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津轻原产日本,系青森县苹果试验场育成。1975年命名,在日本是一个重点发展的品种。其产量占苹果总产量的20—25％。本品种适宜在国庆节前上市销售,是一个很有发展前途的优良中熟品种。该品种幼树生长势稍强、直立,萌芽率达75％以上,成枝力强,达3—5个。结果后长势中庸,树冠较为开张,开花结果较早。幼树定植三年开始开花结果,四年生开花株率达80%左右,以短果枝结果为主。据调查,四年生幼树,短果枝占68％,中果枝占18％,长果枝占14％,有腋花芽。果实圆形或扁圆,较大,平均单果重180克,底色黄绿,有淡红晕条纹。果形端正、有光泽、无果锈、皮较薄、蜡质中等。果肉黄白色,肉质致密、松脆多计,味甜,品质上等,可溶性固形物12%,8月中旬成熟,采前稍有落果。采收后可贮藏一个月。为改善津轻着色不良的问题,日本又从该品种中选出了着色较好的轰系、坂田系等津轻着色品系。
Tsugaru origin Japan, Department of Aomori Apple test ground bred. Named in 1975, it is a key species developed in Japan. Its output accounts for 20-25% of the total output of apples. This species is suitable for sale before the National Day, is a very promising medium maturing varieties. The seedling growth of the species is slightly stronger, upright, germination rate of 75% or more, strong branch, 3-5. After the results grow moderate, more open crown, flowering earlier. Young trees planted three years the beginning of flowering, four-year flowering plants rate of about 80%, mainly short fruit branches results. According to the survey, four-year-old young trees, short fruit branches accounted for 68%, 18% of fruit branches, fruit branches accounted for 14%, axillary buds. Fruit round or oblate, larger, the average weight of 180 grams, yellow and green background, with a light red stripes. Fruit-shaped, shiny, rust-free, thin skin, medium wax. Flesh yellow-white, succulent, crisp multi-meter, sweet, top quality, soluble solids 12% mature in mid-August, before harvest a slight drop fruit. After harvest can be stored for a month. In order to ameliorate the problem of poor coloring of Tsugaru, Japan has also chosen from these varieties the better-colored hue lines, Sakata lines and other light-colored lines.