LEMON PLANT NAMED 'CE-D5-1-9-42'

Abstract

A new and distinct cultivar of lemon plant named CE-D5-1-9-42, characterized by nearly seedless fruit, early fruiting, and high fruit production. Additionally, the new lemon cultivar also is compatible with trifoliate orange rootstocks, unlike most lemon varieties. This new cultivar has high quality fresh fruit, as well as juice, peel oil, and other lemon by-products viable for processing. Further, given the new lemon cultivar's good HLB tolerance typical of lemons, and its near seedlessness, this new cultivar may have significant dooryard tree potential.

Claims

1. A new and distinct lemon plant named CE-D5-1-9-42 as illustrated and described herein.

Description

DESCRIPTION OF THE FIGURES

[0012] The accompanying photographs (as shown in FIGS. 1-6B) illustrate the overall appearance of the new lemon cultivar CE-D5-1-9-42. These photographs show the colors as true as can be reasonably obtained in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description, which accurately describe the colors of the new lemon cultivar.

[0013] FIG. 1 shows a three-year-old tree of the new lemon cultivar CE-D5-1-9-42 growing on Flying Dragon rootstock in South America, with no HLB;

[0014] FIG. 2A shows a young tree of the new lemon cultivar bearing fruit of various sizes, growing in Florida in the spring season;

[0015] FIG. 2B shows the young tree of the new lemon cultivar of FIG. 2A, bearing fruit and newly opened flowers;

[0016] FIG. 2C shows clusters of fruit approaching maturity on a young potted tree of the new lemon cultivar;

[0017] FIG. 3A shows whole and cut mature fruit of the new lemon cultivar;

[0018] FIG. 3B shows whole and cut mature fruit of the new lemon cultivar;

[0019] FIG. 3C shows whole and cut mature fruit of the new lemon cultivar;

[0020] FIG. 3D shows whole and cut mature fruit of the new lemon cultivar;

[0021] FIG. 3E shows whole mature fruit of the new lemon cultivar;

[0022] FIG. 4A shows flower buds and flowers on a tree of the new lemon cultivar;

[0023] FIG. 4B shows flowers on a tree of the new lemon cultivar;

[0024] FIG. 4C shows flower buds on a tree of the new lemon cultivar;

[0025] FIG. 4D show flower buds and flowers on a tree of the new lemon cultivar;

[0026] FIG. 5A shows a flower and a flower bud of the new lemon cultivar alongside a ruler for measurement;

[0027] FIG. 5B shows flowers of the new lemon cultivar alongside a ruler for measurement;

[0028] FIG. 5C shows flowers of the new lemon cultivar alongside a ruler for measurement;

[0029] FIG. 5D shows flowers of the new lemon cultivar alongside a ruler for measurement;

[0030] FIG. 5E shows flowers of the new lemon cultivar alongside a ruler for measurement;

[0031] FIG. 5F shows flowers and flower buds of the new lemon cultivar in various stages of development alongside a ruler for measurement;

[0032] FIG. 5G shows flowers of the new lemon cultivar alongside a ruler for measurement;

[0033] FIG. 5H shows flowers of the new lemon cultivar with a ruler for measurement, with some petals and stamen having been removed from the flower shown on the righthand side of FIG. 5H to reveal the stigma, style, and ovary;

[0034] FIG. 5I shows a flower of the new lemon cultivar alongside a ruler for measurement;

[0035] FIG. 5J shows flowers of the new lemon cultivar alongside a ruler for measurement;

[0036] FIG. 6A shows fully expanded leaves of the new lemon cultivar alongside a ruler for measurement; and

[0037] FIG. 6B shows a fully expanded leaf of the new lemon cultivar alongside a ruler for measurement.

DETAILED BOTANICAL DESCRIPTION OF THE CULTIVAR

[0038] In the following description, color references are made to The Royal Horticultural Society (R.H.S.) Colour Chart, 1986 Edition, except where general terms of ordinary dictionary significance are used. [0039] Botanical description: [0040] Botanical classification.Family: Rutaceae. Botanical name: Citrus limon (L.) Burm. Common name: Lemon. Cultivar: CE-D5-1-9-42. [0041] Parentage.The new lemon variety CE-D5-1-9-42 arose as an irradiated budwood clone from Cook Eureka lemon. [0042] Tree.Ploidy: Diploid. Size: Medium compared to the tree age (young tree). Width across row: 1.5 meters on average. Width down row: 1.4 meters on average. Tree height: 2.1 meters on average. Tree canopy diameter: 1.7 meters on average. Vigor: Moderate. Density: Canopies are moderately dense. Tree shape (form): Oblate shape (obloid). Growth habit (current season): Vegetative growth in general is moderate to vigorous. [0043] Trunk.Trunk diameter: Approximately 4.5 cm at 30 cm above the ground. Trunk texture: Medium rough. Trunk bark color: RHS N200B (Brown Group). [0044] Branches.Branch length: 1.3 meters on average. Branch diameter: 1.8 cm on average. Crotch angel: 75-80 degrees on average (acute with an angle of less than 90 degrees). Branch texture: Relatively rough with long spines. Branch color: RHS 200D (Brown Group). Spine size: Approximately 3.5 cm in length and approximately 3.5 mm in diameter. Spine color: RHS N199A (greyed brown), with some being RHS 139B (green), depending on the branch age. [0045] Leaves.Size (lamina average): Length: 110 mm on average. Width: 65 mm on average. L/W ratio: 1.7 on average. Thickness: Regular and average for lemon. Type: Simple (unifoliate). Shape: Elliptical. Apex: Acute to acuminate. Base: Acute to obtuse. Margin: Entire to undulate. Surface: Upper surface: Smooth. Lower surface: Medium veins that are pinnately netted. Color: Upper surface (adaxial): RHS N 137B (Green Group). Lower surface (abaxial): RHS 143C (Green Group). Petiole: Shape and attachment: Brevipetiolate; shorter than the leaf lamina. The junction between the petiole and the lamina is articulate. Shape (petiole wing): Obovate with narrow end at the base. Length: 15 mm on average. Width: 2.5 mm on average. Color: RHS 137B (Yellow-Green Group). [0046] Flowers.Type: Perfect and staminate. Flower bearing: Single or cluster. If borne in clusters, each cluster consists of 2-5 flowers. If borne individually, individual flowers grow from leafy terminals and leaf axillaries. Flower diameter: Fully open flower has an average diameter of 32 mm. Flower depth: 15 mm on average. Flower blooming period: Trees have a major bloom season in central Florida that can begin in early January. However, trees will bloom sporadically throughout the year, depending on environmental influences (cold weather and drought will stimulate additional flowering). First bloom: January. Full bloom: February. Fragrance: Fragrant. Flower bud size: Length: Approximately 2 mm for the initial visible flower bud; approximately 22 mm for the mature flower buds before opening. Diameter: Approximately 2 mm in the initial visible flower bud; approximately 7 mm in the mature bud. Flower bud shape: Initial visible flower bud with round dome shape; mature flower bud with elongated olive shape. Flower bud color: RHS 186B (Greyed-Purple Group) for the initial visible flower bud; RHS 186D (Greyed-Purple Group) mixed with RHS NN 155B (white) for mature buds. [0047] Reproductive organs.Petals: Number: 5. Petal length: 25 mm on average. Petal width: 8 mm on average. Petal shape: Flat spatula shape. Apex shape: Smooth with obtuse angle. Base shape: Obtuse. Petal Color: Upper Surface: RHS 186D (Greyed-Purple Group) mixed with RHS NN 155B (white). Lower surface: RHS NN 155B (White Group). Margin: Smooth. Sepals: Number (per flower): 5.Shape: Delta shaped with acute angle at apex, although some with flat angle. Length: 4 mm on average. Width: 3 mm on average. Apex shape: Acute angle at apex. Margin: Smooth. Color: Upper surface: RHS 157B (green-white) with RHS 186D (Greyed-Purple Group) areas. Lower surface: RHS 157A (green-white). Pedicel: Length: 10 mm on average. Diameter: 2 mm on average. Color: RHS 144B (Yellow Group). Stamen: Number: 32 per flower on average. Length: 20 mm on average. [0048] Anther.Length: 4 mm on average. Width: 2 mm on average. Color: RHS 10A (yellow). Pollen color (general): RHS 11A (yellow). Pistil (in perfect flowers only): Number: 1. Length: 15 mm on average. Color: RHS 154D (yellow green). Style length: 16 mm on average. Style diameter: 2 mm on average. Style color: RHS 144A (yellow green). Ovary shape: Oval shape. Ovary diameter: 3 mm on average. Ovary color: RHS 142B (green). [0049] Fruit.Size: Not necessarily uniform. In general, it is elongated oval to oval shaped with a neck that varies in size. Average weight (per individual fruit): 97 grams on average. Length: 7 cm on average. Diameter: 6 cm on average. Shape: Oval to elongated oval with elongated tip. Shape (cross-section): Round. Apex: Prominently bulged, nipple-like shape on many fruit. Base: Short neck. Harvest: Date of first pick: Late May to late July from main bloom. Date of last pick: Can be harvested periodically throughout the year, depending on juice percentage, peel color, etc. Fruit stem: Length: 15 mm on average. Diameter: 4.5 mm on average. Color: RHS 146A (yellow green). [0050] Rind.Adherence: Albedo (mesocarp) to flesh (endocarp) is medium to strong. Thickness: Medium (4 mm on average). Texture: Firm with excellent flavor. Surface texture: Smooth to slightly bumpy. Color: Flavedo (epicarp): RHS 146B (Yellow-Green Group). Albedo (mesocarp): RHS NN155C (White Group). Style end: Closed. Rind oil cell density: 70-75 cell/square cm. Oil gland size: 1.5 mm on average. [0051] Flesh.Number of segments: 8-9.Segment length: 6.5 cm on average. Segment width: 2.5 cm on average. Juice: Abundant. Color: RHS 146C (yellow green). Texture: Soft to medium. Vesicles: Medium thickness. Length: 10 mm on average. Diameter: 2.5 mm on average. Juice quality: Brix: 6.8. Acidity (average): 4.2%. Ratio: 1.6. Juice color: 29. [0052] Seeds.Type: Seedless (observed seed count is 0-2 seeds per fruit, with the presence of seeds being rare). Seed shape, when found: Ovoid pointed. Fruit parthenocarpy: Yes.