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区农科院园艺所的科技人员通过20多年的选择、培养、观察,选育出苹果抗寒新品系——“宁光”(代号1—4—6)。该品系抗寒性特强,适应性广,丰产(10年生单株产量200斤左右),品质中上,成熟早(7月下旬到8月初),风味甜,适宜宁夏山区和寒地发展。“宁光”是钴60r射线1500伦琴处理过的国光自然杂交种子,1963年定植于选种园,1971年起繁殖苗
With more than 20 years of selection, scientific and technical personnel of the horticultural institute of the Academy of Agricultural Sciences have cultivated, observed and bred the new anti-cold strain of apple - Ning Guang (code 1-4-6). The cold-resistant strains of the extraordinarily strong, wide adaptability, high yield (10-year-yield of about 200 kg per plant), middle and high quality, mature early (late July to early August), sweet flavor, suitable for the development of mountain and cold areas in Ningxia. “Ningguang” is a natural hybrid seed of Guoguang processed by cobalt 60r ray 1500 Roentgen and planted in a selection plantation in 1963. Since 1971, breeding seedling