Method for segmenting bletilla striata tubers to perform seedling propagation and raising

The invention provides a method for segmenting bletilla striata tubers to perform seedling propagation and raising. The method comprises the steps of fresh bletilla striata tuber preprocessing, light treatment, low-temperature processing, shoot-inducing processing, root-inducing processing, bletilla striata seedling transplantation, later-period management and the like. The method directly uses the bletilla striata tubers as a culture material, enables explants to be thicker and solider than seed seedlings, better in disease resistance ability and higher in growing speed, also fully ensures the hereditary stability of the bletilla striata seedlings and avoids the phenomenon that the seedlings are variable. The inhabiting effect on other lateral buds of main buds is eliminated through light treatment and segmenting low-temperature processing, production of the bletilla striata buds can be quickly promoted, and the seedling raising cost is greatly reduced. By means of the method, the budding speed is high, and increase rate is high. The method is simple and does not need additional tissue culture devices, the production cost is low, and bletilla striata seedlings can be produced in a large-scale mode and are high in application value.