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以目前北方薯区主栽品种徐薯 18、北京 553等 4个品种的组培脱毒苗和未脱毒普通繁殖苗为试材 ,连续 3a进行对比试验的结果表明 ,脱毒苗比未脱毒普通苗生长健壮 ,产量提高。主要表现在萌芽性好 ,出苗时间比普通苗提早 1～ 4 d,蔓长增加 39～ 83cm,茎叶鲜重增加 19%～ 99% ,叶面积系数增大 16%～ 110 % ,T/ R比值减小 0 .2 5～ 0 .66,经济系数提高 0 .0 6～ 0 .19,薯块增重速度加快 ,单株薯数平均增加 1.3个 ,商品薯率提高 37.5%～ 118.4 % ,产量提高 2 5.8%～ 156%。
At present, cultivars of virus-free tissue culture and common virus-free seedlings of four cultivars of cultivars in the northern potato area, such as Xushu 18 and Beijing 553, were used as test materials, and the results of comparative experiments for consecutive 3 years showed that the virus- Ordinary seedlings grow robust, increase production. Mainly in the sprouting, germination time 1 to 4 days earlier than normal seedlings, vine length increased 39 ~ 83cm, fresh stems and leaves increased by 19% to 99%, leaf area coefficient increased by 16% to 110%, T / R The ratio decreased from 0.52 to 0.66, the economic coefficient increased from 0.06 to 0.19, the weight gain rate of potato tubers increased rapidly, the average number of potato tubers increased by 1.3, the potato yield increased by 37.5% -118.4% Output increased by 2 5.8% ~ 156%.