Lemon tree named ‘PLBA1’
The 'PLBA1' lemon tree variety, derived from a spontaneous mutation of 'Eureka', addresses the need for a distinct lemon tree with yellowish-pink fleshed fruit by maintaining its unique traits and offering good keeping quality and market use through grafting propagation.
Patent Information
- Application Number
- US18/435352
- Authority / Receiving Office
- US · United States
- Patent Type
- Patents(United States)
- Current Assignee / Owner
- Filing Date
- 2024-02-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2044-02-07
AI Technical Summary
There is a need for a distinct and stable lemon tree variety that exhibits unique characteristics such as yellowish-pink fleshed fruit, which differs from existing 'Eureka' and '7ELS1' varieties, and can be easily propagated while maintaining its traits.
A new lemon tree variety 'PLBA1' originating from a spontaneous mutation of 'Eureka' lemon tree, which has been propagated by grafting and exhibits medium vigor, spreading habit, and specific botanical features like smooth grey-brown bark and yellowish-pink fleshed fruit, grown on Citrus macrophylla rootstock.
The 'PLBA1' lemon tree maintains its distinctive characteristics through successive generations, offering a stable and distinguishable fruit profile with good keeping quality and market use for fresh consumption.
Smart Images
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Abstract
Description
[0001] Latin name: Citrus limon.
[0002] Variety denomination: ‘PLBA1’.BACKGROUND AND SUMMARY OF THE VARIETY
[0003] ‘PLBA1’ is a new lemon tree that originated as a spontaneous mutation of a ‘Eureka’ lemon tree (not patented). The mutation was discovered in a cultivated ‘Eureka’ orchard at Eus, Pyrénées-Orientales, France in 2005, when fruit was observed by the inventor to have light, yellowish-pink pigmented flesh. The ‘PLBA1’ lemon tree was first propagated by grafting at Eus in 2005, and has been found to exhibit its distinctive characteristics and remain stable through successive asexually propagated generations.
[0004] The seeded yellowish-pink-fleshed fruit of the ‘PLBA1’ lemon tree is easily distinguished from the seeded yellow-fleshed fruit of parent tree ‘Eureka’, and from the seedless yellow-fleshed fruit of similar lemon tree variety ‘7ELS1’ (U.S. Plant Pat. No. 24,608).BRIEF DESCRIPTION OF THE PHOTOGRAPHS
[0005] The accompanying photographs, taken in 2021 at Visalia, California, show 2-year-old trees grown on Citrus macrophylla rootstock (not patented).
[0006] FIG. 1 shows a ‘PLBA1’ lemon tree;
[0007] FIG. 2 shows whole fruit and leaves of a ‘PLBA1’ lemon tree;
[0008] FIG. 3 shows a sectioned fruit and leaves of a ‘PLBA1’ lemon tree;
[0009] FIG. 4 shows dissected blossoms from a ‘PLBA1’ lemon tree; and,
[0010] FIG. 5 shows a blossom on a ‘PLBA1’ lemon tree.
[0011] Because lighting conditions can affect the colors shown in photographic illustrations, color characteristics of the claimed variety should be determined with reference to the observations described herein, rather than from the illustrations alone.DETAILED BOTANICAL DESCRIPTION
[0012] The following detailed botanical description is based on observations recorded in 2021 at Visalia, California, of 2-year-old trees grown on Citrus macrophylla rootstock. The characteristics 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 plants of the new variety. The measurements of any individual plant, or any group of plants, of the new variety may vary from the stated average. Colors are described with reference to The R.H.S. Colour Chart (Royal Horticultural Society, 6th ed.).
[0013] Tree:
[0014] Vigor.—Medium.
[0015] Density of canopy.—Medium.
[0016] Habit.—Spreading.
[0017] Height.—2.4 m.
[0018] Spread.—1.8 m.
[0019] Trunk diameter (at 30 cm above graft).—4.3 cm.
[0020] Bark texture.—Smooth.
[0021] Bark color.—Grey-brown 199D.
[0022] Tendency toward alternate bearing.—None.
[0023] Chilling requirement.—None.
[0024] Branch (fruiting branch located about 1 m above graft union):
[0025] Length.—120 cm.
[0026] Diameter.—2.8 cm.
[0027] Crotch angle.—Medium.
[0028] Bark color.—Older growth grey-brown 199B with green 143A.
[0029] Bark texture.—Smooth.
[0030] Thorns.—Few.
[0031] Thorn length.—1.8 cm.
[0032] Current year shoot length.—91 cm to 97 cm.
[0033] Current year shoot color.—Yellow-green 144A.
[0034] Flowers:
[0035] Bud shape.—Oblong.
[0036] Bud length.—16 mm.
[0037] Bud diameter.—8 mm.
[0038] Bud color.—Green-white 157A with red-purple 64B at base.
[0039] Quantity of blossoms per cluster.—3 to 10.
[0040] Blossom diameter.—35 mm.
[0041] Blossom depth.—22 mm.
[0042] Pollen color.—Yellow 7A.
[0043] Sepal length.—6 mm.
[0044] Sepal width.—4 mm.
[0045] Sepal shape.—Fused, acuminate tip.
[0046] Sepal margin.—Entire.
[0047] Sepal color-upper surface.—Yellow-green 145C with red-purple 64B tips.
[0048] Sepal color-lower surface.—Yellow-green 145C.
[0049] Quantity of petals per flower.—5.
[0050] Petal shape.—Oblong.
[0051] Petal apex.—Mucronate.
[0052] Petal margin.—Entire.
[0053] Relative position of petal margins.—Separate, not overlapping.
[0054] Petal length.—21 mm.
[0055] Petal width.—7 mm.
[0056] Petal color-upper surface.—White N155A.
[0057] Petal color-lower surface.—White N155A with some red hue.
[0058] Bloom date.—Multiple; main bloom is March and April.
[0059] Date of first fruitlet fall.—Drop from main bloom occurs in May.
[0060] Pedicel length.—7 mm.
[0061] Pedicel diameter.—3 mm.
[0062] Pedicel color.—Yellow-green 145C.
[0063] Pistil quantity per flower.—1.
[0064] Pistil length.—15 mm.
[0065] Pistil color.—Yellow 10C to yellow 10D.
[0066] Anther quantity per flower.—25 to 30.
[0067] Anther length.—2.4 mm.
[0068] Anther color.—Yellow-orange 14C.
[0069] Stigma length.—2 mm to 3 mm.
[0070] Stigma color.—Yellow 10C.
[0071] Style length.—8 mm.
[0072] Style color.—Yellow 10D.
[0073] Ovary length.—5 mm.
[0074] Ovary diameter.—3 mm.
[0075] Ovary color.—Yellow-green 144C.
[0076] Leaves:
[0077] Length.—11.4 cm.
[0078] Width.—5.9 cm.
[0079] Length / width ratio.—1.9:1.
[0080] Blade margin.—Entire, slightly crenate.
[0081] Leaf shape.—Lanceolate.
[0082] Apex shape.—Acute.
[0083] Base shape.—Aequilateral to cuneate.
[0084] Color of upper surface.—Green NN137A.
[0085] Color of lower surface.—Green 143B.
[0086] Leaf texture (upper surface).—Glabrous.
[0087] Petiole length.—10 mm.
[0088] Petiole diameter.—2.3 mm.
[0089] Petiole color.—Yellow-green N144A.
[0090] Wings.—None.
[0091] Fruit:
[0092] Quantity per cluster.—1 to 3.
[0093] Axial diameter.—6.4 cm.
[0094] Apical diameter.—8.3 cm.
[0095] Weight.—154 g.
[0096] General shape in profile.—Ellipsoid.
[0097] Navel.—None.
[0098] Rind color.—Yellow 9A.
[0099] Rind color pattern.—Solid.
[0100] Oil glands per cm2.—About 35.
[0101] Oil gland diameter.—0.5 mm.
[0102] Rind thickness.—5 mm including albedo.
[0103] Rind texture.—Puncticulate.
[0104] Albedo thickness.—2 mm to 3 mm.
[0105] Quantity of fruit segments per fruit.—9 to 10.
[0106] Juice sac length.—1.6 mm.
[0107] Juice sac shape.—Variable, mostly elongate.
[0108] Juice sac length to width ratio.—1.6:1.
[0109] Juice sac color.—Red 36A (light yellowish pink).
[0110] Juice soluble solids (°brix).—6.0 to 6.5.
[0111] Harvest window.—Multiple sets; Main crop is November through February.
[0112] Quantity of seeds per fruit.—0 to 3.
[0113] Seed length.—8.5 mm.
[0114] Seed diameter.—5 mm.
[0115] Seed color.—Greyed-yellow 160C.
[0116] Stem length.—20 mm.
[0117] Stem diameter.—5 mm.
[0118] Stem color.—Yellow-green N144C.
[0119] Diseases and pests: No distinguishing resistance or susceptibility noted.
[0120] Market use: Fresh.
[0121] Keeping quality: Good.
Claims
1. A new and distinct lemon tree named ‘PLBA1’ substantially as illustrated and described herein.