A method for breeding virus-free potato miniature tubers in integrated net sheds

Abstract

The invention relates to a method for breeding virus-free micro-potatoes by an integrated net house and belongs to the technical field of potato breeding. The invention adopts the technical scheme that the method comprises the following process steps of: 1, selecting a breeding facility; 2, carrying out seedling exercising, transplantation and fixed planting; 3, preparing nutrient solution and applying a fertilizer; 4, managing the temperature of the net house; 5, carrying out seedling pressure, vermiculite culture and tip shearing; 6, carrying out ozone air sterilization and nutrient solution disinfection; 7, carrying out carbon dioxide fertilization; 8, harvesting the micro-potatoes. According to the invention, seedling exercising, field planting and the subsequent growing process in the micro-potato production are guaranteed not to be infected by viruses which use poison insects as vectors; the ventilation condition of a substrate on a culture bed is improved; quality of seed potatoes of the micro-potatoes is improved; tuberization is uniform; meanwhile, pollution to the environment is avoided; under the condition of the net house, the virus-free micro-potatoes are cultured by utilizing the soilless substrate and micro tubers with weights of 5 to 15g are bred. The virus-free seed micro-potatoes provide an important mode which solves the problem of seed nature degeneration caused by virus infection and is used for the production of virus-free seed potatoes.

Description

technical field [0001] The invention relates to a method for breeding virus-free potato micro-tubers in an integrated net shed, belonging to the technical field of potato breeding. Background technique [0002] At present, there are two commonly used methods for the breeding of potato virus-free miniature tubers. One is to complete the whole growth period of microtuber tubers in the bottle with tissue culture seedlings. The whole process is completed in the tissue culture room. The miniature tubers produced in this way are generally About 0.5 ~ 2g, small size, thin skin, not easy to store. Another method is to use tissue culture seedlings and use vermiculite as the substrate to produce on the grounded cultivation bed in the shed. The grounded cultivation bed often affects the respiration of the root system due to the supersaturation of water in the substrate, causing the root system to rot and affecting the growth of the plant. Pesticides are used many times to control the ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for breeding potato virus-free micro-tubers in integrated net sheds, to ensure that seedling hardening, field planting and subsequent growth in the production of micro-tubers are not infected by viruses with poisonous insects as mediators, and improve The aeration conditions of the substrate on the cultivation bed improve the quality of the micro-potato seed tubers, uniform tuber formation, avoid environmental pollution, and solve the above-mentioned problems in the background technology

Images