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ORIGIN: Cascade was released by the USDA, Washington State University and the Washington State Potato Commission in 1969. It was the only selection of a cross between B3820-14 x PI214372. It was tested as No. 48-1. CHARACTERISTICS: Plants are medium sized and spreading. Stems are green, medium thick with slight wings. Leaves are green, slightly pubescent and open. There are four pairs of primary leaflets and secondary and tertiary leaflets are abundant. Maturity is main season. Flowers are light lavender fading to white and pollen is abundant and 50% viable. Tubers are oblong with shallow eyes and bright white, smooth skin that shows occasional slight cracking. STRENGTHS & WEAKNESSES: Cascade was initially released for early French fry processing directly out of the field. Tubers are relatively free of internal defects, such as net necrosis and have ideal shape for French fries. Its early yields are higher than Kennebec and Russet Burbank and tuber specific gravity is greater than Kennebec but less than Russet Burbank. Cascade plants have been reported to be moderately resistant to Verticillium albo-atrum. Although the initial intent for Cascade was the processing market, its attractive appearance and good internal qualities make it a good tablestock variety. |
