Grapevine named ‘SV33-121-42’

Abstract

A new and distinct variety of grapevine plant named ‘SV33-121-42’ particularly characterized by its outstanding muscat flavor and bright red berries which ripen in early July in the McFarland, Calif. area.

Claims

1. A new and distinct variety of grapevine plant named ‘SV33-121-42’, substantially as illustrated and described herein.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) This new grapevine is illustrated by the accompanying photographs which show fruit clusters, leaves, canes, and tendrils. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. The photographs were taken from a plant about 5 years-old, grown in a field near McFarland, Calif. in 2020.

(2) FIG. 1 Vine with clusters treated with exogenous gibberellic acid and trunk girdling.

(3) FIG. 2 Fruit cluster natural (at left) and fruit cluster treated with gibberellic acid and trunk girdling (at right) with green shoot bearing leaves and tendrils.

DETAILED BOTANICAL DESCRIPTION

(4) The following detailed description sets forth the distinctive characteristics of grapevine ‘SV33-121-42’. Descriptions of the new invention apply to vines of grapevine ‘SV33-121-42’ grown on ‘Freedom’ (unpatented) rootstock at a density of 1,537 vines per hectare grown near McFarland, Calif. in 2021. These vines were in their fifth year of full production having been planted in 2016. These descriptions are believed to apply generally to the new variety grown under similar circumstances elsewhere. Variation due to soil and climatic conditions in other locations may be seen. References to color primarily correspond to The Royal Horticultural Society's Colour Chart, The Royal Horticultural Society, London, United Kingdom (copyright 2001). Descriptors used herein conform to those set forth by the International Board for Plant Genetic Resources Institute Grape Descriptors (Vitis spp.) of 1983 and/or 1997 which were developed in collaboration with the Office International de la Vigne et du Vin (OIV) and the International Union for the Protection of New Varieties of Plants (UPOV) and published in Descriptors for Grapevine (Vitis spp.) (Anonymous, International Plant Genetic Resources Institute, 1997, ISBN 92-9043-352-3). Classification: Family.—Vitaceae. Botanical name.—Vitis vinifera. Variety name.—‘SV33-121-42’. Plant: Vigor.—Vigorous: vines spur-pruned and shoot thinned to 32 shoots average 162 cm of growth per cane. Density of foliage.—Dense. Training method.—Spur pruned with 32 two bud shoots per vine. Productivity.—Moderate when spur pruned, up to 14,141 kg/hectare. Hardiness.—Hardiness observed to 0° C. when grown near McFarland, Calif. in USDA hardiness zone 9A. Rootstock.—‘Freedom’ (unpatented). Trunk: Shape.—Broadly elliptical. Straps.—Long, split. Surface texture.—Shaggy. Trunk circumference.—27.1 cm at 1.0 m of height. Inner bark color.—Greyed orange group 177C. Outer bark color.—Brown group N200B. Mature leaves: Average blade length.—17.4 cm. Average blade width.—15.7 cm. Size of blade.—Large. Shape.—Pentagonal. Number of lobes.—5. Anthocyanin coloration of main veins on the upper side of the blade.—Absent. Mature leaf profile.—Cupped upwards around entire margin. Blistering (upper surface).—Absent. Leaf blade tip.—Curved upward. Margins.—Lobed, serrated, undulating. Apex.—Broadly acuminate. Bases.—Sagittate. Thickness.—Medium. Undulation of blade between main and lateral veins.—Slight. Shape of teeth.—Broadly conical, both sides convex. Length of teeth.—7.5 mm. Ratio length/width of teeth.—About 1:1. General shape of petiole sinus.—Half open. Tooth at petiole sinus.—Absent. Petiole sinus limited by veins.—Absent. Prostrate hairs between veins (lower surface).—Absent. Erect hairs between veins (lower surface).—Absent. Prostrate hairs on main veins (lower surface).—Present. Density of erect hairs on main veins (lower surface).—Sparse. Prostrate hairs on main veins (upper surface).—Present though very sparse. Upper surface.—Summer color: Yellow green group 146A. Surface texture: Smooth. Surface appearance: Dull. Goffering of blade: Absent. Lower surface.—Summer color: Yellow green group 146B. Anthocyanin coloration of main veins on lower leaf surface: Absent. Anthocyanin coloration on laterals: Absent. Glossiness: Low. Pubescence: Absent. Surface texture: Rough. Surface appearance: Dull. Petiole.—Length: 12.0 cm. Length of petiole compared to middle vein: Slightly longer. Density of prostrate hairs: Very sparse; limited to junction of petiole and blade. Density of erect hairs: Moderate; limited to the junction of petiole and blade. Shape of base of petiole sinus: Ovate. Color: In shade: Yellow green group 145A with streaks of Red purple group 60D. In sun: Red purple group 59D with some Yellow green group 144C. Tendrils: Number.—Bifurcated and trifurcated; forming irregularly at nodes above node 5. Length.—19.1 cm. Diameter.—3 mm. Texture.—Smooth. Color.—Yellow green group N144C, with streaks of Red purple group 61A. Growing tips (young shoot): Pubescence.—Abundant, prostrate. Color.—RHS 144C (yellow green group). Anthocyanins.—Absent. Shape.—Rounded. Apex.—Fully open. Shoot attitude.—Semi-erect. Green summer shoots: Internode color upper surface.—Yellow green group 144B. Internode color lower surface.—Yellow green group 144A. Node color upper surface.—Yellow green group 144B. Node color lower surface.—Yellow green group 144B. Density of erect hairs on internodes.—Absent. Woody shoot: Canes.—Shape, cross section: Elliptic Internode length: 11.4 cm. Width at node: 10.2 mm. Cross section at node: Elliptic. Surface: Smooth. Main color: Greyed orange group 167A. Lenticels: Inconspicuous. Buds.—Shape: Conical. Cane bud fruitfulness: Fruitful from 2 basal buds 1 and 2. Length: 7 mm. Width: 6 mm. Height: 6 mm. Color: Greyed orange group 175A. Texture: Smooth. Flowers: Flower sex.—Hermaphrodite. Position of first flowering nodes.—Third or fourth. Number of inflorescences per shoot.—2. Flower cluster width.—4.9 cm. Flower cluster length (including peduncle).—20.9 cm. Cluster stem color.—Yellow green group 144A. Calyptra color.—Yellow green group 144A. Ovary length.—3 mm. Ovary width.—1 mm. Ovary color.—Yellow green group 144B. Filament length.—2 mm. Filament color.—Translucent, absence of pigmentation. Anther length.—1 mm. Anther color.—Yellow group 8B. Date of full bloom.—May 8th. Fruit: Ripening period.—Early summer in McFarland, Calif. Date of first harvest.—July 8.sup.th, McFarland, Calif. Use.—Fresh market. Keeping quality.—Very good. Shipping quality.—Good. Solids-sugar.—18.5 brix at full maturity. Refractometer test.—18.5 brix. Titratable acidity of juice.—0.59. PH of juice.—3.55. Bunch.—Size: Small. Length (peduncle excluded): About 18.5 cm. Width: About 11.4 cm. Weight: Natural, without gibberellic acid treatment: 295 g. With gibberellic acid treatment: 290 g. Density: Well-filled to compact. Number of berries per cluster: 82.4 Form: Pyramidal. Peduncle.—Length: About 6.0 cm. Lignification: Peduncle not lignified at maturity. Color: Yellow green group 114B. Berry.—Size: Small. Uniformity of size: Uniform. Weight: Natural, without gibberellic acid treatment: 3.3 g. With gibberellic acid treatment: 3.5 g. Shape: Natural, without gibberellic acid treatment: Elliptic. With gibberellic acid treatment: Elliptic. Presence of seeds: Seedless; most berries develop one or two small, soft. rudimentary seeds 0.5 mm in length. Cross section: Circular. Dimensions: Longitudinal axis: 2.3 cm. Horizontal axis: 1.9 cm. Skin color (without bloom): Red group 53A. Coloration of flesh: Translucent; no pigment. Juiciness of flesh: Juicy. Berry firmness: Very firm. Particular flavor: Distinct muscat flavor. Bloom (cuticular wax): Medium. Pedicel length: 1.3 cm. Berry separation from pedicel: Moderately easy. Skin.—Thickness: Medium. Texture: Crisp. Reticulation: Absent. Roughness: Smooth. Tenacity: Tenacious to flesh. Tendency to crack: Resistant. Disease and insect resistance: No particular resistance or susceptibility has been observed to pests of roots, shoots, leaves or fruit. Normal disease control practices typically used under central California conditions may be used.