`Fortune' Plum

Abstract

The Agricultural Research Service, U.S. Dept. of Agriculture, stonefruit breeding program in Fresno, Calif., is developing freshmarket Japanese-type plums (Prunus salicina Lindl.). The fruit crosses among plums were made in 1955. Since then, >62,000 seedlings have been grown and five cultivars released: 'Queen Rosa', 'Frontier', 'Friar' (Weinberger, 1975), 'Calita', and 'Blackamber' (Ramming and Tanner, 198 1). Currently, 'Friar' and 'Blackamher', both black plums, make up 25% of the 222,000 tons of fresh plums produced in California [California Tree Fruit Agreement (CTFA), 1990]. As a result, black plum prices usually are depressed during midseason, when 'Blackamber' and 'Friar' are ripe. Therefore, growers have been looking for red plum cultivars that command a higher market price. 'Fortune' plum (Fig. 1), a large, red, Japanese-type plum hybrid, has been released to provide an attractive, shiny, bright-red plum for the midseason market to complement the abundant supply of black plums.

Polyamine Accumulation Following Hot‐Water Dips Influences Chilling Injury and Decay in‘Friar’ Plum Fruit

“…Storage at low temperature of 'Friar' plum fruit has been reported by a number of researchers (Wang and others 1992, Ramming and Tanner 1993, Dundar and others 1996, but no incidence of CI and decay has been reported. However, Wells and others (1994) reported freeze damage as one of the major injuries, and other cold-induced disorders, in plums.…”

“…The fruit is round-oval in shape (Couvillon and Krewer 1991;Fan and others 1996). Fruit flesh firmness and total soluble solid content are reported to be 22.2 N and 10.9 %, respectively, and could be stored for 3 to 4 wk at 0 °C (Ramming and Tanner 1993).…”