U.S. patent number PP21,538 [Application Number 12/587,284] was granted by the patent office on 2010-11-30 for strawberry plant named `drisstrawtwelve`.
This patent grant is currently assigned to Driscoll Strawberry Associates, Inc.. Invention is credited to Kristie L. Gilford, Bruce D. Mowrey, Esther J. Pullen, Philip J. Stewart.
United States Patent |
PP21,538 |
Gilford , et al. |
November 30, 2010 |
Strawberry plant named `DrisStrawTwelve`
Abstract
This invention relates to a new and distinct variety of
strawberry plant named `DrisStrawTwelve.` The new variety is
primarily characterized by having high fruit yield and moderate
resistance to Botrytis fruit rot, powdery mildew, Xanthomonas
fragariae and high temperatures.
Inventors: |
Gilford; Kristie L. (Lake
Placid, FL), Pullen; Esther J. (Valrico, FL), Mowrey;
Bruce D. (Watsonville, CA), Stewart; Philip J.
(Watsonville, CA) |
Assignee: |
Driscoll Strawberry Associates,
Inc. (Watsonville, CA)
|
Family
ID: |
43215758 |
Appl.
No.: |
12/587,284 |
Filed: |
October 5, 2009 |
Current U.S.
Class: |
PLT/209 |
Current CPC
Class: |
A01H
6/7409 (20180501); A01H 5/08 (20130101) |
Current International
Class: |
A01H
5/00 (20060101) |
Field of
Search: |
;PLT/209 |
Primary Examiner: Hwu; June
Attorney, Agent or Firm: Jondle & Associates, P.C.
Claims
We claim:
1. A new and distinct variety of strawberry plant as described and
shown herein.
Description
Genus and species: Fragaria.times.ananassa.
Variety denomination: `DrisStrawTwelve`.
BACKGROUND OF THE NEW PLANT
The present invention relates to a new and distinct strawberry
cultivar designated `DrisStrawTwelve` and botanically known as
Fragaria.times.ananassa. This new strawberry cultivar was
discovered in Hillsborough, Fla. in December 2004 and originated
from a cross between `Driscoll Sanibel` (U.S. Plant Pat. No.
16,298) and `Driscoll Bonaire` (U.S. Plant Pat. No. 18,041). The
original seedling of the new cultivar was first asexually
propagated at a nursery in Shasta County, Calif.
`DrisStrawTwelve` was subsequently asexually propagated in Shasta
County, Calif. and underwent further testing 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 fruit in longitudinal cross-section.
FIG. 4 shows the whole fruit.
FIG. 5 shows both the upper surface and lower surface of several of
the flowers.
DESCRIPTION OF THE NEW CULTIVAR
The following description of `DrisStrawTwelve` is based on
observations taken in Hillsborough, Fla. from 2005 to 2008. 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. `DrisStrawTwelve` has not been observed under
all possible environmental conditions. The botanical description of
`DrisStrawTwelve` was taken from 5-month-old plants and the
botanical descriptions of the comparison varieties, `Driscoll
Atlantis` (U.S. Plant Pat. No. 16,475) and `Driscoll Sanibel` (U.S.
Plant Pat. No. 16,298), were also 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` and
`Driscoll Sanibel.` Plant characteristics include plant habit,
terminal leaflet length, time of flowering, and fruit
production.
TABLE-US-00001 TABLE 1 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Plant habit Flat Flat globose
Flat Terminal leaflet 0.67 cm 0.73 cm 0.80 cm length Time of
Between early Between very flowering and medium early and early
Medium Fruit production, grams/plant 604 405 420
Table 2 shows plant characteristics of the new variety compared
with plant characteristics of the commercial varieties `Driscoll
Atlantis` and `Driscoll Sanibel.` Plant characteristics include
plant height, diameter, number of crowns per plant, habit, the
density of individual plants and the vigor.
TABLE-US-00002 TABLE 2 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Plant height (cm) 17.5 18.8
16.0 Plant diameter (cm) 42.4 40.2 39.6 Number of 3 3 2
crowns/plant Habit Flat Flat globose Flat Density of Medium Medium
Medium individual plant Vigor Between medium Between weak Between
and strong and medium medium and 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 upper side 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, overall leaf shape and shape of leaf
apex and base.
TABLE-US-00003 TABLE 3 `Driscoll `Driscoll Leaf Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Terminal leaflet 0.67 0.73
0.80 length (cm) Terminal leaflet 0.69 0.75 0.81 width (cm)
Terminal leaflet 1.0 1.0 1.0 length/width ratio No. teeth/terminal
25 23 20 leaflet Shape of teeth Rounded Rounded Rounded Color of
upper RHS 147A (Dark RHS 147B RHS 147A surface of leaf yellow-
green) (Dark green) (Dark yellow- green) Color of lower RHS 148C
(Light RHS 148C RHS 148C surface of leaf yellow-green) (Light
(Light yellow- yellow-green) green) Leaf shape in Slightly convex
Flat Slightly cross section convex Leaf blistering Medium Medium
Medium Leaf glossiness Weak Medium Medium No. leaflets 3 only More
than 3 3 only Terminal leaflet Revolute Flat Revolute margin
profile Terminal leaflet: As long as broad As long As long as
length/width ratio as broad broad Terminal leaflet Orbicular
Orbicular Orbicular shape Terminal leaflet Rounded Rounded Rounded
base shape Terminal leaflet Rounded Rounded Rounded apex 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, stipule pubescence and
stipule anthocyanin coloration.
TABLE-US-00004 TABLE 4 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Petiole length (cm) 10.0 9.9
11.1 Petiole 0.163 0.332 0.320 diameter (cm) Petiole pubescence
Dense Medium Dense Petiole pose Upwards and Outwards Outwards of
hairs outwards Petiole color RHS 145C (Light RHS 145A RHS 145C
yellow-green) (Light (Light yellow- yellow- green) green) Petiolule
color RHS 145C (Light RHS 145B RHS 145C yellow-green) (Light (Light
yellow- yellow- green) green) Petiolule 1.208 1.023 1.033 length
(cm) Petiolule 0.060 0.178 0.182 diameter (cm) Bract frequency 1 2
1 Stipule length (cm) 3.0 3.3 3.0 Stipule width (cm) 0.783 1.048
0.968 Stipule pubescence Medium Medium Dense Stipule RHS 145D
(Light Between anthocyanin yellow-green) weak and coloration
medium
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-US-00005 TABLE 5 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Stolon Number Medium Average
number 30 53 52 of daughter plants Stolon RHS 60B (Dark RHS 60A
(Dark RHS 53A Anthocyanin red-purple) red-purple) (Dark red) 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,
time of flowering, 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-US-00006 TABLE 6 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Inflorescence Beneath Level
with Beneath position relative to foliage Time of flowering Between
early and Between Medium (50% of plants medium very early at first
flower) and early Flower size Medium Medium Large Flower diameter
2.457 3.019 3.147 (cm) Petal shape Orbicular Orbicular Orbicular
Petal spacing Overlapping Overlapping Overlapping Petal apex shape
Rounded Rounded Rounded Petal margin Entire Entire Entire Petal
base shape Rounded Rounded Rounded Petal length (cm) 1.135 1.317
1.562 Petal width (cm) 1.136 1.460 1.492 Petal length/width As long
as broad Broader As long ratio than long as broad Typical and 6 6 7
observed petal number Petal color RHS 155B RHS 155B RHS 155B
(White) (White) (White) Calyx diameter 2.902 3.064 4.834 (cm) Calyx
diameter Smaller to same Same size Larger relative to corolla size
Inner calyx Same size Same size Same size diameter relative to
outer Sepal shape Elliptical Elliptical Elliptical Sepal apex shape
Truncate Truncate Truncate Sepal margin Entire Entire Entire Sepal
length (cm) 1.001 1.131 1.661 Sepal width (cm) 0.514 0.546 0.785
Typical and 12 12 14 observed sepal number Receptacle color RHS
154B (Light RHS 2A RHS 150A yellow-green) (Medium (Light yellow-
yellow) green) Anther color RHS 15A RHS 17B RHS 15A (Medium (Dark
yellow- (Medium yellow-orange) orange) yellow-orange)
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 hollow length to width
ratio, 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) and
the number of achenes per berry.
TABLE-US-00007 TABLE 7 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Fruiting truss length 16.6
21.8 14.2 (cm) Fruiting truss length- Medium Long Medium general
Fruiting truss 0.267 0.282 0.285 diameter (cm) at base of truss
Number of berries 1 2 1 per fruiting truss Fruiting truss attitude
Prostrate Semi-erect Prostrate Fruiting truss color RHS 144B RHS
144B RHS 144B at base of truss (Medium (Medium (Medium
yellow-green) yellow-green) yellow- green) Fruit length (cm) 5.904
4.836 4.667 Fruit width (cm) 4.490 3.895 4.261 Fruit length/width
1.3 1.2 1.1 ratio Fruit hollow length 2.359 1.689 0.672 (cm) Fruit
hollow width 0.823 0.708 0.269 (cm) Fruit hollow 2.9 2.4 2.5
length/width ratio Fruit weight (g) 37.9 27.3 39.0 Relative fruit
size Large Medium Medium Predominant fruit Conical to Conical
Conical shape bi-conical Difference in shape None or very Moderate
Marked between primary & slight secondary fruits Band without
Medium Medium Narrow achenes Unevenness of fruit Medium Medium
Strong surface Fruit skin color RHS 185A RHS 45A RHS 46A (Dark
purple-red) (Medium red) (Dark red) Evenness of fruit Slightly
uneven Even Even color Fruit glossiness Medium Medium Between
medium and strong Insertion of achenes Below surface Below surface
Above surface Achene coloration- RHS 184B RHS 181C RHS 184B sunward
side of berry (Medium (Medium (Medium greyed-purple) greyed-red)
greyed- purple) Achene coloration- RHS 151C (Light RHS 151B RHS
151C shaded side of berry yellow-green) (Light yellow- (Light
green) yellow- green) Achenes per berry 104 114 228
Table 8 shows fruit characteristics of the new cultivar compared to
`Driscoll Atlantis` and `Driscoll Sanibel.` These characteristics
include the harvest maturity, 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, type of
bearing, grams of fruit per plant.
TABLE-US-00008 TABLE 8 `Driscoll `Driscoll Characteristic
`DrisStrawTwelve` Atlantis` Sanibel` Harvest maturity Mid-December
to Early Mid- early April December December to to March early April
Insertion of calyx Set above fruit Level Level Pose of calyx
Spreading to Reflexed Reflexed segments reflexed Size of calyx in
From same size to Same size From same relation to fruit larger size
to larger Adherence of calyx Strong Strong Strong Firmness of flesh
Firm Firm Medium Color of the flesh RHS 155B (White) RHS 155D RHS
155B and RHS 42B (White) and (White) and (Medium Red) RHS 40A RHS
42A (Medium red) (Medium red) Evenness of flesh Even Even Even
color Distribution of Marginal and Marginal and Marginal and flesh
color central central central Hollow center Small Small Absent to
small Sweetness Medium Medium Between medium and strong Acidity
Weak Weak Medium Texture when tasted Fine Medium Medium Type of
bearing Partially Partially Not everbearing everbearing everbearing
Grams of fruit/plant 604 405 420
Table 9 shows pest, stress and disease characteristics of the new
cultivar compared to `Driscoll Atlantis` and `Driscoll
Sanibel`.
TABLE-US-00009 TABLE 9 Pest, Stress `Driscoll `Driscoll or Disease
`DrisStrawTwelve` Atlantis` Sanibel` Botrytis fruit rot Moderately
resistant Susceptible Susceptible Powdery mildew Moderately
resistant Susceptible Susceptible Xanthomonas Moderately resistant
Between resistant Between fragariae and moderately resistant and
resistant moderately resistant High temperatures Moderately
resistant Moderately Resistant resistant
COMPARISON WITH PARENTAL AND COMMERCIAL CULTIVARS
When `DrisStrawTwelve` is compared to the female parent `Driscoll
Sanibel` (U.S. Plant Pat. No. 16,298), `DrisStrawTwelve` has
greater fruit production, larger fruit and fewer daughter plants
than does `Driscoll Sanibel.` In addition, `DrisStrawTwelve` has
moderate resistance to Botrytis fruit rot and powdery mildew while
`Driscoll Sanibel` is susceptible to both diseases.
When `DrisStrawTwelve` is compared to the male parent `Driscoll
Bonaire` (U.S. Plant Pat. No. 18,041), `DrisStrawTwelve` is a
taller plant with dark yellow-green leaves than `Driscoll Bonaire`
which has medium green leaves. In addition, `DrisStrawTwelve`
produces more fruit than `Driscoll Bonaire` although
`DrisStrawTwelve` has fewer daughter plants. `DrisStrawTwelve` is
also moderately resistant to Botrytis fruit rot while `Driscoll
Bonaire` is susceptible; `DrisStrawTwelve` is moderately resistant
to powdery mildew and Xanthomonas fargariae while `Driscoll
Bonaire` is moderately susceptible to both diseases.
* * * * *