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Cutting propagation method for kmeria septentrionalis

A technology for unisexual magnolia and cutting propagation, which is applied in the fields of botanical equipment and methods, preservation of human or animal bodies, and chemicals for biological control, etc. Low rooting rate, etc., to prevent the growth of bacteria and improve the activity of endogenous enzymes

Inactive Publication Date: 2017-04-19
GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Monosexual magnolia mainly relies on seeds for reproduction, but under natural conditions, the germination rate of monosexual magnolia seeds is low and the germination is slow, which seriously restricts its introduction and cultivation
There are few reports on the cutting methods of unisexual magnolia, the main reason is that the rooting rate of unisexual magnolia cuttings is low, and the cuttings are not easy to survive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] On September 10, 2015, the semi-lignified branches with 2-3 axillary buds on the unisexual magnolia plant were cut into cuttings. The cuttings keep the top buds and 2 new leaves of the year, and cut off 1 / 2 of the remaining 2 leaves, and trim the lower end into a smooth oblique section with a length of 10-15cm. Soak the base of the cuttings in 0.1% potassium permanganate for disinfection, and the disinfection time is 30 minutes. Insert the sterilized cuttings directly into the seedbed matrix with a thickness of 15cm without any rooting inducer treatment, the insertion depth is 4-5cm, and the row spacing is 10cm×10cm. The seedbed substrate is a uniform mixture of perlite, fine river sand and peat soil sterilized by 800 times carbendazim, with a volume ratio of 1:1:1. Set up a shade shed on the seedbed, control the relative humidity in the seedbed to be 70-80%, the ambient temperature to be 26-28°C, and the shading rate to be 50-60%. After cuttings, spray water regularl...

Embodiment 2

[0028] On September 10, 2015, the semi-lignified branches with 2-3 axillary buds on the unisexual magnolia plant were cut into cuttings. The cuttings keep the top buds and 2 new leaves of the year, and cut off 1 / 2 of the remaining 2 leaves, and trim the lower end into a smooth oblique section with a length of 10-15cm. Soak the base of the cuttings in 0.1% potassium permanganate for disinfection, and the disinfection time is 30 minutes. Soak the sterilized cuttings in a rooting inducer (ABT rooting agent, the concentration is 100 mg / L) for 2 hours, and dry them in a cool place until there is no water drop on the surface of the cuttings. Insert the cuttings into the seedbed matrix with a thickness of 15cm, the insertion depth is 4-5cm, and the row spacing is 10cm×10cm. Immediately after cutting, water the same concentration of rooting inducer until the seedbed is wet. The cutting substrate is a uniform mixture of perlite, fine river sand and peat soil sterilized by 800 times ca...

Embodiment 3

[0030] On September 10, 2015, the semi-lignified branches with 2-3 axillary buds on the unisexual magnolia plant were cut into cuttings. The cuttings keep the top buds and 2 new leaves of the year, and cut off 1 / 2 of the remaining 2 leaves, and trim the lower end into a smooth oblique section with a length of 10-15cm. Soak the base of the cuttings in 0.1% potassium permanganate for disinfection, and the disinfection time is 30 minutes. Soak the sterilized cuttings in a rooting inducer (100 mg / L naphthalene acetic acid, 500 mg / L indole acetic acid, 50 mg / L aspirin, 15 g / L sucrose) for 2 hours, and dry them in a cool place until there is no water drop on the surface of the cuttings. Insert the cuttings into the seedbed matrix with a thickness of 15cm, the insertion depth is 4-5cm, and the row spacing is 10cm×10cm. Immediately after cutting, water the same concentration of rooting inducer until the seedbed is wet. The cutting substrate is a uniform mixture of perlite, fine river...

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Abstract

The invention discloses a cutting propagation method for kmeria septentrionalis. The method includes the following steps that firstly, half-lignified branches are collected at September to October of every year and are trimmed into cutting slips, after the stem bases of the cutting slips are sterilized, soaking is performed in a rooting inductive agent for 2 h, taking out and drying are performed, and the rooting inductive agent is mainly a mixed aqueous solution of naphthyl acetic acid, indole acetic acid, aspirin and saccharose, wherein the concentration of the naphthyl acetic acid is 100-300 mg / L, the concentration of the indole acetic acid is 500-800 mg / L, the concentration of the aspirin is 50-100 mg / L and the concentration of the saccharose is 15-30 g / L; secondly, the cutting slips are inserted into a seedling bed medium and are immediately irrigated with the rooting inductive agent; and thirdly, a shade frame is erected on a seedling bed, the relative humidity in the seedling bed is controlled at 70-80%, the temperature is 26-28 DEG C, and the light shading rate is 50-60%. The cutting propagation method for the kmeria septentrionalis has the beneficial effects of being high in cutting rooting rate and survival rate, easy and convenient to operate, and the like.

Description

technical field [0001] The invention relates to the technical field of plant asexual reproduction. More specifically, the present invention relates to a cutting propagation method of unisexual magnolia. Background technique [0002] The unisexual magnolia (Kmeria septentrionalis) is an evergreen broad-leaved tree species of the genus Magnolia in the family Magnoliaceae. It has a tall tree body, beautiful tree shape, white and fragrant flowers, and excellent material. It is a precious timber tree species and garden greening tree species. Monosexual magnolias are only distributed in the Maolan National Nature Reserve in Libo County, Guizhou and the Mulun National Nature Reserve in Guangxi. They are distributed in patches only in the Guangxi Mulun National Nature Reserve in Huanjiang, with an area of ​​about 3hm 2 , and there are 200 existing forest trees, which are listed as China's first-class key protected plants. [0003] Monosexual magnolia mainly relies on seeds for re...

Claims

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Application Information

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IPC IPC(8): A01G31/00A01N43/38A01N43/16A01N37/40A01N37/10A01N65/08A01N59/16A01P21/00
CPCA01G31/00A01N37/10A01N37/40A01N43/16A01N43/38A01N59/16A01N65/00A01N65/08A01N2300/00
Inventor 潘春柳黄燕芬朱艳霞董青松柯芳
Owner GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS
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