![]() Resistance to scab is based on the V f gene derived from Malus floribunda 821 (Crosby et al., 1992). The seedling is derived from a cross made in 1972 at Urbana, Ill., of 'Golden Delicious' as the seed parent with Co-op 17 (PRI 1689-110) as the pollen parent (Fig. The original seedling was planted in May 1973 in the HE block on the Purdue Horticulture Research Farm, West Lafayette, Ind., where its position was row 4, tree 16 (HER4T 16) and had the designation PRI 27506 in our breeding records. Fruit thinning will be required to produce large fruit. Moisture content of the fruit will need to be managed by various methods to prevent dehydration in storage, but even when shriveling occurs, the flesh texture remains crisp. The fruit produces little cuticular wax and does not become greasy even after 7 months in storage. The cultivar has been rated consistently as the highest quality apple after storage of all selections or cultivars tested at Purdue Univ. The apple retains its complex sprightly flavor and crisp, firm texture for at least 7 months at 1 C. Acidity moderates in cold storage, resulting in exceptional overall quality after 2 to 3 months. The fruit is characterized by a complex, rich spicy flavor with a high degree of acidity and sweetness. Horticultural Research Farm for 13 years and Rutgers Univ. Fruiting has been observed at various locations in the United States, including the Purdue Univ. 'GoldRush' is the tenth apple cultivar developed by the cooperative breeding program of the Indiana, Illinois, and New Jersey Agricultural Experiment Stations (Crosby et al., 1992). It was named 'GoldRush' to emphasize its golden ground color and bronze blush combined with its "rush" of flavor. 'GoldRush' is a late-maturing yellow apple ( Malus xdomestica Borkh.) with excellent fruit quality and long storage ability combined with field immunity to apple scab incited by Venturia inaequalis (Cke.) Wint., a high level of resistance to apple mildew incited by Podosphaera leucotricha (Ell & EV.) Salm., and moderate resistance to fire blight incited by Erwinia amylovora (Buff.) Winslow. ![]() Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.ġCurrent address: Stark Brothers Nurseries and Orchards Co., Louisiana, MO 63353. The cost of publishing this paper was defrayed in part by the payment of page charges. ![]() Malus xdomestica, Venturia inaequalis, fruit breeding, disease resistance Pecknoldĭepartment of Botany and Plant Pathology and Horticulture, Purdue University, West Lafayette, IN 47907-1165ĭepartment of Plant Science, Rutgers-The State University, New Brunswick, NJ 08903ĭepartment of Horticulture, University of Illinois, Urbana, IL 61801Īdditional index words.
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