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龙垦杏1号(五九七一号)、龙垦杏2号(五九七二号)是黑龙江省育成的两个杏树新品种,1985年通过省级鉴定,1986年经黑龙江省农作物品种审定委员会审定命名。龙垦杏1号生长势强,树冠半开张。抗寒力强,在-35℃下能安全越冬。萌芽力强,成枝力弱,以中短果枝结果为主。果实平底圆形,平均果重30克左右,最大果重50克以上,果皮黄色,向阳面有红晕,果肉枯黄色,肉细多汁,无纤维,香味浓,可溶性固形物9％～14％,酸甜适口,品质上。离核,仁苦。山杏砧嫁接树三年见果。10年生树单株产量可达81～107公斤,
Long Ken Xing No. 1 (No. 491) and Long Ken Xing No. 2 (No. 4972) are two new varieties of apricot trees bred in Heilongjiang Province. They passed the provincial appraisal in 1985 and were approved by the Heilongjiang Province Crops in 1986 Variety approval committee named after the trial. Long Ken Xing growing strong on the 1st, the crown half-opened. Strong cold, safe at -35 ℃ overwintering. Strong germination, weak branches, in the short fruiting branches based. Fruit flat round, the average fruit weight of about 30 grams, the largest fruit weight more than 50 grams, yellow skin, sun side flush, flesh yellow, juicy meat, no fiber, fragrant, soluble solids 9% to 14% , Sweet and sour taste, quality. From nuclear, benevolent. Prunus armeniaca grafted tree see fruit in three years. 10-year-old tree yield of 81 to 107 kg,