Analysis of the factors affecting virus-free potato seedlings production of Yunshu 201

It is successful in virus-free potato seedlings production,however,the culture conditions varied among different potato varieties.The factors affecting virus-free potato seedlings of new variety Yunshu 201 was analyzed.The results showed that the culture medium was better with MS including 0.2 mg/L Gibberellin +0.5 mg/L Pantothenic acid +0.05 mg/L NAA,and the impact of virus-free was perfect when inoculating with 0.1-0.2 cm stem apical point.The experiment indicated that the concentration of C and density of inoculation were 20 g/L,25 plantlets/bottle and 1/2 MS liquid medium were suitable for this variety.These results were put forward to spread the new potato variety widely.