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Cherry tree named `Korvik`
PP22245 Cherry tree named `Korvik`
Patent Drawings:Drawing: PP22245-3    Drawing: PP22245-4    
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(2 images)

Inventor: Ludvik
Date Issued: November 15, 2011
Application: 12/460,904
Filed: July 23, 2009
Inventors: Ludvik; Vaclav (Horice, CZ)
Primary Examiner: Bell; Kent L
Assistant Examiner:
Attorney Or Agent: Ballew Law
U.S. Class: PLT/181
Field Of Search: PLT/181
International Class: A01H 5/00
U.S Patent Documents:
Foreign Patent Documents:
Other References: GTITM UPOVROM Citation for `Korvik` as per CZ PBR application filing No. 1327; Dec. 20, 2001. cited by examiner.
GTITM UPOVROM Citation for `Korvik` as per CZ NLI application filing No. 6558; Dec. 20, 2001. cited by examiner.

Abstract: `Korvik` is a new and distinct cherry variety (Prunus avium) notable for its round shape and resistance to cracking. `Korvik` is further notable for its productivity on dwarfing rootstocks, and tolerance to Monilia disease ("brown rot").
Claim: I claim:

1. A new and distinct cherry tree substantially as shown and described herein.
Description: Latin name of the genus and species of theplant claimed: Prunus avium.

Variety denomination: `Korvik`.




`Korvik` originated in 1973 as a result of a controlled cross of `Kordia` (female parent) and `Vic` (male parent) cherry trees. Asexual propagation by budding was first carried out in 1975 in East Bohemia, Czech Republic. The variety has sincebeen observed over a number of asexually propagated generations, and has been found to remain true to type.

`Korvik` is a new and distinct cherry variety notable for its round shape and resistance to cracking. `Korvik` is further notable for its productivity on dwarfing rootstocks, and tolerance to Monilia disease ("brown rot"). `Korvik` is moreupright than its parent `Kordia` which is more spreading and has less number of lenticels on the tree stem than its parent `Vic`. The duration of the flowering of `Korvic` is 1-2 days longer than its parent `Vic`. In addition, `Korvik` differs fromparental varieties by leaf shape. The leaf margin of `Korvik` is obtuse serrate, whereas the leaf margin of its parent, `Kordia`, is acute serrate.


FIG. 1 shows the fruit and leaves of `Korvik`; and

FIG. 2 shows the fruit of `Korvik`.


The following detailed botanical description is based on observations of `Korvik` cherry trees grown at East Bohemia, Czech Republic. Color descriptions refer to The Royal Horticultural Society Colour Chart. It should be understood that thecharacteristics described will vary somewhat depending upon cultural practices and climatic conditions, and can vary with location and season. Quantified measurements are expressed as an average of measurements taken from a number of individual plantsof the new variety. The measurements of any individual tree, or any group of trees, of the new variety may vary from the stated average. Tree: Size.--Height: 3.9 m; Diameter 2.2 m. Form.--Conical. Vigor.--Medium. Hardiness.--High. Trunk.--Diameter:96 mm at 0.5 m above ground; Texture: Medium smooth; Lenticels: very few in number; Color: greyed orange 165B. Branches.--Scaffold branch length: 0.8 m; Diameter: 24 mm; Texture: smooth; Color: brown 200B; Number of lenticels per cm.sup.2: 4-5; Lenticellength: 2-3 mm; Lenticel diameter: 1 mm; Lenticel color greyed orange 165B; Fruiting branch length: 0.6 m; Diameter: 8.5 mm; Texture: smooth; Color: brown 200B; Number of lenticels per cm.sup.2: 7; Lenticel length: 1 mm; Lenticel diameter: 0.5 mm;Lenticel color: greyed orange 165B; Current season branch length: 0.6 m; Texture: smooth; Color: greyed orange 177B; Number of lenticels per cm.sup.2: 6; Lenticel length: 0.3 mm; Lenticel diameter 0.3 mm; Lenticel color: greyed orange 175B. Leaf:Size.--Length: 105 mm; Width: 62 mm. Shape.--Oval; Apex: pointed; Base: obtuse. Margin.--Obtuse serrate. Texture.--Upper surface: glossy; Lower surface: dull with marked veining. Color.--Upper surface: green 136B; Lower surface: green 137C. Petiole.--Length: 22 mm; Diameter: 0.4 mm; Color: greyed purple 183B. Leaf glands: Size.--Length: 1 mm; Width: 0 8 mm. Shape.--Oval. Number per leaf.--1-2. Location.--Mostly on the petiole, upper position. Color.--Greyed purple 183A. Flower buds:Size.--Length: 6.5 mm; Diameter: 3.2 mm. Shape.--Conical. Number on each fruiting spur.--2.5. Color.--Greyed purple 166A. Blooming period.--14 days. Date of full bloom.--Medium late (April 22). Flowers: Petal size.--Length: 15 mm; Width: 12 mm. Petal number.--5 per flower. Petal shape.--Oval; Apex: rounded; Base: slightly pointed. Petal margin.--Smooth. Petal texture.--Upper surface: slight venous; Lower surface: nearly smooth. Petal color.--Upper surface: white N155A; Lower surface:red-purple 69C. Sepals: Size.--Length: 6 mm; Diameter: 4 mm. Number.--5. Shape.--Widely conical; Apex: pointed. Margin.--Smooth. Texture.--Upper surface: dull smooth; Lower surface: glossy smooth. Color.--Upper surface: Yellow green 147B; Lowersurface: green 138B. Peduncle length.--36 mm; Diameter: 1 mm; Color: green 137B. Reproductive characteristics: Nectary color.--Yellow 2C. Stamen number.--16. Filament color.--Red-purple 69C. Anther shape.--Round to oval. Anther size.--Length: 0.5mm; Diameter: 0.5 mm. Anther color.--Yellow orange 14A. Pollen amount.--Medium. Pollen color.--Yellow orange 14A. Carpel style length.--12 mm. Carpel style color.--Yellow green 145D. Style color.--Yellow green 145C. Stigma shape.--Oval. Stigmadiameter.--0.6 mm. Stigma color.--Yellow green 145B. Fruit: Size.--Large; Height: 27.2 mm; Suture diameter: 28.3 mm; Apex diameter: 22.7 mm; Stem cavity: Medium, Depth: 2-2.5 mm, Breadth 10-11 mm; Peduncle: Length 48-55 mm, diameter 1.3-1.5 mm, Color:Green 146C; Quantity of fruit per cluster: 2-4. Fruit shape.--Round; Base shape: Round to oval. Skin.--Color: Greyed purple 187B; Thickness: Medium, limited tendency to cracking. Flesh.--Color Greyed purple 187D; Flesh Texture: Above mean 6 (if therating scale from 1 worst to 9 best is used); Flesh Fiber: Medium; Flavor: Medium, slightly acidulated sweet; Aroma: Good; Eating quality: Good; Brix: Varies from to Stone.--Size: Length 12.5 mm, Width 10.5 mm at its widestpoint near the center; Form: Oblong; Sides: Ridges 4-6 with varying amounts of encircling the sutures of the pit; No tendency to pit cracking; Color Orange white 159A; Kernal size; Length 8.9 mm, Width at widest point: 5.6 mm; Kernel color: Orange 22A. Firmness.--Medium; It was measured by Durofel DTT 100 Agrotechnologie SA-Licence CTIFL (Digital Firmness Tester France); Its scale values ranged from 0-99 where 85=4.5 kg/0.5 cm.sup.2 of penetrometer measurement; Mean value of `Korvik` was 69. Fruitweight.--2nd Year after planting: 0.25 kg; 3.sup.rd Year after planting 1 kg; Year after planning: 5 kg. Time of ripening.--Late. Harvest.--Started on July in 2010 in East Bohemia, Czech Republic. Orchard performance: Diseaseresistance/tolerance.--Tolerant to Monilia and Blumeriella jaapii infection. Yield.--Very good yields on dwarf rootstocks.

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