USPP19010P2 - Saxifraga plant named ‘Rockwhite’ - Google Patents

Saxifraga plant named ‘Rockwhite’ Download PDF

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Publication number
USPP19010P2
USPP19010P2 US11/800,695 US80069507V USPP19010P2 US PP19010 P2 USPP19010 P2 US PP19010P2 US 80069507 V US80069507 V US 80069507V US PP19010 P2 USPP19010 P2 US PP19010P2
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color
saxifraga
plant
rockwhite
flower
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US11/800,695
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Martien Everett Gutter
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Syngenta Seeds BV
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Syngenta Seeds BV
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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
    • A01H6/80—Saxifragaceae, e.g. Heuchera

Definitions

  • the present invention comprises a new distinct cultivar of Saxifraga, botanically known as Saxifraga ⁇ arendsii.
  • the new Saxifraga is a product of a planned breeding program conducted in a greenhouse in Enkhuizen, Netherlands.
  • the new Saxifraga cultivar has a compact plant, a white flower color and an early flowering.
  • the new Saxifraga is propagated by cuttings resulting from a single seedling.
  • This seedling originates from a white flowering selection in Saxifraga ⁇ arendsii ‘Purperteppich’ (not patented), identified as number ‘D621.’
  • This selection was made through three cycles of half sib selection. The selection was done in the period April 2001 until March 2003 in Enkhuizen, The Netherlands. The seedling was selected in March 2003 in Enkhuizen.
  • the present cultivar has been repeatedly asexually reproduced by cuttings in Enkhuizen, Netherlands, since 2003.
  • the distinctive characteristics of this new Saxifraga are stable and reproduced true to type in successive generations of asexual reproduction. It takes 23 to 29 weeks to produce a finished plant, depending on the temperature.
  • the new Saxifraga plant is a perennial in all climatic zones in the US.
  • the new Saxifraga plant is illustrated by the accompanying photographic drawing which shows blooms, buds and foliage of the plant in full color, the color showing being as true as can be reasonably obtained by conventional photographic procedures.
  • Plants of the new Saxifraga differ primarily from the plants of the originator ‘Purperteppich’ in the following characteristics:
  • Plants of the new variety have uniform white flowers and a compact growth habit, whereas plants of ‘Purperteppich’ have red, rose and white flowers and a loose growth habit.

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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 Saxifraga plant, particularly distinguished by its white flower color, early flowering and compact plant habit.

Description

Latin name of the genus and species of the plant claimed: Saxifraga×arendsii.
Varietal denomination: ‘Rockwhite’.
BACKGROUND OF THE NEW PLANT
The present invention comprises a new distinct cultivar of Saxifraga, botanically known as Saxifraga×arendsii.
The new Saxifraga is a product of a planned breeding program conducted in a greenhouse in Enkhuizen, Netherlands. The new Saxifraga cultivar has a compact plant, a white flower color and an early flowering.
The new Saxifraga is propagated by cuttings resulting from a single seedling. This seedling originates from a white flowering selection in Saxifraga×arendsii ‘Purperteppich’ (not patented), identified as number ‘D621.’ This selection was made through three cycles of half sib selection. The selection was done in the period April 2001 until March 2003 in Enkhuizen, The Netherlands. The seedling was selected in March 2003 in Enkhuizen.
The present cultivar has been repeatedly asexually reproduced by cuttings in Enkhuizen, Netherlands, since 2003. The distinctive characteristics of this new Saxifraga are stable and reproduced true to type in successive generations of asexual reproduction. It takes 23 to 29 weeks to produce a finished plant, depending on the temperature.
The new Saxifraga plant is a perennial in all climatic zones in the US.
DESCRIPTION OF THE DRAWING
The new Saxifraga plant is illustrated by the accompanying photographic drawing which shows blooms, buds and foliage of the plant in full color, the color showing being as true as can be reasonably obtained by conventional photographic procedures.
 DESCRIPTION OF THE NEW CULTIVAR
The following detailed descriptions set forth the distinctive characteristics of this new Saxifraga. The data which defines these characteristics were collected from asexual reproductions carried out in Enkhuizen, The Netherlands. The plant history was taken on plants of 30 weeks old. The instant plant was grown in an 11 cm container in a plastic tunnel.
Color references are primarily to the R.H.S. Colour Chart of The Royal Horticultural Society of London.
Plants of the new Saxifraga differ primarily from the plants of the originator ‘Purperteppich’ in the following characteristics:
Plants of the new variety have uniform white flowers and a compact growth habit, whereas plants of ‘Purperteppich’ have red, rose and white flowers and a loose growth habit.
TABLE 1
DIFFERENCES BETWEEN THE NEW CULTIVAR ‘ ROCKWHITE’
AND A SIMILAR CULTIVAR
‘Findling white’
‘Rockwhite’ (not patented)
Flower stem length 6-13 cm 4-8 cm
Petal shape Orbicular Oval
Time of flowering 23-29 weeks after cutting 26-32 weeks after cutting
  • The plant:
      • Classification.—Botanical: Saxifraga×arendsii.
  • Parentage:
      • Originator selection.—‘Purperteppich’ (not patented).
  • Propagation:
      • Type of cutting.—Terminal cuttings.
      • Time to initiate roots.—12-14 days at 18° C.
      • Time to produce a rooted cutting.—5 weeks.
      • Root description.—Fine, fibrous and white in color.
  • Plant description:
      • General appearance.—Makes mats of rosetts. Each rosette develops several short branches, and one or more branched flower stems.
      • Growth and branching habit.—Freely branching habit, freely flowering, vigorous.
      • Plant height.—14 cm.
      • Plant spread.—15 cm.
  • Lateral branches:
      • Length.—3-5 cm.
      • Diameter.—1.2 mm.
      • Texture.—Smooth; pubescent with long hairs: 2-4 mm.
      • Internode length.—2-5 mm.
      • Color.—145C.
  • The foliage:
      • Arrangement.—Alternate.
      • Shape of blade.—Three-lobed.
      • Length, mature leaves.—0.6-0.8 cm.
      • Width, mature leaves.—0.5-0.7 cm.
      • Apex.—Acute.
      • Base.—Acute.
      • Margin.—Entire.
      • Texture.—Smooth, slightly pubescent.
      • Venation pattern.—Palmate.
      • Color of upper surface.—144A.
      • Color of lower surface.—144B.
      • Venation, upper surface.—145B.
      • Venation, lower surface.—144A.
  • The petiole:
      • Length.—0.6-0.8 cm.
      • Width.—1 mm.
      • Color upper surface.—144C.
      • Color lower surface.—144B.
      • Texture.—Smooth; slightly pubescent.
  • The flower:
      • Inflorescence type.—Each rosette develops 1-3 branched flower stems.
      • Flower type.—Single, solitary; symmetry: radial symmetric.
      • Number of branches per flower stem.—2-5.
      • Number of flowers and flower buds per flower stem.—2-15.
      • Length flower stem.—6-13 cm.
      • Flower position.—At top of branch.
      • Fragrance.—Absent.
      • Flowering season.—Spring.
      • Flower diameter.—1.2-2.2 cm.
      • Lastingness of the bloom.—40-50 days.
      • Lastingness of an individual flower.—3-6 days.
  • Flower buds:
      • Bud length (at stage of showing color).—3 mm.
      • Bud diameter.—3 mm.
      • Bud shape.—Orbicular.
      • Texture.—Smooth; pubescent, hairs have a purple tip (N79B).
      • Color, just before opening.—144B, with 63A on apex.
  • Petals:
      • Quantity.—5 per flower, imbricate.
      • Shape.—Orbicular.
      • Apex.—Rounded to acuminate.
      • Base.—Shortly attenuate.
      • Length.—7-10 mm.
      • Width.—5-8 mm.
      • Margin.—Entire.
      • Texture.—Smooth.
      • Color upper and lower surface.—Lighter than 155C; 63A on apex and round central vein.
      • Venation pattern.—Bowed.
      • Venation upper and lower surface.—150A.
  • Sepals:
      • Quantity.—5 per flower.
      • Shape.—Ovate.
      • Apex.—Acute.
      • Margin.—Entire.
      • Length.—3-4 mm.
      • Width.—2.5-3.5 mm.
      • Color upper surface.—144A, with some 63A on apex.
      • Color lower surface.—144A.
      • Texture upper surface.—Smooth; slightly pubescent, hairs have a purple tip (N79B).
      • Texture lower surface.—Smooth, glabrous.
  • Peduncles:
      • Length.—0.5-2.5 cm.
      • Diameter.—1 mm.
      • Color.—144A.
      • Texture.—Smooth; pubescent, hairs have a purple tip (N79B).
  • Reproductive organs:
      • Androecium.—
      • Stamen number.—10, not fused.
      • Filament length.—3-5 mm.
      • Filament shape.—Threadlike.
      • Filament color.—154B.
      • Anther shape.—Bi-lobed.
      • Anther length.—1.5 mm.
      • Anther color.—164B.
      • Color of pollen.—2A.
      • Amount of pollen.—Normal.
      • Gynoecium.—
      • Pistil number.—2.
      • Pistil length.—3-4 mm.
      • Stigma color.—155A.
      • Style color.—154C.
      • Ovary color.—151B.
  • Seed development: Seed development has not been observed to date.
  • Disease/pest resistance: No disease/pest resistance has been observed to date.

Claims (1)

1. A new and distinct cultivar of Saxifraga plant named ‘Rockwhite,’ as substantially illustrated and described herein.
US11/800,695 2007-05-07 2007-05-07 Saxifraga plant named ‘Rockwhite’ Active USPP19010P2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/800,695 USPP19010P2 (en) 2007-05-07 2007-05-07 Saxifraga plant named ‘Rockwhite’

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/800,695 USPP19010P2 (en) 2007-05-07 2007-05-07 Saxifraga plant named ‘Rockwhite’

Publications (1)

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USPP19010P2 true USPP19010P2 (en) 2008-07-08

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AS Assignment

Owner name: SYNGENTA SEEDS B.V., NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GUTTER, MARTIEN EVERETT;REEL/FRAME:019453/0504

Effective date: 20070501

AS Assignment

Owner name: SYNGENTA CROP PROTECTION AG, SWITZERLAND

Free format text: PURCHASE AGREEMENT;ASSIGNOR:SYNGENTA SEEDS B.V.;REEL/FRAME:027025/0747

Effective date: 20070101