Blackberry plant named ‘DrisBlackThirteen’

This invention relates to a new and distinct variety of blackberry plant named ‘DrisBlackThirteen’, particularly characterized by having medium to high productivity, medium-sized, black berries and self-fruitful plants, is disclosed.

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Description

Genus and species: Rubus L. subgenus Rubus.

Variety denomination: ‘DrisBlackThirteen’.

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct blackberry cultivar designated ‘DrisBlackThirteen’ and botanically known as Rubus L. subgenus Rubus. This new blackberry variety was identified in Santa Cruz County, Calif. in December 2009 and originated from a cross between the proprietary female parent blackberry plant ‘BP571 (259L4)’ (unpatented) and the proprietary male parent blackberry plant ‘BP554 (252I5)’ (unpatented). The original seedling of the new cultivar was first asexually propagated by tissue culture and root cuttings at a nursery in Santa Cruz County, Calif. in 2009. ‘DrisBlackThirteen’ was subsequently asexually propagated by tissue culture and root cuttings and underwent further testing at a nursery in Santa Cruz County, Calif. from 2012 to 2014. The present invention has been found to be stable and reproduce true to type through successive asexual propagations.

SUMMARY OF THE INVENTION

The following are the most outstanding and distinguishing characteristics of this new cultivar when grown under normal horticultural practices in Santa Cruz County, Calif.

    • 1. Medium to high productivity;
    • 2. Medium sized, black berries; and
    • 3. Self-fruitful plants.

DESCRIPTION OF THE PHOTOGRAPHS

This new blackberry plant is illustrated by the accompanying photographs which show the plant's canes, flowers, fruit, and leaves. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. The photographs are of plants that are 2 years old.

FIG. 1 shows a section of a young cane without spines.

FIG. 2 shows the flowers at various stages.

FIG. 3 shows the upper and lower surfaces of the leaves.

 DESCRIPTION OF THE NEW VARIETY

The following descriptions of ‘DrisBlackThirteen’ are based on observations made in Santa Cruz County, Calif. on 2-year old plants. This description is in accordance with UPOV terminology. Color designations, color descriptions, and other phenotypical descriptions may deviate from the stated values and descriptions depending upon variation in environmental, seasonal, climatic and cultural conditions. ‘DrisBlackThirteen’ has not been observed under all possible environmental conditions. Color terminology follows The Royal Horticultural Society Colour Chart, London (R.H.S.) (2007 edition). Descriptive terminology is from the Plant Identification Terminology, An Illustrated Glossary 2nd edition, by James G. Harris and Melinda Woolf Harris, unless where otherwise defined.

DETAILED BOTANICAL DESCRIPTION

  • Classification:
      • Family.—Rosaceae.
      • Botanical.—Rubus L. subgenus Rubus.
      • Common name.—Blackberry.
      • Variety name.—‘DrisBlackThirteen’.
  • Parentage:
      • Female parent.—Proprietary blackberry plant named ‘BP571 (259L4)’ (unpatented).
      • Male parent.—Proprietary blackberry plant named ‘BP554 (252I5)’ (unpatented).
  • Plant:
      • Vigor.—Medium.
      • Growth habit.—Semi-upright.
      • Productivity.—Medium to high.
      • Propagation.—Tissue culture and root cuttings.
      • Self-fruitfulness.—Self-fruitful.
      • Time of bud burst.—February.
  • Canes:
      • Fruiting lateral length (4th lateral from tip).—Medium; 27.3 cm.
      • Number of fruit per lateral.—11.
      • Fruiting on current year's cane.—Present.
      • Cane internodal distance.—5.5 cm.
      • Number of new canes during flowering.—5-6.
      • New cane strength (observed full-grown shoot after picking).—Medium to strong.
      • Glaucosity observed on full-grown shoot after picking.—Medium.
      • Young shoots.—Quantity: 5-6. Time of emergence from soil: February. Anthocyanin coloration (during rapid growth): Weak; RHS 181B (Medium greyed-red). Intensity of green color: Medium; RHS 144B (Medium yellow-green).
      • Dormant cane.—Length: 4-5 ft pruned. Diameter (in central third): 1.0-1.5 cm. Cross section (from mid cane observed at end of first growing season): Angular to grooved. Color: Shade side: RHS 144B (Medium yellow-green). Sun side: RHS 187B (Dark greyed-purple). Number of branches: 15-25. Distribution of branches: Over whole length. Anthocyanin coloration: Medium; RHS 187B (Dark red-purple). Spines: Absent.
  • Leaves:
      • Type.—Palmate.
      • Predominant number of leaflets.—Five.
      • Overlapping or relative position of lateral leaflets.—Overlapping.
      • Color.—Upper surface: Medium; RHS 144B (Medium yellow-green). Lower surface: Medium; RHS 144B (Medium yellow-green).
      • Glossiness of upper side.—Medium.
      • Cross section profile.—Flat (level with the leaflet blade).
      • Leaflets.—Shape: Ovate. Margin: Doubly serrate. Depth of incisions: 2-5 cm. Type of incision margin: Bi-serrate. Apex: Truncate. Base: Attenuate to Obtuse. Rachis length between terminal leaflet and adjacent lateral leaflet: 49.6 mm.
      • Lateral leaflet (basal pair).—Length: 127.7 mm. Width: 89.0 mm. Length/width ratio: 1.4.
      • Terminal leaflet.—Length: Medium to long; 141.4 mm. Width: Medium; 103.9 mm. Length/width ratio: 1.4. Lobing: Absent. Undulation of margin (rippling of margin): Very weak to weak. Blistering between veins (rugosity): Medium. Shape: Ovate to orbicular. Tip: Complex. Base: Obtuse. Margin: Doubly serrate. Cross-section: V-shaped.
      • Petiole.—Length: 21.2 mm. Diameter: 2.4 mm. Pigmentation: Upper surface: Lightly; RHS 144B (Medium yellow-green). Lower surface: Lightly; RHS 144B (Medium yellow-green). Color: RHS 144A (Medium yellow-green).
      • Stipule.—Size: Length of 6.0-15.0 mm and width of 1.0 mm. Orientation: Clasping. Color: RHS 144A (Medium yellow-green).
  • Inflorescence:
      • Flower diameter.—Medium; 34.57 mm.
      • Flower number (at 3rd node from tip of lateral).—4.
      • Petal.—Length: 18.00 mm. Width: 15.23 mm. Length/width ratio: 1.2. Color: RHS 69C (Light red-purple).
      • Pedicel.—Length: 18.08 mm. Diameter: 1.56 mm. Color: RHS 143D (Moderate yellow-green).
      • Time of beginning of flowering on current year's cane.—June-August.
  • Fruit:
      • Size.—Medium.
      • Length.—Short to medium; 32.65 mm.
      • Width.—Medium; 23.43 mm.
      • Ratio of length to width.—Medium; 1.4.
      • Weight (g/fruit).—8.7 g.
      • Soluble solids (%) (in Brix).—10.5.
      • Titratable acidity.—(% as citric acid): 0.41.
      • Seed weight (g/seed).—0.00717.
      • Number of drupelets/fruit.—Medium; 97.17.
      • Color.—Immature: RHS 144B (Medium yellow-green). Maturing: RHS 59C (Medium red-purple). Mature: RHS 203A (Black).
      • Firmness.—Medium to firm.
      • Glossiness.—Weak to medium.
      • Shape in longitudinal section.—Medium ovate.
      • Time of ripening on current year's cane.—July-October.
      • Harvest interval.—Mid-August to mid-November.
      • Yield.—Total yield from plants that were two-years old or older ranged from 7,300 lb/acre to 44,700 lb/acre during a three year period when grown in Watsonville, Calif.
  • Disease, pest, and stress resistance:
      • Verticillium wilt (Verticillium spp.).—Susceptible.

COMPARISON WITH PARENTAL AND COMMERCIAL VARIETIES

‘DrisBlackThirteen’ differs from the proprietary female parent ‘BP571 (259L4)’ (unpatented) in that ‘DrisBlackThirteen’ has larger, firmer fruit with higher Brix and lower titratable acidity than ‘BP571 (259L4)’.

‘DrisBlackThirteen’ differs from the proprietary male parent ‘BP554 (252I5)’ (unpatented) in that ‘DrisBlackThirteen’ has much larger, but softer fruit than ‘BP554 (252I5)’. Additionally, ‘DrisBlackThirteen’ is spineless, whereas ‘BP554 (252I5)’ has spines.

‘DrisBlackThirteen’ differs from the commercial variety ‘DrisBlackTwo’ (U.S. Plant Pat. No. 22,002) in that ‘DrisBlackThirteen’ has medium vigor and medium to high productivity, whereas ‘DrisBlackTwo’ has high vigor and high productivity. Additionally, ‘DrisBlackThirteen’ has fruit that is weakly to medium glossy and medium to firm, whereas ‘DrisBlackTwo’ has fruit that is strongly glossy and firm.

‘DrisBlackThirteen’ differs from commercial variety ‘APF-45’ (U.S. Plant Pat. No. 22,449) in that ‘DrisBlackThirteen’ has medium ovate shaped fruit with lower titratable acidity, whereas ‘APF-45’ has elongated to blocky to slightly conical shaped fruit with higher titratable acidity.

Claims

1. A new and distinct variety of blackberry plant named ‘DrisBlackThirteen’, substantially as illustrated and described herein.

Referenced Cited
U.S. Patent Documents
PP6679 March 21, 1989 Moore
PP6782 May 9, 1989 Jennings
PP13525 January 28, 2003 Fear
PP13758 May 6, 2003 Fear
PP13759 May 6, 2003 Fear
PP14682 April 6, 2004 Fear
PP14765 May 4, 2004 Fear et al.
PP14780 May 11, 2004 Fear et al.
PP15058 August 3, 2004 Fear et al.
PP17162 October 24, 2006 Clark et al.
PP17983 September 4, 2007 Cabrera Avalos
PP22002 July 5, 2011 Sills et al.
PP22449 January 10, 2012 Clark
PP23497 March 26, 2013 Clark et al.
PP23725 July 9, 2013 Sills et al.
PP24249 February 18, 2014 Clark
PP24609 July 8, 2014 Sills et al.
PP24701 July 29, 2014 Sills et al.
PP24878 September 16, 2014 Sills et al.
PP25502 May 5, 2015 Sills et al.
PP26501 March 15, 2016 Sills et al.
PP26611 April 19, 2016 Sills et al.
PP26774 May 31, 2016 Sills et al.
PP27129 September 6, 2016 Sills et al.
PP27130 September 6, 2016 Sills et al.
PP27146 September 13, 2016 Sills et al.
20160183425 June 23, 2016 Sills et al.
20160249505 August 25, 2016 Sills et al.
Other references
  • Sills et al., U.S. Appl. No. 14/999,063, filed Mar. 25, 2016, titled “Blackberry plant named DrisBlackSixteen”.
  • Voss, Donald, “The Royal Horticultural Society Colour Chart 2001”, Journal American Rhododendron Society, vol. 56, No. 1, 2001, 3 pages.
  • Williams et al., “DNA Polymorphisms Amplified by Arbitrary Primers are useful as Genetic Markers”, Nucleic Acids Research, vol. 18, No. 22, 1990, pp. 6531-6535.
Patent History
Patent number: PP27681
Type: Grant
Filed: Dec 19, 2014
Date of Patent: Feb 21, 2017
Patent Publication Number: 20160183424
Assignee: Driscoll's, Inc. (Watsonville, CA)
Inventors: Gavin R. Sills (Gilroy, CA), Andrea M. Pabon (Gilroy, CA), Mark Crusha (Capitola, CA)
Primary Examiner: Keith Robinson
Application Number: 14/544,298
Classifications
Current U.S. Class: Bramble (PLT/203)
International Classification: A01H 5/08 (20060101);