CN102960173B - Tender branch cutting method for zelkova schneideriana - Google Patents

Abstract

The invention discloses a beech twig cutting method, which comprises the steps of collecting cuttings, treating the cuttings and managing the cuttings. The present invention uses delicate branches with a diameter of 0.066 to 0.167 cm as cuttings for cuttings, and more cuttings can be harvested in the ear-picking gardens with the same conditions, and the rooting rate reaches 78.5%. Compared with hard branch cuttings, this method can obtain Higher reproductive efficiency.

Description

A kind of beech twig cutting method

1. Technical field

The invention relates to the technical field of tree seedling cultivation, in particular to a beech twig cutting method.

2. Background technology

Beech (Zelkova schneideriana) belongs to the Ulmaceae family (Ulmaceae family) Zelkova (Zelkova), large deciduous trees, distributed in the eastern Mediterranean to eastern Asia, about 10 species. It is mainly produced in the vast area from the Liaodong Peninsula to the east of the southwest. It has the characteristics of long tree age, wind resistance, early morning resistance, less pests and diseases, and excellent materials. Beech wood is dense and hard, has beautiful texture, is not easy to stretch and bend, and has strong corrosion resistance. It is a high-quality wood for shipbuilding, bridges, and production of various high-end furniture and handicrafts. It belongs to high-end hard broad-leaved timber species. Stem bark is fibrous and rich in content, and is the raw material for making rayon, rope and paper. The root system of the tree is developed, which can hold water and soil, maintain water sources, improve soil air permeability and structure, and is a good water and soil conservation tree species. The shape of the tree is beautiful, the crown of the tree is large, and the leaf color changes in different seasons. Therefore, it is also a traditional color leaf garden tree species and an important landscaping landscape tree species that are loved by people. Due to the high economic, ecological and landscape use value of zelkova, and the shortage of existing zelkova resources, zelkova was listed as a second-level national key protected wild plant in the first batch of "List of National Key Protected Wild Plants".

Beech has small flowers, severe flower and fruit drop, and the seed setting rate is only about 10%. It has been listed as a national second-class protected plant. At this stage, my country mainly relies on imports of beech timber. At present, research on asexual reproduction technology of beech has been carried out in an all-round way. For the grafting of beech trees, white elm is generally used as the rootstock, and the grafting survival rate can reach more than 80%. Some progress has been made in the study of tissue culture of beech, but the ability of large-scale seedling cultivation has not yet been formed. The hard branch cuttings of beech trees have achieved good results, with a rooting survival rate of up to 93%, and the diameter of the branches used is generally 0.6-1.0cm. The twig cuttings of zelkova have also been reported, but the cuttings used are still relatively thick, with a diameter ranging from 0.4 to 0.6 cm, and the highest rooting rate is only 73.5%, which is not ideal.

3. Contents of the invention

The purpose of this invention is to provide a kind of beech twig cuttage method, utilize the beech young tender branch to carry out cuttage to obtain beech tree rooted seedling, compare with hard branch cuttage, this kind of method can be adopted in the ear garden of equal condition Get more cuttings, so as to obtain higher reproductive efficiency.

The present invention achieves the above object through the following technical solutions, a method for cutting beech twigs, comprising the steps:

1. Collection of cuttings

Select the plants that grow robustly and are free from diseases and insect pests as the mother tree for picking ears. The materials used are semi-lignified terminal buds or lateral buds of the two-year-old beech tree and semi-lignified new buds of the four-year-old beech tree after felling stumps. The collection time is from March to May, and the cutting diameter ranges from 0.066 to 0.167cm. It is 0.101cm. The length of beech cuttings is 4-8cm, and 2-7 buds are reserved on each cutting, and the cutting method is flat cutting.

2. Treatment of cuttings

Use a transparent plastic bag with a diameter of 7 cm and a height of 11 cm as a seedling bag; use red heart soil as a seedling substrate, and disinfect the red heart soil substrate with 0.3 to 0.5% potassium permanganate a few days before cutting, drench with tap water the day before cutting, Rinse off the potassium permanganate.

Cut off part of the leaves of the cuttings, leaving only 1/2 of the top 1-3 leaves, soak the base of the cuttings with 400 mg·L ^-1 ABT6 (GGR) rooting powder for 16 hours, and then insert into the red core soil.

3. Cutting management

Immediately after inserting, pour water once, and use a full-sun intermittent spraying system in the later stage to keep the red heart soil moist. At the same time, avoid high temperature and strong sunlight, and pull the sunshade net between 10 am and 4 pm when the sun is strong. The nursery site should be ventilated and well drained. When necessary, 800-1000 times of carbendazim, thiophanate and other pesticides can be sprayed to prevent and control the harm of germs.

Compared with the prior art, the present invention has the following prominent substantive features and significant progress:

1. Due to the use of tender branches with a diameter of 0.066-0.167cm as cuttings for cuttings, more cuttings can be harvested in the ear-picking nursery with the same conditions, thereby obtaining higher reproduction efficiency;

2. Using twigs of zelkova as cuttings to obtain rooted seedlings of zelkova can not only achieve the purpose of mass breeding and utilization of the tree species, but also achieve the purpose of protecting the germplasm resources of endangered trees, and the rooting survival rate can reach 78.5%.

4. Specific implementation

The technical solution of the present invention will be further described below through specific examples.

Example 1

Beech twig cutting method of the present invention, comprises the steps:

1. Choose to collect cuttings mother tree

Select the plants that grow robustly and are free from diseases and insect pests as the mother tree for picking ears.

2. Cutting selection and cutting cutting

The materials used are semi-lignified terminal buds or side buds of the two-year-old beech tree and semi-lignified new buds of the four-year-old beech tree after felling stumps. The collection time is from March to May, and the location is Nanning, Guangxi. The diameter of the cuttings is 0.066cm, the length of the cut beech cuttings is 4cm, and 2 buds are reserved on each cutting, and the cutting method is flat cutting.

3. Treatment method of seedling substrate

Red heart soil is used as the seedling substrate, and the red heart soil substrate is disinfected with 0.3% potassium permanganate a few days before cutting, and the day before cutting, it is drenched with tap water to wash away potassium permanganate.

4. Choose a seedling container

Seedling cultivation bag adopts diameter 7cm, and height is the transparent plastic bag of 11cm.

5. Treatment method of cuttings

Cut off part of the leaves of the cuttings, leaving only 1/2 of the top leaf, soak the base of the cuttings with 400 mg·L ^-1 ABT6 (GGR) rooting powder for 16 hours, and then insert into the red core soil.

6. Cutting management

Immediately after inserting, pour water once, and then use a full-sun intermittent spraying system to keep the red heart soil moist. At the same time, avoid high temperature and strong sunlight, and pull the sunshade net between 10 am and 4 pm when the sun is strong.

The nursery site should be ventilated and well drained. When necessary, 800 times of carbendazim, thiophanate and other pesticides can be sprayed to prevent the harm of germs.

Example 2

1. Choose to collect cuttings mother tree

Select the plants that grow robustly and are free from diseases and insect pests as the mother tree for picking ears.

2. Cutting selection and cutting cutting

The materials used are semi-lignified terminal buds or lateral buds of the two-year-old beech tree and semi-lignified new buds of the four-year-old beech tree after felling stumps. The collection time is from March to May, and the location is Nanning, Guangxi. The diameter of cuttings is about 0.101cm. The length of cut beech cuttings is about 6cm, and 4 to 5 buds are reserved on each cutting, and the cutting method is flat cutting.

3. Treatment method of seedling substrate

Red heart soil is used as the seedling substrate, and the red heart soil substrate is disinfected with 0.4% potassium permanganate a few days before cutting, and the day before cutting, it is drenched with tap water to wash away potassium permanganate.

4. Choose a seedling container

Seedling cultivation bag adopts diameter 7cm, and height is the transparent plastic bag of 11cm.

5. Treatment method of cuttings

Cut off part of the leaves of the cuttings, leaving only 1/2 of the top two leaves, soak the base of the cuttings with 400 mg·L ^-1 ABT6 (GGR) rooting powder for 16 hours, and then insert into the red core soil.

6. Cutting management

Immediately after inserting, pour water once, and use a full-sun intermittent spraying system in the later stage to keep the red heart soil moist. At the same time, avoid high temperature and strong sunlight, and pull the sunshade net between 10 am and 4 pm when the sun is strong.

The nursery site should be ventilated and well drained. When necessary, 900 times of carbendazim, thiophanate and other pesticides can be sprayed to prevent the harm of germs.

Example 3

1. Choose to collect cuttings mother tree

Select the plants that grow robustly and are free from diseases and insect pests as the mother tree for picking ears.

2. Cutting selection and cutting cutting

The materials used are semi-lignified terminal buds or lateral buds of the two-year-old beech tree and semi-lignified new buds of the four-year-old beech tree after felling stumps. The collection time is from March to May, and the location is Nanning, Guangxi. Cutting diameter is 0.167cm. The beech cuttings length of cutting is 8cm, and 7 buds are reserved on every branch cuttings, and the cutting mode is flat cutting.

3. Treatment method of seedling substrate

Red heart soil is used as the seedling substrate, and the red heart soil substrate is disinfected with 0.5% potassium permanganate a few days before cutting, and the day before cutting, it is drenched with tap water to wash away potassium permanganate.

4. Choose a seedling container

Seedling cultivation bag adopts diameter 7cm, and height is the transparent plastic bag of 11cm.

5. Treatment method of cuttings

Cut off part of the leaves of the cuttings, leaving only 1/2 of the top three leaves, soak the base of the cuttings with 400mg·L ^-1 ABT6 (GGR) rooting powder for 16 hours, and then insert into the red core soil.

6. Cutting management

Immediately after inserting, pour water once, and use a full-sun intermittent spraying system in the later stage to keep the red heart soil moist. At the same time, avoid high temperature and strong sunlight, and pull the sunshade net between 10 am and 4 pm when the sun is strong.

The nursery site should be ventilated and well drained. When necessary, 1000 times of carbendazim, thiophanate and other pesticides can be sprayed to prevent the harm of germs.

Claims (1)

1. beech are set the epicormic branch cuttage method, it is characterized in that the method may further comprise the steps:

1.1 the collection of plugged ear

Select robust growth, without the plant of damage by disease and insect as scion-seed tree, material therefor be 2 years living beech trees give birth to then the new rudiment of semi-lignified after semi-lignified terminal bud or lateral bud and 4 years livings beech are set stump, acquisition time is 3 ~ May, and the diameter scope is 0.066～0.167cm, average out to 0.101cm, beech tree cutting length is 4 ~ 8cm, keep 2 ~ 7 buds on every stem cutting fringe, cut mode is truncation

1.2 the processing of plugged ear

Adopt diameter 7cm, highly be the transparent plastic bag of 11cm as Seedling bag, employing red heart soil is as seedling medium, the front a few days of cuttage carries out disinfection to red heart soil matrix matter with 0.3～0.5% potassium permanganate, cuttage is drenched with running water the previous day, washes out potassium permanganate,

Cut the partial blade of plugged ear, only stay 1/2 of 1～3 leaf in top, use 400mgL ^-1ABT6 GGR root-inducing powder soak plugged ear base portion 16h after, insert red heart soil,

1.3 cuttage management

Drench water immediately once after inserting, later stage is adopted intermittent spraying system full sun, keep red heart soil moistening, to avoid high temperature and intense light irradiation simultaneously, draw sunshade net in the stronger period of sunlight, the place of growing seedlings is ventilated, requires simultaneously drainage good at 4 o'clock in 10 o'clock～afternoon in the morning, can spray 800～1000 times carbendazim, topsin agricultural chemicals in the time of necessary, in case the harm of the bacterium of curing the disease.