Narrative
The following is a detailed description of the new cultivar, including fruit production, together with the cultivar's morphological characteristics. The characteristics of the cultivar are compared to the standard used in the area: `Hertiage`. This description is based on information provided by cooperating scientists from plants grown in fields at Queenstown, Md., Cream Ridge, N.J., Blackstone, Va. and River Falls, Wis., Rock Hall, Pa., and from plants grown in the greenhouse at College Park. JEF-b1 produces a moderate number of root- and crown-suckers. During the growing season, canes are light green colored, usually unbranched, semi-erect and moderately vigorous. Thorns are sparse, green, thin and usually less than 2 mm in length (see FIG. 3). Leaves have a R.H.S. (Royal Horticultural Society of London) Colour Chart number of 22A, are trifoliolate, and pentafoliolate on vigorous primocanes. Leaf serration is more complex than other eastern american raspberries, and is similar to `Glen Gerry`, a parent. `Glen Gerry` does not produce fall fruit and is thornless. Tips or serrations of JEF-b1 leaves form more acute angles than those on leaves of `Heritage` and other fall bearing cultivars. JEF-b1 leaf color is dark green. Fruit is borne on the top of the primocane in the fall season or from lateral buds at the base of winter canes. Fruit trusses are cymose clusters. Flowers are perfect and indistinguishable from other raspberry cultivars. Fruit are light yellow in color, having R.H.S. Color Chart number 143A, firm, large, and very symmetrical. Druplets are held together tightly, and druplets will often tear before they separate from their neighbors. Fruit is round-conic, has an even collar, and readily separates from its torus as do other raspberries. The cavity width is slightly smaller than in other cultivars. Fruit has a mild-sweet flavor with a banana-aromatic flavor developing in cooler climates. The plant is field resistant to many common pests and diseases in the eastern United States, e.g. mildew, anthracnose, leaf rust, and verticillium wilt. The plants' reaction to Phytophthora fragarae root rot is probably moderately resistant. Fruit is only moderately resistant to rot. Fruit Production JEF-b1 has been tested in a replicated trial in Cream Ridge, N.J., and in Rock Hall, Pa. The following data were collected in the summer/fall of 1994 and 1995. Early yield refers to fruit picked before Sep. 1, 1994.
Cultivar release by Harry Swartz, Joseph Fiola, Herbert Stiles, and Brian Smith