Detoxification and rapid propagation method of sweet potatoes of Yizi 138

Abstract

The invention discloses a detoxification and rapid propagation method of sweet potatoes of Yizi 138. The detoxification and rapid propagation method comprises the following specific steps: treating stem tips at the top of the sweet potato of Yizi 138 to obtain a stem tip meristematic tissue; inoculating the stem tip meristematic tissue to a stem tip induction medium for culture to obtain a stem tip test-tube plantlet; firstly weeding out weak seedlings and symptomatic appearance seedlings through a visual observation method, then authenticating sweet potato viruses by a serological method, and weeding out non-detoxified sweet potato seedlings of Yizi 138; under a germ-free condition, cutting the high-quality sweet potato seedling stem tips subjected to stem tip meristematic tissue culture and detoxification authentication into single sections, inoculating the single sections into a common culture medium for continuous switching culture, and carrying out rapid propagation on the detoxified sweet potato seedlings of Yizi 138. According to the simple and feasible detoxification and rapid propagation method of the sweet potatoes of Yizi 138, an extremely good detoxification effect can be achieved; a large quantity of high-quality seedlings are provided; the high-quality seedlings and healthy seedlings are used for rapid propagation, so that the planting benefit can be increased, and most farmers and development enterprises are benefited.

Description

technical field [0001] The invention relates to the field of detoxification of sweet potatoes, in particular to a method for detoxification and rapid propagation of Yizi 138 sweet potatoes. Background technique [0002] Yizi 138 sweet potato has good taste, high sugar content, and good stickiness. It is one of the varieties that people in urban and rural areas like to eat. It is suitable for cultivation as spring and summer potato. It has better resistance to fertilizer and waterlogging, more pieces, and the size of potato pieces is more uniform and moderate. Yizi 138 Sweet potatoes are asexually propagated by vegetative organs such as tubers and stems. During the process of introduction, reproduction and production, it is easy to cause the accumulation and spread of sweet potato virus diseases, which will lead to problems such as yield reduction, quality decline, and species degradation. Therefore, the use of healthy seedlings for rapid propagation has become an inevitable...

AI Technical Summary

Problems solved by technology

Legacy 138 Sweet potatoes are asexually propagated by vegetative organs such as potato tubers and stems, which can easily cause the accumulation and spread of sweet potato virus diseases during the process of introduction, reproduction and production, resulting in reduced yield, reduced quality, and degraded species.

Therefore, the use of healthy seedlings for rapid propagation has become an inevitable choice, but the general detoxification method is not very effective in detoxification, which not only consumes raw materials, but also affects profits