依据马铃薯块茎营养丰富，再生能力强，能多次生长出不定芽原理，采取循环掰芽法加速脱毒薯原种繁殖，能扩大繁殖系数（平均３９．６，最高达５５．４，是普通繁殖法的４～５倍），且节约种薯，３５ｋｇ左右种薯繁殖６６６．７ｍ２，是普通繁殖法用种量的１／４，降低了种薯生产成本，每６６７ｍ２比普通繁殖法纯增效益７６２．４元。 According to potato tuber nutrient-rich, strong reproductive ability, can grow adventitious buds principle, to take the cycle of breaking bud method to accelerate virus-free potato breeding, can expand the breeding coefficient (average 39.6, up to 55.4, is normal Breeding method 4 to 5 times), and save the seed, about 35kg seed breeding 666.7m2, is the common breeding method with the amount of 1/4, reducing the cost of seed production, per 667m2 than ordinary breeding pure Benefit 762.4 yuan.