U.S. patent number PP15,308 [Application Number 10/619,692] was granted by the patent office on 2004-11-09 for strawberry plant named `driscoll coronation`.
This patent grant is currently assigned to Driscoll Strawberry Associates, Inc.. Invention is credited to Joseph T. DeRuse, Bruce D. Mowrey, Thomas M. Sjulin.
United States Patent |
PP15,308 |
Sjulin , et al. |
November 9, 2004 |
Strawberry plant named `Driscoll Coronation`
Abstract
This invention relates to a new and distinct variety of
strawberry named `Driscoll Coronation.` The variety is similar to
the varieties `Driscoll Camarillo` and `Driscoll Jubilee.` The
variety is distinguished from `Driscoll Camarillo` and `Driscoll
Jubilee`, in particular, by a whitish internal fruit color, a flat
habit, a strong leaf glossiness, inflorescence level in relation to
the foliage, weak fruit acidity, and medium adherence of fruit to
the clayx.
Inventors: |
Sjulin; Thomas M. (Aromas,
CA), DeRuse; Joseph T. (Almeria, ES), Mowrey;
Bruce D. (Watsonville, CA) |
Assignee: |
Driscoll Strawberry Associates,
Inc. (Watsonville, CA)
|
Family
ID: |
33311084 |
Appl.
No.: |
10/619,692 |
Filed: |
July 15, 2003 |
Current U.S.
Class: |
PLT/209 |
Current CPC
Class: |
A01H
6/7409 (20180501); A01H 5/08 (20130101) |
Current International
Class: |
A01H 005/00 () |
Field of
Search: |
;PLT/209,208 |
Primary Examiner: Grunberg; Anne Marie
Assistant Examiner: Hwu; June
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.
Variety denomination: The strawberry variety denomination is
`Driscoll Coronation`.
1. BACKGROUND OF THE INVENTION
The new variety originated as a result of a controlled cross
between the strawberry plants `Marathon` (U.S. Plant Pat. No.
PP12,817) and `38A237` (unpatented variety) in an ongoing breeding
program, and was discovered as a seedling in Kent, England in 1999.
The original seedling of the new cultivar was asexually propagated
by stolons in a Nursery in Kent, England. Propagules were
transplanted to a controlled breeding plot in Monterey. Calif,
where the variety was identified and selected for further
evaluation. `Driscoll Coronation` was subsequent asexually
propagated and underwent further testing in Monterey, Calif. for
one year. 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
generation of asexual reproduction.
2. SUMMARY OF THE INVENTION
The present invention relates to a new and distinct variety of
strawberry named `Driscoll Coronation.` 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 1-4.
3. COMPARISON TO SIMILAR VARIETIES
The varieties which we believe to be similar to `Driscoll
Coronation` from those known to us are `Driscoll Camarillo` (U.S.
Plant Pat. No. 04,771) and `Driscoll Jubilee` (U.S. Plant patent
application Ser. No. 10/619,689). There are several characteristics
of the new variety that are different from, or not possessed by
`Driscoll Camarillo` and `Driscoll Jubilee.` The new variety is
distinguished from `Driscoll Camarillo` and `Driscoll Jubilee` by
having a flat habit, a strong leaf glossiness, inflorescence level
in relation to the foliage, weak fruit acidity, and medium
adherence of fruit to the calyx. The internal fruit color of
`Driscoll Coronation` is whitish. In contrast, the internal fruit
color of `Driscoll Camarillo` and `Driscoll Jubilee` comprises a
white color interspersed in a striped manner among the orange-red
or red color described for each variety. Each color described for
the internal fruit color of `Driscoll Camarillo` and `Driscoll
Jubilee` is individually present in the internal fruit tissues.
`Driscoll Coronation` is distinguished from its maternal parent
`Marathon` by its smaller fruit size, lighter internal color, and
its fully everbearing habit. `Driscoll Coronation` is distinguished
from its paternal parent `38A237` by its larger average fruit size,
paler internal fruit color, and broader fruit shape.
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.
FIG. 1 shows the whole the plant.
FIG. 2 shows the upper side of the leaves of the plant
FIG. 3 shows the under side and underside of the flowers.
FIG. 4 shows the fruit in longitudinal cross-section.
FIG. 5 shows a close-up of the fruit.
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 Monterey County,
Calif., U.S.A. This description is in accordance with UPOV
terminology. Observations of Driscoll Coronation, `Driscoll
Camarillo,` and `Driscoll Jubilee` were taken in side by side
comparison in the year 2002. Plants for observation were harvested
from a low elevation nursery in Tehama County, Calif. in December
2001, and held in refrigerated storage until planting in Monterey
County in March 2002. Plants were grown in raised beds of soil
under conditions typical of commercial strawberry production along
the central coat of California. Fruits were harvested twice weekly
for yield determination from May to October 2002. Measurements of
plant, flower, and fruit characteristics were made in August 2002,
approximately 5 months after planting. Color designations, color
descriptions, and other phenotypical descriptions may deviate from
the state 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, 3 and
4. In the tables, the flowers described are secondary flowers
except where indicated. The fruit described is the secondary fruit
on five month old plants. Fruit and flower measurements are an
average of both primary and secondary fruit and flowers.
Table 1 provides information on the plant and fruit characteristics
of the new variety `Driscoll Coronation` compared with
characteristics of `Driscoll Camarillo` and `Driscoll Jubilee.`
Table 2 provides additional information of the plant and fruit
characteristics of the new variety `Driscoll Coronation` compared
with characteristics of the varieties `Driscoll Camarillo` and
`Driscoll Jubilee.` Table 3 provides reactions of the new variety
to stresses, pests and diseases compared with reactions of the
varieties `Driscoll Camarillo` and `Driscoll Jubilee.` Table 4
provides isozyme characteristics of the new variety as compared to
that of the varieties `Driscoll Camarillo` and `Driscoll
Jubilee.`
TABLE 1 QUANTITATIVE COMPARISON OF `DRISCOLL CORONATION`, `DRISCOLL
CAMARILLO,` AND `DRISCOLL JUBILEE` `Driscoll `Driscoll `Driscoll
Coronation` Camarillo` Jubilee` Plant Characteristics Height of
plant (cm) 17.0 20.5 18.3 Spread of plant (cm) 33.2 39.4 30.7
Number of crowns 3.7 3.0 3.5 Leaf Characteristics Terminal leaflet
length (cm) 7.9 8.4 6.9 Terminal leaflet width (cm) 7.4 8.5 6.7
Terminal leaflet length/width 1.07 0.99 1.04 ratio # Teeth/terminal
leaflet 24.3 27.0 20.1 Color of upper side 147A 147A 147A dark
green dark green dark green Color of under side 139C 147C 138B
light to light green light to medium medium green green Petiole
length (cm) 16.2 16.8 15.8 Petiole color 145A 145A 145A Bract
frequency 25% 67% 42% typically typically typically double double
double Stipule length (cm) 3.3 4.0 3.1 Stipule width (cm) 0.8 1.0
1.0 Flower Characteristics Petal length (cm) 0.96 1.13 1.12 Petal
width (cm) 0.93 1.29 1.17 Petal length/width Ratio 1.03 0.88 0.96
Flower diameter (cm) 2.55 3.17 2.92 Calyx diameter (cm) 2.51 3.09
2.65 Average Fruiting truss length 24.2 33.2 27.7 (cm) Petal color
(cm) 155C 155C 155C Fruit Characteristics Fruit length (cm) 3.9 3.8
3.8 Fruit width (cm) 3.9 3.9 3.4 Fruit length/width Ratio 0.99 0.97
1.10 Average berry weight (g) 20.0 20.7 19.8 External color 45B 42A
45A red red red Internal color 159D 33A-155C 43A-155B whitish
orange red red and and white white Achene coloration 184A to 8B
184B to 184A to 4B 4A Yield (g/plant) 850 1200 600
TABLE 2 QUALITATIVE COMPARISON OF `DRISCOLL CORONATION`, `DRISCOLL
CAMARILLO,` AND `DRISCOLL JUBILEE` `Driscoll `Driscoll `Driscoll
Coronation` Camarillo` Jubilee` Plant Habit flat flat globose flat
globose Density open open open to medium Vigor weak to medium to
weak to medium strong medium Leaf Shape in cross section slightly
concave slightly concave concave to flat to flat Interveinal
blistering medium strong strong Glossiness strong medium to medium
strong Number of leaflets three only three only three only Terminal
leaflet margin revolute revolute revolute profile Terminal leaflet
shape of base obtuse rounded acute Terminal leaflet shape of teeth
obtuse rounded Rounded Stipule pubescence sparse medium sparse to
medium Petiole pubescence very sparse sparse very sparse to sparse
Petiole pose of hairs outwards upwards to outwards to outward
downwards Stolon Amount few to medium Medium medium Anthocyanin
coloration medium medium Medium Thickness medium thick thin to
medium Pubescence medium medium sparse to medium Inflorescence
Position relative to foliage level above beneath Diameter of calyx
relative to smaller to smaller to smaller to corolla on secondary
flowers same size same size same size Diameter of inner calyx
smaller same size smaller relative to outer on secondary flowers
Spacing of petals touching overlapping touching to overlapping
Fruiting Truss Attitude at first picking prostrate semi-erect to
semi-erect prostrate Fruit Predominant shape chordate chordate
conical Difference in shapes between slight to slight to very
slight primary and secondary fruits moderate moderate to slight
Band without achenes very narrow very narrow very narrow Unevenness
of surface very weak to weak to very weak weak medium Evenness of
color uneven slightly Even slightly uneven to uneven even
Glossiness strong Strong strong Insertion of achenes level below to
level to level above Insertion of calyx in a basin in a basin in a
basin to level Pose of the calyx segments spreading spreading to
spreading reflexed Size of calyx in relation to same size to
Smaller smaller to fruit on secondary fruit larger same size
Adherence of calyx medium strong strong Firmness of flesh medium
firm medium to firm Evenness of flesh color even slightly slightly
uneven uneven Distribution of flesh color central marginal and
marginal and central central Hollow center size small to absent to
absent to medium small small Sweetness strong medium medium to
strong Texture when tasted fine medium medium Acidity weak Medium
medium Time of Flowering medium medium medium Type of Bearing fully
fully fully everbearing everbearing everbearing
5.3 REACTION TO STRESS, PESTS, AND DISEASE
TABLE 3 REACTIONS TO STRESS PESTS AND DISEASES FOR `DRISCOLL
CORONATION`, `DRISCOLL CAMARILLO,` AND `DRISCOLL JUBILEE` `Driscoll
`Driscoll `Driscoll Coronation` Camarillo` Jubilee` Reaction to
Stress high pH moderately moderately moderately resistant resistant
resistant high soil salt levels moderately moderately moderately
susceptible resistant susceptible Reaction to Pests Tetranychus
urticae moderately moderately moderately susceptible susceptible
susceptible Lygus hesperus susceptible susceptible susceptible
Reaction To Diseases Botrytis fruit rot moderately moderately
moderately susceptible to susceptible to susceptible to moderately
moderately moderately resistant resistant resistant Powdery mildew
moderately susceptible to susceptible susceptible highly
susceptible Verticillium wilt moderately moderately moderately
susceptible susceptible resistant
5.4 ISOZYME ANALYSIS
In addition to the morphological description above, the new
cultivar `Driscoll Coronation` has been analyzed to obtain an
indication of its genetic makeup to provide further means for
identifying the new variety and distinguishing it from other
somewhat similar and/or related strawberry varieties. Specifically,
leaf samples of `Driscoll Coronation`, `Driscoll Camarillo` and
`Driscoll Jubilee` were analyzed by electrophoresis for isozyme
patterns of the enzymes phosphoglucoisomerase ("PGI"), leucine
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 4 ISOZYME ANALYSIS FOR `DRISCOLL CORONATION`, `DRISCOLL
CAMARILLO,` AND `DRISCOLL JUBILEE` `Driscoll `Driscoll `Driscoll
Locus Camarillo` Coronation` Jubilee` PGI A2 A3 A1 LAP B3 B3 B3 PGM
C4 C4 C4
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