Apple tree named 'UEB 42723'

Abstract

A new and distinct Malus domestica (Borkh.) ornamental variety that exhibits a columnar tree growth type, compact growth habit, V.sub.-resistance against scab, attractive red-purple flowers, greyed-purple young leaves, green mature leaves, and small, red colored, obloid shaped fruits that persist on the tree after the fall of leaves into Winter. The new variety is suitable for home apple growing as solitary trees and can be useful for pollinating purposes.

Claims

1. A new and distinct variety of Malus domestica (Borkh.) apple tree plant substantially as is herein described and illustrated.

Description

DESCRIPTION OF THE DRAWINGS

[0020] The accompanying photographic drawings illustrate the new cultivar with the color being as nearly true as possible with color illustrations of this type. It should be noted that colors may vary with growing conditions and time of year:

[0021] FIG. 1 illustrates a section of the vertical trunk of the new variety, showing details of its ornamental fruits;

[0022] FIG. 2 illustrates details of fruits of the new variety;

[0023] FIG. 3 illustrates a young tree of the new variety grafted on MM 106 rootstock, demonstrating that the fruits are persistent on the tree after its leaves fall into Winter;

[0024] FIG. 4 illustrates a young tree of the new variety grafted on MM 106 rootstock, at first flower opening;

[0025] FIG. 5 illustrates a section of the vertical trunk of the new variety, showing predominantly unopened flowers at the beginning of blossoming time;

[0026] FIG. 6 illustrates a young tree of the new variety grafted on MM 106 rootstock, with fully opened flowers;

[0027] FIG. 7 illustrates details of fully opened flowers of the new variety;

[0028] FIG. 8 illustrates a young tree of the new variety grafted on MM 106 rootstock, at the end of blossoming time;

[0029] FIG. 9 illustrates a growing shoot of the new variety; and

[0030] FIG. 10 illustrates a close-up view of a mature leaf and a young leaf of the new variety.

DESCRIPTION OF THE PLANT

[0031] The following detailed description sets forth characteristics of the new cultivar. The new variety was grown under natural field conditions in The Czech Republic. The following fertilizer combination was used (Kg/ha/year): 55 parts nitrogen, 25 parts phosphorous, 60 parts potassium, 55 parts calcium, and 5 parts magnesium. Color references are primarily to The R.H.S. Colour Chart of The Royal Horticultural Society of London and were identified under natural light. [0032] Tree: [0033] Age.Approximately 3 years. [0034] Size.Crown height of 1.6 m, width of 0.25 m. [0035] Vigor.Medium. [0036] Density.High. [0037] Form.Erect and compact. [0038] Production.Very precocious. [0039] Growth type.Columnar. [0040] Bearing.Annual; predominantly on spurs. [0041] Trunk.Size: Approximately 4.0 cm in diameter at 30.0 cm from the soil line. Surface texture: Smooth. Bark color: Greyed-Orange Group RHS 166A. Lenticels (50.0 cm above ground): Length: 1.0 mm to 2.0 mm. Width: 0.5 mm to 1.0 mm. Color: Greyed-Orange Group RHS 164C. Density: Variable, with 5 to 7 lenticels on average per 1 cm.sup.2. [0042] Branches.Not applicable absent. The variety lacks a conventional branching system along the tree trunk. [0043] Leaves.Length: About 60.0 mm to about 86.0 mm, averaging 69.0 mm. Width: About 38.0 mm to about 51.0 mm, averaging about 45.0 mm. Form: Ovate. Texture: Smooth. Thickness: Thin. Base: Rounded and asymmetric. Apex: Acuminate. Margin: Serrate Type 2 to biserrate. Pubescence: Upper surface: None present. Lower surface: Very fine. Color: Young leaves: Upper surface: Greyed-Purple Group RHS 183A. Lower surface: Greyed-Purple Group RHS 183D. Mature leaves: Upper surface: Green Group RHS 139A, combined with some Greyed-Purple Group RHS 187A. Lower surface: Green Group RHS 137C, combined with some Greyed-Purple Group RHS 185C. Petiole: Shape: Straight, with thickening and flattening at the base. Length: About 27.0 mm to 38.0 mm, averaging about 32.0 mm. Diameter: About 1.0 mm in the middle. Color: Red-Purple Group RHS 59A to 59B. Veins: Venation type: Palmate, medium dense. Color: Upper surface: Greyed-Purple Group RHS 186A. Lower surface: Greyed-Purple Group RHS 187A to 187B. [0044] Flower buds.Pedicel: Length: Typically in the range of 26.0 mm to 38.0 mm, with an average of 32.0 mm. Diameter: 1.1 mm on average. Color: Predominantly Red-Purple Group RHS 59A. Bud: Length: 14.0 mm on average. Width: 10.0 mm on average. Color: Predominantly Red-Purple Group RHS 59B to 59C. [0045] Flowers.Bloom timing: Early to medium. Blooming period: Medium. Pollination requirements: Self-sterile, needs pollinators. Number of flowers per cluster: 5 to 7. Fragrance: Faint. Petals: Number: 5. Length: From 22.0 mm to 28.0 mm, with an average of 25.0 mm. Width: From 20.0 mm to 24.0 mm, with an average of 21.0 mm. Shape: Round to slightly oval. Apex: Obtuse. Base: Mucronate. Aspect: Positioned overlapping. Margin: Entire. Texture and appearance: Soft and smooth. Color: When opening: Upper surface: Red-Purple Group RHS 63B. Lower surface: Red-Purple Group RHS 63B to 63C. Fully opened: Upper surface: Red-Purple Group RHS 62B. Lower surface: Red-Purple Group RHS 62C. Sepals: Shape: Long-conical; pointed. Margin: Entire. Texture: Finely pubescent (colorless). Length: Average of 7.0 mm from the union. Width: 3.0 mm in the middle. Color: Upper surface: Yellow-Green Group RHS 144B, with a Red-Purple Group RHS 59A apex. Lower surface: Red-Purple Group RHS 59B, with a with a Red-Purple Group RHS 59A apex. Stamens: Number (per flower): Average of 19. Filament length: 6.0 mm to 9.0 mm. Anthers: Shape: Oval. Length: 2.0 mm. Color: Yellow Group RHS 10C. Pollen: Color: Yellow Group RHS 10B. Amount (generally): Medium to high. Pistils: Length: 12.0 mm on average. Style: Length: 9.0 mm on average. Color: Red Group RHS 51C. Stigma: Shape: Rounded. Color: Red Group RHS 38A. [0046] Fruit.Data currently unavailable. [0047] Use.As an ornamental variety having a columnar tree growth type. [0048] Shipping quality.Not applicable ornamental variety. [0049] Keeping quality.Not applicable ornamental variety. [0050] Tree winter hardiness.No frost damage observed at the place of origin, lowest winter temperatures approximately 20 C. [0051] Bud winter hardiness.No frost damage observed at the place of origin, lowest winter temperatures approximately 20 C. [0052] Drought tolerance.Unknown. [0053] Disease resistance.V.sub.-resistance against scab.