Method for raising Qilian juniper seedlings by carrying out cuttage by virtue of twigs

Abstract

The invention relates to a method for raising Qilian juniper seedlings by carrying out cuttage by virtue of twigs. The method comprises the following steps: (1) arranging a slotting machine and treating a cutting medium, namely arranging the cutting medium in the slotting machine, sterilizing soil firstly before the cuttage, covering the upper part of the soil with a sunshade net, placing for 1 day, and then carrying out cuttage; (2) collecting cutting slips, namely cutting the cutting slips from a mother plant by adopting a blade, then aligning the bases of the cutting slips, and immersing the bases into clear water to be treated later; (3) carrying out pre-treatment on the cutting slips, namely immersing the cutting slips into treatment solution, and carrying out cuttage while treatment is carried out; and (4) carrying out hormone soaking, namely carrying out rooting powder ABT treatment on each cutting slip for 200-300 minutes while concentration is 10-200mg / l, and carrying out acceptance 60 days later. The method provided by the invention has the advantages that Qilian juniper seedling development speed is greatly improved, the technical problems that Qilian juniper seed regeneration is difficult, growth and development of seedlings are poor, distribution is sparse, short and twist are caused and seedling development speed is low in the past are solved, and the method provided by the invention has an important role on large-scale industrial production and propagation of Qilian juniper plants.

Description

technical field [0001] The invention belongs to the technical field of asexual reproduction, and relates to a method for improving the survival rate of cuttings of evergreen coniferous juniper qilian twigs through hormone treatment. Background technique [0002] Qilian juniper (Sabinaprzewalskii) is the only forest type distributed on sunny or semi-sunny slopes in the subalpine dark coniferous forest belt of the Qilian Mountains forest area. The populations are scattered discontinuously in the shape of islands on the plateau surface and edge of alpine meadows and desert grasslands, and are important water conservation forest tree species in Qilian Mountains. Due to the poor terrain and environmental conditions in the distribution area, the seedlings generally grow poorly, and the distribution is sparse and low and distorted. Therefore, be badly in need of adopting the method for artificial propagation to improve the seedling propagation speed of Qilian juniper to solve this...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the prior art and provide a method for growing seedlings by cuttings of twigs of Qilian cypress, so as to solve the problems of low survival rate, low yield and slow propagation speed of twigs of Qilian cypress in the prior art