CN108811821B

CN108811821B - Method for promoting garden plant green branch cutting rooting

Info

Publication number: CN108811821B
Application number: CN201810830405.6A
Authority: CN
Inventors: 彭向永; 宋敏; 刘俊祥; 赵利清; 程运河
Original assignee: Qufu Normal University
Current assignee: Qufu Normal University
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2021-03-23
Anticipated expiration: 2038-07-26
Also published as: CN108811821A

Abstract

The invention discloses a method for promoting cutting rooting of green branches of garden plants, which comprises the steps of preparing a seedbed, selecting strong semi-lignified branches without diseases and insect pests of a mother tree in the current year in summer and autumn, immersing the collected whole seed strips in an aqueous solution of carbendazim and dithiothreitol, cutting off the lower seed strips under water, discarding the lower seed strips, cutting the seed strips into cutting slips, keeping a plurality of buds for each cutting slip, and keeping upper leaves; cutting the lower end of the cutting into an oblique opening and cutting the upper end into a flat opening, soaking in an aqueous solution, and soaking the lower end part of the cut cutting in a rooting powder solution for a period of time; inserting the seedlings into a seedbed, immediately watering the seedlings thoroughly after cuttage, making an arched shed on the seedbed, covering a plastic film, and covering a sunshade net on the plastic film; spraying water and moisture supplement every day, stopping spraying at night and in rainy days, alternately spraying a urea solution and a Hoagland nutrient solution every few days, and spraying carbendazim; after selecting the seedlings, the seedlings can be taken out of the greenhouse and enter a nursery garden. The invention has the advantages of early rooting and high first-grade finished seedling rate.

Description

Method for promoting garden plant green branch cutting rooting

Technical Field

The invention belongs to the technical field of plant propagation, and relates to a method for promoting garden plant green branch cutting rooting.

Background

The garden plant green branch cuttage is also called twig cuttage and soft branch cuttage. The semi-lignified green branch is used as a cutting shoot for cutting seedling raising, and due to the fact that the content of auxin in the tender branch is high, the tissue is tender, the meristem is active, and the top bud and the leaf have the function of synthesizing the auxin, the generation of callus and rooting can be promoted, and the survival is easy. The green branch cuttage is generally carried out in 6-9 months, the current cuttage method is suitable for garden plants which are easy to root, but the garden plants which are difficult to root are low in rooting rate, low in first-level finished seedling rate, poor in seedling quality and low in implementation efficiency.

Disclosure of Invention

The invention aims to provide a method for promoting garden plant green branch cuttage rooting, and the method has the advantages that the method is adopted for green branch cuttage seedling raising, the rooting is early, the root system is developed, the plant grows strongly, and the first-level finished seedling rate is high. The invention can obviously improve the survival rate and the seedling quality and greatly improve the seedling raising efficiency of landscape plants.

The technical scheme adopted by the invention comprises the following steps:

1) preparing a seedbed: building a seedbed wall by using bricks, paving large cobblestones on the lower layer of the bed, paving small cobblestones on the middle layer, paving a cuttage matrix on the upper layer, spraying carbendazim on the seedbed before cuttage, and sterilizing;

2) collecting seed strips: in summer and autumn, selecting strong semi-lignified branches without diseases and insect pests of the current year of the mother tree, collecting seed strips, and before cutting the seed strips into cuttings, keeping the leaves and the length complete and not cutting the cuttings due to overlong seed strips;

3) and (3) cutting treatment: immersing the collected seed strips in a carbendazim and dithiothreitol aqueous solution, shearing the lower ends of the seed strips, discarding the seed strips, shearing the seed strips into cutting slips, keeping a plurality of buds of each cutting slip and keeping upper leaves; the lower end of the cutting is cut into an oblique opening, and the upper end is cut into a flat opening. All the operations are performed underwater, the branches can not be cut off by exposing in the air, and after the cuttings are cut, the cuttings are continuously soaked in the aqueous solution and bound into bundles; soaking the lower end part of the cut cutting shoot in the rooting powder solution for a period of time;

4) cuttage: the cutting slips after the rooting powder treatment are immediately inserted into a seedbed, water is immediately poured after cutting, an arched shed is made on the seedbed, a plastic film is covered, and a sunshade net is covered on the plastic film;

5) and (3) management after rooting: spraying water and moisture supplement at regular time every day, stopping spraying at night and rainy days, alternately spraying a urea solution and a Hoagland nutrient solution every few days, and spraying carbendazim;

6) and (4) shed discharging: after the rooting landscape plant is cut, the axillary buds germinate, a plurality of roots begin to grow, strong and tidy cutting seedlings are obtained, the seedlings are hardened through greenhouse opening, and the seedlings can be taken out of the greenhouse and enter a seedling nursery after being selected.

Further, step 1) preparing a seedbed: building a seedbed wall by bricks, wherein the width of the seedbed wall is 1.0-1.2m, the height of the seedbed wall is 0.5-0.6m, the lower layer of the seedbed is paved with large cobblestones of 10-15cm, the middle layer is paved with small cobblestones of 10-15cm, the upper layer is paved with a cuttage matrix of 25-30cm, the seedbed is sprayed with 600 times of carbendazim one day before cuttage, and then the seedbed is sterilized and disinfected, and an automatic control spraying system is erected on the seedbed.

Further, step 2) collecting seed strips: in summer and autumn, generally in 6-9 months, selecting strong semi-lignified branches without diseases and insect pests of the current year of a mother tree, collecting seed strips, wherein the time for collecting the seed strips is 8:00 in the morning, and before cutting into cuttings, keeping leaves and length intact and not cutting off the cuttings due to overlong seed strips;

further, step 3) cutting treatment: immersing the collected whole seed strips in an aqueous solution containing 1500 times of carbendazim and 0.05% of dithiothreitol, cutting 5-10cm branches at the lower end, discarding, cutting the seed strips into 10-15cm cuttings, wherein each cutting retains 2-3 buds and 1-2 leaves at the upper part; the lower end of the cutting is cut into a 45-degree oblique opening, the upper end is cut into a flat opening, the operations are all performed under water and can not be exposed in the air to cut the cutting, after the cutting is cut, the cutting is continuously soaked in the water solution for 1 to 2 hours and is bound into a bundle, the part 2 to 3cm below the cut cutting is soaked in 500 times of the ABT rooting powder for 1.5 to 2 hours;

further, step 4) cutting: the cutting slips after the rooting powder treatment are immediately inserted into a seedbed, the row spacing is 6 multiplied by 10cm, 180 cuttings are planted in each square meter, the depth is 8-10cm, water is immediately poured after the cutting, an arch shed of 75-80cm is arranged on the seedbed, a plastic film is covered, and a sun-shading net of 60 meshes is covered on the plastic film;

further, step 5) management after rooting: before the end of 9 months, setting the spraying time to be 8:00-18:00 every day, automatically spraying for 30s every 20min, after the end of 9 months, automatically spraying for 20s every 30min, replenishing water and moisturizing, stopping spraying at night and in rainy days, alternately spraying 800 times of urea solution and 1/2 times of Hoagland nutrient solution every 7 days, and spraying 800 times of carbendazim;

further, step 6) shed-discharging: the rooted garden plant stems are rich in vitality, axillary buds germinate, multiple roots begin to grow to obtain strong and tidy cutting seedlings, the greenhouse is opened for hardening seedlings for 2-4 weeks, and the seedlings can be taken out of the greenhouse and enter a seedling nursery for planting after being selected.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

1) Preparing a seedbed: the method comprises building a seedbed wall with bricks, wherein the width of the bed is 1.0-1.2m, the height is 0.5-0.6m, the bottom layer is paved with large cobblestones 10-15cm, the middle layer is paved with small cobblestones 10-15cm, and the upper layer is paved with cutting medium 25-30cm, such as vermiculite, fine river sand, perlite, etc. One day before cuttage, spraying 600 times of carbendazim on the seedbed, and sterilizing. An automatic control spraying system is erected on the seedbed.

2) Collecting seed strips: in summer and autumn, in 6-9 months generally, the annual strong semi-lignified branch without diseases and insect pests of the mother tree is selected to collect seed strips. The time for collecting the seed strips should be selected 8:00 in the morning, at which time the photosynthesis and metabolism level is low. Before the collected seed strips are not cut into cutting slips, the leaves and the lengths of the collected seed strips need to be kept complete, and the seed strips cannot be cut due to overlong seed strips.

3) And (3) cutting treatment: immersing the collected whole seed strips in an aqueous solution containing 1500 times of carbendazim and 0.05% of dithiothreitol, cutting 5-10cm branches at the lower end, discarding, cutting the seed strips into 10-15cm cuttings, wherein 2-3 buds are reserved in each cutting and 1-2 leaves at the upper part are reserved; the lower end of the cutting is cut into a 45-degree oblique opening, and the upper end is cut into a flat opening. All the operations are performed under water, and the cutting slips cannot be cut by being exposed in the air. After the cutting slips are cut, the cutting slips are continuously soaked in the water solution for 1 to 2 hours and bound into bundles. And (3) soaking the cut part 2-3cm below the cutting shoot in 500 times of ABT rooting powder for 1.5-2 hours.

4) Cuttage: the cutting slips after the rooting powder treatment are immediately inserted into a seedbed, the row spacing of the plants is 6 multiplied by 10cm, 160-180 plants are cut per square meter, and the depth is 8-10 cm. And immediately watering thoroughly after cuttage. Making 75-80cm arched shed on the seedbed, covering with plastic film, and covering with 60 mesh sunshade net. Compared with the common cutting method in production, the rooting rate is improved by 8.4-15.1%, and the rooting time is advanced by 2-3 days.

5) And (3) management after rooting: before the end of 9 months, the spraying time is set to be 8:00-18:00 every day, the spraying is automatically carried out for 30s every 20min, after the end of 9 months, the spraying is automatically carried out for 20s every 30min, and the water is supplemented and the moisture is supplemented. Spraying was stopped at night and in rainy days. Spraying 800 times of urea solution and 1/2 times of Hogland (Hogland) nutrient solution alternately once every 7 days, and spraying 800 times of carbendazim.

6) And (4) shed discharging: the rooted garden plant stems are rich in vitality, axillary buds germinate, and multiple roots begin to grow to obtain robust and tidy cutting seedlings. After 2-4 weeks of greenhouse opening and seedling hardening, the seedlings can be taken out of the greenhouse and put into a nursery garden for planting after seedling selection.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.

Claims

1. A method for promoting garden plant green branch cutting rooting is characterized by comprising the following steps:

1) preparing a seedbed: building a seedbed wall by using bricks, wherein the width of the seedbed wall is 1.0-1.2m, the height of the seedbed wall is 0.5-0.6m, the lower layer of the seedbed is paved with large cobblestones of 10-15cm, the middle layer is paved with small cobblestones of 10-15cm, the upper layer is paved with a cuttage matrix of 25-30cm, the seedbed is sprayed with 600 times of carbendazim one day before cuttage, and then is sterilized and disinfected, and an automatic control spraying system is erected on the seedbed;

2) collecting seed strips: selecting strong semi-lignified branches without diseases and insect pests of the current year of the mother tree in 6-9 months, collecting seed strips, wherein the time for collecting the seed strips is 8:00 in the morning, the photosynthesis and metabolism level are low, and the collected seed strips are not cut into cuttings, and leaves and the length of the collected seed strips are kept complete and cannot be cut off due to overlong seed strips;

3) and (3) cutting treatment: immersing the collected whole seed strips in an aqueous solution containing 1500 times of carbendazim and 0.05% of dithiothreitol, cutting 5-10cm branches at the lower end, discarding, cutting the seed strips into 10-15cm cuttings, wherein 2-3 buds are reserved in each cutting and 1-2 leaves at the upper part are reserved; the lower end of the cutting is cut into a 45-degree oblique opening, the upper end is cut into a flat opening, the operations are all performed under water and can not be exposed in the air to cut the cutting, after the cutting is cut, the cutting is continuously soaked in the water solution for 1 to 2 hours and is bound into a bundle, the part 2 to 3cm below the cut cutting is soaked in 500 times of the ABT rooting powder for 1.5 to 2 hours;

4) cuttage: the cutting slips after the rooting powder treatment are immediately inserted into a seedbed, the row spacing is 6 multiplied by 10cm, 180 cuttings are planted in each square meter, the depth is 8-10cm, water is immediately poured after the cutting, an arch shed of 75-80cm is arranged on the seedbed, a plastic film is covered, and a sun-shading net of 60 meshes is covered on the plastic film;

5) and (3) management after rooting: before the end of 9 months, setting the spraying time to be 8:00-18:00 every day, automatically spraying for 30s every 20min, after the end of 9 months, automatically spraying for 20s every 30min, replenishing water and moisturizing, and stopping spraying at night and rainy days; alternately spraying 800 times of urea solution and 1/2 times of Hoagland nutrient solution once every 7 days, and spraying 800 times of carbendazim;

6) and (4) shed discharging: the rooted garden plant stems are rich in vitality, axillary buds germinate, multiple roots begin to grow to obtain strong and tidy cutting seedlings, the strong and tidy cutting seedlings are hardened through opening a greenhouse for 2-4 weeks, and the seedlings can be taken out of the greenhouse and enter a seedling nursery for planting after being selected.