Method for inducing adventitious rooting of Carya cathayensis Sarg.

Abstract

The invention discloses a method for inducing adventitious rooting of Carya cathayensis Sarg.. The method comprises the steps of preparing cuttings, preparing a cutting hotbed, compounding a gel rooting agent, carrying out cutting and carrying out post-processing. The beneficial effects are as follows: after the cuttings are soaked in the gel rooting agent, a layer of rooting agent film is formedon the surface of the cuttings, the partial gel rooting agent film on the ground can reduce water evaporation of the cuttings and prevent the cuttings from being withered and diseased, the partial gelrooting agent film under the ground absorbs water in the cutting matrix and can keep a moist state and also slowly release the rooting agent to stimulate the rooting of the cuttings, the number of rooting, the root length and the thickness of the cuttings are increased, and thus the survival rate of the cuttings is improved; and seedlings can be provided with a warm and moist environment by setting up a thin film arch shed on a seedbed, direct sunlight is avoided, water evaporation of the seedlings is reduced, the survival rate of the cuttings is improved, and therefore, the method of the invention is a simple and efficient method for inducing adventitious the rooting of Carya cathayensis Sarg..

Description

Technical field [0001] The invention belongs to the technical field of plant rooting, and particularly relates to a method for inducing adventitious roots of hickory. technical background [0002] Hickory (Carya cathayensis Sarg.), also known as walnut tree and walnut tree. It is a deciduous tree belonging to the genus Hickory of the Juglans family. It is 10-20 meters high and has a diameter of 30-60 cm at breast height. The bark is smooth, off-white and smooth. The branchlets are thin and the new branches are densely covered with shield-shaped orange-yellow glands. Later, the glands gradually became thinner, with 1-year-old branches purplish-gray, with sparse pubescent hair on the upper end, round and sparse lenticels. The pecan fruit has been recognized by consumers due to its high nutritional value and unique taste and flavor, and has gradually become a popular high-end nut. China is one of the places of origin, suitable for sparse forests on the foothills or valleys with ri...

AI Technical Summary

Problems solved by technology

The survival rate of seed propagation is high, but it must rely on imports, the price is relatively expensive, and the seedlings cultivated are highly variable and late in fruiting. They are generally used for afforestation or rootstock cultivation.

Grafting can effectively shorten the period of fruit bearing, but it requires a large number of rootstocks and scions, which is time-consuming and labor-intensive, and the cost is high

Cutting propagation has the advantages of convenient material collection, short seedling period, and the ability to maintain the excellent traits of the parents. However, hickory is a tree species that is difficult to propagate by cutting. There are few studies on hickory cutting propagation in my country, and there are not many reports on successful cuttings. Because hickory cuttings are not easy to root, the cutting survival rate is not high

[0004] There are many methods about the technology of inducing adventitious roots of hickory nuts. The prior art, such as the Chinese invention patent with the public number CN103238492 B, discloses a method for promoting the occurrence of adventitious roots of hickory branches. The inventive method selects annual thin shell Hickory branches are used as cuttings, inserted into the four substrates of perlite, peat soil, river sand and vermiculite that are spread above the heating wire and mixed in proportion. Before cutting, the cuttings are soaked in rooting powder solution. The advantages of large-scale production, but the main substance of the rooting powder in the method of the invention is easy to photooxidatively degrade, thereby reducing its rooting effect, without antibacterial and disinfection treatment on cuttings wounds, it is easy to cause cuttings to rot and mold, reduce the survival rate of cuttings, and In the method of the invention, the seedlings after cuttings are not treated with sunshade, which will easily cause the water loss of cuttings, and then affect the growth of seedlings.