RU2294619C1 - Method for propagation of dogwood by cuttings - Google Patents

Abstract

FIELD: horticulture, in particular, propagation of planting stock and growth promoters.

SUBSTANCE: method involves treating cuttings with growth promoting substances upon exposure to aqueous solution of stimulant, namely, para-aminobenzoic acid (PAB) used in concentration of 0.02-0.05% during 5-10 hours; thereafter, coating cuttings with 2-3 cm thick zeolite-containing clay layers and planting into soil.

EFFECT: increased amount and improved retention of planting stock, reduced susceptibility to various diseases and intensified growth of cells.

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Description

The invention relates to gardening, in particular to the propagation of dogwood planting material.

A known method of propagation of fruit crops, in which the cuttings are treated with indolylbutyric acid with exposure in a solution of 14 hours and planted in a layer of sand with the addition of vermicompost (patent No. 2212783, A 01 G 1/06, 17/00, published 09/27/2003).

This method is not effective enough, because its implementation requires additional sources of stimulation of the sprouts, which increases costs.

The closest technical solution is the method of propagation of dogwood by cuttings, where, to stimulate root formation, shoots are treated with growth substances at an exposure of 20-24 hours (Klimenko S.V. Kizil in Ukraine. Kiev: Naukova Dumka. 1990, p. 122-132).

This method is not effective enough, as long-term exposure gives a low yield of cuttings suitable for planting, their incidence is observed.

The purpose of the invention is to increase the efficiency of the method, expanding the range of growth stimulants.

This goal is achieved by the fact that the cuttings are kept in an aqueous solution of para-aminobenzoic acid (PABA) at a concentration of 0.02-0.05% for 5-10 hours, after which the cuttings are coated with zeolite-containing clays - irlites with a layer of 2-3 cm and planted into the ground.

The method is as follows.

PABA - Vitamin H from group B ₁ refers to amino acids, is part of folic acid, and is involved in the synthesis of purines. PABA is a non-toxic compound, phenotypic activator, a genetically significant compound with reparagenic and antimutagenic properties. In a small concentration (0.02-0.05%) it has a stimulating effect on the cuttings of fruit crops. PABA functionally increases the activity of various enzymes. In addition, PABA increases the resistance of cuttings to diseases, vitality, enhances cell growth.

Irlites - zeolite-containing clays (Alagir deposit of the Republic of North Ossetia-Alania), contain iron oxides (Fe ₂ O ₃ ) - 4%, silicon (SiO ₂ ) - 54%, aluminum (Al ₂ O ₃ ) - 16%, calcium (CaO ) - 15%, sulfur (SO ₃ ) - 2.5% and other trace elements in smaller quantities (molybdenum, zinc, magnesium, vanadium, etc.). Having low water loss (3.5%), irlites retain moisture for a long time after exposure of seeds and when planting cuttings in the ground. After enveloping with iritis, cuttings soaked in PABA solution can not only retain moisture, but also enhance activation due to macro- and microelements contained in iritis.

Being sorbents of microelements and PABA, irlites - clay particles serve as adhesives, ensuring the safety of cuttings in the soil.

Without the use of irlites with an excess of soil moisture (especially in the spring), PABA does not sufficiently affect the growth of the stem. With a lack of moisture in the soil, irlites are able to hold the field moisture capacity in the required quantities.

Soaked cuttings, when enveloped in shredded irlites, can hold a clay layer of 2-3 cm. Therefore, when planting cuttings, clay particles of irlite are an integral part when dogwood is propagated by green cuttings.

Example 1. Prepared a solution of PABA at the rate of 2 g of powder per 10 liters of hot water (60-80 ° C). At a temperature of 28-30 ° C, the cuttings were soaked in an aqueous solution for 5 hours.

Soaked cuttings were enveloped in crushed irlite with a layer of 2-3 cm and planted in the ground.

Example 2. Prepared a solution of PABA at the rate of 5 g of powder per 10 liters of water (PABA is dissolved only in hot water at a temperature of 60-80 ° C). Cuttings were placed in the cooled PABA solution for 10 hours, after which they were enveloped with irlites with a layer of 2-3 cm, followed by planting in the ground.

The results of the experiments are summarized in tables 1 and 2, of which the high synergy of the proposed option is visible, where the seedlings height reaches 34.1 cm versus 17.2 in the control and the safety of cuttings 78.8%, which is higher than the control by 22.3%.

Table 1 Experience 1 Options The number of calluses formed,% They formed the roots,% Time from the beginning of the cuttings, DAYS Soaking in PABK 1-4 hours 56.7 32.6 50-55 Soaking in PABK 5-10 hours (proposed) 69.3 43.1 42-48 Soaking in PABK 11-15 hours 61.8 36.9 48-52 According to the prototype 50,0 10.0 50-75

table 2 Experience 2 Options The safety of cuttings,% The average number of roots per stalk, pcs. Height of seedlings, cm after 50 days Soaking cuttings in water (control) 46.5 10,4 17,2 Soaking input + Irlit 51.7 12.8 25.3 Soaking in a PABA solution 64,2 13.5 32.1 Soaking in a solution of PABA + Irlit (proposed) 78.8 16.7 34.1 Prototype 46.3 15.0 19.0

Therefore, in the present invention, the exposure time is reduced from 24 to 10 hours. Without expensive stimulants, natural iritis for a long time retain moisture in the root layer, enriching cuttings with nutrients, accelerate the appearance of roots, increase their number and preservation of planting material, and reduce its incidence.

Claims (1)

The method of propagation of dogwood with cuttings, including treatment with growth substances during exposure to an aqueous solution of stimulants, characterized in that the cuttings are kept in an aqueous solution of para-aminobenzoic acid (PABA) at a concentration of 0.02-0.05% for 5-10 hours, after which the cuttings enveloped with zeolite-containing clays - irlites with a layer of 2-3 cm and planted in the ground.