Strawberry plant named ‘PS-1.125’

Information

  • Patent Grant
  • PP23290
  • Patent Number
    PP23,290
  • Date Filed
    Wednesday, September 14, 2011
    13 years ago
  • Date Issued
    Tuesday, January 1, 2013
    12 years ago
  • US Classifications
    Field of Search
    • US
    • PLT 208000
  • International Classifications
    • A01H5/00
Abstract
This invention relates to a new and distinct variety of strawberry plant named ‘PS-1.125’. This new strawberry plant named ‘PS-1.125’ is primarily adapted to the growing conditions of the central coast of California, and is primarily characterized by its medium red skin color, conical fruit shape, very good fruit flavor, early fruit ripening, medium to large plant, and long fruiting truss.
Description

Latin name of the genus and species of the plant claimed: Fragaria ananassa.


Variety denomination: ‘PS-1.125’.


BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct strawberry variety named ‘PS-1.125’. This new variety is a result of a controlled cross made in 2001 in an ongoing breeding program between strawberry variety designated ‘PS-3523’ (patented, U.S. Plant Pat. No. 14,447) and strawberry variety designated ‘PS-4634’ (patented, U.S. Plant Pat. No. 17,487). Due to the combining of the reciprocal seed lots, it is unknown as to which parent variety is the seed parent and which parent variety is the pollen parent. The variety is botanically known as Fragaria ananassa.


The seedling resulting from the aforementioned cross was selected from a controlled breeding plot in Monterey County, Calif. in the summer of 2003. After its selection, the new variety was asexually propagated by stolons in both San Joaquin County, Calif. and Siskiyou County, Calif. The new variety was extensively tested over the next several years in fruiting fields in Monterey County, Calif. This propagation has demonstrated that the combination of traits disclosed herein as characterizing the new variety are fixed and remain true to type through successive generations of asexual reproduction.


BRIEF SUMMARY OF THE INVENTION

‘PS-1.125’ is primarily adapted to the climate and growing conditions of the central coast of California. The nearby Pacific Ocean provides the needed humidity and moderate temperatures to produce a strong vigorous plant and maintain fruit quality during the April through November production months.


The following traits have been repeatedly observed and are determined to be unique characteristics of ‘PS-1.125’, which in combination distinguish this strawberry plant as a new and distinct variety:

    • 1. Medium red skin color;
    • 2. Conical fruit shape;
    • 3. Very good fruit flavor;
    • 4. Early fruit ripening;
    • 5. Medium to large plant; and
    • 6. Long fruiting truss.


The strawberry variety that is believed to be most closely related to the new variety ‘PS-1.125’ is ‘PS-4634’ (patented, U.S. Plant Pat. No. 17,487). In side-by-side comparisons to the similar strawberry variety ‘PS-4634’, ‘PS-1.125’ differs by the following combination of characteristics as described in Table 1.









TABLE 1







COMPARISON TO THE STANDARD VARIETY











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Fruit color
Red
Ranges from orange red to




red


Fruit size
Medium
Ranges from large to very




large


Difference in shape
Slight
Moderate


between primary




and secondary fruit




Expression of hollow
Moderate
Strong


core




Position of fruiting
Ranges from level
Level with the foliage


truss relative to
with to above the



foliage
foliage



Petal shape
Longer than broad
As long as broad


Size of inner calyx
Ranges from same
Ranges from same size to


relative to outer calyx
size to smaller
larger









For identification, a series of molecular markers have been determined for this new variety.


‘PS-1.125’ differs from its parents, ‘PS-3523’ and ‘PS-4634’ by the following combination of characteristics as described in Table 2.









TABLE 2







COMPARISON TO THE PARENT VARIETIES












‘PS-3523’
‘PS-4634’




(U.S. Plant Pat.
(U.S. Plant Pat.


Characteristic
‘PS-1.125’
No. 14,447)
No. 17,487)





Fruit color
Red
Ranges from
Ranges from




orange red to red
orange red to red


Average
1,829 grams/plant
1,577 grams/plant
1,689


marketable yield


grams/plant


Position of
Ranges from level
Above
Level with


inflorescence
with to above




relative to foliage





Difference in
Slight
Ranges from
Moderate


shape between

moderate to



primary and

marked



secondary fruit












BRIEF DESCRIPTIONS OF THE PHOTOGRAPHS

The accompanying color photographs illustrate the overall appearance of typical specimens of the new strawberry variety ‘PS-1.125’, at various stages of development as true as it is reasonably possible with color reproductions of this type. Color in the photographs may differ slightly from the color value cited in the botanical descriptions which accurately describe the color of ‘PS-1.125’. The depicted plant and plant parts of the new strawberry variety ‘PS-1.125’ are between eight and nine months old. The photographs were taken in Monterey County, Calif.:



FIG. 1 shows typical fruiting field characteristics of ‘PS-1.125’, taken in the month of July 2011;



FIG. 2 shows a close-up view of the typical leaf structure of ‘PS-1.125’, taken in the month of July 2011;



FIG. 3 shows typical mature and immature field fruit of ‘PS-1.125’, taken in the month of July 2011; and



FIG. 4 shows typical internal and external mature fruit characteristics of ‘PS-1.125’, taken in the month of August 2011.





DETAILED BOTANICAL DESCRIPTION

The new variety ‘PS-1.125’ has not been observed under all possible environmental conditions. The characteristics of the new variety ‘PS-1.125’ may vary in detail, depending upon variations in environmental factors, including weather (temperature, humidity and light intensity), day length, soil type and location. In addition, the characteristics of any parental variety or comparison variety included in Tables 1-9 of the present invention may vary in detail, depending upon variations in environmental factors, including weather (temperature, humidity and light intensity), day length, soil type and location.


The aforementioned photographs, together with the following description of the new variety ‘PS-1.125’, unless otherwise noted, are based on observations taken during the 2011growing season in Monterey County, Calif. These measurements and ratings were taken from plants of ‘PS-1.125’ dug from a high-elevation nursery located in Siskiyou County, Calif. during mid October 2010 and planted between two and three weeks later in Monterey County, Calif. The approximate age of the observed plants is between eight and nine months. Yield observations and fruit quality characteristics are averaged from three years of data collected from the 2008 through 2010 growing seasons. Flower measurements and characteristics are from secondary flowers unless otherwise noted. Fruit characteristics and measurements are from secondary fruit unless otherwise noted.


Color terminology where noted follows The Royal Horticultural Society Colour Chart, London (2007).


The following tables 3 through 9 describe fruit, plant, stolon, foliage, fruiting truss, flower and pest disease characteristics of the new strawberry ‘PS-1.125’ in comparison to the similar strawberry variety ‘PS-4634’.









TABLE 3







FRUIT CHARACTERISTICS











‘PS-4634’




(U.S. Plant


Characteristic
‘PS-1.125’
Pat. No. 17,487)





Color of mature fruit
RHS 45A
RHS 45B



Red
Ranges from orange red




to red


Color of internal flesh
RHS 44C
RHS 44C



Ranges from light red
Ranges from light red



to medium red
to medium red


Fruit length (cm)
4.0
4.3


Fruit width (cm)
3.7
3.9


Fruit size
Medium
Ranges from large to




very large


Fruit length/width ratio
1.09
1.11



Ranges from as long as
Slightly longer than



broad to slightly longer
broad



than broad



Calyx diameter (cm)
3.6
4.0


Average fruit weight
25.5
27.7


(gm)




Achene color, shaded
RHS 160B
RHS 162C


side
Greyed yellow group
Greyed yellow group


Achene color, sun-
RHS 185A
RHS 184C


exposed side
Greyed purple group
Greyed purple group


Achenes per berry
441
437


Achene weight (mg)
0.53
0.40


Marketable fruit yield
1,829
1,689


(gm/plant)




Predominant fruit shape
Conical
Conical


Difference in shape
Slight
Moderate


between primary and




secondary fruit




Band without achenes
Narrow
Narrow


Unevenness of fruit
Weak
Weak


surface




Evenness of fruit color
Slightly uneven
Ranges from slightly




uneven to even


Fruit glossiness
Strong
Strong


Insertion of achenes
Level with surface
Level with surface


Insertion of calyx
in basin
Ranges from in basin to




level


Attitude of calyx
Ranges from spreading
Ranges from spreading



to reflexed
to reflexed


Size of calyx in relation
Same size
Same size


to fruit diameter




Adherence of calyx
Strong
Strong


Firmness of fruit skin
Strong
Strong


Firmness of fruit flesh
Ranges from medium to
Medium



firm



Keeping quality
Good
Very good


Distribution of red
Marginal and central
Marginal and central


color of the flesh




Hollow center
Moderate
Strong


expression




Fruit flavor
Ranges from very good
Very good



to good



Soluble solids (% brix)
8.0
8.3


Time of first flowering
Early
Early


Time of first harvesting
Early
Early


Harvest period
Late March to
Late March to



November
November


Type of bearing
June bearing
June bearing
















TABLE 4







PLANT CHARACTERISTICS











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Plant height (cm)
28.9
28.8


Plant spread (cm)
36.3
39.1


Plant size
Ranges from large to
Large



medium



Plant habit
Globose
Globose


Plant density
Medium
Medium


Plant vigor
Strong
Strong
















TABLE 5







STOLON CHARACTERISTICS











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Stolon color
RHS 146C
RHS 146D



Yellow green group
Yellow green group


Stolon anthocyanin
RHS 182A
RHS 182D


coloration
Greyed red group
Greyed red group


Stolon anthocyanin
Weak
Ranges from weak to medium


intensity




Stolon pubescence
Medium
Ranges from weak to medium


Attitude of hairs
Upward
Upward


Average stolon
Ranges from medium
Ranges from medium to many


quantity
to many



Stolon diameter at
3.5
3.4


bract (mm)
















TABLE 6







FOLIAGE CHARACTERISTICS











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Foliage:




Color of upper surface
RHS 137B
RHS 137A



Medium green
Medium green


Color of underside
RHS 147C
RHS 147C



Yellow green group
Yellow green group


Number of leaflets
3
3


Shape in cross section
Slightly concave to
Slightly concave to flat



flat



Interveinal blistering
Medium
Ranges from medium to




strong


Leaf glossiness
Medium
Ranges from medium to




strong


Terminal Leaflet:




Length (cm)
9.2
9.5


Width (cm)
7.2
6.9


Leaf size
Ranges from large to
Ranges from large to



medium
medium


Length/width ratio
1.27
1.36



Ranges from longer
Much longer than broad



than broad to much




longer than broad



Shape of base
Acute
Acute


Shape of teeth
Obtuse
Obtuse


Serrations per leaf
18.3
22.1


Petiole:




Petiole color
RHS 144A
RHS 145A



Yellow green group
Yellow green group


Petiole length (cm)
19.8
20.2


Petiole diameter (mm)
4.2
4.4


Petiolule color
RHS 144A
RHS 145A



Yellow green group
Yellow green group


Petiolule length (mm)
8.3
7.8


Attitude of hairs
Upward
Strongly outward


Petiole pubescence
Sparse
Ranges from moderate to




sparse


Stipule:




Color
RHS 146B
RHS 146B



Yellow green group
Yellow green group


Anthocyanin
RHS 61A
RHS 58A


coloration
Red purple group
Red purple group


Anthocyanin intensity
Strong
Strong


Length (mm)
17.4
18.7


Width (mm)
7.9
8.3
















TABLE 7







FRUITING TRUSS CHARACTERISTICS











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Anthocyanin coloration
RHS 182A
RHS 182D



Greyed red group
Greyed red group


Anthocyanin intensity
Weak
Absent or very weak


Length at maturity (cm)
37.2
35.3


Position relative to
Ranges from level
Level with


foliage
with to above



Pubescence
Weak
Ranges from weak to medium


Attitude at first pick
Prostrate
Prostrate
















TABLE 8







FLOWER CHARACTERISTICS











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Petal color
RHS NN 155C
RHS NN 155C



White group
White group


Sepal color
RHS 137B
RHS 137A



Green group
Green group


Corolla diameter (mm)
27.5
29.9


Calyx diameter (mm)
34.0
35.7


Petal length (mm)
11.1
12.3


Petal width (mm)
10.1
12.5


Petal length/width ratio
1.10
0.98


Petals/flower
5.8
5.6


Sepal length (mm)
12.3
12.8


Sepal width (mm)
4.7
5.2


Sepal length/width ratio
2.63
2.46


Sepals/flower
11.5
11.3


Size of calyx relative to
Larger
Larger


corolla




Size of inner calyx relative
Ranges from
Ranges from same to larger


to outer calyx
smaller to same



Relative position of petals
Overlapping
Overlapping
















TABLE 9







PEST AND DISEASE REACTIONS











‘PS-4634’


Characteristic
‘PS-1.125’
(U.S. Plant Pat. No. 17,487)





Powdery mildew
Moderate
Moderately resistant


Angular leaf spot
Susceptible
Susceptible


Botrytis fruit rot
Moderately susceptible
Moderately susceptible


Two-spotted
Moderately susceptible
Moderately susceptible


spider mite




Lygus bug
Susceptible
Susceptible


Flower thrips
Moderately susceptible
Moderately susceptible








Claims
  • 1. A new and distinct strawberry plant named ‘PS-1.125’, as herein described and illustrated by the characteristics set forth above.