A new and distinct grapevine variety characterized by producing dark-red skinned, very juicy, firm, round berries that have an excellent eating quality. The berries ripen late season, having a naturally large size and high sugar content.

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Patent
   PP19750
Priority
Dec 19 2007
Filed
Dec 19 2007
Issued
Feb 17 2009
Expiry
Dec 19 2027
Inventors
Cain, Davi…
Assg.orig
Sun World …
Assg.curr
Sun World …
Entity
unknown
Referenced by
0
References
2
Maint.:
n/a
BACKGROUND AND SUMMA…
BRIEF DESCRIPTION OF…
DETAILED BOTANICAL D…
VINE
SHOOTS
LEAVES
FLOWERS
FRUIT
1. A new and distinct variety of grapevine as herein illustrated and described.

Latin name of the genus and species claimed: Vitis vinifera.

Variety denomination: ‘Sugrathirtyfour’.

BACKGROUND AND SUMMARY OF THE INVENTION

This invention relates to the discovery and asexual propagation of a new and distinct variety of grapevine as herein described and illustrated. The new variety was first hybridized by David Cain 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 ‘Sugrathirtyfour’ is characterized by producing late ripening, dark-red skinned grapes. The berries have a naturally large size, a round shape, high sugar content, and excellent eating quality. ‘Sugrathirtyfour’ is exceptional with its dark-red almost black color development when ripening. The new variety ‘Sugrathirtyfour’ ripens at the end of the season, about three months after ‘Sugrathirteen’ (U.S. Plant Pat. No. 10,434), about ten days or two weeks after ‘Autumn Royal’ (unpatented), and about three weeks after ‘Sugratwentythree’ (U.S. Plant Pat. No. 13,164).

The seed parent is the varietal selection ‘91171-094-492’ (unpatented) and the pollen parent is the varietal selection ‘92167-052-375’ (U.S. Plant Pat. No. 13,164), otherwise known as ‘Sugratwentythree’. The parent varieties were first crossed in May 1999, by David Cain. 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 2003.

The new variety ‘Sugrathirtyfour’ was first asexually propagated in December 2003, in Wasco, Kern County, Calif., by Michael J. Striem using hardwood cuttings.

The new variety ‘Sugrathirtyfour’ resembles its seed parent ‘91171-094-492’ in many characteristics, such as the same dark-red (almost black) color type with the same type of cluster structure, but differs from its seed parent in that it is not as brittle and the bunch is not as loose as its parent. Additionally, ‘Sugrathirtyfour’ does not develop noticeable seed-traces as its parent would.

The new variety ‘Sugrathirtyfour’ resembles its pollen parent ‘92167-052-375’ or Sugratwentythree in many characteristics, such as the same dark-red (almost black) color type with the same type of cluster structure. Additionally, similar to its pollen parent, ‘Sugrathirtyfour’ has strong pedicles and peduncle resulting in a good attachment of the berries, the skin of the fruit is similar in thickness, but is not tannin and astringent as the skin of ‘Sugratwentythree.’ The new variety ‘Sugrathirtyfour’ also differs from its pollen parent ‘92167-052-375’ in that the berries of the pollen parent are elliptical and much smaller (6.5 gr.) whereas those of the new variety ‘Sugrathirtyfour’ are round and larger (9.1 gr.). Additionally, ‘Sugrathirtyfour’ ripens approximately 3 weeks after the pollen parent.

The new variety ‘Sugrathirtyfour’ resembles the comparable variety ‘Sugrathirteen’ in its color and neutral flavor. However, ‘Sugrathirtyfour’ ripens at the end of the season, three months after Sugrathirteen. The berries of ‘Sugrathirtyfour’ are rounder and naturally much larger (9.1 gr. vs. 4.71 gr.).

The new variety ‘Sugrathirtyfour’ differs from the comparable variety ‘Autumn Royal’ in that ‘Sugrathirtyfour’ has a much larger berry size (9.1 gr. vs. 6.3 gr.) and ripens later by about 10 days or two weeks. In addition the berries of ‘Sugrathirtyfour’ are firmer and have almost no seed trace, while those of ‘Autumn Royal’ may bear a significantly detectible, dark and hard seed trace.

The new ‘Sugrathirtyfour’ variety has been shown to maintain its distinguishing characteristics through successive asexual propagations by, for example, cuttings.

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. 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 ‘Sugrathirtyfour’ plants grown in the vicinity of Wasco, Kern County, Calif., during 2006 and 2007, and is believed to apply to plants of the variety grown under similar conditions of soil and climate elsewhere.

VINE

SHOOTS

LEAVES

FLOWERS

FRUIT

INVENTORS:

Cain, David W., Striem, Michael J.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
PP10434, Aug 08 1996 Sun World International, LLC Grapevine cv. `Sugrathirteen`
PP13164, Jan 25 2001 Sun World International, LLC Grapevine cv. `Sugratwentythree`
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 19 2007Sun World International, LLC(assignment on the face of the patent)
Mar 26 2008CAIN, DAVID W Sun World International, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0207300697 pdf
Mar 26 2008STRIEM, MICHAEL J Sun World International, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0207300697 pdf
May 12 2021Sun World International, LLCOWL ROCK CAPITAL CORPORATION, AS AGENTSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0562250268 pdf
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