Apple tree named 'UEB 42721'

Abstract

A new and distinct Malus domestica (Borkh.) ornamental variety that exhibits a columnar tree growth type, very narrow growth habit that is generally free of side branches, V.sub.f-resistance against scab, attractive red-purple flowers, greyed-purple young leaves, and small, red to red-purple colored, broadly globose shaped fruits that persist on the tree after the fall of leaves until the end of 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, demonstrating that the fruits are persistent on the tree after its leaves fall until the end of 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 tree of the new variety grafted on MM 106 rootstock, showing its canopy form with fully opened flowers;

[0027] FIG. 7 illustrates a young, flowering tree grafted on MM 106 rootstock; and

[0028] FIG. 8 illustrates details of fully opened flowers of the new variety.

DESCRIPTION OF THE PLANT

[0029] 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. [0030] Tree: [0031] Age.Approximately 4 years. [0032] Size.Crown height of 2.0 m, width of 0.25 m. [0033] Vigor.Weak to medium. [0034] Density.Compact and only vertical. [0035] Form.Erect, compact, and free of side branches. [0036] Production.Very precocious. [0037] Growth type.Columnar. [0038] Bearing.Annual; predominantly on spurs. [0039] Trunk.Size: Approximately 4.5 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 164B. Density: Variable, with 5 to 8 lenticels on average per 1 cm.sup.2. [0040] Branches.Not applicable absent. The variety lacks a conventional branching system along the tree trunk. [0041] Leaves.Data currently unavailable. [0042] Flower buds.Pedicel: Length: Typically in the range of 13.0 mm to 22.0 mm, with an average of 15.0 mm. Diameter: 1.0 mm on average. Color: Predominantly Red-Purple Group RHS 59A. Bud: Length: 1.0 mm on average. Width: 10.0 mm on average. Color: Predominantly Red-Purple Group RHS 59B to 59C. [0043] Flowers.Bloom timing: Medium. Blooming period: Medium to long. Pollination requirements: Self-sterile, needs pollinators. Number of flowers per cluster: 5 to 7. Fragrance: Faint. Petals: Number: 5. Length: From. 20.0 mm to 26.0 mm, with an average of 22.0 mm. Width: From 13.0 mm to 16.0 mm, with an average of 15.0 mm. Shape: Oval. Apex: Obtuse. Base: Mucronate. Aspect: Positioned overlapping to touching. Margin: Entire. Texture and appearance: Soft, slightly rumpled, and smooth. Color: When opening: Upper surface: Red-Purple Group RHS 64B. Lower surface: Red-Purple Group RHS 64B. Fully opened: Upper surface: Red-Purple Group RHS 60C to 60D. Lower surface: Red-Purple Group RHS 60C to 60D. Sepals: Shape: Long-conical; pointed. Margin: Entire. Texture: Finely pubescent. Length: 7.0 mm to 9.0 mm, average of 8.0 mm from the union. Width: 3.0 mm in the middle. Color: Upper surface: Green Group RHS 138B, with a Red-Purple Group RHS 59A apex. Lower surface: Red-Purple Group RHS 59A. Stamens: Number (per flower): Average of 19. Filament length: 7.0 mm to 11.0 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: 11.0 mm on average. Style: Length: 9.0 mm on average. Color: Red Group RHS 51C. Stigma: Shape: Rounded at the top. Color: Yellow-Green Group RHS 151B. [0044] Fruit.Data currently unavailable. [0045] Use.As an ornamental variety having a columnar tree growth type. [0046] Shipping quality.Not applicable ornamental variety. [0047] Keeping quality.Not applicable ornamental variety. [0048] Tree winter hardiness.No frost damage observed at the place of origin, lowest winter temperatures approximately 20 C. [0049] Bud winter hardiness.No frost damage observed at the place of origin, lowest winter temperatures approximately 20 C. [0050] Drought tolerance.Unknown. [0051] Disease resistance.V.sub.f-resistance against scab.