ORANGE PLANT NAMED 'ORANGE 14'

Abstract

A new and distinct cultivar of orange plant named Orange 14, an allotetraploid rootstock with improved disease resistance for use in HLB-endemic areas. This cultivar produces adequate nucellar seed making it amenable to standard nursery propagation practices for uniform liner production. Ungrafted seed trees are especially tolerant of HLB.

Claims

1. A new and distinct orange plant named Orange 14 as illustrated and described herein.

Description

DESCRIPTION OF THE FIGURES

[0013] This new sweet orange cultivar Orange 14 is illustrated by the accompanying photographs which show the tree's from, foliage and fruit. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. The photographs are of a tree approximately 6 years old.

[0014] FIG. 1 shows HLB-tolerant seed tree of the new cultivar Orange 14 planted in Lake Alfred, Florida;

[0015] FIG. 2 shows a seed tree of the new cultivar Orange 14 planted in Lake Alfred, Florida;

[0016] FIG. 3 shows seed fruit cluster in a seed tree of the new cultivar Orange 14;

[0017] FIG. 4 shows new leaf flush in a seed tree of the new cultivar Orange 14;

[0018] FIG. 5 shows leaf morphology of the new cultivar Orange 14;

[0019] FIG. 6 shows flower morphology of the new cultivar Orange 14;

[0020] FIG. 7 shows flower and fruit setting of the new cultivar Orange 14;

[0021] FIG. 8 shows flower size of the new cultivar Orange 14, with a ruler shown for size reference;

[0022] FIG. 9 shows a flower of the new cultivar Orange 14, showing dehiscing pollen with a ruler shown for size reference;

[0023] FIG. 10 shows a cut seed fruit of the new cultivar Orange 14;

[0024] FIG. 11 shows a cut seed fruit and extracted polyembryonic seed of the new cultivar Orange 14;

[0025] FIG. 12 shows typical polyembryonic seed of the new cultivar Orange 14;

[0026] FIG. 13 shows Valencia grown on Orange 14 rootstock in St. Cloud, Florida, planted between two Valencia/rough lemon trees;

[0027] FIG. 14 shows OLL-10 sweet orange grown on Orange 14 rootstock near Lake Alfred, Florida;

[0028] FIG. 15 shows OLL-8 sweet orange grown on Orange 14 rootstock, 3.5-year-old planted commercial grove with heavy Diaprepes/Phytophthora pressure; and

[0029] FIG. 16 is a graph showing mean yield and cumulative yield (boxes/tree) by rootstock across all scions (8 OLL clones), sorted by cumulative yield. Trees were planted in summer of 2013 in St. Cloud, Florida, and grown with no psyllid control.

DETAILED BOTANICAL DESCRIPTION OF THE CULTIVAR

Botanical Description

[0030] Botanical classification: [0031] Family.Rutaceae. [0032] Botanical name.Citrus sp. This new cultivar is a complex citrus hybrid containing Citrus grandis, Citrus paradisi, Citrus reticulata, and Citrus trifoliata. [0033] Common name.Tetrazyg rootstock. [0034] Cultivar.Orange 14. [0035] Parentage: The somatic hybrid seed parent is Nova mandarin hybrid+Hirado Buntan pummelo (zygotic seedling) and the somatic hybrid pollen parent is Cleopatra mandarin+Argentine trifoliate orange. [0036] Tree: [0037] Ploidy.Tetraploid. [0038] Size.Medium, moderate. [0039] Width across the row.3.5 meters on average. [0040] Width down row.3.5 to 4 meters on average. [0041] Tree Height.3.5 meters on average [0042] Tree spread.Up to 4.00 meter. [0043] Vigor.Moderate to vigorous [0044] Density.Canopies are quite dense. [0045] Tree shape (form).The shape of the tree is obloid with lateral branches. [0046] Tree diameter.4 meters on average. [0047] Growth habit (current season).Mostly lateral with some upright growth. [0048] Trunk: [0049] Trunk diameter.Approximately 10.5 cm in diameter at 30 cm above from ground in a 6-year-old tree. [0050] Trunk texture.Smooth. [0051] Trunk bark color.RHS N199A (Grey-Brown). [0052] Branches: [0053] Branch length.2.5 to 3 meters on average [0054] Crotch angle.Acute (less than 90 degrees). [0055] Branch texture.Relatively smooth with some thorns. [0056] Branch color.RHS 137A (Green Group) with some RHS 137B (Green Group). [0057] Spine size.10-20 mm on average. [0058] Spine color.RHS 137A (Green Group) with some RHS N199B (Greyed-Brown) based on the age of the branch [0059] Leaves: [0060] Size (lamina average): [0061] Length.90 mm on average. [0062] Width.50 mm on average [0063] L/W ratio.1.8. [0064] Thickness.Medium (approximately 0.23 mm). [0065] Type.The tree has three types of leaves.unifoliate, bifoliate and trifoliate. [0066] Shape.Elliptical. [0067] Apex.Retuse. [0068] Base.Acute. [0069] Margin.Dentate. [0070] Surface: [0071] Upper surface.Smooth. [0072] Lower surface.Smooth with the medium veins that are pinnately netted. [0073] Color: [0074] Upper surface (adaxial).RHS 137A (Green Group). [0075] Lower surface (abaxial).RHS 137B (Green Group). [0076] Petiole: [0077] Shape and attachment.Brevipetiolate (shorter than leaf lamina); junction between petiole and lamina is articulate. [0078] Width.Narrow. [0079] Shape (petiole wing).Obovate. [0080] Length.18 mm to 22 mm. [0081] Width.3 mm to 3.2 mm. [0082] Color.RHS 137A (Green). [0083] Flowers: [0084] Type.Hermaphrodite. [0085] Flowers bearing.Single or cluster. Branches have flowers grown in clusters. Each cluster consists of 2-5 flowers. Individual flowers grow from leaf terminals and leaf axillaries. [0086] Flower diameter.Fully open flower with average diameter of 25 mm to 35 mm. [0087] Flower depth.Typical flower with average depth of 20 mm. [0088] Flower blooming period: [0089] First bloom observed.Late February 2024. [0090] Full bloom observed.Mid-March 2024. [0091] Flower bud size: [0092] Length.Initial visible flower bud is approximately 2 mm in length; mature flower bud is approximately 20 mm in length. [0093] Diameter.Initial visible flower bud is approximately 2 mm in diameter; mature flower bud is approximately 5.5 mm in diameter [0094] Shape.Initial visible flower bud has a round ball shape; mature flower bud has an elongated olive shape. [0095] Color.RHS 144C (Yellow-Green) for initial visible flower bud; RHS NN 155A (White) for mature flower bud. [0096] Petals: [0097] Number.5 per flower. [0098] Shape.Flat spatula shaped. [0099] Length.22 mm on average. [0100] Width.6 mm on average. [0101] Apex shape.Smooth, acute shaped. [0102] Base shape.Even obtuse. [0103] Color.Upper surface is RHS NN 155A (White); lower surface is RHS NN 155C (White). [0104] Margin.Smooth. [0105] Sepal: [0106] Number.3-5 per flower. [0107] Shape.Delta shaped with acute angle at apex. [0108] Length.3 mm on average. [0109] Width.3.5 mm on average. [0110] Apex shape.Triangle shaped. [0111] Margin.Smooth. [0112] Color.RHS 1A (Green-Yellow). [0113] Fragrance.Moderately fragrant. [0114] Pedicel: [0115] Length.7 mm to 8 mm. [0116] Diameter.2 mm on average. [0117] Color.RHS 1B (Green-Yellow). [0118] Stamen: [0119] Number.22 per flower on average. [0120] Length.13 mm on average. [0121] Anther: [0122] Length.2.5 mm on average. [0123] Width.1.5 mm on average. [0124] Color.RHS 10A (Yellow). [0125] Pollen amount.Abundant. [0126] Pollen color (general).Bright yellow, RHS 17A (Yellow). [0127] Pistil: [0128] Number.1. [0129] Length.12.5 mm on average. [0130] Color.RHS 153B (Yellow-Green). [0131] Style length.9.5 mm on average. [0132] Style diameter.1 mm on average. [0133] Style color.RHS 144A (Yellow-Green). [0134] Ovary shape.Oval. [0135] Ovary diameter.2.5 mm on average. [0136] Ovary color.RHS N 144D (Yellow-Green). [0137] Fruit: [0138] Fruit parthenocarpy.Yes. [0139] Size: Uniform. [0140] Tall.75 mm to 82 mm on average. [0141] Diameter.75 mm on average. [0142] Average weight (per individual fruit).194.73 grams. [0143] Shape.Round. [0144] Shape (cross-section).Round. [0145] Apex.Truncated. [0146] Base.No neck, slightly rough peel surface. [0147] Harvest: [0148] First pick.Around September. [0149] Last pick.Around December. [0150] Fruit stem (short stem connecting the fruit): [0151] Length.8.5 mm on average. [0152] Diameter.3.5 mm on average. [0153] Color.RHS 198D (Greyed-Green). [0154] Rind: [0155] Adherence.Adherence between albedo (mesocarp) and flesh (endocarp) is medium. [0156] Thickness.4 mm on average. [0157] Texture.Firmed. [0158] Color: [0159] Flavedo (epicarp).RHS 163B (Greyed-Orange). [0160] Albedo (mesocarp).RHS NN 150B (White). [0161] Style end.Closed. [0162] Rind oil cell density.Approximately 180 cells/cm.sup.2. [0163] Flesh: [0164] Number of segments.10-12 segments per fruit. [0165] Segment walls.Medium. [0166] Juice.Abundant. [0167] Color.RHS 163C (Greyed-Orange) with some RHS 10A (Yellow Group). [0168] Texture.Soft. [0169] Vesicles: Medium thickness. [0170] Length.13 mm to 15 mm on average. [0171] Diameter.2.5 mm to 3 mm on average. [0172] Seeds: [0173] Type.Polyembryonic. [0174] Number.18 to 22 per fruit. [0175] Shape.Seed shapes are uniform, elongated oval shape. [0176] Size: [0177] Length.15 mm to 17 mm. [0178] Width.9 mm to 10 mm. [0179] Seed coat color.RHS 158B (Yellow-White). [0180] Outer Surface.RHS 161B (Greyed-Yellow). [0181] Inner surface.RHS 165C (Greyed-Orange). [0182] Cotyledon color.RHS 157D (Green-White).

Data:

TABLE-US-00001 TABLE 1 St. Cloud Demonstration Planting: 2018/2019 and 2019/2020 PS (lbs. solids)/tree and 2-year cumulative yield by rootstock for OLL-8 sweet orange. PS/Tree Rootstock 2018/2019 2019/2020 Cumulative Orange 14 13.1 17.0 30.1 UFR-5 (White 4) 17.1 12.9 30.1 UFR-1 (Orange 3) 13.2 12.3 25.6 UFR-2 (Orange 4) 11.4 13.9 25.4 Orange 16 13.3 11.2 24.5 White 1 11.6 11.1 22.7 UFR-4 (Orange 19) 8.6 11.6 20.1 UFR-6 9.6 8.3 17.9 (Chang + 50-7) x639 8.7 7.9 16.6 Carrizo 9.3 6.2 15.5 Orange 2 8.5 6.8 15.3 Swingle 6.9 8.2 15.1 Orange 13 6.7 6.0 12.6 White 3 5.1 7.5 12.6 UFR-3 (Orange 15) 5.9 6.6 12.4 UFR-17 (Green 2) 6.5 5.6 12.0 AMB + Carrizo 3.2 3.5 6.7 Green 7 3.5 N/A 3.5 Trees were planted in summer of 2013 in St. Cloud, Florida, and grown with no psyllid control.