Abstract:

The study aimed to accelerate speed of propagation of potato microtubers. In this study, the induction system of potato microtubers was established by optimizing the influence factor. The results indicated that, the medium was MS with 0.05 mg/L IBA, 0.05 mg/L NAA, 10 mg/L coumarin, 10% sucrose and 0.2% activated carbon, dark culture and 20℃ were suitable for induction of microtubers. In this system, the tuber rate was 94.25%, the weight of single microtuber was 0.128 g, and the rate of high-quality potatoes was 100%. The system proved a technological foundation for industrialized production of potato micretubers.