USPP34045P2

USPP34045P2 - Seedless grapevine named ‘ARDTHIRTYSIX’

Info

Publication number: USPP34045P2
Application number: US17/300,597
Authority: US
Inventors: Shachar Karniel
Original assignee: Agricultural Research and Development LLC
Current assignee: GRAPA GLOBAL LLC
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-22
Anticipated expiration: 2041-08-30

Abstract

A new distinct variety of grapevine named ‘ARDTHIRTYSIX’ abundantly forms attractive crunchy seedless berries with a red skin coloration; medium density in medium clusters which display a naturally sweet flavor, the fruit is commonly ready for harvesting during August-September in San Joaquin Valley of Central California, U.S.A., and displays good eating qualities as a table grape. The fruit firmness renders the fruit well amenable for handling, shipping, and storage.

Description

Classification: The present invention relates to a new Vitis vinifera Grapevine.

Variety denomination: The new Grapevine has a varietal denomination ‘ARDTHIRTYSIX’.

BACKGROUND OF THE INVENTION

A breeding program was initiated during the late 1990's near Bakersfield in San Joaquin Valley of Central California. In 2013, during this breeding program, a new variety of Vitis vinifera was created by deliberate cross breeding of two parent plants by emasculation of the pollen bearing organ of the female and introducing pollen from another male origin. The female parent of the new variety was 10−10+2, which is a very fertile and crispy seedless white table grape variety (non-patented in the United States). The male parent (i.e. the pollen parent) of the new variety was 8−7+7, a meaty and juicy red variety with a natural flavor (non-patented in the United States).

TABLE 1

ARDTHIRTYSIX compared with parents & closely related
variety:

				Scarlet Royal
		10 − 10 + 2	8 − 7 + 7	(U.S. Plant
	ARDTHIRTYSIX	(Maternal)	(Paternal)	Pat. No. 16,229)

Berry	Narrow	Cylindrical	Broad	Oval
shape	ellipsoid		ellipsoid
Brix	25	18	18	17
Berry	Thin	Medium	Thin	Medium - thick
skin

The parentage of the new variety can be summarized as follows: 10−10+2×8−7+7

An artificial pollination was created, and the result was an embryo which possessed unique genetic qualities. The rudiments resulting from the above pollination were embryo rescued.

In 2014 the plant was transplanted to Bakersfield in San Joaquin Valley of Central California.

It was found that the new grapevine of the present invention possesses the following combination of characteristics:

- (a) Forms attractive crunchy seedless berries with a red skin coloration; medium density in medium clusters which display a naturally sweet flavor,
- (b) Commonly bears fruit during the month of August-September in the San Joaquin Valley of Central California, U.S.A.,
- (c) Bears fruit that is firm and is well amenable for storage, handling, and shipping, and
- (d) Produces 51 bunches per vine, and an average of about 2 bunches per shoot, at a total of 54 lbs fruit per vine.

The new variety during observation to date has displayed no visible disease, and has displayed an ability to well resist cold, drought, heat; but sensitive to direct exposure to sun and wind. The fruit of the new variety has been found to display excellent handling and shipping qualities combined with desirable dessert eating qualities.

The new variety of the present invention has been found to undergo asexual propagation beginning in 2015 near Bakersfield in the San Joaquin Valley of Central California, U.S.A. by bud grafting on mature Thompson rootstock (non-patented in the United States). Such asexual propagation has been conducted thereafter in successive years to date and has shown that the characteristics of the new variety are strictly transmissible from one generation to another. Accordingly, the new variety undergoes asexual propagation in a true to type manner.

SUMMARY OF THE INVENTION

The new variety ARDTHIRTYSIX is a red seedless table grape with a high production, e.g., about 51 bunches per vine, and an average of about 2 bunches per shoot.

Asexual reproduction by micro propagation of the new variety as performed near Bakersfield, Calif., U.S.A., shows that the forgoing and other distinguishing characteristics come true to form and are established and transmitted through succeeding propagations.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying photographic illustration shows typical six-year-old specimens of the new variety, vegetatively propagated, in color as nearly true as it is reasonably possible to make in a color illustration of this character. Colors in the photograph may differ from the color values cited in the detailed botanical description below, which accurately describes the colors of the new Grapevine.

The drawing shows leaves, stems and grapes of ARDTHIRTYSIX.

DETAILED BOTANICAL DESCRIPTION

The chart used in the identification of colors is The R.H.S. Colour Chart of The ROYAL HORTICULTURAL SOCIETY (3^rdEdition). The description is based on the observation of plants growing on ‘Thompson Seedless’ rootstock outdoors near San Joaquin Valley of Central California, U.S.A.

Vine Characteristics:


	vigor	Vigorous upright shoots
	productive capacity	Bearing at a natural, average
		capacity. Spur pruning.
	trunk	Strong and developed.
		Diameter is 1.5 inches, measured at
		5.9 inches above ground.
		Rough with a fibrous, shaggy exterior.
		Light maple brown coloring (greyed
		orange 165B)

Date of bud burst in Bakersfield Calif.: March 10^th

Young Shoot Characteristics:


Openness of tip	slightly open
Density of prostrate hairs on tip	absent or very sparse
Anthocyanin coloration of prostrate	none (yellow green 144A)
hairs on tip
Density of erect hairs on tip	absent or very sparse

Young Leaf Characteristics:


	Color of upper side of blade	yellow green 152A
	Color of lower side of blade	yellow green 151A
	Density of erect hairs between main	absent or very sparse
	veins on upper side of blade
	Density of erect hairs between main	absent or very sparse
	veins on lower side of blade
	Density of prostrate hairs on main	absent or very sparse
	veins on upper side of blade
	Density of prostrate hairs on main	absent or very sparse
	veins on lower side of blade

Shoot Characteristics:


Attitude (before tying)	semi-erect
Color of dorsal side of internodes	yellow green 144A
Color of ventral side of internodes	yellow green 152B
Color of dorsal side of nodes	yellow green 145A
Color of ventral side of nodes	yellow green 152D
Density of erect hairs on internodes	absent or very sparse
Density of prostrate hairs on	absent or very sparse
internodes
Length of tendrils	5.7 inches
Diameter of tendrils	0.09 inches
Color of tendrils	yellow green 145A
Number of tendrils at bloom	4
Positioning of first flowering and	the first bunch is in the 4th node
fruiting node
Inflorescence number per flowering	2
shoot

Flower Characteristics:


	Reproductive organs	fully developed stamens and fully
		developed gynoecium
	Flower length	0.4 inches
	Flower diameter	0.04 inches
	Pistil length	0.06 inches
	Pistil color	green 141C
	Pollen Amount	rich
	Pollen color	yellow 11C
	Stamen color	yellow green 144B
	Stamen length	0.17 inches
	Number of stamen	6

First bloom in Bakersfield, Calif.: 1^stMay

Date of full bloom in Bakersfield, Calif.: 8^thMay

Mature Leaf Characteristics:


	Size of blade	8.5 × 7.5 inches
	Shape of blade	pentagonal
	Base descriptors	pentagonal
	Leaf margin	doubly serrate
	Leaf apex	acute
	Blistering of upper side of blade	absent or very sparse
	Depth of upper lateral sinuses	absent or very shallow
	Number of lobes	five
	(Only varieties with lobed leaves)	closed
	Arrangement of lobes of upper
	lateral sinuses
	Arrangement of lobes of petiole	slightly open
	sinus
	Length of teeth	0.6 inches
	Ratio length/width of teeth	medium
	Shape of teeth	both sides convex
	Density of prostrate hairs between	absent or very sparse
	main veins on lower side of blade
	Density of erect hairs on main veins	absent or very sparse
	on lower side of blade
	Density of erect hairs between the	absent or very sparse
	main veins on upper side of blade
	Density of prostrate hairs on main	absent or very sparse
	veins on upper side of blade
	Length of petiole compared to length	much longer
	of middle vein
	Top side color	yellow green 147A
	Bottom side color	yellow green 147B
	Texture of upper side of blade	smooth
	Texture of lower side of blade	smooth
	Vein color on upper blade	yellow green 145A
	Vein color on lower blade	yellow green 145C
	Venation pattern for upper blade	netlike venation
	Venation patten for lower blade	netlike venation
	Petiole length	4.9 inches
	Petiole diameter	0.15 inches
	Petiole color	yellow green 146D
	Petiole texture	smooth

Date of beginning of berry ripening in Bakersfield Calif.: 2^ndAugust

Bunch Characteristics:


	Size (peduncle excluded)	medium
	Density of berries on bunch	medium
	Bunch length	5.5 inches
	Bunch diameter	5.2 inches
	Length of peduncle of primary bunch	1.9 inches
	Diameter of peduncle of primary	0.2 inches
	bunch
	Peduncle of primary bunch color	yellow green 145A
	Peduncle texture	smooth
	Bunches per vine	51
	Average bunch weight	1.3 lbs

Berry Characteristics:


	Size	medium
	Length	1.2 inches
	Weight	0.3 oz
	Diameter	0.9 inches
	Shape	narrow ellipsoid
	Color of skin (without bloom)	red 53A
	Flesh color	greyed green 193A
	Brix	25
	Titrabable acidity percentage	3.9%
	Juice	3.6 ph
	Ease of detachment from pedicel	difficult
	Thickness of skin	thin
	Anthocyanin coloration of flesh	none
	Firmness of flesh	moderately firm
	Particular flavor	natural, sweet
	Formation of seeds	none
	Berries per bunch	76

Pedicel Characteristics:


	Length	0.4 inches
	Diameter	0.1 inches
	Color	yellow green 144A
	Pedicel texture	rough

Woody Shoot Characteristics:


	Woody shoot texture	rough
	Woody shoot color	greyed orange 165A
	Woody shoot length	136 inches
	Diameter	0.45 inches
	Internode length	4.2 inches

Market use of observed plants: Fresh market

Age And Growing Conditions:

Six years growing under Y system in South Joaquin Valley (hot, dry summers)

Shipping Characteristics:

Fruit was in cold storage. Stored in poly bags inside Styrofoam boxes with sulfur pads. After 30 Days: rachises were 40% green; 0% berry shattering; no berry wrinkling or cracks were apparent.

DNA Profile

To further the characterize the new variety DNA was extracted from plant samples and a DNA profile was obtained at California Seed & Plant Lab, California USA using base pairs for 10 standard microsatellite DNA markers. The data is presented hereafter.

TABLE 2

DNA profile for ARDTHIRTYSIX

Microsatellite DNA Marker	Allele Sizes in Base Pairs

M1	228	238
M2	239	249
M3	179	194
M4	216	220
M5	257	273
M6	135	151
M7	187	189
M8	255	257
M9	214	214
M10	221	237

The ARDTHIRTYSIX variety has not been observed under all possible environmental conditions to date. Accordingly, it is possible that the phenotypic expression may vary somewhat with changes in light intensity and duration, cultural practices, and other environmental conditions.

Additional information relating to plant and fruit disease and pest resistance or susceptibility has not been observed to date. Specification of the plant hardiness zone and the heat/cold resistance has not been observed to date.

Claims

What is claimed is:

1. A new and distinct grapevine, botanically known as Vitis vinifera, identified as ‘ARDTHIRTYSIX’, substantially as shown and described herein.