Strawberry plant named ‘DrisStrawThree’

Abstract

This invention relates to a new and distinct cultivar of strawberry plant named ‘DrisStrawThree’. The new cultivar is primarily characterized by its large fruit size, heavy fruit production, and resistance to powdery mildew.

Description

Genus and species: Fragaria×ananassa.

Variety denomination: ‘DrisStrawThree’.

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry cultivar designated ‘DrisStrawThree’ and botanically known as Fragaria×ananassa. This new strawberry cultivar was discovered in October, 2002 and originated from a cross between the female parent ‘5F205’, a proprietary strawberry plant (unpatented) and the male parent ‘San Juan’ (U.S. Plant Pat. No. 12,899). The original seedling of the new cultivar was asexually propagated at a nursery in Shasta County, Calif. ‘DrisStrawThree’ was subsequently asexually propagated and underwent further testing at a nursery in Ventura County, Calif. 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.

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 ‘DrisStrawThree’ is based on observations taken from the 2002 to 2006 growing seasons in Ventura County, Calif. 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. ‘DrisStrawThree’ 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 parent ‘San Juan’. Plant characteristics include plant height, leaf shape in cross section, fruit hollow center, fruit texture when tasted, and reaction to aphids.

	TABLE 1
	Characteristic	‘DrisStrawThree’	‘San Juan’
	Plant height (cm)	20.5	28.0
	Leaf shape in	Slightly concave	Flat to slightly
	cross		convex
	Fruit hollow center	Small	Medium
	Fruit texture when	Very fine	Medium
	tasted
	Aphis spp.	Moderately	Susceptible
	(Aphids)	resistant

Table 2 shows plant characteristics of the new variety compared with plant characteristics of the commercial varieties, ‘Driscoll Camarillo’ (U.S. Plant Pat. No. 14,771) and ‘Baeza’ (U.S. Plant Pat. No. 11,548). Plant characteristics include plant height, diameter, number of crowns per plant, habit, density of individual plant and vigor.

TABLE 2
		‘Driscoll
Characteristic	‘DrisStrawThree’	Camarillo’	‘Baeza’
Plant height	20.5	23.3	22.4
(cm)
Plant diameter	45.1	43.9	44.7
(cm)
Number of	4	3	3
crowns/plant
Habit	Flat globose	Globose	Globose
Density of	Dense	Medium to Dense	Medium to Dense
individual plant
Vigor	Strong	Strong	Medium

Table 3 shows leaf characteristics of the new cultivar compared with leaf characteristics of ‘Driscoll Camarillo’ and ‘Baeza’. 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 3
Leaf		‘Driscoll
Characteristic	‘DrisStrawThree’	Camarillo’	‘Baeza’
Terminal	0.82	0.90	0.83
leaflet length (cm)
Terminal	0.80	0.97	0.91
leaflet width (cm)
Terminal leaflet	1.04	0.93	0.91
length/width ratio
No. teeth/	17	27	29
terminal leaflet
Shape of teeth	Rounded	Rounded	Rounded
Color of	RHS 139A	RHS N189B	RHS 147A
upperside of leaf
Color of	RHS 191B	RHS 137C	RHS 137C
underside of leaf
Leaf shape in	Slightly concave	Slightly concave	Concave
cross section
Leaf blistering	Weak	Medium	Medium
Leaf glossiness	Weak	Weak	Weak
No. leaflets	Three only	Three only	Three only
Terminal	Revolute	Revolute	Revolute
leaflet margin
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 Camarillo’ and ‘Baeza’. 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 4
Characteristic	‘DrisStrawThree’	‘Driscoll Camarillo’	‘Baeza’
Petiole length	14.1	12.7	13.4
(cm)
Petiole diameter	0.412	0.408	0.420
(cm)
Petiole	Dense	Sparse	Medium to
pubescence			dense
Petiole pose of	Outward to	Outwards	Outwards
hairs	downward
Petiole color	RHS 144B	RHS 144B	RHS 144B
Petiolule color	RHS 145B	RHS 145B	RHS 145B
Petiolule length	1.098	1.255	1.456
(cm)
Petiolule diameter	0.236	0.254	0.232
(cm)
Bract frequency	1	1	1
Stipule length	3.8	4.0	3.7
(cm)
Stipule width	0.985	1.070	1.256
(cm)
Stipule	Dense	Sparse	Sparse
pubescence

Table 5 shows stolon characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. 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 5
		‘Driscoll
Characteristic	‘DrisStrawThree’	Camarillo’	‘Baeza’
Stolon Number	Few to medium	Few to medium	Few to
			medium
Stolon Anthocyanin	Strong	Weak to medium	Weak to
			medium
Stolon Thickness	Medium	Thick	Thick
			to very thick
Stolon Pubescence	Sparse	Sparse	Medium to
			dense

Table 6 shows inflorescence characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. 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 6
		‘Driscoll
Characteristic	‘DrisStrawThree’	Camarillo’	‘Baeza’
Inflorescence	Beneath	Above	Above
position relative to
foliage
Flower size	Medium	Medium	Medium
Flower diameter	3.001	2.263	2.490
(cm)
Petal spacing	Overlapping	Overlapping	Overlapping
Petal length (cm)	1.502	1.262	1.496
Petal width (cm)	1.531	1.263	1.511
Petal length/width	0.98	1.00	0.99
ratio
Petal color	RHS 155B	RHS 155C	RHS 155B
Calyx diameter (cm)	4.088	2.550	2.925
Calyx diameter	Larger	Smaller	Same size
relative to corolla
Inner calyx diameter	Same size	Same size	Same size
relative to outer
Sepal length (cm)	1.582	0.964	1.087
Sepal width (cm)	0.817	0.544	0.505
Receptacle color	RHS N144A	RHS 2B	RHS 1A
Anther color	RHS 17A	RHS 15B	RHS 17B

Table 7 shows fruit characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’.

TABLE 7
		‘Driscoll
Characteristic	‘DrisStrawThree’	Camarillo’	‘Baeza’
Fruiting truss	13.4	26.5	21.7
length (cm)
Fruiting truss	Prostrate	Erect	Erect
attitude
Fruiting truss	Medium	Long	Long
length
Fruit length	4.93	3.76	4.35
(cm)
Fruit width	4.36	3.73	3.92
(cm)
Fruit length/	1.13	1.01	1.11
width ratio
Fruit weight (g)	27.5	21.0	22.3
Relative fruit	Very large	Medium	Medium
size
Predominant	Almost	Conical	Conical
fruit shape	cylindrical
Difference in	Slight	None or very	None or very
shape between		slight	slight
primary &
secondary
fruits
Band without	Narrow	Absent or very	Absent or very
achenes		narrow	narrow
Unevenness of	Medium	Medium	Medium
fruit surface
Fruit skin color	RHS 45B	RHS 46A	RHS 46B
	Red	Red	Red
Evenness of	Uneven	Even	Even
fruit color
Fruit glossiness	Medium	Medium	Medium
Insertion of	Level with	Level with	Level with
achenes	surface	surface	surface
Achene	RHS 165A	RHS 166B	RHS 163B
coloration-	Red to purple,	Red to purple,	Red to purple,
sunward side of	possibly greyed	possibly greyed	possibly greyed
berry
Achene	RHS 151C yellow	RHS 151C	RHS 151A
coloration-	to green	yellow to green	Yellow to green
shaded side of
berry
Achenes per	243.6	316.2	361.3
berry
Achene weight	0.000664409	0.000570367	0.000466731
Insertion of	Set above the	Level	Level
calyx	fruit
Pose of calyx	Reflexed	Reflexed	Reflexed
segments
Size of calyx in	Smaller to larger	Same size	Same size
relation to fruit
Adherence of	Strong	Strong	Strong
calyx
Firmness of	Firm	Firm	Firm
flesh
Color of the	RHS 155A	RHS 155A	RHS 155A
flesh	(White) to RHS	(White) to RHS	(White) to RHS
	44D (light red)	44D (light red)	38B (pale rose)
Evenness of	Slightly uneven	Even	Even
flesh color
Distribution of	Marginal and	Only marginal	Only marginal
flesh color	central
Hollow center	Small	Absent	Medium
Sweetness	Strong	Medium	Medium
Acidity	Weak	Medium	Medium
Texture when	Very fine	Medium	Medium
tasted
Time of	Early	Early	Late
flowering
Harvest	Mid-season, early	Mid-season,	Late
maturity	June to late	early June to	early July to late
	December	late December	December
Type of	Fully everbearing	Fully	Fully
bearing		everbearing	everbearing
Grams of	500	286	289
fruit/plant

Table 8 shows the resistance to different forms of stress of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. These forms of stress include drought, high temperatures, wind, high pH, and high soil salt level.

TABLE 8
Reaction to		‘Driscoll
Stress	‘DrisStrawThree’	Camarillo’	‘Baeza’
Drought	Moderately	Moderately	Moderately
	resistant	resistant	resistant
High temperatures	Moderately	Moderately	Moderately
	resistant	resistant	resistant
Wind	Moderately	Moderately	Moderately
	resistant	resistant	resistant
High pH	Moderately	Moderately	Moderately
	resistant	resistant	resistant
High soil salt level	Moderately	Moderately	Susceptible
	resistant	resistant

Table 9 shows pest and disease characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’.

TABLE 9
		‘Driscoll
Pest or Disease	‘DrisStrawThree’	Camarillo’	‘Baeza’
Tetranychus urticae	Moderately	Moderately	Moderately
(2-spotted spider	resistant	resistant	resistant
mite)
Tarsonemus pallidus	Moderately	Moderately	Moderately
	resistant	resistant	resistant
Aphelencoides	Moderately	Moderately	Moderately
fragariae	resistant	resistant	resistant
Pratylenchus	Moderately	Moderately	Moderately
penetrans	resistant	resistant	resistant
Ditylenchus dipsac	Moderately	Moderately	Moderately
	resistant	resistant	resistant
Anthonomus rubi	Moderately	Moderately	Moderately
	resistant	resistant	resistant
Aphis spp. (Aphids)	Moderately	Moderately	Moderately
	resistant	resistant	resistant
Lygus hesperus	Moderately	Moderately	Moderately
(Lygus bug)	resistant	resistant	resistant
Botrytis fruit rot	Moderately	Moderately	Moderately
	Susceptible	Susceptible	Susceptible
Powdery mildew	Resistant	Highly	Susceptible
		susceptible

Claims

1. A new and distinct cultivar of strawberry plant as described and shown herein.