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United States Department of Agriculture

Agricultural Research Service

Shizuka
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SHIZUKA

Synonym: None

Parentage: Golden Delicious x Indo

Color: Yellow or yellow-green with pink blush

Harvest: Yellow or yellow-green with pink blush

Fruit: Yellow or yellow-green with pink blush Fruit: large to very large, oblate to somewhat round, and regular. The cavity is medium to deeper, somewhat narrow with a medium to shorter length stem. The basin is medium in depth and width, generally smooth, but may be slightly ridged and the calyx is open. The lenticels are few but showy, irregular and slightly raised especially on the shoulder region. Fruit may have some scarfskin, corking, and often have a small amount of smooth russet in the cavity, but otherwise is russet free. Resembles Mutsu, but harvested slightly ahead of Mutsu. The flesh is fine-textured, moderately firm to firm, somewhat crisp, and juicy. The flavor is sweet to very sweet with no detectable acid at advanced maturity (S.I. ≥ 6). When harvested for long-term storage (S.I. = 3 to 5) fruits are mildly acidic. Preliminary evaluation indicates storage life of about 3 to 4 months; may be better than Mutsu. Moderately susceptible to scab. May be resistant to blister spot.  Low susceptiblity to plum curculio.  Moderately susceptible to tarnished plant bug, tufted apple bud moth and redbanded leafroller.  Highly susceptible to codling moth and oriental fruit moth.

Tree: Moderately vigorous, somewhat spreading with large leaves and thick, stiff branches and spurs. Tree is precocious, productive, and has good annual cropping. Blooms mid-season to slightly later. A triploid, so pollen is not viable. Susceptible to scab and cedar apple rust, and moderately susceptible to mildew.  Low susceptibility to European red mite and white apple leafhopper.  Moderately susceptible to rosy apple aphid and Japanese beetle.  Highly susceptible to spotted tentiform leafminer.

Market Potential: Limited; roadside stand

     

     


Last Modified: 3/27/2008
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