STRAWBERRY PLANT NAMED 'DRISSTRAWSEVEN'

Information

  • Patent Application
  • 20100088791
  • Publication Number
    20100088791
  • Date Filed
    October 06, 2008
    16 years ago
  • Date Published
    April 08, 2010
    14 years ago
  • US Classifications
  • International Classifications
    • A01H5/00
Abstract
This invention relates to a new and distinct cultivar of strawberry plant named ‘DrisStrawSeven’. The new cultivar is primarily characterized by its large, sweet tasting fruit, early harvest maturity, and resistance to powdery mildew is disclosed.
Description
GENUS AND SPECIES


Fragaria×ananassa


VARIETY DENOMINATION

‘DrisStrawSeven’


BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry cultivar designated ‘DrisStrawSeven’ and botanically known as Fragaria×ananassa. This new strawberry cultivar was discovered in Monterey, Calif. in June, 2003 and originated from a cross between the female proprietary parent ‘77G1’ (unpatented) and the male parent ‘Driscoll Camarillo’ (U.S. Plant Pat. No. 14,771). The original seedling of the new cultivar was asexually propagated at a nursery in Shasta County, California. ‘DrisStrawSeven’ was subsequently asexually propagated and underwent further testing at a nursery in Hillsborough, Fla. for four years. The present invention has been found to retain its distinctive characteristics through successive asexual propagations.





DESCRIPTION OF THE PHOTOGRAPHS

The accompanying color photographs show typical specimens of the new cultivar at various stages of development as nearly true as it is possible to make in color reproductions. The photographs were taken from 5-month-old plants.



FIG. 1 shows overall plant habit including fruit at various stages of development.



FIG. 2 shows leaves of the plant with three leaflets.



FIG. 3 shows the upperside of several of the flowers.



FIG. 4 shows the whole fruit.



FIG. 5 shows the fruit in longitudinal cross-section.





DESCRIPTION OF THE NEW CULTIVAR

The following description of ‘DrisStrawSeven’ is based on observations taken from the 2003 to 2008 growing seasons in Hillsborough, Fla. This description is in accordance with UPOV terminology. Color designations, color descriptions, and other phenotypical descriptions may deviate from the stated values and descriptions depending upon variation in environmental, seasonal, climatic and cultural conditions. ‘DrisStrawSeven’ has not been observed under all possible environmental conditions. The botanical description of ‘DrisStrawSeven’ was taken from 5-month-old plants. Color terminology follows The Royal Horticultural Society Colour Chart, London (R.H.S.) (2001).


DETAILED BOTANICAL DESCRIPTION

Table 1 shows selected plant characteristics of the new variety compared with plant characteristics of ‘Driscoll Atlantis’, (U.S. Plant Pat. No. 16,475) and ‘Driscoll Sanibel’ (U.S. Plant Pat. No. 16,298). Plant characteristics include plant height, petiolule length, stipule width, inflorescence position relative to foliage, flower size, fruit truss diameter, and fruit size.












TABLE 1







‘Driscoll
‘Driscoll


Characteristic
‘DrisStrawSeven’
Atlantis’
Sanibel’


















Plant height
20.9
19.8
20.2


(cm)


Petiolule length
1.394
1.451
1.626


(cm)


Stipule
0.420
0.087
0.112


width (cm)


Inflorescence
Above
Between above
Between beneath


position

and level with
and level with


relative to


foliage


Flower size
Medium
Between medium
Large




and large


Fruit truss
0.522
0.423
0.404


diameter (cm)


Fruit size
Large
Medium
Between large





and very large









Table 2 shows plant characteristics of the new variety compared with plant characteristics of the commercial varieties ‘Driscoll Atlantis’ (U.S. Plant Pat. No. 16,475) and ‘Driscoll Sanibel’ (U.S. Plant Pat. No.16,298). Plant characteristics include plant height, diameter, number of crowns per plant, habit, density of individual plant and vigor.












TABLE 2








‘Driscoll


Characteristic
‘DrisStrawSeven’
‘Driscoll Atlantis’
Sanibel’


















Plant height (cm)
20.9
19.8
20.2


Plant diameter (cm)
35.5
38.9
38.7


Number of
3
3
2


crowns/plant


Habit
Flat globose
Flat globose
Flat


Density of
Medium
Medium to Dense
Medium


individual plant


Vigor
Medium
Medium
Strong









Table 3 shows leaf characteristics of the new cultivar compared with leaf characteristics of ‘Driscoll Atlantis’ and ‘Driscoll Sanibel’. Leaf characteristics include terminal leaflet length and width in centimeters, length to width ratio, number of teeth per terminal leaflet, shape of teeth, color of upperside and underside of leaf, leaf shape in cross section, leaf blistering, leaf glossiness, number of leaflets, terminal leaflet margin, terminal leaflet length to width ratio and shape of leaf apex and base.












TABLE 3





Leaf Characteristic
‘DrisStrawSeven’
‘Driscoll Atlantis’
‘Driscoll Sanibel’


















Terminal leaflet
7.97
7.89
8.56


length (cm)


Terminal leaflet
7.96
8.01
8.47


width (cm)


Terminal leaflet
1.0
1.0
1.0


lengthlwidth ratio


No. teeth/terminal
23
23
22


leaflet


Shape of teeth
Rounded
Between obtuse and
Rounded




rounded


Color of upperside of
RHS 147A
RHS 137A
RHS 131B


leaf
Dark yellow-green
Dark green
Dark green


Color of underside of
RHS 138B
RHS 140D
RHS 142C


leaf
Medium green
Light green
Light green


Leaf shape in cross
Slightly concave
Between slightly
Slightly concave


section

concave and flat


Leaf blistering
Strong
Medium
Between medium





and strong


Leaf glossiness
Medium
Weak
Medium


No. leaflets
More than three (up to
Three only
Three only



5 out of 10 leaves)


Terminal leaflet
Flat
Flat
Flat


margin


Terminal leaflet:
As long as broad
As long as broad
As long as broad


length/width ratio


Terminal leaflet
Orbicular
Ovate
Between oval and


shape


ovate


Terminal leaflet base
Rounded

Obtuse


shape


Terminal leaflet apex
Rounded
Rounded
Rounded


shape









Table 4 shows information about the petiole, the petiolule, the bract, and the stipule of the new cultivar compared to ‘Driscoll Atlantis’ and ‘Driscoll Sanibel’. This includes petiole length in centimeters, petiole diameter in centimeters, petiole pubescence, pose of hairs on the petiole, color of the petiole, color of the petiolule, petiolule length in centimeters, petiolule diameter in centimeters, bract frequency per petiole, stipule length in centimeters, stipule width in centimeters, and stipule pubescence.












TABLE 4








‘Driscoll


Characteristic
‘DrisStrawSeven’
‘Driscoll Atlantis’
Sanibel’


















Petiole length (cm)
12.7
13.7
15.3


Petiole diameter (cm)
0.456
0.430
0.455


Petiole pubescence
Between medium
Dense
Medium



and dense


Petiole pose of hairs
Between upwards
Outwards
Between



and outwards

outwards and




downwards


Petiole color
RHS 144D
RHS 145C
RHS 145D Light



Light yellow-green
Light yellow-green
yellow-green


Petiolule color
RHS 144D
RHS 145C
RHS 145D Light



Light yellow-green
Light yellow-green
yellow-green


Petiolule length (cm)
1.394
1.451
1.626


Petiolule diameter (cm)
0.237
0.213
0.233


Bract frequency
2
2
2


Stipule length (cm)
3.8
3.7
3.9


Stipule width (cm)
0.420
0.087
0.112


Stipule pubescence
Medium
Dense
Medium


Stipule anthocyanin
Medium


coloration









Table 5 shows stolon characteristics of the new cultivar compared to ‘Driscoll Atlantis’ and ‘Driscoll Sanibel’. These characteristics include the number of stolons, average number of daughter plants, the anthocyanin coloration of the stolons, the thickness of the stolons, and the pubescence of the stolons.












TABLE 5








‘Driscoll


Characteristic
‘DrisStrawSeven’
‘Driscoll Atlantis’
Sanibel’







Stolon Number
Many




Average number of
55
53
52


daughter plants


Stolon Anthocyanin
Medium
Between weak and
Strong



medium


Stolon Thickness
Medium
Medium
Medium


Stolon Pubescence
Sparse
Medium
Medium









Table 6 shows inflorescence characteristics of the new cultivar compared to ‘Driscoll Atlantis’ and ‘Driscoll Sanibel’. These characteristics include inflorescence position relative to foliage, relative flower size, flower diameter in centimeters (measured from petal tip to petal tip), petal shape, relative spacing of petals, petal apex, base and margin, petal length in centimeters, petal width in centimeters, petal length to width ratio, number of petals, petal color, calyx diameter in centimeters (measured on back of flower from sepal tip to sepal tip), diameter of calyx relative to corolla, diameter of inner calyx relative to outer, sepal shape, apex and margin, sepal length in centimeters (measured from sepal tip to point of attachment to receptacle), sepal width in centimeters, number of sepals, receptacle color and anther color.












TABLE 6







‘Driscoll



Characteristic
‘DrisStrawSeven’
Atlantis’
‘Driscoll Sanibel’







Inflorescence position
Above
Between level
Between beneath and


relative to foliage

with and above
level with


Flower size
Medium
Between medium
Large




and large


Flower diameter (cm)
2.238
2.369
2.070


Petal shape
Orbicular
Orbicular
Orbicular


Petal spacing
Overlapping
Overlapping
Between touching





and overlapping


Petal apex shape
Rounded
Rounded
Rounded


Petal margin
Entire
Entire
Entire


Petal base shape
Rounded
Rounded
Rounded


Petal length (cm)
1.043
1.248
1.166


Petal width (cm)
1.081
1.302
1.188


Petal lengthlwidth ratio
tc As long as broad
As long as broad
As long as broad


Typical and observed
6
5
6


petal number


Petal color
RHS 155D
RHS 155C White
RHS 155C



White

White


Calyx diameter (cm)
2.789
2.871
2.997


Calyx diameter relative to
Between smaller and
Between same
Between same size


corolla
same size
size and larger
and larger


Inner calyx diameter
Same size
Same size
Larger


relative to outer


Sepal shape
Elliptical
Elliptical
Elliptical


Sepal apex shape
Convex
Convex
Convex


Sepal margin
Entire
Entire
Entire


Sepal length (cm)
0.989
1.040
1.172


Sepal width (cm)
0.508
0.713
0.637


Typical and observed
12
11
11


sepal number


Receptacle color
RHS 3A
RHS 149A
RHS 149B



Medium yellow
Medium yellow
Medium yellow





green


Anther color
RHS 7A
RHS 9A
RHS 9A



Dark yellow
Dark yellow
Dark yellow









Table 7 shows fruit characteristics of the new cultivar compared to ‘Driscoll Atlantis’ and ‘Driscoll Sanibel’. These characteristics include fruiting truss length in centimeters, fruiting truss diameter, number of berries per truss, fruiting truss attitude, fruiting truss color, fruit length in centimeters, fruit truss width in centimeters, fruit length to width ratio, fruit hollow length and width in centimeters, fruit weight in grams, relative fruit size, predominant fruit shape, difference in shape between primary and secondary fruits, band without achenes, unevenness of fruit surface, fruit skin color, evenness of fruit color, fruit glossiness, insertion of achenes, achene coloration (sunward and shaded sides of berry), insertion of calyx, pose of calyx segments, size of calyx in relation to fruit, adherence of calyx, firmness of flesh, color of the fruit flesh, evenness of the flesh color, distribution of flesh color, hollow center, sweetness of fruit, acidity of fruit, texture of fruit when tasted, time of flowering, harvest maturity, type of bearing, grams of fruit per plant.












TABLE 7







‘Driscoll
‘Driscoll


Characteristic
‘DrisStrawSeven’
Atlantis’
Sanibel’


















Fruiting truss length
22.2
22.7
19.7


(cm)


Fruiting truss
0.522
0.423
0.404


diameter (cm)


Number of berries
3
3
1


per fruiting truss


Fruiting truss
Between erect and
Prostrate
Prostrate


attitude
semi-erect


Fruiting truss color
RHS 144D
RHS 145B
RHS 144B



Light yellow green
Light yellow
Light yellow



green
green


Fruit length (cm)
4.890
4.200
5.180


Fruit width (cm)
3.720
3.640
4.610


Fruit length/width
1.3
1.2
1.1


ratio


Fruit length/width
Longer than broad
Longer than
Longer than


ratio

broad
broad


Fruit hollow
2.130
1.880
2.310


length (cm)


Fruit hollow
0.420
0.85 0
0.790


width (cm)


Fruit hollow
5.1
2.2
2.9


length/width ratio


Fruit weight (g)
26.7
23.8
31.8


Relative fruit size
Large
Medium
Between large





and very large


Predominant fruit
Conical
Conical
Conical


shape


Difference in shape
Slight
Slight
Slight


between primary &


secondary fruits


Band without
Narrow
Absent or
Narrow


achenes

very narrow


Unevenness of fruit
Medium
Between
Medium


surface

weak and




medium


Fruit skin color
RHS 46A
RHS 45B
RHS 43A



Dark red
Medium red
Medium red


Evenness of fruit
Even
Even
Even


color


Fruit glossiness
Between medium
Strong
Strong



and strong


Insertion of achenes
Level with surface
Level with
Level with




surface
surface


Achene coloration-
RHS 145A
RHS 151D
RHS 150C


shaded side of berry
Light yellow-green
Light
Light




yellow-green
yellow-green


Insertion of calyx
Level
Level
Level


Pose of calyx
Spreading
Between
Between


segments

spreading
spreading and




and reflexed
reflexed


Size of calyx in
Between same size
Between
Larger


relation to fruit
and larger
same size




and larger


Adherence of calyx
Strong
Strong
Strong


Firmness of flesh
Between medium
Firm
Medium



and firm


Color of the flesh
RHS 40B
RHS 42B
RHS 40C



Medium red
Medium red
Medium red


Evenness of flesh
Between uneven and
Slightly
Slightly uneven


color
slightly uneven
uneven


Distribution of flesh
Marginal and central
Marginal and
Marginal and


color

central
central


Hollow center
Small
Medium
Medium


Sweetness
Strong
Strong
Strong


Acidity
Between weak and
Medium
Medium



medium


Texture when tasted
Fine
Medium
Fine


Time of flowering
Medium
Very early
Early


Harvest maturity
Early December to
Late
Late November


(50% of plants with
late April
November
to mid-March


ripe fruit)

to




mid-March


Type of bearing
Not everbearing
Partially
Partially




everbearing
everbearing


Grams of fruit/plant
402
360
448









Table 8 shows pest and disease characteristics of the new cultivar compared to ‘Driscoll Atlantis’ and ‘Driscoll Sanibel’.












TABLE 8





Pest or Disease
‘DrisStrawSeven’
‘Driscoll Atlantis’
‘Driscoll Sanibel’








Xanthomonas

Susceptible
Moderately
Moderately



fragariae


susceptible
susceptible


Powdery
Resistant
Susceptible
Susceptible


mildew









COMPARISON WITH PARENTAL CULTIVARS

When ‘DrisStrawSeven’ is compared to the proprietary female parent ‘77G1’ (unpatented), ‘DrisStrawSeven’ is a short-day plant, whereas ‘77G1’ is a day-neutral plant.


When ‘DrisStrawSeven’ is compared to the male parent ‘Driscoll Camarillo’ (U.S. Plant Pat. No. 14,771), ‘DrisStrawSeven’ is a globose plant that is not everbearing, whereas ‘Driscoll Camarillo’ is a flat globose plant that is fully everbearing. In addition, the leaf shape in cross section of ‘DrisStrawSeven’ is slightly concave and ‘DrisStrawSeven’ has more than three leaflets. The leaf shape in cross section of ‘Driscoll Camarillo’ is concave and ‘Driscoll Camarillo’ has only three leaflets. Further, the fruiting truss attitude in ‘DrisStrawSeven’ is between erect and semi-erect, whereas it is prostrate in ‘Driscoll Camarillo’.

Claims
  • 1. A new and distinct cultivar of strawberry plant as described and shown herein.