<i>Citrus </i>tree named ‘Civac 19’

Abstract

A new and distinct variety of Citrus tree that can be used as a rootstock having a high fruit quality and a long harvest period.

Claims

1. A new and distinct variety of Citrus tree, as is herein illustrated and described.

Description

DESCRIPTION OF THE DRAWINGS

(1) With the exception of FIG. 6 (taken at approximately 3-4 months of age), the accompanying photographic images illustrate the new variety at approximately twenty years of age, with the colors being as nearly true as is possible with color illustrations of this type:

(2) FIG. 1 illustrates a fruiting tree of the new variety;

(3) FIG. 2 illustrates a fruiting tree of the new variety;

(4) FIG. 3 illustrates the fruits of the new variety;

(5) FIG. 4 illustrates the flowers of the new variety;

(6) FIG. 5 illustrates the seeds of the new variety; and

(7) FIG. 6 illustrates a nursery plant of the new variety.

DESCRIPTION OF THE PLANT

(8) The following detailed description sets forth the characteristics of the new variety. The color readings and measurements were taken in Valencia, Spain under natural light on approximately twenty year old plants grown in open field conditions. Color references are primarily to The 2007 R.H.S. Colour Chart of The Royal Horticultural Society of London, 5.sup.th Edition, except where general color terms are used.

PLANT

(9) Time to initiate roots: About 10 days in vitro. Time to develop roots: About 10 days in vitro. Rooting description: Rustic and thick. Overall tree shape: Upright. Height: 5 m. Spread: 3 m. Growth rate: Medium. Specific disease/pest resistance: Resistance to Citrus tristeza virus (CTV) and Phytophthora. Cold temperature tolerance: Observed. Heat tolerance: None observed. Drought tolerance: None observed. Trunk: Size.12 cm in diameter. Surface texture.Smooth. Bark color.195A. Lenticels.Length: 1.0 mm. Width: 0.5 mm. Color: 195D. Density: 0.5/cm.sup.2. Branches: Diameter.3.39+/0.43 mm. Surface texture.Smooth. Color.146A. Form.Elliptical. Average angle.70. Leaves: Length.64.76+/4.77 mm. Width.40.81+/6.55 mm. Form.Composed of three leaflets. Texture.Smooth upper surface, rough lower surface. Thickness.0.60+/0.10 mm. Base.Emargination at tip. Apex.Acute. Margin.Crenate incisions present. Pubescence.None present. Color.Young leaves: Upper surface: 144A. Lower surface: 144A. Mature leaves: Upper surface: 137A. Lower surface: 137C. Petiole.Shape: Wings absent. Length: 14.41+/1.29 mm. Width: 1.65+/0.24 mm. Color: 137A. Veins.Type: Pinnate. Upper surface color: 137A. Lower surface color: Medium green. Flower buds: Pedicel.Length: 5.17+/0.86 mm. Diameter: 0.95+/0.26 mm. Color: 144A. Bud.Length: 14.15+/1.60 mm. Width: 10.50+/0.86 mm. Color: 144A. Flowers: Bloom timing.March in Valencia, Spain. Blooming period.March to April in Valencia, Spain. Pollination requirements.None. Number of flowers per cluster.2 to 3. Fragrance.Orange blossom. Petals.Number: 5 per flower. Length: 16.10+/1.65 mm. Width: 7.03+/1.0 mm. Shape: Rounded. Aspect: Globose. Margin: Entire. Texture and appearance: Velvety. Color: When opening: Upper surface: 155A. Lower surface: 155A. Fully opened: Upper surface: NN155A. Lower surface: NN155A. Sepals.Shape: Acute. Margin: Smooth. Texture: Rough. Length: 3.88+/0.25 mm. Width: 2.36+/0.24 mm. Color: Upper surface: 154B. Lower surface: 154B. Reproductive organs: Stamen.Number (per flower): 25.6+/3.13 mm. Filament length: 7.30+/0.39 mm. Filament color: 1A. Anther.Shape: Basifixed. Length: 1.84+/0.13 mm. Color: 7A. Pollen.Color: 11A. Amount: Low. Pistil.Number (per flower): 1. Length: 7.39+/0.84 mm. Style.Length: 2.37+/0.18 mm. Color: 144D. Stigma.Shape: Capitate. Color: 154B. Ovary color: 144D. Fruit: Average maturity/harvest date.January to February in Valencia, Spain. Average amount of fruit produced per season per tree.50. Persistence of fruit on tree.High. Storage quality.Very good. Shipping quality.Very good. Use.For seeds only. Weight.Average: 69.25+/23.12 g. Minimum: 37.83 g. Maximum: 113.27 g. Shape.Overall: Slightly rounded. Apex: Without constriction at stalk end. Base: With presence of depression at distal end. Height.49.06+/6.67 mm. Width.55.31+/6.98 mm. Furrows.None present. Peduncle.Length: 6.61 mm. Width: 4.35 mm. Color: 144C. Rind.Surface texture: Rough, with no pubescence present. Color: N25B. Thickness: 4.36+/0.66 mm. Adherence to flesh: Medium adherence. Ease of peeling: High. Oil glands: Present. Scent: Citrus. Flesh/pulp.Number of segments: 9+/1. Separability of segments: High. Texture: Grainy. Vesicles: Average number per segment: 85. Shape: Cuneiform. Average length: 11.41+/2.05 mm. Average width: 3.08+/0.30 mm. Color: 21B. Scent: Citrus. Juice.Percentage amount per fruit: 18. Total soluble solids (degrees Brix): 12.3. Acidity (percentage): 5.2. Color: 16C. Scent: Citrus. Seeds.Average number per fruit: 20.8+/10.13 mm. Shape: Ovate. Length: 12.93+/0.5 mm. Width: 7.37+/0.52 mm. Color: 10D.