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长果12苹果系日本品种,1996年由陕西延安市果树试验场从日本长野县果树试验场引入,1996年春嫁接在6年生乔化北斗树体上。翌年就有腋花芽结果,第三年结果株率100％,平均株产31.2千克,最高产量56.4千克。表现早熟,果个中大、浓红、美观,风味浓郁、香甜,适应性广,抗逆性强,极丰产,是一个极有发展前景的中早熟苹果品种。
Chang12 Apple is a Japanese breed. In 1996, it was introduced from the fruit tree test site of Nagano Prefecture in Yan’an City, Shaanxi Province in 1996, and grafted on the 6-year-old Qiaohua Beidou Tree in the spring of 1996. Axillary buds the following year results, the third year results plant rate of 100%, the average yield of 31.2 kg, the highest yield of 56.4 kg. Premature performance, the fruit of a large, thick red, beautiful, rich flavor, sweet, wide adaptability, strong resistance, very yield, is a very promising varieties of early-maturing apple.