Efficient cutting propagation method for aerospace sterile materials of sorghum bicolor

Abstract

The invention discloses an efficient cutting propagation method for aerospace sterile materials of sorghum bicolor. The efficient cutting propagation method includes steps of S1, scissoring current-year plants of aerospace carried materials of the sorghum bicolor to be used as cuttings in October, removing leaves of the cuttings and performing lower cutting processing for the cuttings; S2, preparing soil of a seedbed, sterilizing the seedbed and airing the seedbed; S3, performing cutting, inserting 1 / 3-1 / 2 parts of lower ends of the cuttings into pits, then compacting the pits, watering the 1 / 3-1 / 2 parts of the lower ends of the cuttings thoroughly and keeping a cutting environment wet; S4, transplanting cutting seedlings into a greenhouse at the end of December; and S5, transplanting the cutting seedlings in the greenhouse into a field in March of the next year. The efficient cutting propagation method has the advantages that propagation of the aerospace sterile materials of the sorghum bicolor is realized by a cutting process, the shortcoming of difficulty in propagation of the aerospace sterile materials of the sorghum bicolor is overcome, and preservation, development and utilization of excellent resources are facilitated; and the cuttings are soaked by naphthalene acetic acid, so that the survival rate of cutting is effectively increased, and popularization of the aerospace sterile materials of the sorghum bicolor is greatly promoted.

Description

technical field [0001] The invention relates to the technical field of cutting propagation, in particular to a high-efficiency cutting propagation method for the sterile material of Sorbus dancae. Background technique [0002] Sorghum bicolor (Sorghum bicolor) is a forage sorghum and sudangrass hybrid bred sorghum grass annual grass, with the characteristics of tall plants, thick stems, strong tillering ability, and good regeneration. Through the introduction experiments in recent years, several Sorbus dansica materials with strong adaptability and good performance in the hilly areas of Sichuan were screened out. These materials were carried on the "Shijian No. 8" returnable scientific experiment satellite launched in 2006. The purpose is to make biological materials have mutations that cannot be produced on the ground through space mutagenesis. It was planted in the spring of 2007, and it was found that its agronomic traits had changed. The leaf volume increased, the tille...

AI Technical Summary

Problems solved by technology

It was planted in the spring of 2007, and it was found that its agronomic traits had changed, the leaf volume increased, the tillering ability was enhanced, the grass yield was increased, and the growth period was prolonged. The heading time was delayed to about October, which was 1 month longer than that of the control. Sterility also appeared, and its seed setting rate hardly reached 5%, which seriously affected the preservation, development and utilization of resources, and caused difficulties in stabilizing beneficial traits.

[0003] Since Sorbus is an annual pasture, cutting propagation is rarely used in Sorbus, and there are few studies on its cutting methods

Images