USPP10871P - Nectarine tree named `Kay Pearl` - Google Patents

Nectarine tree named `Kay Pearl` Download PDF

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Publication number
USPP10871P
USPP10871P US08/975,098 US97509897V US10871P US PP10871 P USPP10871 P US PP10871P US 97509897 V US97509897 V US 97509897V US 10871 P US10871 P US 10871P
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nectarine
fruit
color
size
pearl
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US08/975,098
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Lowell Glen Bradford
Norman G. Bradford
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01HNEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H6/00Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
    • A01H6/74Rosaceae, e.g. strawberry, apple, almonds, pear, rose, blackberries or raspberries
    • A01H6/7427Prunus, e.g. almonds
    • A01H6/7454Nectarines
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01HNEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H5/00Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
    • A01H5/08Fruits

Definitions

  • the present invention relates to a new and distinct variety of nectarine tree, which has been denominated varietally as ⁇ Kay Pearl ⁇ .
  • the present variety was developed by us in 1992 in a cultivated area of our experimental orchard at Bradford Farms near Le Grand, Calif. in Merced County (San Joaquin Valley). It was a first generation cross using ⁇ Spring Bright ⁇ (U.S. Plant Pat. No. 7,507) yellow flesh nectarine as the seed parent and an unnamed white flesh nectarine seedling as the selected pollen parent.
  • the fruit produced by the present variety is most similar to the ⁇ Ruby Pearl ⁇ (U.S. Plant Pat. No. 9,959), by producing white flesh nectarines that mature in late June, that are subacidic in flavor, and that are full red in skin color, but is distinguished therefrom and an improvement thereon by requiring less chilling, by blooming earlier, by having a large blossom instead of small, by having globose glands instead of reniform, and by producing fruit that is larger in size and freestone instead of clingstone.
  • ⁇ Ruby Pearl ⁇ U.S. Plant Pat. No. 9,959
  • the present variety is similar to its seed parent, ⁇ Spring Bright ⁇ (U.S. Plant Pat. No. 7,507) by producing very firm, full red nectarines that ripen the last week in June, but is very distingished therefrom by producing fruit that is white flesh instead of yellow flesh, that is freestone instead of clingstone, and that is subacidic in flavor instead of acidic.
  • the accompanying photograph exhibits four whole fruits positioned to display the characteristics of the skin color and form, one fruit divided aroung the suture plane to reveal the flesh and stone, and typical leaves.
  • Vigor Vigorous, responding typically to irrigation and fertilization.
  • Hardiness Hardy, able to survive typical winter weather experienced in central California.
  • Petiole.--Average length 3/8" 9.5 mm.!. Average thickness: 1/16" 1.6 mm.!. Color: Moderate yellow green 120. m.YG!.
  • Ventral surface Rounded, lipped toward the apex.
  • Cavity Flaring, rounded, elogated in suture plane with suture showing on one side.
  • Base Rounded to slightly truncate.
  • Pistil point Negligible in length, depressed within the suture.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physiology (AREA)
  • Botany (AREA)
  • Developmental Biology & Embryology (AREA)
  • Environmental Sciences (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The present invention relates to a nectarine tree, Prunus persica, and more particularly to a new and distinct variety broadly characterized by a large size, vigorous, self-fertile, productive and reqular bearing tree. The fruit matures under the ecological conditions described approximately the last week in June, with first picking on Jun. 24, 1997. The fruit is uniformly large in size, subacidic in flavor, globose in shape, freestone in type, very firm in texture, and nearly full red in skin color. The variety was a first generation cross using `Spring Bright` (U.S. Plant Pat. No. 7,507) yellow flesh nectarine as the selected seed parent and an unnamed white flesh nectarine seedling as the selected pollen parent.

Description

BACKGROUND OF THE VARIETY
In a continuing effort to improve the quality of fresh market and shipping fruits, we, the inventors, typically hybridize a large number of nectarine and peach seedlings each year. The present invention relates to a new and distinct variety of nectarine tree, which has been denominated varietally as `Kay Pearl`. The present variety was developed by us in 1992 in a cultivated area of our experimental orchard at Bradford Farms near Le Grand, Calif. in Merced County (San Joaquin Valley). It was a first generation cross using `Spring Bright` (U.S. Plant Pat. No. 7,507) yellow flesh nectarine as the seed parent and an unnamed white flesh nectarine seedling as the selected pollen parent. Subsequent to origination of the present variety of nectarine tree, we asexually reproduced it by budding and grafting, and such reproduction of plant and fruit characteristics were true to the original plant in all respects. The reproduction of the variety included the use of Nemaguard Rootstock, the standard of the industry in central California, upon which the present variety was compatible and true to type.
The fruit produced by the present variety is most similar to the `Ruby Pearl` (U.S. Plant Pat. No. 9,959), by producing white flesh nectarines that mature in late June, that are subacidic in flavor, and that are full red in skin color, but is distinguished therefrom and an improvement thereon by requiring less chilling, by blooming earlier, by having a large blossom instead of small, by having globose glands instead of reniform, and by producing fruit that is larger in size and freestone instead of clingstone.
The present variety is similar to its seed parent, `Spring Bright` (U.S. Plant Pat. No. 7,507) by producing very firm, full red nectarines that ripen the last week in June, but is very distingished therefrom by producing fruit that is white flesh instead of yellow flesh, that is freestone instead of clingstone, and that is subacidic in flavor instead of acidic.
DRAWING
The accompanying photograph exhibits four whole fruits positioned to display the characteristics of the skin color and form, one fruit divided aroung the suture plane to reveal the flesh and stone, and typical leaves.
POMOLOGICAL CHARACTERISTICS
Referring now more specifically to the pomological characteristics of this new and distinct variety of nectarine tree, the following has been observed under the ecological conditions prevailing near Le Grand, Merced County (San Joaquin Valley), Calif., and was developed at the state of firm eating ripe on Jun. 27, 1997. All major color code designations are by reference to the Inter-Society Color Council, National Bureau of Standards. Common color names are also used occasionally.
Tree
Size: Large, reaching 10' 3.05 meters! on third leaf trees on Nemaguard rootstock.
Vigor: Vigorous, responding typically to irrigation and fertilization.
Growth: Spreading and dense.
Form: Vase formed.
Hardiness: Hardy, able to survive typical winter weather experienced in central California.
Production: Productive, thinning necessary.
Fertility: Self-fertile.
Bearing: Regular bearer, with no alternate bearing yet observed.
Trunk:
Size.--Medium, reaching 5" 127 mm.! on the third leaf on Nemaguard rootstock.
Texture.--Medium rough, with roughness increasing with age.
Bark color.--Grayish brown 61. gy.Br!.
Lenticels.--Numerous. Color: Strong Brown 55. s.Br!. Average size: 1/8" to 3/8" 3.2-9.5 mm.!.
Branches:
Size.--Medium, typical of the species.
Texture.--Smooth on 1st year wood, increasing roughness with age.
Color.--1st year wood topside: Dark red 16. d.R!. 1st year wood underside: Brilliant yellow green 116. brill.YG!. Older wood: Moderate yellowish brown 77. m.yBr!.
Lenticels.--Numerous, small. Color: Light orange yellow 70. L . OY!. Average size: 1/16" 1.6 mm.!.
Leaves:
Size.--Medium. Average length: 51/2" 139.7 mm.!. Average width: 11/2" 38.1 mm.!.
Thickness.--Medium.
Form.--Elliptical.
Apex.--Acuminate.
Base.--Acute.
Surface.--Smooth.
Color.--Dorsal Surface: Moderate olive green 125. m. OlG!. Ventral Surface: Moderate yellow green 120. m.YG!.
Margin.--Finely serrate.
Venation.--Pinnately net veined.
Petiole.--Average length: 3/8" 9.5 mm.!. Average thickness: 1/16" 1.6 mm.!. Color: Moderate yellow green 120. m.YG!.
Stipules.--Numerous, 2 per leaf, 2-6 per growing tip. Average length: 3/8" 9.5 mm.!.
Glands.--Numbers: 2 to 4 per leaf. Position: Some oppositely and some alternately positioned on petiole and base of blade. Size: Medium. Form: Globose. Color: Light yellow green 119. L. YG!.
Flower buds:
Hardiness.--Hardy, with respect to central California winters.
Diameter.--Typically 3/8" 9.5 mm.! 1 week before bloom.
Length.--Typically 11/16" 17.5 mm.! 1 week before bloom.
Form.--Free.
Surface.--Pubescent.
Flowers:
Blooming period.--Early as compared with other varieties.
Onset of bloom.--One percent on Feb. 18, 1997.
Fragrance.--Slight to moderate.
Type.--Showy.
Average diameter.--13/4" 44.45 mm!.
Color.--Pale pink 7. p.Pk!.
Fruit
Maturity when described: Hard ripe, Jun. 27, 1997.
Date of first picking: Jun. 24, 1997.
Date of last picking: Jul. 7, 1997.
Size: Uniform, large.
Average diameter axially.--25/8" 66.7 mm.!.
Average transversely in suture plane.--23/4" 69.9 mm.!.
Typical weight.--6.38 ounces 181 grams!.
Form: Globose, uniform.
Longitudinal section form.--Round.
Transverse section through diameter.--Round.
Suture: An inconspicuous line toward the base, becoming a shallow groove toward the apex, having a slight depression beyond the pistil point.
Ventral surface: Rounded, lipped toward the apex.
Lips: Equal.
Cavity: Flaring, rounded, elogated in suture plane with suture showing on one side.
Depth.--3/8" 9.5 mm.!.
Breadth.--3/4" 19.1 mm.!.
Base: Rounded to slightly truncate.
Apex: Rounded.
Pistil point: Negligible in length, depressed within the suture.
Stem: Medium.
Average length.--3/8" 9.5 mm.!.
Average width.--3/16" 4.8 mm.!.
Skin:
Thickness.--Medium.
Texture.--Medium.
Tenacity.--Tenacious to flesh.
Tendency to crack.--Slight in the wet season.
Color.--Very dark red 17. v.d.R! with strong orange yellow 68. s.OY! freckling toward the apex, with vivid purplish green 148. v.p.G! stem markings typical on some fruit.
Flesh:
Color.--Greenish white 153. gWhite! from skin to stone, with no bleeding and very slight moderate red 15. m.R! streaking next to the stone.
Surface of pit cavity.--Covered with moderate red 15. m.R! fibers.
Amygdalin.--Scarce.
Juice.--Moderate, rich.
Texture.--Firm, crisp.
Fibers.--Abundant, fine.
Ripens.--Even to slightly earliest at apex.
Flavor.--Mild subacidic and sweet, with 16 to 18 brix.
Aroma.--Slightly pronounced.
Eating quality.--Very good.
Stone
Type: Freestone.
Form: Oval.
Base: Somewhat oblique.
Apex: Acute.
Sides: Equal.
Surface: Irregularly furrowed toward the apex and pitted from the center toward the base.
Ridges: Jagged toward the base.
Color: Light brown 57. L.Br! through the wall when first removed and cracked.
Pit wall: 1/4" 6.4 mm.! thick.
Tendency to split: None observed.
Kernel:
Form.--Oval.
Taste.--Bitter.
Viable.--Yes.
Average width.--1/2" 12.7 mm.!.
Average length.--11/16" 17.5 mm.!.
Skin color.--Pale yellow 89. p.Y! when first removed.
Pellicle color.--Moderate yellowish brown 77. m.yBr!.
Amygdalin.--Abundant.
Use
Market: Local and long distance shipping.
Keeping quality: Fruit quality observed to remain in good condition in excess of 18 days in cold room at 36° Fahrenheit 2° Celsius!.
Resistance to insects: No unusual susceptibilities noted.
Resistance to diseases: No unusual susceptibilities noted.
Although the new variety of nectarine tree possesses the described characteristics under the ecological conditions at Le Grand, Calif., in the central part of the San Joaquin Valley, it is to be expected that variations in these characteristics may occur when farmed in areas with different climatic conditions, different soil types, and/or varying cultural practices.

Claims (1)

We claim:
1. A new and distinct variety of nectarine tree, substantially as illustrated and described, that is most similar to the `Ruby Pearl` (U.S. Plant Pat. No. 9,959), by producing white flesh nectarines that mature in late June, that are subacidic in flavor, and that are full red in skin color, but is distinguished therefrom and an improvement thereon by requiring less chilling, by blooming earlier, by having a large blossom instead of small, by having globose glands instead of reniform, and by producing
US08/975,098 1997-11-20 1997-11-20 Nectarine tree named `Kay Pearl` Expired - Lifetime USPP10871P (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP14249P2 (en) 2002-11-19 2003-10-21 Lowell Glen Bradford Nectarine tree named ‘Candy Pearl’
USPP23607P2 (en) 2011-12-08 2013-05-21 Lowell Glen Bradford Nectarine tree named ‘Pearlicious VI’

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP7507P (en) * 1988-12-26 1991-04-23 Nectarine tree (Spring Bright)
USPP9959P (en) * 1996-04-29 1997-07-15 Bradford; Lowell Glen Nectarine tree "Ruby Pearl"

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP7507P (en) * 1988-12-26 1991-04-23 Nectarine tree (Spring Bright)
USPP9959P (en) * 1996-04-29 1997-07-15 Bradford; Lowell Glen Nectarine tree "Ruby Pearl"

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP14249P2 (en) 2002-11-19 2003-10-21 Lowell Glen Bradford Nectarine tree named ‘Candy Pearl’
USPP23607P2 (en) 2011-12-08 2013-05-21 Lowell Glen Bradford Nectarine tree named ‘Pearlicious VI’

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