Winter electric heating hotbed cutting propagation method for platycladus orientalis

An electric heating hotbed and arborvitae technology, applied in the forestry field, can solve the problems affecting the popularization and application of arborvitae cutting technology, unstable rooting survival rate of cuttings, and large differences in rooting quality, so as to improve the rooting survival of cuttings, increase the rooting rate of cuttings, The effect of high rooting rate

Active Publication Date: 2021-02-19
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low survival rate of cuttings under low temperature conditions, in the production process, the 1-2-year-old semi-lignified cuttings of the mother plant are generally collected and cut on a cold bed in spring. The cutting effect is affected by the growth state of the mother plant, the thickness of the cuttings, the growth Regulator treatment, substrate, temperature and humidity changes, etc., the rooting survival rate of cuttings is unstable, and the quality of rooting varies greatly, which affects the promotion and application of orientalis cutting technology in actual production

Method used

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  • Winter electric heating hotbed cutting propagation method for platycladus orientalis
  • Winter electric heating hotbed cutting propagation method for platycladus orientalis

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a method for winter cuttings of arborvitae simple electric heating hotbed, the specific steps are as follows:

[0045] (1) Construction of electrothermal temperature control slotting machine

[0046] Choose a flat plot in the greenhouse, and excavate a rectangular earth pit with a width of 125-130cm and a depth of 45-50cm in the north-south direction. The length depends on the specifications of the geothermal line and the size of the site; cm╳11.5cm╳5.0cm) into a slotting bed with a width of 115-120cm and a depth of 45-50cm.

[0047] Coarse sand layer I is laid on the bottom of the slotting bed, with a thickness of 5-8cm;

[0048] A ceramsite layer is laid on it, with a thickness of 5-6cm;

[0049] A 5-8cm thick coarse sand layer II is laid on the ceramsite layer.

[0050] In order to facilitate the uniform laying of heating wires, the sand surface must be scraped flat. Then insert 12-13 bamboo poles or wooden sticks with a length of 30-35 cm ...

Embodiment 2

[0065] According to the method identical with embodiment 1, only step 4) middle cutting ear is replaced by 12-15cm by long 10-15cm, and diameter 0.25-0.35cm, diameter 0.35cm, and the treatment base time is replaced by 10s-2h by 1-2h, The concentration of the rooting liquid used in the treatment was replaced by 400, 1000, 2000mg L -1 Indole butyric acid (IBA) rooting solution.

[0066] Set the temperature of the temperature controller in step 6) to normal temperature, 16, 19, 24, 26, and 29° C. respectively. Use 24 automatic spraying devices or artificial humidification to keep the relative humidity in the slotting bed at about 80%, and keep the temperature and humidity in the greenhouse outside the slotting bed in a natural state.

[0067] After 90 days of cutting, the rooting rate of cuttings treated with different concentrations of rooting liquid was significantly different under different temperature control. Among them, the rooting rate at room temperature and 16°C is 0,...

Embodiment 3

[0069] Step 1) and step 2) are identical with embodiment 1;

[0070] (3) Collection of cuttings

[0071] In January, lignified or semi-lignified cuttings with normal growth and no pests and diseases were collected from the 20-year-old mother trees of 'Arborvitae' and 'Arborvitae', and brought back to the room for processing. If it is collected from the wild, it is necessary to properly moisturize the cuttings of the branches to keep the cuttings fresh.

[0072] (4) Cutting treatment

[0073] On the same day, trim the cuttings to 10-15cm in length and 0.15-0.25cm in diameter. Cut off the scaly leaves of the lower 2 / 3 of the cuttings, keep the leaves of the upper 1 / 3 (3-5 groups) of the cuttings and cut them with leaves, and the cuts are smooth. The trimmed cuttings were bundled into bundles of 30, immersed in rooting solutions of different concentrations, dipped in the base of the cuttings for 2-3 cm, and treated the base for 2 hours. The rooting liquid used for treatment i...

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Abstract

The invention discloses a winter electric heating hotbed cutting propagation method for platycladus orientalis. The method comprises the following steps of constructing an electric heating temperaturecontrol slotting machine by using materials such as a thermal insulation material, a geothermal wire and a temperature controller; collecting one-year-old semi-lignified branches in the winter platycladus orientalis physiological activity stationary phase, trimming cutting slips, leaving 3-5 sets of leaves above the more than 1 / 3 portions of the upper portions of the cutting slips, and bundling the cutting slips into small bundles for cuttage with the leaves; treating the cutting slips in 1000-2000 mg.L<-1> indolebutyric acid rooting liquid for 2 hours; during cuttage, vertically inserting the cutting slips into a sand bed with the cuttage depth being 1 / 2-2 / 3 of the length of the cutting slips, and then moisturizing the cutting slips and the sand surface; and after cuttage is completed, controlling the temperature of an electric heating hotbed to be 24-29 DEG C, and keeping the relative humidity to be 80%. According to the method, rooting induction is carried out on the platycladus orientalis one-year-old semi-lignified mixed cutting slips treated by the rooting liquid by utilizing the electric heating hotbed, so that the rooting rate and the rooting quality are improved.

Description

technical field [0001] The invention belongs to a method for raising seedlings in the field of forest trees, and in particular relates to a cutting propagation method for arborvitae in electric heating hotbeds in winter. Background technique [0002] Platycladus orientalis (Linn.) Franco is an evergreen coniferous tree belonging to the Cupressaceae subfamily Thujoideae. Arborvitae, native to my country, is the main ecological and stress-resistant tree species, and it is also an excellent tree species for landscaping and landscaping in mountainous areas, plains and cities. Arborvitae is evergreen in all seasons, is the main longevity tree species, and has been identified as a Beijing tree. [0003] At present, the production of arborvitae is facing the production contradiction between the cultivation of improved varieties and the improvement of improved varieties, that is, the contradiction between the demand for improved seedlings and the low reproduction rate. Conventiona...

Claims

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Application Information

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IPC IPC(8): A01G2/10A01G7/06A01G9/28
CPCA01G2/10A01G7/06A01G9/28
Inventor 刘国彬曹均赵今哲廖婷王烨郭丽琴姚砚武张玉平
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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