10 weeks of forcing.
  • Bud:
      • Stage of development when described.—At full coloration.
      • Shape of cluster.—Round.
      • Diameter of cluster.—6.0 cm.
      • Number of buds per cluster.—5 fertile, 15 sterile.
      • Shape.—Fertile: Round. Sterile: Round.
      • Length.—Fertile: 0.4 cm. Sterile: 0.2 cm.
      • Width.—Fertile: 0.4 cm. Sterile: 0.2 cm.
  • Inflorescence:
      • Shape.—Mophead.
      • Length.—10.0 cm.
      • Diameter.—15.0 cm.
      • Average number of flowers per inflorescence.—30 fertile, 85 sterile.
      • Average number of inflorescences per plant.—6.
      • Lastingness.—Fertile: Three weeks. Sterile: Five weeks.
  • Petals:
      • Number per flower: 4 to 6.
      • Color.—Upper surface: 63B. Lower surface: 63D.
      • Shape.—Round to ovate.
      • Length.—0.4 cm.
      • Width.—0.2 cm.
      • Apex.—Pointy.
      • Base.—Obtuse.
      • Margin.—Entire.
      • Texture.—Smooth.
      • Tonality from a distance.—Mixed color.
  • Sepals:
      • Number per flower.—4 to 5.
      • Color.—142D.
      • Shape.—Ovate.
      • Length—0.1 cm.
      • Width.—0.1 cm.
      • Apex.—Pointy.
      • Base.—Obtuse.
      • Margin.—Entire.
      • Texture.—Smooth.
      • Fused.—Yes.
  • Petaloids:
      • Quantity.—4 to 5.
      • Shape.—Ovate.
      • Length.—2.8 cm.
      • Width.—2.8 cm.
      • Color.—Upper surface: N66B. Lower surface: 68B.
  • Pedicels:
      • Length.—Fertile: 0.4 cm. Sterile: 2.8 cm.
      • Diameter.—Fertile: 0.1 cm. Sterile: 0.2 cm.
      • Color.—68C.
  • Peduncles:
      • Length.—4.0 cm.
      • Diameter.—0.4 cm.
      • Texture.—Smooth with dark lenticels.
      • Color.—144C.
  • Stamens:
      • Number per fertile flower.—7 to 9.
      • Filament.'Length: 0.2 cm. Color: 65D.
      • Anthers.—Shape: Round to elongated. Length: 0.1 cm. Color: 1D.
      • Pollen.—Color: 1D. Amount: Plentiful.
  • Pistils:
      • Number.—1, divided into 3 parts.
      • Length.—0.1 cm.
      • Style: Length: 0.1 cm. Color: 65D.
      • Stigma (divided into 3 parts).—Color: 65D. Diameter: 0.2 cm.
      • Ovaries (inferior).—Length: 0.3 cm. Width: 0.2 cm. Color: 1D.
  • Fragrance: Fresh and “green”.
  • Disease resistance: Tolerant to botrytis and powdery mildew.
  • Temperature tolerance: Medium, not fully winterhardy flower buds in Germany.
  • Drought tolerance: Medium.

Claims (1)

1. A new and distinct variety of Hydrangea plant substantially as shown and described herein.
US12/313,825 2008-11-25 2008-11-25 Variety of hydrangea plant named ‘Horstol’ Active USPP21274P3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/313,825 USPP21274P3 (en) 2008-11-25 2008-11-25 Variety of hydrangea plant named ‘Horstol’

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Application Number Priority Date Filing Date Title
US12/313,825 USPP21274P3 (en) 2008-11-25 2008-11-25 Variety of hydrangea plant named ‘Horstol’

Publications (2)

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US20100132084P1 US20100132084P1 (en) 2010-05-27
USPP21274P3 true USPP21274P3 (en) 2010-09-07

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Upov Plant Variety Database 2009/03 p. 1. *

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Owner name: CLAUS & TORSTEN KUHNE GBR, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEINL, KATRIN;REEL/FRAME:021942/0979

Effective date: 20081110

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Owner name: HYDRANGEA BREEDERS ASSOCIATION B.V., NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CLAUS & TORSTEN KUHNE GBR;REEL/FRAME:048041/0432

Effective date: 20190108