U.S. patent number PP15,731 [Application Number 10/271,417] was granted by the patent office on 2005-04-26 for strawberry plant named `driscoll agoura`.
This patent grant is currently assigned to Driscoll Strawberry Associates, Inc.. Invention is credited to Amado Q. Amorao, Michael Ferguson, Arnoldo Solis, Jr..
United States Patent |
PP15,731 |
Amorao , et al. |
April 26, 2005 |
Strawberry plant named `Driscoll Agoura`
Abstract
This invention relates to a new and distinct variety of
strawberry named `Driscoll Agoura`. The variety is similar to the
varieties `El Capitan` and `San Miguel`. The variety is
distinguished from `El Capitan` and `San Miguel`, in particular, by
its weak vigor, obtuse to slightly oblique terminal leaflet base,
few stolons, dense stolon pubescence, flat fruiting truss at first
picking, strong unevenness of fruit surface, and medium sweetness
of the fruit.
Inventors: |
Amorao; Amado Q. (Camarillo,
CA), Solis, Jr.; Arnoldo (Oxnard, CA), Ferguson;
Michael (Chatsworth, CA) |
Assignee: |
Driscoll Strawberry Associates,
Inc. (Watsonville, CA)
|
Family
ID: |
34434701 |
Appl.
No.: |
10/271,417 |
Filed: |
October 15, 2002 |
Current U.S.
Class: |
PLT/209 |
Current CPC
Class: |
A01H
6/7409 (20180501); A01H 5/08 (20130101) |
Current International
Class: |
A07H 005/00 () |
Field of
Search: |
;PLT/209 |
Primary Examiner: Campell; Bruce R.
Assistant Examiner: Kizilkaya; Michelle
Attorney, Agent or Firm: Jones Day
Claims
What is claimed is:
1. A new and distinct variety of strawberry plant, substantially as
shown and described.
Description
Latin name of the genus and species of the plant claimed: The
variety is botanically identified as Fragaria.times.ananassa.
1. BACKGROUND OF THE INVENTION
The new variety originated as a result of a controlled cross
between the strawberry plants `61C117` (unpatented Driscoll
variety) and `19A268` (unpatented Driscoll variety) in an ongoing
breeding program, and was discovered as a seedling in a controlled
breeding plot in, Ventura County, Calif. in February, 1998. The
original seedling of the new cultivar was asexually propagated by
stolons at a nursery in Shasta County, Calif. Propagules were
transplanted to a controlled breeding plot in Ventura County,
Calif., where it was identified and selected for further
evaluation. `Driscoll Agoura` was subsequently asexually propagated
and underwent further testing at various locations in Ventura
County, Calif. for four years. This propagation and testing has
demonstrated that the combination of traits disclosed herein which
characterize the new variety are fixed and retained true to type
through successive generations of asexual reproduction.
2. SUMMARY OF THE INVENTION
The present invention relates to a new and distinct variety of
strawberry named `Driscoll Agoura`. The variety is botanically
identified as Fragaria.times.ananassa. The new variety is
distinguished from other varieties by a number of characteristics
as set forth in Tables 1-6.
3. COMPARISON TO SIMILAR VARIETIES
The varieties which we believe to be similar to `Driscoll Agoura`
from those known to us are `El Capitan` (U.S. Plant Pat. No. P.P.
14,005 P3), and `San Miguel` (U.S. Plant Pat. No. P.P. 10,642,
issued Oct. 13, 1998). There are several characteristics of the new
variety that are different from, or not possessed by `El Capitan`,
and `San Miguel`. The new variety has a weak vigor, obtuse to
slightly oblique terminal leaflet base, few stolons, dense stolon
pubescence, flat fruiting truss at first picking, strong unevenness
of fruit surface, and medium sweetness of the fruit.
`Driscoll Agoura` differs from its parent `61C117` (unpatented
Driscoll variety) in several characteristics, including, but not
limited to, having greater berry size and greater early season
production. `Driscoll Agoura` differs from its parent `19A268`
(unpatented Driscoll variety) in several characteristics,
including, but not limited to, having less creaing on the primary
berries.
4. BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying photographs show typical specimens of the new
variety, including fruit, foliage and flowers, in color as nearly
true as it is reasonably possible to make in color illustrations of
these characteristics. The plants of `Driscoll Agoura`
characterized in the botanical descriptions and depicted in the
figures were grown outdoors in an annular production system.
Measurements were taken during the spring in the second half of the
production season, approximately seven months after planting.
FIG. 1 shows leaves of the plant with three leaflets.
FIG. 2 shows leaves of the plant with four leaflets.
FIG. 3 shows the upper side and under side of the flowers.
FIG. 4 shows a close-up of the strawberry.
FIG. 5 shows the strawberry in longitudinal cross-section.
5. DESCRIPTION OF THE NEW VARIETY
The following detailed description of the new variety is based upon
observations taken of plants and fruit grown in Ventura County,
Calif., U.S.A. Observations of `Driscoll Agoura`, `El Capitan` and
`San Miguel` were taken in side by side comparison in 2002. 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. Colors are described and the most similar
color designations are provided from The Royal Horticultural
Society (R.H.S.) Colour Chart.
5.1 PROPAGATION
The new variety is principally propagated by way of stolons.
Although propagation by stolons is presently preferred, other known
methods of propagating strawberry plants may be employed.
5.2 CHARACTERISTICS OF THE NEW VARIETY
Information on the new variety is presented in Tables 1, 2 and 3.
In the tables, the flowers described are secondary flowers except
where indicated. The fruit described is the secondary fruit on one
year old plants. Fruit and flower measurements are an average of
both primary and secondary fruit and flowers. In particular, the
reproductive structures of `Driscoll Agoura` are fully self-fertile
and typical of the species. Anther color is yellow, 14A and
receptacle color is 9A yellow.
Table 1 provides information on the plant and fruit characteristics
of the new variety `Driscoll Agoura` compared with characteristics
of `El Capitan` and `San Miguel`. Table 2 provides additional
information of the plant and fruit characteristics of the new
variety `Driscoll Agoura` compared with characteristics of the
varieties `El Capitan` and `San Miguel`. Table 3 provides reactions
of the new variety to stresses as compared to the varieties `El
Capitan` and `San Miguel`. Tables 4 and 5 provide information of
the new variety's reaction to pests and diseases, respectively,
compared to the varieties `El Capitan` and `San Miguel`. Table 6
provides isozyme characteristics of the new variety as compared to
the varieties `El Capitan` and `San Miguel`.
TABLE 1 DETAILED COMPARISON OF `DRISCOLL AGOURA`, `EL CAPITAN` AND
`SAN MIGUEL` Driscoll Agoura El Capitan San Miguel Plant
Characteristics Height of Plant (cm) 19.1 25.9 23.3 Spread of Plant
(cm) 30.1 35.2 32.5 Number of Crowns 2.8 4.0 3.3 Leaf
Characteristics Terminal Leaflet Width (cm) 6.6 6.7 6.2 Terminal
Leaflet Length (cm) 6.0 5.7 6.6 Terminal Leaflet 1.10 1.17 0.94
Length/Width Ratio Number of Teeth/Terminal 22.0 17.1 23.3 Leaflet
Color of upper side of leaf dark green dark green medium to 147A
147A dark green 147A Color of under side of leaf light to light to
light to medium medium medium green 138B green 147C green 138B
Petiole Length (cm) 15.5 19.0 17.1 Petiole color 149A 149A 149A
Bract Frequency 25% 8% 8% typically typically typically single
single paired Stipule Length (cm) 3.3 3.8 3.3 Stipule Width (cm)
1.1 1.1 1.1 Flower Characteristics Petal Width (cm) 1.27 1.43 1.37
Petal Length (cm) 1.15 1.48 1.35 Petal Length/Width Ratio 1.10 0.97
1.01 Petal Color 155C 155C Flower Diameter (cm) 2.26 2.75 2.65
Calyx Diameter (cm) 3.44 3.75 2.90 Fruit Characteristics Fruit
Width (cm) 4.09 4.59 4.67 Fruit Length (cm) 3.97 4.01 4.18 Fruit
Length/Width Ratio 1.03 1.14 1.12 Average Berry Size (g) 25.7 23.0
24.0 Fruit Skin Color dark red 53A dark red 53A dark red 53A Fruit
Flesh Color orange red red 43A dark red 41A 45A Average % brix 7.92
7.68 7.24 Brix/Acid Ratio 10.12 9.70 9.51 Achene Coloration dark
red to dark red to dark red to yellow yellow green yellow green 59A
to 151A 60A to 151A 53A to 151B Total Yield (g/plant) 621 665
650
TABLE 2 CHARACTERISTICS OF `DRISCOLL AGOURA`, `EL CAPITAN` AND `SAN
MIGUEL` Driscoll Agoura El Capitan San Miguel Plant Habit flat
globose globose flat globose Density open medium dense open Vigor
weak medium medium Leaf Shape in cross slightly slightly concave
section concave to flat concave Interveinal strong strong strong
blistering Glossiness medium strong strong Number of more than 3
three only three only leaflets leaflets on approx. 17% of leaves
Terminal leaflet flat flat flat to revolute margin profile Terminal
leaflet obtuse to rounded rounded shape of base slightly oblique
Terminal leaflet rounded obtuse rounded shape of teeth Stipule
sparse sparse to sparse pubescence medium Petiole dense dense
sparse to pubescence medium Petiole pose outwards outward to
outward of hairs downward Stolon Number few many many Anthocyanin
weak to medium to weak to coloration medium strong medium Thickness
medium thick thin thin to medium Pubescence dense sparse to sparse
to medium medium Inflorescence Position relative above above above
to foliage Diameter of larger larger larger calyx relative to
corolla Diameter of same size smaller to same size inner calyx same
size relative to outer Spacing of petals overlapping overlapping
overlapping Fruiting Truss Attitude at first Flat prostrate
prostrate picking Average Length 12.3 18.4 17.4 (cm) Fruit
Predominant wedged to cordate conical to shape cordate cylindrical
Difference in marked, marked moderate shapes between primaries are
primary and more creased secondary fruits Bands without very narrow
very narrow very narrow achenes Unevenness of strong weak to weak
to surface medium medium Evenness of slightly slightly even color
uneven uneven to even Glossiness strong strong medium Insertion of
level with below to level below surface achenes surface with the
surface Insertion of set above fruit in a basin to set above calyx
level Pose of the calyx reflexed reflexed spreading to segments
reflexed Size of calyx in smaller to larger same size relation to
fruit same size Adherence of weak to strong strong calyx medium
Firmness of flesh firm firm firm Evenness of slightly even even
flesh color uneven Distribution of marginal and marginal and
marginal and flesh color central central central Hollow center
medium large medium size Sweetness medium strong strong Texture
when medium fine fine tasted Acidity medium medium medium Time of
mid-December mid-December early-January Flowering Harvest Interval
late-January to late-January to early-February mid-June mid-June to
mid-June Type of Bearing partially partially partially everbearing
everbearing everbearing
5.3 REACTION TO STRESS
TABLE 3 Driscoll Agoura El Capitan San Miguel Reaction to Stress
high pH moderately moderately moderately resistant resistant
resistant high soil salt levels moderately moderately moderately
resistant resistant resistant
5.4 PEST AND DISEASE RESISTANCE AND SUSCEPTIBILITY
TABLE 4 Driscoll Agoura El Capitan San Miguel Reaction to Pests
Tetranychus urticae moderately moderately moderately resistant
resistant resistant Lygus hesperus susceptible susceptible
susceptible
TABLE 5 Driscoll Agoura El Capitan San Miguel Reaction to Diseases
Botrytis fruit rot moderately moderately moderately susceptible
susceptible susceptible Powdery mildew moderately moderately
moderately resistant resistant resistant Verticillium wilt
susceptible susceptible susceptible Strawberry Mottle moderately
moderately moderately resistant Virus resistant resistant
Xanthomonas moderately moderately moderately fragariae susceptible
susceptible susceptible
5.5 ISOZYME ANALYSIS
In addition to the morphological description above, the new
cultivar `Driscoll Agoura` has been analyzed to obtain an
indication of its genetic makeup to provide further means for
identifying the new variety and distinguishing it from some other
somewhat similar and/or related strawberry varieties. Specifically,
leaf samples of `Driscoll Agoura`, `El Capitan` and `San Miguel`
were analyzed by electrophoresis for isozyme patterns of the
enzymes phosphoglucoisomeras (PGI), lecuine aminopeptidase (LAP)
and phosphoglucomutase (PGM). See J. Amer. Soc. Hort. Sci.
106:684-687. Isozyme characterization of the three varieties is
presented in Table 4, with the letters representing the banding
patterns for each enzyme as designated in the above-identified
article.
TABLE 6 ISOZYME ANALYSIS FOR `DRISCOLL AGOURA`, `EL CAPITAN` AND
`SAN MIGUEL` Driscoll Locus Agoura El Capitan San Miguel PGI A4 A4
A2 LAP B3 B3 B3 PGM C2 C2 C4
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