USPP19008P2 - Grapevine plant named ‘Sugrathirtythree’ - Google Patents

Grapevine plant named ‘Sugrathirtythree’ Download PDF

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USPP19008P2
USPP19008P2 US11/651,838 US65183807V USPP19008P2 US PP19008 P2 USPP19008 P2 US PP19008P2 US 65183807 V US65183807 V US 65183807V US PP19008 P2 USPP19008 P2 US PP19008P2
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sugrathirtythree
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US20080184407P1 (en
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David W. Cain
Michael J. Striem
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Sun World International LLC
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Sun World International LLC
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01HNEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H6/00Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
    • A01H6/88Vitaceae, e.g. Vitus [grape]
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01HNEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H5/00Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
    • A01H5/08Fruits

Abstract

A new and distinct grapevine variety characterized by possessing elliptic shaped, medium sized green-yellowish seedless grapes having a crisp flesh texture. The grapes have a mild neutral flavor, medium and up sugar content, and excellent eating quality. The new variety possesses exceptional late-ripening characteristics. Additionally, the bunches have the ability to stay on the vine for a month or more, while maintaining commercial harvest quality.

Description

Lain name of the genus and species claimed: Vitis vinifera.
Variety denomination: ‘Sugrathirtythree’.
BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates to the discovery and asexual propagation of a new variety of grapevine as herein described and illustrated. The new variety ‘Sugrathirtythree’ was first hybridized by David W. Cain and Michael J. Striem in Wasco, Kern County, Calif., the variety being originated by controlled hybridization and subsequent culture of seed traces and embryo rescue procedures.
The new variety ‘Sugrathirtythree’ is characterized by producing late-season ripening, green-yellowish, seedless grapes with mild neutral flavor. The berries have a naturally medium size and an elliptic shape, crisp flesh texture, medium and up sugar content and excellent eating quality. The new variety ‘Sugrathirtythree’ is exceptional with its late ripening habit, as the grapes ripen after any other seedless grape cultivars grown and marketed commercially in California. Furthermore, the bunches are able to stay on the vine for a month or more, while still maintaining commercial harvest quality.
The seed parent is the varietal selection ‘92147-050-238’ (unpatented) and the pollen parent is the varietal selection ‘92187-055-030’ (unpatented). The parent varieties were first crossed in May, 1999, by David W. Cain and Michael J. Striem. The new variety was created by hybridization of two “seedless” grapes possessing small, abortive, vestigial ovules. From the initial population of hybrid ovules, embryo rescue methods were used to produce a population from which the present variety was selected. The date of first sowing was August, 1999, and the date of first flowering was May, 2001.
The new variety ‘Sugrathirtythree’ was first asexually propagated in December, 2001, in Wasco, Kern County, Calif., by Dr. Michael Striem using hardwood cuttings.
The new variety ‘Sugrathirtythree’ resembles its seed parent ‘92147-050-238’ in characteristics such as berry color and shape. However, ‘Sugrathirtythree’ has a much larger natural berry size (approximately 4.55 grams) as compared to the natural berry size of the seed parent (approximately 3.35 grams). Additionally, the seed trace of ‘Sugrathirtythree’ is very small and soft, whereas the seed parent ‘92147-050-238’ has a noticeable, dark and hard seed trace.
The new variety ‘Sugrathirtythree’ resembles its pollen parent ‘92187-055-030’ in characteristics such as berry color and shape. However, ‘Sugrathirtythree’ has a much larger natural berry size (approximately 4.55 grams) as compared to the natural berry size of the pollen parent (approximately 4.26 grams). Furthermore, while the berries of the pollen parent turn brown when exposed to direct sunshine, the berries of the new variety ‘Sugrathirtythree’ remain light-green with a milky-creamy/opaque look, turning slightly yellowish at the end of the harvest season.
The new variety ‘Sugrathirtythree’ resembles the comparable variety ‘Sugraone’ (U.S. Pat. No. 3,106) in its appearance, bunch structure and berry shape. However, ‘Sugrathirtythree’ ripens about 7-9 weeks later than ‘Sugraone’. In addition, the new variety ‘Sugrathirtytree’ develops higher sugar levels than ‘Sugraone’ at harvest.
The new ‘Sugrathirtythree’ variety has been shown to maintain its distinguishing characteristics through successive asexual propagations by, for example, cuttings.
It is to be understood that variations of the usual magnitude from the described above may occur with changes in growing conditions, irrigation, fertilization, pruning, management and climatic variations.
BRIEF DESCRIPTION OF THE FIGURE
The accompanying drawing in FIG. 1 illustrates in full color a typical cluster of berries, a young shoot, and a mature leaf blade of the new grapevine at 5 years of age. The colors are as nearly true as is reasonably possible in a color representation of this type.
DETAILED BOTANICAL DESCRIPTION OF THE INVENTION
Throughout this specification, color names beginning with a small letter signify that the name of that color, as used in common speech, is aptly descriptive. Color names beginning with a capital letter designate values based upon the R.H.S. Colour Chart, published by The Royal Horticultural Society, London, England.
Many of the description values in this specification are based on and conform to those set forth by the International Board for Plant Genetic Resources Institute Grape Descriptors (Vitis spp.) of 1983 and/or 1997 which was developed in collaboration with the Office International de la Vigne et du Vin (OIV) and the International Union for the Protection of New Varieties of Plants (UPOV).
The descriptive matter which follows pertains to ‘Sugrathirtythree’ plants grown in the vicinity of Wasco, Kern County, Calif., during 2002, 2003, 2004 and 2005 and is believed to apply to plants of the variety grown under similar conditions of soil and climate elsewhere:
VINE
  • General:
      • Planting.—Trained on ‘Cross-Arm’/T trellis, planted in a 7 ft.×12 ft. spacing.
      • Practices.—Gene-pool-vine: Cane pruned to approximately 6 canes per vine and trimmed once in the early summer. Test-vines: Spur pruned to approximately 12 to 18 two-bud-spurs per vine.
      • Size.—Medium. Height: Approximately 2.00 m. Width: Approximately 2.12 m.
      • Vigor.—Medium-weak.
      • Density of foliage.—Medium.
      • Productivity.—Very productive — approximately 65 clusters per vine.
      • Yield.—Approximately 4.47 kg per vine, thinned to approximately 32 clusters per vine.
      • Root stock.—Not applicable.
      • Own root.—Yes.
  • Trunk:
      • Cross section shape.—Irregular flat elliptic to broadly elliptic.
      • Diameter (at 20 cm above soil level).—Approximately 56 mm.
      • Straps.—Very long.
      • Surface texture.—Medium.
      • Inner bark color.—Near Greyed-orange 165A.
      • Outer bark color.—Near Grey 201B.
SHOOTS
  • Young Shoot:
      • Form of tip.—Wide open.
      • Distribution of anthocyanin coloration of tip.—Absent.
      • Intensity of anthocyanin coloration of tip.—Absent.
      • Density of prostrate hairs on tip.—Very sparse.
      • Density of erect hairs on tip.—Absent.
  • Woody shoot:
      • Shape.—Slender.
      • Internode length.—Long, Approximately 69.0 mm.
      • Width at node.—Approximately 8.6 mm.
      • Shape of cross section.—Circular.
      • Surface.—Smooth.
      • Main color.—Near Greyed-orange 165B to 165C.
      • Lenticels.—Absent.
      • Density of erect hairs on nodes.—None or very sparse.
      • Density of erect hairs on internodes.—None or very sparse.
      • Growth of axillary shoots.—Medium, approximately 5.4 cm.
  • Flowering shoot:
      • Vigor during flowering.—Medium.
      • Attitude during flowering on shoots which are not tied.—Semi-erect.
      • Color of dorsal side of internodes.—Near Yellow-green 144A with near Greyed-purple 183C stripes.
      • Color of ventral side of internodes.—Near Yellow-green 144A with near Greyed-purple 183C stripes.
      • Color of dorsal side nodes.—Near Yellow-green 144A with near Greyed-purple 183C stripes.
      • Color of ventral side of nodes.—Near Yellow-green 144A with near Greyed-purple 183C stripes.
      • Density of erect hairs on nodes.—None.
      • Erect hairs on internode.—Absent.
      • Density of prostrate hairs on nodes.—None.
      • Density of prostrate hairs on internodes.—Absent.
      • Anthocyanin coloration of buds.—Absent or very weak.
  • Tendrils:
      • Distribution on the shoot at full flowering.—Discontinuous.
      • Thickness.—Medium.
      • Color.—Near Yellow-green 145A.
      • Form.—Bifurcated.
      • Number of consecutive tendrils.—Up to 2.
      • Length of tendril.—Long, approximately 22.5 cm.
LEAVES
  • Young leaves:
      • Color of upper surface of first 4 distal unfolded leaves.—New Yellow-green 144A.
      • Average intensity of anthocyanin coloration of six distal leaves prior to flowering.—Absent or very weak.
      • Density of prostrate hairs between veins at lower surface of 4th distal unfolded leaf.—Absent.
      • Density of erect hairs between veins at lower surface of 4th distal unfolded leaf.—Absent.
      • Density of prostrate hairs on veins at lower surface of 4th distal unfolded leaf.—Absent.
      • Density of erect hairs on veins at lower surface of 4th distal unfolded leaf.—Absent.
  • Mature leaves:
      • Average length.—Approximately 142.3 mm.
      • Average width.—Approximately 154.1 mm.
      • Size of blade.—Medium.
      • Shape of blade.—Circular.
      • Number of lobes.—Approximately 3.
      • Anthocyanin coloration of main veins on the upper side of the blade.—Absent.
      • Mature leaf profile.—Flat.
      • Blistering surface of blade upper surface.—Absent.
      • Leaf blade tip.—In the plane of the leaf.
      • Undulation of margin.—Slight.
      • Thickness.—Medium.
      • Undulation of blade between main and lateral veins.—Absent.
      • Shape of teeth.—Both sides convex.
      • Length of teeth.—Long.
      • Ratio length/width of teeth.—Medium.
      • General shape of petiole shape.—Wide open.
      • Tooth at petiole sinus.—Absent.
      • Petiole sinus limited by veins.—Absent.
      • Shape of upper lateral sinus.—Open.
      • Depth of upper lateral sinus.—Medium.
      • Density of prostrate hairs between veins on lower surface of blade.—Absent.
      • Density of erect hairs between veins on lower surface of blade.—Absent.
      • Density of prostrate hairs on main veins on lower surface of blade.—Absent.
      • Density of erect hairs on main veins on lower surface of blade.—Absent.
      • Density of prostrate hairs on main veins on upper surface of blade.—Absent.
      • Autumn coloration of leaves.—Near Greyed-yellow 162A. slow to develop. Normally frost kills leaves before extensive color change.
  • Upper surface:
      • Color.—Near Green 137A.
      • Surface texture.—Smooth.
      • Surface appearance.—Dull.
  • Lower surface:
      • Color.—Near Green 138B.
      • Anthocyanin coloration of main veins on lower leaf surface.—Absent.
      • Glossiness.—Weak.
      • Pubescence.—Absent.
      • Surface texture.—Smooth.
      • Surface appearance.—Dull.
  • Petiole:
      • Length of petiole.—Short, approximately 6.31 cm.
      • Length of petiole compared to middle vein.—Slightly shorter.
      • Diameter.—Approximately 3.5 mm.
      • Density of prostrate hairs on petiole.—None.
      • Density of erect hairs on petiole.—None.
      • Shape of base of petiole sinus.—V-shaped.
      • Color.—Near Yellow-green 145B.
  • Buds:
      • Shape.—Pointed.
      • Size.—Medium, approximately 5 mm (length)×6 mm (width).
      • Position.—Markedly held out, approximately 45° angle.
      • Cane bud fruitfulness.—Basal most fruitful.
      • Time of bud burst.—Medium, Approximately March 22.
FLOWERS
  • General:
      • Flower sex.—Hermaphrodite.
      • Length of first inflorescence.—Long, approximately 22.0 cm.
      • Position of first flowering node.—Fifth.
      • Number of inflorescences per shoot.—Up to 1.
      • Date of full bloom.—Approximately May 12.
      • Time of bloom.—Medium, compared with similar varieties in the growing area of Wasco.
      • Size (diameter of fully open flower).—Medium, approximately 5 mm.
FRUIT
  • General:
      • Ripening period.—Late, approximately 35 days after ‘Thompson Seedless’ (unpatented) variety.
      • Use.—Fresh market.
      • Keeping quality.—Good.
      • Shipping quality.—Good.
      • Date of first harvest.—Approximately September 15.
      • Solids-sugar.—High (≈21%). Refractometer test: Approximately 22.0. Acid: medium, approximately 4.12 grams per liter tartaric acid.
      • Juice pH.—Approximately 3.8.
      • Tendency to crack.—Absent.
      • Sensitivity to sunburn.—Absent.
      • Fruit shrivel after ripe.—Absent.
      • Secondary clusters.—Few.
      • Resistance.—No specific resistance nor susceptibility to diseases or pests has been observed in this variety.
  • Cluster:
      • Bunch size (peduncle excluded).—Small.
      • Bunch length (peduncle excluded).—Intermediate, approximately 29.97 cm.
      • Bunch width.—Approximately 12.43 cm.
      • Bunch weight.—Low, approximately 203.33 g (average).
      • Bunch density.—Medium.
      • Number of berries.—Approximately 129.0.
      • Form.—Conical.
  • Peduncle:
      • Length of peduncle.—Short, approximately 15.3 mm.
      • Lignification of peduncle.—Medium.
      • Color.—Near Yellow-green 144B.
  • Berry:
      • Size.—Medium.
      • Uniformity of size.—Uniform.
      • Berry weight.—Natural: Medium, approximately 5.16 g. Gibberellic acid treated: High, approximately 7.26 to 8.74 g.
      • Shape.—Elliptic.
      • Presence of seeds.—Rudimentary.
      • Cross section.—Circular.
      • Dimensions.—Longitudinal axis: Approximately 19.47 mm. Horizontal axis: Approximately 15.2 mm.
      • Skin color (without bloom).—Near Yellow-green 151A.
      • Coloration of flesh.—Near Greyed-yellow 161A.
      • Juiciness of flesh.—Slightly juicy.
      • Berry firmness.—Firm.
      • Particular flavor.—None.
      • Bloom (cuticular wax).—Very weak.
      • Pedicel length.—Intermediate, approximately 10.02 mm.
      • Berry separation from pedicel.—Medium.
      • Visibility of hilum.—Unclear.
  • Skin:
      • Thickness.—Medium.
      • Texture.—Medium.
      • Reticulation.—Absent.
      • Roughness.—Absent.
      • Tenacity.—Tenacious to flesh.
  • Seed:
      • Number of seeds per berry.—Approximately 3.08.
      • Size.—Small.
      • Color.—Ranges between green to yellow. Seed color changes dramatically with environmental conditions and maturity.
      • Texture.—Soft.
      • Endosperm.—Absent.
      • Fresh weight of seed-traces/berry.—Approximately 6.31 mg.
      • Room-dry weight of seed-traces/berry.—Approximately 1.23 mg.

Claims (1)

1. A new and distinct variety of grapevine as herein illustrated and described.
US11/651,838 2007-01-09 2007-01-09 Grapevine plant named ‘Sugrathirtythree’ Active USPP19008P2 (en)

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