Strawberry plant variety named ‘DrisStrawSixty’

Abstract

A new and distinct variety of strawberry plant named DrisStrawSixty, particularly characterized by its yield potential, post-harvest quality of fruit, eating quality of fruit, plant size, and everbearing habit, is disclosed.

Claims

1. A new and distinct variety of strawberry plant named DrisStrawSixty as shown and described herein.

Description

DESCRIPTION OF THE DRAWINGS

(1) This new strawberry plant is illustrated by the accompanying photographs which show fruit of the plant, as well as the flowers and leaves. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. The photographs are of plants that are 16 weeks old.

(2) FIG. 1 illustrates whole fruit of variety DrisStrawSixty.

(3) FIG. 2 illustrates longitudinal cross-sections of fruit of variety DrisStrawSixty.

(4) FIG. 3 illustrates the lower and upper surfaces of flowers of variety DrisStrawSixty.

(5) FIG. 4A illustrates the lower surface of a plant leaf of variety DrisStrawSixty. FIG. 4B illustrates the upper surface of a plant leaf of variety DrisStrawSixty.

(6) FIG. 5 illustrates the overall plant habit including fruit at various stages of development of variety DrisStrawSixty.

DESCRIPTION OF THE NEW VARIETY

(7) The following detailed descriptions set forth the distinctive characteristics of DrisStrawSixty. The data which define these characteristics is based on observations taken in Ventura County, Calif. for six years. 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. DrisStrawSixty has not been observed under all possible environmental conditions. The botanical description of DrisStrawSixty was taken from plants that were 16 weeks old. The indicated values represent averages calculated from measurements of several plants. Color references are primarily to The R.H.S. Colour Chart of The Royal Horticultural Society of London (R.H.S.) (2007 edition). Descriptive terminology follows the Plant Identification Terminology, An Illustrated Glossary, 2.sup.nd edition by James G. Harris and Melinda Woolf Harris, unless where otherwise defined.

DETAILED BOTANICAL DESCRIPTION OF THE PLANT

(8) Classification: Species.Fragaria x ananassa. Common name.Strawberry. Denomination.DrisStrawSixty. Parentage: Female parent.The proprietary variety DrisStrawSeventeen (U.S. Plant Pat. No. 22,218). Male parent.The proprietary variety 540Q 54 (unpatented). Plant: Height.25.2 cm. Diameter.43.9 cm. Number of crowns per plant.3. Growth habit.Semi-upright. Stolon: Average number of daughter plants per square foot.9. Diameter at bract.0.16 mm. Anthocyanin coloration.Present. Anthocyanin color.RHS 173A (Moderate red). Leaf: Number of leaflets.Three only. Color of upper surface.RHS 147A (Moderate olive green). Variegation.Absent. Terminal leaflets.Length: 7.1 cm. Width: 6.7 cm. Length/width ratio: 1.1. Number of teeth/terminal leaflet: 22. Shape of base: Rounded. Margin: Crenate. Shape in cross section: Convex. Petiole.Length: 11.8 cm. Diameter: 4.00 mm. Attitude of hairs: Slightly outwards to horizontal. Bract frequency (number present on each petiole): 2. Petiolule.Length: 9.81 mm. Diameter: 2.32 mm. Stipule.Length: 3.2 cm. Width: 9.29 mm. Anthocyanin coloration: Present. Anthocyanin color: RHS 58A (Moderate purplish red). Inflorescence: Position in relation to foliage.Same level. Pedicel.Attitude of hairs: Upwards. Flower.Flower diameter (petal tip to petal tip on non-flattened flower): 23.44 mm. Arrangement of petals: Overlapping. Stamen: Present. Typical and observed number of flowers per plant: 46.00. Petal.Length: 10.06 mm. Width: 11.55 mm. Length/width ratio: 0.9. Typical and observed petal number: 6. Color of upper side: RHS 155C (Greenish white). Calyx.Diameter (sepal tip to sepal tip, measured on back of flower): 31.61 mm. Sepal.Length (sepal tip to point of attachment to receptacle): 11.04 mm. Width: 5.41 mm. Typical and observed sepal number: 11. Fruit: Length.34.12 mm. Width.33.33 mm. Length/width ratio.1.0. Fruit hollow length.10.58 mm. Fruit hollow width.3.94 mm. Fruit hollow length/width ratio.2.7. Shape.Conical. Color.RHS 45B (Vivid red). Position of achenes.Below surface. Position of calyx attachment.Level with fruit. Attitude of sepals.Upwards. Color of flesh (excluding core).RHS N155D (Yellowish white). Color of core.RHS N155C (Pinkish white). Production: Flowering interval.July to August. Harvest interval.September to December. Type of bearing.Fully remontant. Productivity.0.144 kg to 0.521 kg of fruit per plant per season from 4-month-old plants when grown in Ventura County, Calif. Resistance to abiotic stress, pests, and diseases: Heat.Moderately resistant. Wind.Moderately resistant. Aphids (Aphis spp.).Moderately resistant. Lygus bug (Lygus Hesperus).Moderately resistant. Botrytis fruit rot (Botrytis cinerea).Moderately resistant. Powdery mildew (Podosphaera macularis).Moderately resistant.

COMPARISON WITH PARENTAL AND COMMERCIAL VARIETIES

(9) DrisStrawSixty differs from the proprietary female parent DrisStrawSeventeen (U.S. Plant Pat. No. 22,218) in that DrisStrawSixty has medium vigor, absent or weak leaf blistering, shape in cross section of terminal leaflet that is convex, attitude of petiole hairs that is slightly outwards to horizontal, stipule anthocyanin coloration that is medium, inflorescence on the same level with foliage, and is moderately resistant to botrytis fruit rot and powdery mildew; while DrisStrawSeventeen has strong vigor, medium leaf blistering, shape in cross section of terminal leaflet that is concave, attitude of petiole hairs that is upwards, stipule anthocyanin coloration that is weak, inflorescence beneath foliage, and is moderately susceptible to botrytis fruit rot and powdery mildew. Moreover, fruit of DrisStrawSixty have a conical shape and achenes that are below the surface of fruit, while fruit of DrisStrawSeventeen have a wedged shape and achenes that are level with surface of fruit. Additionally, fruit of DrisStrawSixty have a medium red color, while fruit of DrisStrawSeventeen have a dark red color.

(10) DrisStrawSixty differs from the proprietary male parent 540Q 54 (unpatented) in that DrisStrawSixty has lower vigor, lower yield, and smaller but firmer fruit compared to 540Q 54.

(11) DrisStrawSixty differs from the commercial variety DrisStrawTwentyOne(U.S. Plant Pat. No. 23,506) in that plants of DrisStrawSixty have a semi-upright growth habit, while plants of DrisStrawTwentyOne have an upright growth habit. Further, plants of DrisStrawSixty have medium vigor, while plants of DrisStrawTwentyOne have strong vigor. Additionally, plants of DrisStrawSixty have inflorescence on the same level with foliage, absent or weak blistering on leaves, and fruit that is conical in shape; while plants of DrisStrawTwentyOne have inflorescence beneath foliage, medium blistering on leaves, and fruit that is bi-conical in shape.

(12) DrisStrawSixty differs from the commercial variety DrisStrawThirtyOne (U.S. Plant Pat. No. 24,317) in that plants of DrisStrawSixty have a semi-upright growth habit, while plants of DrisStrawThirtyOne have an upright growth habit. Further, fruit of DrisStrawSixty have a medium red color and achenes below surface of fruit, while fruit of DrisStrawThirtyOne have a dark red color and achenes level with surface of fruit. Additionally, DrisStrawSixty is moderately resistant to aphids, lygus bug, and botrytis fruit rot, while DrisStrawThirtyOne is moderately susceptible to aphids, lygus bug, and botrytis fruit rot.