CN109691344B - Cutting propagation method for false magpie kidney tree - Google Patents

Cutting propagation method for false magpie kidney tree Download PDF

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Publication number
CN109691344B
CN109691344B CN201910174370.XA CN201910174370A CN109691344B CN 109691344 B CN109691344 B CN 109691344B CN 201910174370 A CN201910174370 A CN 201910174370A CN 109691344 B CN109691344 B CN 109691344B
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solution
cuttings
rooting
seedbed
cutting
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CN109691344A (en
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刘贵周
郭昕
黄春球
蔡传涛
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Yunnan Phytopharmaceutical Co ltd
Xishuangbanna Tropical Botanical Garden of CAS
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Yunnan Phytopharmaceutical Co ltd
Xishuangbanna Tropical Botanical Garden of CAS
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/005—Cultivation methods
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00—Methods for working soil
    • A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G2/00—Vegetative propagation
    • A01G2/10—Vegetative propagation by means of cuttings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
    • A01G24/23—Wood, e.g. wood chips or sawdust

Abstract

The invention discloses a cutting propagation method of false streblus gigantea, which comprises the following steps: 1) preparing a seedbed: leveling the ground, and stacking the substrate into a seedbed according to the actual terrain and the number of cuttings; 2) preparing a solution; 3) preparing and processing cuttings: cutting down branches of a sham-like streblus and cutting into small segments with at least two leaf marks, reserving top leaves 1/10-1/3, and cutting off the rest leaves; bundling according to the sequence of morphological upper and lower ends; soaking with solution C; then soaking the morphological lower end of the stem section of 2-3cm in a rooting solution; 4) temporary planting: temporary planting the stem sections soaked by the rooting solution on a seedbed; building a small arched shed and covering a sunshade net; 5) managing; 6) rooting and transplanting. The invention adopts the branch cuttage mode to propagate the seedlings, effectively solves the problems of inconsistent seed maturation time and difficult seed collection during seed propagation, has simple operation, ensures that the survival rate of the rooted seedlings reaches more than 90 percent, and the survival rate of the outplanted field planting reaches more than 80 percent, and is beneficial to large-scale propagation.

Description

Cutting propagation method for false magpie kidney tree
Technical Field
The invention belongs to the technical field of plant propagation, and particularly relates to a cutting propagation method of false streblus.
Background
False magpie kidney tree (1)Streblus indica Bur.) Is a perennial arbor of the genus streblus in the family of Moraceae, and is mainly distributed in Yunnan, Guangxi and Hainan, and mostly grows in the dense forest, valley yin, water side and rock in middle-altitude areas. The medicinal part is bark, has the efficacy of treating traumatic hemorrhage, traumatic injury and gastrointestinal hemorrhage, and is called as stopping because of remarkable efficacyBlood bark ". However, due to the phenomena of damage to the growth environment, unreasonable harvesting and the like, wild resources are continuously reduced, and the current situation of exhaustion is generated. However, no relevant report is found about the seedling propagation and artificial cultivation research of the false streblus. Therefore, the development of artificial propagation of the false streblus indica seedlings has important significance in the aspects of species protection, artificial cultivation, reasonable development and utilization and the like; meanwhile, the method provides guarantee for the sustainable development of related products (medicines).
The false streblus gigantea is a tall tree, the fruit period is 5-12 months, the seeds can naturally pop up and fall to the ground when being mature, the maturation time of the seeds is inconsistent, the collection of the seeds is difficult, and the method has certain restriction effect on the subsequent large-scale propagation and artificial cultivation.
Aiming at the problems, the invention is necessary to invent a cutting propagation method of the false streblus.
Disclosure of Invention
The invention aims to provide a cutting propagation method of pseudostreblus giganteus.
The object of the invention is achieved by the following steps:
1) preparing a seedbed: leveling the ground, and stacking the substrate into a seedbed according to the actual terrain and the number of cuttings;
2) solution preparation: preparing solution A with IBA concentration of 0-1000 mg/L, solution B with NAA concentration of 0-200 mg/L, and KMnO concentration of 1-5 mg/L4The solution C and the solution D of the 200-fold liquid carbendazim solution are used for standby;
3) preparing and processing cuttings: cutting down branches of a sham-like streblus and cutting into small segments with at least two leaf marks, reserving top leaves 1/10-1/3, and cutting off the rest leaves; bundling according to the sequence of morphological upper and lower ends; soaking in solution C for 10-120 min, and taking out; soaking the morphological lower end of the stem segment for 2-3cm in a rooting solution, wherein the rooting solution is an A solution, a B solution or an A + B solution, and the soaking time is 30-120 min;
4) temporary planting: heeling the stem segments soaked in the rooting liquid onto the seedling bed, embedding at least 2/3 cuttings into the matrix, and making the cuttings form 30-60% with the horizontal plane◦Watering thoroughly for the first time; then, a plastic film with the height of 45-55 cm is built on the seedbedCovering a sunshade net with the light transmittance of 45-55% on the small arched shed;
5) management: keeping the humidity in the shed to be 50-75%; when the temperature is higher than 30 ℃, the films at the two ends of the arched shed are opened, and ventilation and cooling are carried out; irrigating the cuttings with corresponding rooting solution every week, wherein the rooting solution is solution A, solution B or solution A + B, and the irrigation amount is 2-3 ml per plant; pouring the solution D once every 8 to 12 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: culturing the seedlings in a seedbed for 25-35 days, and enabling the cuttings to root; then continuing culturing for 15-25 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into the nutrition bag for culturing after hardening for 14-16 days, cutting off 3/4 leaves when transplanting the seedlings into the nutrition bag, watering enough root fixing water, and keeping the substrate wet; cultivating in a nutrition bag for 30-60 days to obtain the nursery for field planting.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the branch cuttage mode to propagate the seedlings, effectively solves the problems of inconsistent seed maturation time and difficult seed collection during seed propagation, has simple operation, ensures that the survival rate of the rooted seedlings reaches more than 90 percent, and the survival rate of the outplanted field planting reaches more than 80 percent, and is beneficial to large-scale propagation.
2. The substrate of the invention is moisture-keeping and breathable; the cutting of the invention uses KMnO firstly4Soaking in IBA solution and/or NAA solution to sterilize the cutting, exude alkaloid from the cutting and promote rooting.
3. The invention uses commercial organic fertilizer to improve the structure of matrix soil, provide nutrition for the growth of later seedlings and promote the survival rate of transplantation.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The invention relates to a cutting propagation method of false streblus, which comprises the following steps:
1) preparing a seedbed: leveling the ground, and stacking the substrate into a seedbed according to the actual terrain and the number of cuttings;
2) solution preparation: preparing solution A with IBA concentration of 0-1000 mg/L, solution B with NAA concentration of 0-200 mg/L, and KMnO concentration of 1-5 mg/L4The solution C and the solution D of the 200-fold liquid carbendazim solution are used for standby;
3) preparing and processing cuttings: cutting down branches of a sham-like streblus and cutting into small segments with at least two leaf marks, reserving top leaves 1/10-1/3, and cutting off the rest leaves; bundling according to the sequence of morphological upper and lower ends; soaking in solution C for 10-120 min, and taking out; soaking the morphological lower end of the stem segment for 2-3cm in a rooting solution, wherein the rooting solution is an A solution, a B solution or an A + B solution, and the soaking time is 30-120 min;
4) temporary planting: heeling the stem segments soaked in the rooting liquid onto the seedling bed, embedding at least 2/3 cuttings into the matrix, and making the cuttings form 30-60% with the horizontal plane◦Watering thoroughly for the first time; then, a small arched shed with the height of 45-55 cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 45-55% is covered on the built shed;
5) management: keeping the humidity in the shed to be 50-75%; when the temperature is higher than 30 ℃, the films at the two ends of the arched shed are opened, and ventilation and cooling are carried out; irrigating the cuttings with corresponding rooting solution every week, wherein the rooting solution is solution A, solution B or solution A + B, and the irrigation amount is 2-3 ml per plant; pouring the solution D once every 8 to 12 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: culturing the seedlings in a seedbed for 25-35 days, and enabling the cuttings to root; then continuing culturing for 15-25 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into the nutrition bag for culturing after hardening for 14-16 days, cutting off 3/4 leaves when transplanting the seedlings into the nutrition bag, watering enough root fixing water, and keeping the substrate wet; cultivating in a nutrition bag for 30-60 days to obtain the nursery for field planting.
Further, the substrate in the step (1) comprises any one or more of perlite, river sand, forest soil and sedge.
Further, the matrix in the step (1) is prepared by mixing the components in a volume ratio of 1: 0.5-2 of river sand and perlite.
Further, the matrix in the step (1) is prepared by mixing the components in a volume ratio of 1: 0-1 parts of forest soil and perlite.
Further, the width of the chamber surface of the seedbed in the step (1) is 100-150 cm, the height of the chamber is 20-30 cm, and the length of the chamber is 5-10 m.
Further, the size of the nutrition bag described in the step (6) is diameter × height =8cm × 12cm, and 1 strain is grown per nutrition bag.
Further, the substrate in the nutrition bag in the step (6) is 8-10: 1 forest and commercial organic fertilizer mixed matrix.
Further, the preparation method of the A + B solution comprises the steps of sequentially adding IBA and NAA into a solvent, and completely dissolving to obtain the A + B solution; wherein the concentration range of IBA in the A + B solution is 0-1000 mg/L, and the concentration range of NAA in the A + B solution is 0-200 mg/L. (firstly, the solvent is water, and IBA and NAA added to the water are IBA and NAA dissolved by a small amount of 99.9% ethanol; secondly, the concentration of IBA in the A + B solution is not equal to that of NAA in the A + B solution, such as IBA200+ NAA100, IBA100+ NAA50, wherein the number after IBA or NAA is the content (concentration) of hormone in the whole solution, and the unit is mg/L).
Example 1
A cutting propagation method of false streblus sinensis comprises the following steps:
1) preparing a seedbed: leveling the ground, and stacking the ground into a seedbed with the width of a compartment surface of 125 cm, the height of the compartment of 25cm and the length of the compartment of 8m by using a matrix according to the actual terrain and the number of cuttings;
2) solution preparation: preparing solution A with IBA concentration of 0-1000 mg/L, solution B with NAA concentration of 0-200 mg/L, and KMnO concentration of 3 mg/L4The solution C and the solution D of 600 times of the carbendazim solution are reserved;
3) preparing and processing cuttings: cutting down branches of a sham-like streblus and cutting into small segments with at least two leaf marks, reserving top leaves 1/10-1/3, and cutting off the rest leaves; bundling according to the sequence of morphological upper and lower ends; soaking in solution C for 10-120 min, and taking out; soaking the morphological lower end of the stem segment in 2-3cm of rooting solution, wherein the rooting solution is solution A, solution B or solution A + B, the soaking time is 30-120 min, and the selection and soaking time of the specific rooting solution are shown in the following table 1;
4) temporary planting: temporarily planting the stem segments soaked by the rooting liquid on a seedbed, embedding the cutting at least 2/3 into the matrix, and making the cutting and the horizontal plane form 45 degrees◦Watering thoroughly for the first time; then, a small arched shed with the height of 50cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 50 percent is covered on the built shed;
5) management: keeping the humidity in the shed to be 60 percent; when the temperature is higher than 30 ℃, the films at the two ends of the arched shed are opened, and ventilation and cooling are carried out; irrigating the cuttings with rooting solution every week, wherein the rooting solution is solution A, solution B or solution A + B, and the rooting solution is consistent with the rooting solution in the step (3) and the dosage is 3ml per plant; pouring the solution D once every 10 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: after 30 days of seedbed culture, the cuttings begin to root; and then continuing culturing for 20 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into a nutrition bag for culturing after hardening for 15 days, wherein the nutrition bag is a nutrition bag with the diameter multiplied by the height =8cm multiplied by 12cm, each bag contains 1 plant, when the seedlings are transplanted into the nutrition bag, 3/4 of the leaves need to be cut, enough root fixing water is poured, then the substrate is kept moist, and the substrate in the nutrition bag is 9 in volume ratio: 1, mixing forest trees and commercial organic fertilizer to form a matrix; cultivating in the nutrition bag for about 45 days to obtain the nursery for field planting.
Each matrix is repeated for 3 times, each is repeated for 30 plants (total 90 plants), and the selected seedbed matrix, rooting solution and rooting rate are shown in the following table 1;
TABLE 1 root growth rate of Pseudostreblus pseudoplena cutting propagation
Figure DEST_PATH_IMAGE002
Example 2
A cutting propagation method of false streblus sinensis comprises the following steps:
1) preparing a seedbed: leveling the ground, and stacking the ground into a seedbed with the width of a compartment surface of 100 cm, the height of the compartment of 20cm and the length of the compartment of 5m by using a matrix according to the actual terrain and the number of cuttings; the matrix is prepared from the following components in a volume ratio of 1: 0.5 of river sand and perlite.
2) Solution preparation: preparing solution A with IBA concentration of 100mg/L and KMnO with concentration of 1mg/L4The solution C and the solution D of 200 times of the carbendazim solution are reserved;
3) preparing and processing cuttings: cutting down the branches of the false streblus streblumea and cutting the branches into small sections with at least two leaf marks, reserving a top leaf 1/10, and cutting off the other leaves; bundling according to the morphological upper and lower order; soaking in solution C for 10 min, and taking out; soaking the morphological lower end of the stem segment for 2cm in a solution A for 30 min;
4) temporary planting: temporarily planting the stem segments soaked in the solution on the seedbed, embedding the cuttings into the matrix at least 2/3, and making the cuttings form 60% with the horizontal plane◦Watering thoroughly for the first time; then, a small arched shed with the height of 45cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 45 percent is covered on the built shed;
5) management: the humidity in the shed is kept about 75 percent; when the temperature is higher than 30 ℃, the films at the two ends of the arched shed are opened, and ventilation and cooling are carried out; irrigating the cuttings with a solution A every week, wherein the solution A is 3ml per plant; pouring the solution D once every 8 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: after 25 days of seedbed culture, the cuttings begin to root; and then continuing culturing for 15 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into a nutrition bag for culturing after hardening for 14 days, wherein the nutrition bag is a nutrition bag with the diameter multiplied by the height =8cm multiplied by 12cm, each bag contains 1 plant, when the seedlings are transplanted into the nutrition bag, 3/4 of the leaves need to be cut, enough root fixing water is poured, then the substrate is kept moist, and the substrate in the nutrition bag is 8: 1, mixing forest trees and commercial organic fertilizer to form a matrix; cultivating in a nutrition bag for 30 days to obtain the nursery for field planting.
In the embodiment, the seedling propagation is carried out by adopting a branch cuttage mode, the rooting rate is up to 75%, the survival rate of outplanting and field planting is up to 82%, and the large-scale propagation is facilitated.
Example 3
A cutting propagation method of false streblus sinensis comprises the following steps:
1) preparing a seedbed: leveling the ground, and stacking the ground into a seedbed with the width of a compartment surface of 150cm, the height of the compartment of 30cm and the length of the compartment of 10m by using a matrix according to the actual terrain and the number of cuttings; the matrix is prepared from the following components in a volume ratio of 1:0.1 of forest soil and perlite.
2) Solution preparation: preparing a B solution with the concentration of 200mg/L NAA and 5mg/L KMnO4The solution C and the solution D of 1000 times of the carbendazim solution are reserved;
3) preparing and processing cuttings: cutting down the branches of the false streblus streblumea and cutting the branches into small sections with at least two leaf marks, reserving a top leaf 1/3, and cutting off the other leaves; bundling according to the morphological upper and lower order; soaking in solution C for 120min, and taking out; then soaking the morphological lower end of the stem segment by 3cm in a rooting solution, wherein the rooting solution is a solution B, and the soaking time is 120 min;
4) temporary planting: temporarily planting the stem segments soaked in the solution on the seedbed, embedding the cuttings into the matrix at least 2/3, and making the cuttings form 60% with the horizontal plane◦Watering thoroughly for the first time; then, a small arched shed with the height of 55cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 55 percent is covered on the shed;
5) management: the humidity in the shed is kept about 60 percent; when the temperature is higher than 30 ℃, the films at the two ends of the arched shed are opened, and ventilation and cooling are carried out; irrigating the cuttings with rooting solution every week, wherein the rooting solution is solution B, and the irrigation amount is 3ml per plant; pouring the solution D once every 12 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: after 35 days of seedbed culture, the cuttings begin to root; and then continuing culturing for 25 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into a nutrition bag for culturing after hardening for 16 days, wherein the nutrition bag is a nutrition bag with the diameter multiplied by the height =8cm multiplied by 12cm, each bag contains 1 plant, when the seedlings are transplanted into the nutrition bag, the leaves are required to be cut off 3/4, sufficient root fixing water is poured, then the substrate is kept moist, and the substrate in the nutrition bag is 10 in volume ratio: 1, mixing forest trees and commercial organic fertilizer to form a matrix; cultivating in a nutrition bag for 60 days to obtain the nursery for field planting.
In the embodiment, the seedling propagation is carried out by adopting a branch cuttage mode, the rooting rate is as high as 86%, the survival rate of outplanting and field planting is as high as 81%, and the large-scale propagation is facilitated.
Example 4
A cutting propagation method of false streblus sinensis comprises the following steps:
1) preparing a seedbed: leveling the ground, and stacking the ground into a seedbed with the width of a compartment surface of 120cm, the height of the compartment of 25cm and the length of the compartment of 8m by using a matrix according to the actual terrain and the number of cuttings; the matrix is prepared from the following components in a volume ratio of 1:2, mixing the river sand and the perlite.
2) Solution preparation: 2mg/L KMnO4Solution C and solution D of 800 times of carbendazim solution for later use;
3) preparing and processing cuttings: cutting down the branches of the false streblus streblumea and cutting the branches into small sections with at least two leaf marks, reserving a top leaf 1/5, and cutting off the other leaves; bundling according to the sequence of morphological upper and lower ends; soaking in solution C for 100min, and taking out; then soaking the morphological lower end of the stem section of 2.5cm in a rooting solution, wherein the rooting solution is an A + B solution, and the soaking time is 60 min;
4) temporary planting: temporarily planting the stem segments soaked by the rooting liquid on a seedbed, embedding the cutting at least 2/3 into the matrix, and making the cutting and the horizontal plane form 45 degrees◦Watering thoroughly for the first time; then, a small arched shed with the height of 50cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 50 percent is covered on the built shed;
5) management: the humidity in the shed is kept about 68 percent; when the temperature is higher than 30 ℃, the films at the two ends of the arched shed are opened, and ventilation and cooling are carried out; irrigating the cuttings with corresponding rooting solution every week, wherein the rooting solution is A + B solution, and the irrigation amount is 2.5ml per plant; pouring the solution D once every 10 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: after 30 days of seedbed culture, the cuttings begin to root; and then continuing culturing for 20 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into the nutrition bags for culturing after hardening for 15 days, wherein the size of each nutrition bag is that the diameter is multiplied by the height =8cm multiplied by 12cm, 1 plant is cultured in each nutrition bag, and the matrix in the nutrition bags is that the volume ratio is 9:1, mixing forest trees and commercial organic fertilizer to form a matrix; when the plant is transplanted to a nutrition bag, 3/4 need to be cut off from the leaves, enough root fixing water is poured, and then the substrate is kept wet; cultivating in a nutrition bag for 45 days to obtain the nursery for field planting.
The preparation method of the A + B solution comprises the steps of sequentially adding IBA and NAA into a solvent, and completely dissolving to obtain an A + B solution; wherein the concentration of IBA in the A + B solution is 500mg/L, and the concentration of NAA in the A + B solution is 100 mg/L. The solvent is water, and the IBA and the NAA added into the water refer to IBA and NAA dissolved by a small amount of 99.9% ethanol.
In the embodiment, the seedling propagation is carried out by adopting a branch cuttage mode, the rooting rate is up to 90%, the survival rate of outplanting and field planting is up to 85%, and the large-scale propagation is facilitated.

Claims (2)

1. A cutting propagation method of false streblus giganteus is characterized by comprising the following steps:
1) preparing a seedbed: leveling the ground, and stacking the ground into a seedbed with the width of a compartment surface of 150cm, the height of the compartment of 30cm and the length of the compartment of 10m by using a matrix according to the actual terrain and the number of cuttings; the matrix is formed by mixing forest soil and perlite according to the volume ratio of 1: 0.1;
2) solution preparation: preparing a B solution with the concentration of 200mg/L NAA and 5mg/L KMnO4The solution C and the solution D of 1000 times of the carbendazim solution are reserved;
3) preparing and processing cuttings: cutting down the branches of the false streblus streblumea and cutting the branches into small sections with at least two leaf marks, reserving a top leaf 1/3, and cutting off the other leaves; bundling the upper and lower ends according to the morphological sequence; soaking in solution C for 120min, taking out, and soaking the lower end of stem with morphology of 3cm in rooting solution B for 120 min;
4) temporary planting: temporarily planting the stem sections soaked by the solution on a seedbed, burying the cuttings at least 2/3 into the matrix, making the cuttings form 60 degrees with the horizontal plane, and watering thoroughly at one time; then, a small arched shed with the height of 55cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 55 percent is covered on the shed;
5) management: keeping the humidity in the shed at 60%, opening the films at two ends of the arched shed when the temperature is higher than 30 ℃, and ventilating and cooling; irrigating the cuttings with rooting solution B every week, wherein the irrigation amount is 3mL per plant; pouring the solution D once every 12 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: after 35 days of seedbed culture, the cuttings begin to root; continuously culturing for 25 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into a nutrition bag for culturing after hardening for 16 days, wherein the nutrition bag is a nutrition bag with the diameter multiplied by the height =8cm multiplied by 12cm, each bag contains 1 plant, when the seedlings are transplanted into the nutrition bag, 3/4 need to be cut off from the leaves, enough root fixing water is poured, and then the substrate is kept wet; the substrate in the nutrition bag is a mixed substrate of forest trees and commercial organic fertilizer in a volume ratio of 10: 1; cultivating in a nutrition bag for 60 days to obtain the nursery for field planting.
2. A cutting propagation method of false streblus giganteus is characterized by comprising the following steps:
1) preparing a seedbed: leveling the ground, and stacking the ground into a seedbed with the width of a compartment surface of 120cm, the height of the compartment of 25cm and the length of the compartment of 8m by using a matrix according to the actual terrain and the number of cuttings; the matrix is formed by mixing river sand and perlite in a volume ratio of 1: 2;
2) solution preparation: 2mg/L KMnO4The solution C, the solution D of 800 times of the carbendazim solution and the solution A + B for later use; the A + B solution is prepared by sequentially adding IBA and NAA into a solvent to be completely dissolved, wherein the concentration of IBA in the A + B solution is 500mg/L, the concentration of NAA in the A + B solution is 100mg/L, the solvent is water, and the IBA and NAA added into the water are IBA and NAA dissolved by using a small amount of 99.9% ethanol;
3) preparing and processing cuttings: cutting down the branches of the false streblus streblumea and cutting the branches into small sections with at least two leaf marks, reserving a top leaf 1/5, and cutting off the other leaves; bundling the upper and lower ends according to the morphological sequence; soaking with solution C for 100min, taking out, and soaking the morphological lower end of stem segment of 2.5cm in rooting solution A + B for 60 min;
4) temporary planting: temporarily planting the stem sections soaked by the solution on a seedbed, burying the cuttings at least 2/3 into the matrix, making the cuttings form 45 degrees with the horizontal plane, and watering thoroughly at one time; then, a small arched shed with the height of 50cm is built on the seedbed by using a plastic film, and a sunshade net with the light transmittance of 50 percent is covered on the built shed;
5) management: keeping the humidity in the shed at 68%, and opening the films at two ends of the arched shed for ventilation and cooling when the temperature is higher than 30 ℃; irrigating the cuttings with rooting solution every week, wherein the rooting solution is A + B solution, and the irrigation amount is 2.5mL per plant; pouring the solution D once every 10 days to prevent the cuttings from being infected by germs;
6) rooting and transplanting: the cuttings are cultured by a seedbed for 30 days to start to root; continuously culturing for 20 days, gradually opening the sunshade net and the plastic film to harden the seedlings for rooting, transplanting the seedlings into the nutrition bags for culturing after hardening for 15 days, wherein the size of the nutrition bags is that the diameter is multiplied by the height =8cm multiplied by 12cm, 1 plant is cultured in each nutrition bag, 3/4 is cut off from the leaves when the seedlings are transplanted into the nutrition bags, sufficient root fixing water is poured, and then the substrate is kept moist; the matrix in the nutrition bag is a mixed matrix of forest trees and commercial organic fertilizer in a volume ratio of 9: 1; cultivating in a nutrition bag for 45 days to obtain the nursery for field planting.
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