Patent Grant
PP19240
Genus and species: Fragaria×ananassa.
Variety denomination: ‘DrisStrawFour’.
The present invention relates to a new and distinct strawberry cultivar designated ‘DrisStrawFour’ and botanically known as Fragaria×ananassa. This new strawberry cultivar was discovered in December, 2000 and originated from a cross between the female parent ‘6F364’, a proprietary strawberry plant (unpatented) and the male parent ‘Mirador’ (U.S. Plant Pat. No. 11,279). The original seedling of the new cultivar was asexually propagated at a nursery in Shasta County, California. ‘DrisStrawFour’ was subsequently asexually propagated and underwent further testing at a nursery in Hillsborough County, Florida for six years. The present invention has been found to retain its distinctive characteristics through successive asexual propagations.
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 following description of ‘DrisStrawFour’ is based on observations taken from the 2000 to 2005 growing seasons in Hillsborough County, Florida. 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. ‘DrisStrawFour’ has not been observed under all possible environmental conditions. Color terminology follows The Royal Horticultural Society Colour Chart, London (R.H.S.) (2001).
Table 1 shows plant characteristics of the new variety compared with plant characteristics of the male parent ‘Driscoll Mirador’ (U.S. Plant Pat. No. 11,279). Plant characteristics include plant height, terminal leaf length, petiole length, fruit length, fruit width and Botrytis fruit rot.
Botrytis fruit rot
Table 2 shows plant characteristics of the new variety compared with plant characteristics of the commercial varieties, ‘Driscoll Malibu’ (U.S. Plant Pat. No. 16,070) and ‘Driscoll Osceola’ (U.S. Plant Pat. No. 15,752). Plant characteristics include plant height, diameter, number of crowns per plant, habit, density of individual plant and vigor.
Table 3 shows leaf characteristics of the new cultivar compared with leaf characteristics of ‘Driscoll Malibu’ and ‘Driscoll Osceola’. 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 4 shows information about the petiole, the petiolule, the bract, and the stipule of the new cultivar compared to ‘Driscoll Malibu’ and ‘Driscoll Osceola’. 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 5 shows stolon characteristics of the new cultivar compared to ‘Driscoll Malibu’ and ‘Driscoll Osceola’. 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 6 shows inflorescence characteristics of the new cultivar compared to ‘Driscoll Malibu’ and ‘Driscoll Osceola’. 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 7 shows fruit characteristics of the new cultivar compared to ‘Driscoll Malibu’ and ‘Driscoll Osceola’.
Table 8 shows the resistance to different forms of stress of the new cultivar compared to ‘Driscoll Malibu’ and ‘Driscoll Osceola’. These forms of stress include high temperatures and pesticides.
Table 9 shows pest and disease characteristics of the new cultivar compared to ‘Driscoll Malibu’ and ‘Driscoll Osceola’.
Tetranychus urticae
Tarsonemus pallidus
Aphelencoides
fragariae
Pratylenchus
penetrans
Aphis spp. (Aphids)
Lygus hesperus
Botrytis fruit rot
Verticillium wilt
Phytophthora
fragariae
Ramularia tulasnei-
Xanthomonas
fragariae
