Rapid propagation method for fraxinus chinensis

Abstract

The invention discloses a rapid propagation method for fraxinus chinensis. The rapid propagation method comprises the following steps: collecting cuttings; preparing a cutting seedbed: spraying a 0.3% potassium permanganate solution to sterilize a substrate, and putting the sterilized substrate into seedling raising cups, wherein the substrate of the cutting seedbed consists of peat, mushroom residues, mulberry twig powder and vermiculite in a weight ratio of 10:(1-3):(3-5):(4-6); soaking the cuttings in the 0.3% potassium permanganate solution for sterilization, and further soaking in a 2000mg / L indolebutyric acid solution so as to obtain treated cuttings; cutting the treated cuttings into the seedling raising cups, and thoroughly watering the substrate after the cutting depth of the cuttings in the substrate is 3-4cm; and performing cottage management and acclimatization and transplanting after cottage, thereby obtaining fraxinus chinensis seedlings. By adopting the rapid propagation method disclosed by the invention, the rooting rate can be up to 90% or higher after 15-20 days of cottage culture, the whole cottage process only needs 22-30 days, the cottage survival rate can be up to 85%, the rapid propagation method has the advantages of simple and practicable operation, low cost, and the like, and a good basis is made for large-scale and industrial planting of the fraxinus chinensis.

Description

technical field [0001] The invention relates to the technical field of crop breeding, in particular to a rapid propagation method of ash trees. Background technique [0002] Ash tree (Fraxinus chinensis Roxb) belongs to Oleaceae, deciduous trees of the genus Ash, also known as Chinese wax, insect wax, Sichuan wax, yellow wax, beeswax, green palm wood, white wattle. From the central and southern part of Northeast China in the north, through the Yellow River Basin and the Yangtze River Basin, to Guangdong and Guangxi in the south, to Fujian in the southeast, and to Gansu in the west. The wood of the ash tree is tough and can be used to make furniture, agricultural tools, vehicles, plywood, etc.; the bark is called "Qinpi", and it is used as a heat-clearing medicine in traditional Chinese medicine; the tree can be stocked with ash worms to obtain ash; the ash tree can also be used as a sand-fixing tree species; It can be used for the treatment of dysentery, diarrhea, leukorrhe...

AI Technical Summary

Problems solved by technology

However, the root system of cutting seedlings obtained by cutting propagation is poor, and taproots cannot be formed. The survival rate of seedlings is low, the life span is shorter than that of seedlings, and their stress resistance is weak.

At present, there are few studies on the cutting propagation of ash trees. The conventional cutting propagation methods of ash trees have problems such as long seedling cultivation period, unstable rooting rate, less root system of cutting seedlings, and weak disease resistance, which lead to the survival of seedlings after planting. The low yield and slow growth rate are not conducive to the large-scale production of ash tree cutting propagation