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, California. ‘DrisStrawThree’ was subsequently asexually propagated and underwent further testing at a nursery in Ventura County, California 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, California. 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 (cm)	20.5	23.3	22.4
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	Medium to
individual plant	Dense	Dense
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
		‘Driscol
Leaf Characteristic	‘DrisStrawThree’	Camarillo’	‘Baeza’
Terminal leaflet	0.82	0.90	0.83
length (cm)
Terminal leaflet	0.80	0.97	0.91
width (cm)
Terminal leaflet	1.04	0.93	0.91
length/width ratio
No. teeth/terminal	17	27	29
leaflet
Shape of teeth	Rounded	Rounded	Rounded
Color of upperside	RHS 139A	RHS N189B	RHS 147A
of leaf
Color of underside	RHS 191B	RHS 137C	RHS 137C
of leaf
Leaf shape in cross	Slightly concave	Slightly concave	Concave
section
Leaf blistering	Weak	Medium	Medium
Leaf glossiness	Weak	Weak	Weak
No. leaflets	Three only	Three only	Three only
Terminal leaflet	Revolute	Revolute	Revolute
margin
Terminal leaflet	Obtuse	Rounded	Rounded
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 (cm)	14.1	12.7	13.4
Petiole diameter	0.412	0.408	0.420
(cm)
Petiole	Dense	Sparse	Medium
pubescence			to 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 (cm)	3.8	4.0	3.7
Stipule width (cm)	0.985	1.070	1.256
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 position	Beneath	Above	Above
relative to foliage
Flower size	Medium	Medium	Medium
Flower diameter (cm)	3.001	2.263	2.490
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 ratio	0.98	1.00	0.99
Petal color	RHS 155B	RHS 155C	RHS 155B
Calyx diameter (cm)	4.088	2.550	2.925
Calyx diameter relative	Larger	Smaller	Same size
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 length	Medium	Long	Long
Fruit length (cm)	4.93	3.76	4.35
Fruit width (cm)	4.36	3.73	3.92
Fruit length/	1.13	1.01	1.11
width ratio
Fruit weight (g)	27.5	21.0	22.3
Relative fruit size	Very large	Medium	Medium
Predominant	Almost	Conical	Conical
fruit shape	cylindrical
Difference in shape	Slight	None or very	None or
between primary &		slight	very slight
secondary fruits
Band without	Narrow	Absent or very	Absent or
achenes		narrow	very 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 achenes	Level with	Level with	Level with
	surface	surface	surface
Achene coloration-	RHS 165A	RHS 166B	RHS 163B
sunward side of	Red to purple,	Red to purple,	Red to
berry	possibly greyed	possibly greyed	purple,
			possibly
			greyed
Achene coloration-	RHS 151C yellow	RHS 151C	RHS 151A
shaded side of berry	to green	yellow to green	Yellow to
			to green
Achenes per berry	243.6	316.2	361.3
Achene weight	0.000664409	0.000570367	0.000466731
Insertion of calyx	Set above	Level	Level
	the fruit
Pose of calx	Reflexed	Reflexed	Reflexed
segments
Size of calyx in	Smaller	Same size	Same size
relation to fruit	to larger
Adherence of calyx	Strong	Strong	Strong
Firmness of flesh	Firm	Firm	Firm
Color of the flesh	RHS 155A	RHS 155A	RHS 155A
	(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 tasted	Very fine	Medium	Medium
Time of flowering	Early	Early	Late
Harvest maturity	Mid-season, early	Mid-season,	Late
	June to late	early June to	early July to
	December	late December	late December
Type of bearing	Fully	Fully	Fully
	everbearing	everbearing	everbearing
Grams of fruit/plant	500	286	289

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	Moderately	Moderately	Moderately
	temperatures	resistant	resistant	resistant
	Wind	Moderately	Moderately	Moderately
		resistant	resistant	resistant
	High pH	Moderately	Moderately	Moderately
		resistant	resistant	resistant
	High soil	Moderately	Moderately	Susceptible
	salt level	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	Moderately	Moderately	Moderately
urticae (2-
spotted	resistant	resistant	resistant
spider mite)
Tarsonemus	Moderately	Moderately	Moderately
pallidus	resistant	resistant	resistant
Aphelencoides	Moderately	Moderately	Moderately
fragariae	resistant	resistant	resistant
Pratylenchus	Moderately	Moderately	Moderately
penetrans	resistant	resistant	resistant
Ditylenchus	Moderately	Moderately	Moderately
dipsac	resistant	resistant	resistant
Anthonomus	Moderately	Moderately	Moderately
rubi	resistant	resistant	resistant
Aphis spp.	Moderately	Moderately	Moderately
(Aphids)	resistant	resistant	resistant
Lygus hesperus	Moderately	Moderately	Moderately
(Lygus bug)	resistant	resistant	resistant
Botrytis	Moderately	Moderately	Moderately
fruit rot	Susceptible	Susceptible	Susceptible
Powdery	Resistant	Highly	Susceptible
mildew		susceptible

Claims

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