U.S. patent number PP19,240 [Application Number 11/974,124] was granted by the patent office on 2008-09-16 for strawberry plant named `drisstrawfour`.
This patent grant is currently assigned to Driscoll Strawberry Associates, Inc.. Invention is credited to Kristie L. Gilford, Bruce D. Mowrey.
United States Patent |
PP19,240 |
Gilford , et al. |
September 16, 2008 |
Strawberry plant named `DrisStrawFour`
Abstract
This invention relates to a new and distinct cultivar of
strawberry plant named `DrisStrawFour`. A new cultivar primarily
characterized by its large fruit size, heavy fruit production,
moderate resistance to Lygus hesperus, Botrytis fruit rot, powdery
mildew, and Strawberry Mottle Virus and resistance to Verticillium
wilt is disclosed.
Inventors: |
Gilford; Kristie L. (Dover,
FL), Mowrey; Bruce D. (Watsonville, CA) |
Assignee: |
Driscoll Strawberry Associates,
Inc. (Watsonville, CA)
|
Family
ID: |
39743344 |
Appl.
No.: |
11/974,124 |
Filed: |
October 11, 2007 |
Current U.S.
Class: |
PLT/208 |
Current CPC
Class: |
A01H
6/7409 (20180501); A01H 5/08 (20130101) |
Current International
Class: |
A01H
5/00 (20060101) |
Field of
Search: |
;PLT/208 |
Primary Examiner: Para; Annette H
Attorney, Agent or Firm: Jondle & Associates, P.C.
Claims
We claim:
1. A new and distinct cultivar of strawberry plant as described and
shown herein.
Description
Genus and species: Fragaria.times.ananassa.
Variety denomination: `DrisStrawFour`.
BACKGROUND OF THE NEW PLANT
The present invention relates to a new and distinct strawberry
cultivar designated `DrisStrawFour` and botanically known as
Fragaria.times.ananassa. This new strawberry cultivar was
discovered in December, 2000 and originated from a cross between
the female parent `6F364`, a proprietary strawberry plant
(unpatented) and the male parent `Mirador` (U.S. Plant Pat. No.
11,279). The original seedling of the new cultivar was asexually
propagated at a nursery in Shasta County, California.
`DrisStrawFour` was subsequently asexually propagated and underwent
further testing at a nursery in Hillsborough County, Florida for
six 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.
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 both the upperside and underside 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 `DrisStrawFour` is based on
observations taken from the 2000 to 2005 growing seasons in
Hillsborough County, Florida. 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. `DrisStrawFour` has not
been observed under all possible environmental conditions. Color
terminology follows The Royal Horticultural Society Colour Chart,
London (R.H.S.) (2001).
DETAILED BOTANICAL DESCRIPTION
Table 1 shows plant characteristics of the new variety compared
with plant characteristics of the male parent `Driscoll Mirador`
(U.S. Plant Pat. No. 11,279). Plant characteristics include plant
height, terminal leaf length, petiole length, fruit length, fruit
width and Botrytis fruit rot.
TABLE-US-00001 TABLE 1 `Driscoll Characteristic `DrisStrawFour`
Mirador` Plant height (cm) 20.9 13.5 Terminal leaf 8.3 7.7 length
(cm) Petiole length 11.2 9.2 (cm) Fruit length (cm) 4.5 3.4 Fruit
width (cm) 4.2 2.4 Botrytis fruit rot Moderately resistant
Moderately susceptible
Table 2 shows plant characteristics of the new variety compared
with plant characteristics of the commercial varieties, `Driscoll
Malibu` (U.S. Plant Pat. No. 16,070) and `Driscoll Osceola` (U.S.
Plant Pat. No. 15,752). Plant characteristics include plant height,
diameter, number of crowns per plant, habit, density of individual
plant and vigor.
TABLE-US-00002 TABLE 2 Characteristic `DrisStrawFour` `Driscoll
Malibu` `Driscoll Osceola` Plant height 20.9 17.9 18.5 (cm) Plant
diameter 40.7 39.8 38.2 (cm) Number of 4 4 2 crowns/plant Habit
Between flat Globose Flat globose globose and flat Density of
Between medium Medium Between open individual plant and dense and
medium Vigor Strong Between weak Medium and medium
Table 3 shows leaf characteristics of the new cultivar compared
with leaf characteristics of `Driscoll Malibu` and `Driscoll
Osceola`. 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, leaflet margin, and shape of leaf
base.
TABLE-US-00003 TABLE 3 Leaf `Driscoll Characteristic
`DrisStrawFour` `Driscoll Malibu` Osceola` Terminal 8.3 9.3 10.3
leaflet length (cm) Terminal 8.2 9.3 10.4 leaflet width (cm)
Terminal 1.02 1.00 0.98 leaflet length/width ratio No. 25 23 11
teeth/terminal leaflet Shape of teeth Rounded Between obtuse Obtuse
and rounded Color of RHS 137A Dark RHS 141A Dark RHS 135B upperside
of green bright green Dark bright leaf blue-green Color of RHS 148C
RHS 139C RHS 138B underside of Medium Medium green Medium green
leaf yellow-green Leaf shape in Concave Between slightly Between
cross section concave and flat concave and slightly concave Leaf
blistering Strong Medium Medium Leaf glossiness Medium Weak Medium
No. leaflets Three only Three only Three only Terminal Flat Flat
Flat leaflet margin Terminal As long as broad As long as broad As
long as leaflet: broad length/width ratio Terminal Obtuse Rounded
Rounded leaflet base shape
Table 4 shows information about the petiole, the petiolule, the
bract, and the stipule of the new cultivar compared to `Driscoll
Malibu` and `Driscoll Osceola`. This includes petiole length in
centimeters, petiole diameter in centimeters, petiolule length in
centimeters, petiolule diameter in centimeters, bract frequency per
petiole, stipule length in centimeters, stipule width in
centimeters, stipule pubescence, petiole pubescence, pose of hairs
on the petiole, color of the petiole and color of the
petiolule.
TABLE-US-00004 TABLE 4 `Driscoll Characteristic `DrisStrawFour`
`Driscoll Malibu` Osceola` Petiole length 11.2 10.5 9.1 (cm)
Petiole diameter 0.417 0.402 0.406 (cm) Petiole Between sparse
Dense Dense pubescence and medium Petiole pose of Upwards Downwards
Between hairs outwards and downwards Petiole color RHS 145A Light
RHS 144B Bright RHS 141C yellow-green yellow-green Bright medium
green Petiolule color RHS 145C Light yellow-green Petiolule length
1.096 1.424 1.205 (cm) Petiolule diameter 0.232 0.260 0.251 (cm)
Bract frequency 1 1 0 Stipule length 3.8 4.0 4.5 (cm) Stipule width
1.047 1.162 1.091 (cm) Stipule Medium Medium Medium pubescence
Table 5 shows stolon characteristics of the new cultivar compared
to `Driscoll Malibu` and `Driscoll Osceola`. These characteristics
include the number of stolons, the anthocyanin coloration of the
stolons, the thickness of the stolons, and the pubescence of the
stolons.
TABLE-US-00005 TABLE 5 `Driscoll Characteristic `DrisStrawFour`
`Driscoll Malibu` Osceola` Stolon Number Few Few Few Stolon Very
strong Between medium Between Anthocyanin and strong medium and
strong Stolon Thickness Thick Between medium Between and thick
medium and thick Stolon Sparse Medium Dense Pubescence
Table 6 shows inflorescence characteristics of the new cultivar
compared to `Driscoll Malibu` and `Driscoll Osceola`. These
characteristics include inflorescence position relative to foliage,
relative flower size, flower diameter in centimeters (measured from
petal tip to petal tip), relative spacing of petals, petal length
in centimeters, petal width in centimeters, petal length to width
ratio, 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 length
in centimeters (measured from sepal tip to point of attachment to
receptacle), sepal width in centimeters, receptacle color and
anther color.
TABLE-US-00006 TABLE 6 `Driscoll Characteristic `DrisStrawFour`
`Driscoll Malibu` Osceola` Inflorescence Between level Between
level Between level position relative with and above with and above
with and above to foliage Flower size Medium Medium Medium Flower
diameter 3.014 2.525 3.045 (cm) Petal spacing Overlapping
Overlapping Overlapping Petal length (cm) 1.278 1.290 1.623 Petal
width (cm) 1.463 1.429 1.698 Petal length/width 0.87 0.90 0.96
ratio Petal length/width Broader than long Between much Between as
ratio broader than long as broad long and and longer broader than
than broad long Petal color RHS 155C White RHS 155C RHS 155C White
White Calyx diameter 3.776 4.021 5.659 (cm) Calyx diameter Larger
Larger Larger relative to corolla Inner calyx Same size Larger
Between diameter relative smaller and to outer same size Sepal
length (cm) 1.252 1.396 2.147 Sepal width (cm) 0.718 0.796 1.182
Receptacle color RHS 9A Bright golden yellow Anther color RHS 12A
Golden yellow
Table 7 shows fruit characteristics of the new cultivar compared to
`Driscoll Malibu` and `Driscoll Osceola`.
TABLE-US-00007 TABLE 7 `Driscoll Characteristic `DrisStrawFour`
`Driscoll Malibu` Osceola` Fruiting truss 19.1 17.4 19.9 length
(cm) Fruiting truss Prostrate Prostrate Prostrate attitude Fruiting
truss Between short Short Between short length and medium and
medium Fruit length (cm) 4.517 4.921 4.223 Fruit width (cm) 4.183
3.960 3.968 Fruit length/width 1.08 1.24 1.06 ratio Fruit
length/width As long as broad Between as As long as ratio long as
broad broad and longer than broad Fruit weight (g) 28 28 30
Relative fruit size Medium Between Between small medium and and
medium large Predominant fruit Cordate Conical Cordate shape
Difference in Slight Slight Slight shape between primary &
secondary fruits Band without Medium Between Between achenes absent
and absent and very narrow very narrow to narrow Unevenness of
Between absent Medium Weak fruit surface and very weak Fruit skin
color RHS 46A Dark RHS 46B Dark RHS 46A red bright red Dark red
Evenness of fruit Even Slightly uneven Slightly uneven color Fruit
glossiness Between medium Strong Strong and strong Insertion of
Level with Between below Below surface achenes surface surface and
level with surface Achene RHS 181A Dark coloration- greyed-red
sunward side of berry Achene RHS 13A Golden coloration-shaded
yellow side of berry Achenes per berry 356 Achene weight 0.0014
Insertion of calyx Level Level Level Pose of calyx Between Reflexed
Between segments spreading and spreading and reflexed reflexed Size
of calyx in Between same Between same Between same relation to
fruit size and larger size and larger size and larger Adherence of
Strong Strong Strong calyx Firmness of flesh Medium Between soft
Between soft and medium and medium Color of the flesh RHS 44B
Bright RHS 48C RHS 48D Light red and RHS Medium pink pink 155C
White Evenness of flesh Slightly uneven Slightly uneven Slightly
uneven color Distribution of Marginal and Marginal and Marginal and
flesh color central central central Hollow center Large Small
Medium Sweetness Strong Medium Medium Acidity Medium Medium Medium
Texture when Medium Medium Fine tasted Time of flowering Very early
Very early Very early Harvest maturity Early-Mid Late Late (50% of
plants November to with ripe fruit) early April Type of bearing
Fully everbearing Partially Partially everbearing everbearing Grams
of 443 287 422 fruit/plant
Table 8 shows the resistance to different forms of stress of the
new cultivar compared to `Driscoll Malibu` and `Driscoll Osceola`.
These forms of stress include high temperatures and pesticides.
TABLE-US-00008 TABLE 8 Reaction to `Driscoll Stress `DrisStrawFour`
`Driscoll Malibu` Osceola` High Moderately resistant
temperatures
Table 9 shows pest and disease characteristics of the new cultivar
compared to `Driscoll Malibu` and `Driscoll Osceola`.
TABLE-US-00009 TABLE 9 `Driscoll Pest or Disease `DrisStrawFour`
`Driscoll Malibu` Osceola` Tetranychus urticae Moderately
Susceptible Susceptible (2-spotted spider susceptible mite)
Tarsonemus pallidus Moderately resistant Aphelencoides Moderately
fragariae resistant Pratylenchus Moderately penetrans susceptible
Aphis spp. (Aphids) Moderately susceptible Lygus hesperus
Moderately Susceptible Susceptible (Lygus bug) resistant Botrytis
fruit rot Moderately Susceptible Susceptible resistant Powdery
mildew Moderately Moderately Moderately resistant susceptible
susceptible Verticillium wilt Resistant Highly Susceptible
susceptible Leather rot Resistant Red stele Moderately Phytophthora
resistant fragariae Ramularia tulasnei- Moderately Leaf spots
resistant Leaf scorch Resistant Leaf blight Resistant Black root
rot Resistant Viral diseases- Moderately Susceptible Susceptible
Strawberry Mottle resistant Virus Xanthomonas Moderately Moderately
Moderately fragariae susceptible susceptible susceptible
* * * * *