CN114287249B - Summer cutting propagation method for hydrangea macrophylla - Google Patents

Abstract

The application discloses a summer cutting propagation method of hydrangea macrophylla, which comprises the steps of manufacturing a special plug, arranging ventilation gaps or holes at the middle lower part of the peripheral side surfaces of holes, preparing a cutting matrix, preparing a mixed cutting matrix containing coconut chaff and perlite, adding high molecular water-absorbent resin into the cutting matrix, paving the prepared cutting matrix into the pretreated plug, watering thoroughly for later use, reserving stem segments on the trimmed branch sections and under the trimmed branch sections, immersing rooting liquid, inserting the cut seedling into the plug matrix, and carrying out sun-shading and moisturizing treatment on the plug with the plug; and spraying a root promoting agent every day until half of the cutting shoots root, and then spraying the mineral source potassium fulvate and the amino acid raw powder once. The application uses the pretreatment plug tray to increase ventilation to enhance drainage and uses the principle of air root pruning to prevent root system coiling and rot, and matches with post treatment to reduce the water content of the matrix, and uses continuous trace root promoter stimulation to induce the cutting slips to root in a large amount, shortens the rooting time and improves the cutting rooting rate of the hydrangea macrophylla in a high-temperature environment in summer. The new roots are more in number after the cutting seedlings propagated by the method are planted, and the root system grows rapidly.

Description

Summer cutting propagation method for hydrangea macrophylla

Technical Field

The application belongs to the field of flower cultivation, and particularly relates to a cutting propagation method of hydrangea macrophylla in a high-temperature environment.

Background

In order to achieve the effects of dwarf and compact, thick stem and luxuriant flowers, the hydrangea macrophylla needs to be trimmed in 7-8 months, and the trimmed branches can be subjected to cuttage for expanding reproduction. However, in the most hot stage of the year, the high temperature and the high water content of the matrix induce the large-area occurrence of stem rot, so that the cutting survival rate of the hydrangea macrophylla is seriously affected, and the waste of agricultural materials and manpower is caused. Therefore, reducing the water content of the matrix and shortening the rooting time are effective methods for improving the rooting rate of the hydrangea macrophylla cutting in summer.

Disclosure of Invention

In order to solve the technical problems, the application discloses a summer cutting propagation method for hydrangea macrophylla, which comprises the following steps:

(1) Manufacturing of special plug

Cutting with a plug, arranging ventilation slits or holes at the middle lower part of the peripheral side surfaces of the holes,

(2) Preparation of cutting matrix

Preparing a mixed cutting matrix containing coconut coir and perlite, adding high molecular water-absorbing resin into the cutting matrix, paving the prepared cutting matrix into the pretreated plug in the step 1, watering thoroughly for later use,

(3) Cutting process

Taking each section of the pruned branch as 1 cutting slip, leaving stem sections on the upper section and the lower section, soaking the cutting slips in rooting liquid, inserting the cutting slips into a plug tray matrix,

(4) Post-cutting management

Sun-shading, cooling and moisturizing the cuttage seedlings with the plug tray; and (3) spraying a root promoting agent every day until the cutting shoots are too half to root, and then spraying the mineral source potassium fulvate and the amino acid raw powder once to promote plant growth, wherein matrix moisture and cutting shoot humidity are only supplemented by spraying in the management process.

Further, the specific ventilation treatment operation step of the step 1 is that a slit with the length of 1cm is respectively formed at the middle lower part of the peripheral side surface of each cavity.

Further, the volume ratio of the coconut coir to the perlite in the cutting matrix in the step 2 is 1:1, the diameter of the added macromolecule water-absorbent resin is 0.6-0.9mm, and the dosage is 1g/L.

Further, in the step 3, a stem section with the length of 0.5cm is left on the trimmed branch section, a stem section with the length of 1.5cm is left under the section, and the time for soaking the cutting slips in the rooting liquid is 5min.

Further, the rooting liquid formula in the step 3 comprises the following components: 10mg/L of naphthalene acetic acid, 10mg/L of indolebutyric acid, 0.1mg/L of triacontanol, 0.04mg/L of 14-hydroxy brassin Zi alcohol, 0.0036mg/L of compound sodium nitrophenolate and 200mg/L of potassium fulvate as an ore source.

Furthermore, the purpose of sun-shading, cooling and moisturizing treatment is achieved by adopting an external sun-shading system, a fan-wet curtain system and spraying in the step 4, the root-promoting agent is sprayed 1 time in the morning in the first 9 days, the potassium fulvate serving as a mineral source is sprayed for 50mg/L in the 13 th day, and the raw amino acid powder is sprayed for 150mg/L in the 18 th day.

Further, the root promoting agent sprayed in the step 4 is three different root promoting agents which are sprayed alternately, including:

first, naphthalene acetic acid 2 mg/L+indolebutyric acid 2 mg/L+triacontanol 0.1 mg/L+14-hydroxy brassin catalpol 0.04 mg/L+compound sodium nitrophenolate 0.0036 mg/L+50 mg/L of potassium fulvate as mineral source+150 mg/L of calcium nitrate 100 mg/L+80 mg/L of magnesium sulfate,

second, naphthalene acetic acid 2 mg/L+indolebutyric acid 2 mg/L+triacontanol 0.1 mg/L+14-hydroxy brassin-cholesterol 0.04 mg/L+compound sodium nitrophenolate 0.0036mg/L+150mg/L seaweed extract+50 mg/L chitosan oligosaccharide+calcium nitrate 100mg/L magnesium sulfate 80mg/L,

thirdly, naphthalene acetic acid 2 mg/L+indolebutyric acid 2 mg/L+triacontanol 0.1 mg/L+14-hydroxy brassinosteroid catalpol 0.04 mg/L+compound sodium nitrophenolate 0.0036 mg/L+small peptide fish protein 300 mg/L+calcium nitrate 100 mg/L+magnesium sulfate 80mg/L.

The beneficial effects are that: the application is manufactured by a special plug, increases ventilation to enhance drainage and prevents root system coiling and rot by utilizing the principle of air root pruning, and reduces the water content of a matrix and the occurrence of stem rot by matching with post treatment; inducing a large amount of cuttings to root and shortening the rooting time through continuous stimulation of plant growth regulators such as trace naphthylacetic acid, indolebutyric acid, triacontanol, 14-hydroxy brassin Zi alcohol, compound sodium nitrophenolate and the like; spraying trace amino acid raw powder, mineral source potassium fulvate, seaweed extract, chitosan oligosaccharide and small peptide fish protein to provide a large amount of medium trace elements, free amino acids, oligopeptides, polypeptides, vitamins, nucleotides and unsaturated fatty acids which can be directly absorbed and utilized by the cutting slips, wherein the substances can promote the synthesis of chlorophyll, improve photosynthetic efficiency, enhance stress resistance of the cutting slips, improve rhizosphere microbial activity, improve rhizosphere microecological environment, enable nutrients such as nitrogen, phosphorus, potassium and the like to be fully and effectively absorbed by plants, achieve the effect of inducing and promoting root system generation, and simultaneously also induce the generation of plant resistance proteins and lignin so as to inhibit pathogenic bacteria and reduce the generation of stem rot; magnesium and calcium are important elements synthesized by chlorophyll and cell walls respectively, and the growth of root systems can be induced and promoted by spraying and supplementing the 2 elements. Through the combined application of a plurality of rooting inducers, the division and growth of the meristematic cells of the cutting slips are stimulated, so that the rooting of the cutting slips is accelerated, the rooting quantity is increased, the occurrence of stem rot is reduced, and the stress resistance and the cutting rooting rate of the hydrangea macrophylla in a summer high-temperature environment are improved. The new roots are more in number after the cutting seedlings propagated by the method are planted, and the root system grows rapidly.

Drawings

Figure 1 is a photograph of a dedicated tray of the present application,

FIG. 2-1 is a photograph showing the plant status of a comparative example in an embodiment of the present application,

figures 2-2 are photographs of plant status of examples of embodiments of the present application,

FIG. 3-1 is a photograph showing the survival rate of comparative example cutting seedlings in the embodiment of the present application,

figure 3-2 is a photograph showing the survival rate of cutting seedlings according to an example of the embodiment of the present application,

FIG. 4-1 is a photograph showing the state of a comparative example potted plant in an embodiment of the application,

FIG. 4-2 is a photograph showing the status of a potted plant according to an example of the present application,

FIG. 5 is a plant status diagram showing rot of the base of a part of the cutting in an example embodiment of the present application.

Detailed Description

The present application is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the application and not limiting of its scope, and various modifications of the application, which are equivalent to those skilled in the art upon reading the application, will fall within the scope of the application as defined in the appended claims.

Examples

(1) Manufacturing of special plug

The 72-hole plug is used for cutting, a gap with the length of 1cm is respectively arranged at the middle lower part of the 4 surfaces of each hole so as to enhance drainage and prevent root system coiling and rotting by utilizing the principle of air root pruning,

(2) Preparation of cutting matrix

The volume ratio of the coconut husk to the perlite in the cutting matrix is 1:1, and meanwhile, the macromolecule water-absorbent resin with the diameter of 0.6-0.9mm is added, and the dosage is 1g/L. Spreading the cutting matrix with special plug tray, watering thoroughly for use,

(3) Cutting process

And taking each 1 section of the trimmed branch as 1 cutting, reserving a stem section of 0.5cm on the section, and reserving a stem section of 1.5cm under the section. And (3) immersing the trimmed cutting slips in rooting liquid for 5min, and then inserting the cutting slips into a matrix. The rooting liquid has the formula of 10mg/L of naphthalene acetic acid, 10mg/L of indolebutyric acid, 0.1mg/L of triacontanol, 0.04mg/L of 14-hydroxy brassin-Zi alcohol, 0.0036mg/L of compound sodium nitrophenolate and 200mg/L of potassium fulvate as an ore source.

(4) Post-cutting management

The temperature is reduced as much as possible by adopting a fan-wet curtain system in the greenhouse; the outer sunshade is pulled open completely; spraying for 3-4 times every day, and can not be sprayed in overcast and rainy days; the root promoting agent is sprayed for 1 time in the morning every day, and the formula of the root promoting agent is 3 and is used alternately. The root-promoting agent is 2mg/L of naphthalene acetic acid, 2mg/L of indolebutyric acid, 0.1mg/L of triacontanol, 0.0036mg/L of sodium alginate complex, 50mg/L of potassium fulvate as mineral source, 150mg/L of calcium nitrate, 80mg/L of magnesium sulfate, 2mg/L of naphthalene acetic acid, 2mg/L of indolebutyric acid, 0.1mg/L of triacontanol, 0.04mg/L of 14-hydroxy brassin-beta-ol, 0.0036mg/L of sodium alginate complex, 100mg/L of calcium nitrate, 80mg/L of magnesium sulfate complex, 2mg/L of naphthalene acetic acid, 0.1mg/L of triacontanol, 0.04mg/L of sodium alginate complex, 0.0036mg/L of sodium alginate complex, 300mg/L of small peptide fish protein nitrate, and 100mg/L of magnesium sulfate complex.

Stopping spraying root promoting agent after cutting for 9d, wherein most varieties are rooted, spraying 50mg/L of mineral source potassium fulvate and 150mg/L of amino acid raw powder for 1 time respectively for 13d and 18d of cutting, promoting plant growth, and spraying clear water for moisturizing in the rest time. As shown in figure 1, by preprocessing the plug tray, ventilation is increased to enhance drainage and prevent root system coiling and rot by utilizing the principle of air root pruning, and matching with later rooting treatment, the matrix water content is reduced, the rooting time is shortened, the healthy growth of the root of the hydrangea macrophylla in a high-temperature environment in summer is improved, and the cuttage rooting rate is improved.

Comparative example

4 times of cutting tests are carried out on day 7, day 11, day 7, day 21, day 7, day 31 and day 8, day 10 of 2021, and the cutting varieties are ' endless summer ', ' Miss yarn and ' diffuse rolling and flowing light '. The cutting method is to use a common 72-hole plug, the cutting matrix is compounded by coconut coir and perlite according to the volume ratio of 1:1, each 1 section of the branch is used as 1 cutting spike, 0.5cm stem section is reserved on the section, 1.5cm stem section is reserved under the section, and the cutting spike is immersed in rooting liquid of 10mg/L of naphthylacetic acid and 10mg/L of indolebutyric acid for 5min and then inserted into the matrix. The cutting method of the comparative example was the same as the above example. 3 discs 216 plants were cut per variety.

The rooting time, survival rate, root number and total root length of the plants of the examples and the comparative examples after 20d cutting are counted. The data are shown in table 1.

TABLE 1 rooting time, survival rate after 20d cutting, root number and total root length data table

FIG. 2-2 shows that a large amount of roots are grown after the plant cuttings of the example, the roots grow rapidly, the roots can be rooted on the stem sections which are not inserted into the matrix, and the roots are sparse and weak in the comparative example of FIG. 2-1; FIG. 3-2 shows that the cutting seedlings of the embodiment have significantly improved cutting survival rate compared with the comparative example of FIG. 3-1; FIG. 4-2 shows a potted plant after field planting of the cutting seedlings propagated in the example, wherein the number of new roots of the plant is large and the root system grows rapidly compared with the potted plant after field planting of the cutting seedlings in the comparative example of FIG. 4-1; fig. 5 is a photograph of a plant of an example, and it can be seen that even if the basal part of a cutting slip is rotten, the cutting slip can normally root, and the cutting survival rate is greatly improved by using the cutting method of the application.

Claims (2)

1. The summer cutting propagation method for the hydrangea macrophylla is characterized by comprising the following steps of:

(1) Manufacturing of special plug

A gap with the length of 1cm is respectively arranged at the middle lower part of the peripheral side surface of each hole,

(2) Preparation of cutting matrix

Preparing a mixed cutting matrix containing coconut coir and perlite, adding high molecular water-absorbing resin into the cutting matrix, then paving the prepared cutting matrix into the plug manufactured in the step 1, watering for later use, wherein the volume ratio of the coconut coir to the perlite in the cutting matrix is 1:1, the diameter of the added high molecular water-absorbing resin is 0.6-0.9mm, the dosage is 1g/L,

(3) Cutting process

Taking each section of the pruned branch as 1 cutting slip, leaving a stem section of 0.5cm on the section, leaving a stem section of 1.5cm under the section, soaking the cutting slip for 5min, and then inserting the cutting slip into a plug tray matrix, wherein the rooting liquid comprises the following components: naphthalene acetic acid 10mg/L, indolebutyric acid 10mg/L, triacontanol 0.1mg/L, 14-hydroxy brassin Zi alcohol 0.04mg/L, compound sodium nitrophenolate 0.0036mg/L and potassium fulvate 200mg/L,

(4) Post-cutting management

The cutting seedling with the plug tray adopts an external sunshade, fan-wet curtain system and spray to cool and moisturize the cutting seedling with the plug tray; the root-promoting agent is sprayed for 1 time in the morning in the first 9 days until the cutting shoots are too half to root, 50mg/L of the mineral source potassium fulvate is sprayed for the first 13 days, 150mg/L of the amino acid raw powder is sprayed for the first 18 days, so that the plant growth is promoted, and the matrix moisture and the cutting shoot humidity are only supplemented by spraying in the management process.

2. The summer cutting propagation method for hydrangea macrophylla according to claim 1, wherein the root-promoting agent sprayed in the step 4 is three different root-promoting agents sprayed alternately, and the method comprises the following steps:

first, naphthalene acetic acid 2 mg/L+indolebutyric acid 2 mg/L+triacontanol 0.1 mg/L+14-hydroxy brassin catalpol 0.04 mg/L+compound sodium nitrophenolate 0.0036 mg/L+50 mg/L of potassium fulvate as mineral source+150 mg/L of calcium nitrate 100 mg/L+80 mg/L of magnesium sulfate,

second, naphthalene acetic acid 2 mg/L+indolebutyric acid 2 mg/L+triacontanol 0.1 mg/L+14-hydroxy brassin-cholesterol 0.04 mg/L+compound sodium nitrophenolate 0.0036mg/L+150mg/L seaweed extract+50 mg/L chitosan oligosaccharide+calcium nitrate 100mg/L magnesium sulfate 80mg/L,

thirdly, naphthalene acetic acid 2 mg/L+indolebutyric acid 2 mg/L+triacontanol 0.1 mg/L+14-hydroxy brassinosteroid catalpol 0.04 mg/L+compound sodium nitrophenolate 0.0036 mg/L+small peptide fish protein 300 mg/L+calcium nitrate 100 mg/L+magnesium sulfate 80mg/L.