CN104472233B - A kind of cutting propagation method of willow verbena - Google Patents

Abstract

The invention discloses a cutting propagation method of willow verbena. The present invention adopts the willow-leaved verbena propagation method of terminal bud cutting, removes the broad-leaved verbena from the beginning, and selects the female parent of the narrow-leaved verbena for cutting. The cutting propagation method of willow-leaved verbena of the present invention hardly has the problem of broad-leaved hybrid plants; after the branches on the main stem grow leaves, there are almost no broad leaves, which saves the work of removing broad-leaved hybrid plants compared with sowing and propagation; The plants of the inventive cuttings are robust, neat and have a high survival rate.

Description

A kind of cutting propagation method of willow verbena

technical field

The invention relates to a cultivation and propagation technology of willow verbena, in particular to a cutting propagation method of willow verbena.

Background technique

This year, Willow Verbena has been favored by landscape designers for its swaying figure, elegant flower color, fragrant inflorescence, luxuriant and long flowering period. Its flowering plants can be as high as 1.5cm. Although the flowers are tall, they will not fall down. The soft colors are especially suitable for matching with other plants. They are most suitable as background materials for flower borders. The landscape effect of large-scale group planting is particularly spectacular. Plant in large quantities.

How to successfully plant a large area of spectacular willow verbena landscape has been a concern for many years. There are seeding propagation methods in willow verbena grassland. Although more plants can be obtained in a short period of time, the time from sowing to flowering is relatively long, generally more than 5 months. And the method of sowing propagation has the problem of some verbena broadleaves that have no ornamental value. Under normal circumstances, willow verbena has narrow leaves, but the common willow verbena seeds on the market are generally domestically produced conventional species, so it is easy to be pollinated by insects during the breeding process, resulting in the same genus of brazilian verbena. Hybridization. After hybridization, the leaves of the plants grown from the seeds are wider, and the inflorescences are in the middle of cymes and spikes when they bloom. The flowering period is short, the flower color is dark, and there is basically no ornamental value. The proportion of hybrid verbena broadleaf seeds is about 5%. The wide leaves and narrow leaves cannot be distinguished during the seedling cultivation of this form of seeds. Only after the main stem is drawn out after planting, can the wide leaves and narrow leaves be distinguished on the leaves branched from the main stem. Therefore, if you want to remove the willow verbena For broad-leaved hybrids, it must be carried out about 1 month after planting.

Adopting the propagation of willow-leaf verbena by sowing propagation method like this, in order to obtain the willow-leaf verbena of better ornamental effect, also need loaded down with trivial details screening work.

Contents of the invention

[Technical problem to be solved]

The purpose of the present invention is to solve the problems of long time from sowing to flowering, short flowering period, and wide leaves affecting the viewing effect of Willow Verbena propagated by existing propagation methods, and proposes a cutting propagation method of Willow Verbena.

[Technical solutions]

In order to achieve the above-mentioned technical effect, the present invention takes the following technical solutions:

The present invention adopts the willow-leaved verbena propagation method of terminal bud cutting, removes the broad-leaved verbena from the beginning, and selects the female parent of the narrow-leaved verbena for cutting. The cutting propagation method of willow-leaved verbena of the present invention hardly has the problem of broad-leaved hybrid plants. After the branches on the main stem grow leaves, there are almost no broad leaves, which saves the work of clearing broad-leaf hybrids compared to sowing and propagation.

A cutting propagation method of willow verbena, which comprises the following steps:

A. Preliminary preparation

Prepare a cutting net bag with a diameter of 35-40mm and a height of 800-1000mm, and fill the net bag with a matrix sprayed with carbendazim solution for later use;

The matrix is configured according to the mass ratio of sandy soil and peat soil at a ratio of 1:1.5 to 2.2;

B, cutting treatment

Select the terminal buds of the narrow-leaved willow-leaf verbena as the cuttings, treat the cutting ends of the cuttings with oblique cross-sections, and then quickly dip them in the rooting hormone and insert them into the net bag matrix. The cuttings will not be inclined or inclined;

The length of the spikes is 40-80mm; the cutting time of the spikes is from April to July;

Described rooting hormone is first processed with ethanol, then is configured into the naphthalene acetic acid that concentration is 300mg/L with clear water;

The ear bar is inserted into the mesh bag matrix, and the length of the ear bar buried in the soil is not less than 30 mm;

C, post-maintenance

The cuttings need to be sprayed with carbendazim solution once every two weeks. Generally, after 4 weeks of cutting, they can grow into seedlings and the roots will form clusters; after 2 months of cutting, the plants are strong and can be planted; after planting, water to keep the soil moist.

According to a preferred embodiment of the present invention, in step A and step C, the carbendazim solution is a solution obtained by diluting carbendazim powder 600-800 times with water.

According to another preferred embodiment of the present invention, in step C, the temperature of the post-curing is 18-22°C.

According to another preferred embodiment of the present invention, in step C, the method of colonization is planting in large and small ridges, the distance between large and small ridges is 600 mm, and the distance between small ridges is 400 mm; no more than 6 plants are planted per square meter.

The present invention will be described in detail below.

A cutting propagation method of willow verbena, which comprises the following steps:

A. Preliminary preparation

Prepare a cutting net bag with a diameter of 35-40mm and a height of 800-1000mm, and fill the net bag with a matrix sprayed with carbendazim solution for later use;

Compared with common cuttings, the net bag cutting method used in the present invention is convenient for transplantation, and its survival rate is close to 100%. Compared with ordinary non-container cuttings, the plants are more upright and neat.

The matrix is configured according to the mass ratio of sandy soil and peat soil at a ratio of 1:1.5 to 2.2;

If the substrate is all peat soil, the weight of the substrate is relatively light, and the adaptability of the plants after planting is poor; the effect of using carbendazim solution is to kill bacteria and greatly reduce the possibility of plant infection.

B, cutting treatment

Select the terminal buds of the narrow-leaved willow-leaf verbena as the cuttings, treat the cutting ends of the cuttings with oblique cross-sections, and then quickly dip them in the rooting hormone and insert them into the net bag matrix. The cuttings will not be inclined or inclined;

The rooting rate of the cuttings treated with the rooting hormone is 100%, which greatly improves the seedling rate of the willow verbena cuttings.

The length of the spikes is 40-80mm; the cutting time of the spikes is from April to July;

The cutting time of cuttings is from April to July, so the cutting time is spring cutting. The cutting time is best to be carried out on a cloudy day, in the morning or in the evening, and the water loss of the cuttings during the cutting process should be minimized. The survival rate of cuttings is higher from April to July. Spikes need to use semi-lignified twigs or lignified raw paper strips of the year. Such spikes have a higher survival rate.

Described rooting hormone is first processed with ethanol, then is configured into the naphthalene acetic acid that concentration is 300mg/L with clear water;

The present invention is quickly coated with the rooting hormone before cutting, which is beneficial to the rooting of the cuttings and increases the survival rate of the cuttings.

The ear bar is inserted into the mesh bag matrix, and the length of the ear bar buried in the soil is not less than 30 mm;

It is best to make the leaves face the same direction when cutting the spikes, so that the cuttings are convenient and beautiful, and it is easy to spray evenly and the growth of seedlings is relatively consistent. Water immediately after inserting.

C, post-maintenance

The cuttings need to be sprayed with carbendazim solution once every two weeks. Generally, after 4 weeks of cutting, they can grow into seedlings and the roots will form clusters; after 2 months of cutting, the plants are strong and can be planted; after planting, water to keep the soil moist.

This late maintenance measure can greatly reduce the possibility of the plant being infected with the virus and ensure its robust growth. After cutting the cuttings, pay attention to moisturizing, and try to cut and cut as much as possible.

Willow Verbena is a plant of the Verbena family Verbena family, with a plant height of 60-150 cm. The leaves are oval at seedling stage with cracks on the edges, and the leaves are dark green clusters at the base; the stems are erect, slender and tough. After the flower stem is raised, the leaves become slender like willow leaves, and there are still sharp cracks on the edges. The stem is square, the whole plant has cilia, and the flowering period is from June to October. In cymes, small tube-shaped flowers are born on the top of the flower stem, with a crown diameter of 60cm. The flower color is lavender, and the fragrance is elegant. It is easy to attract bees and butterflies, and is more popular among tourists.

According to a preferred embodiment of the present invention, in step A and step C, the carbendazim solution is a solution obtained by diluting carbendazim powder 600-800 times with water.

According to another preferred embodiment of the present invention, in step C, the temperature of the post-curing is 18-22°C.

According to another preferred embodiment of the present invention, in step C, the method of colonization is planting in large and small ridges, the distance between large and small ridges is 600 mm, and the distance between small ridges is 400 mm; no more than 6 plants are planted per square meter.

The purpose of colonization is to provide more space for plant growth, which is conducive to better photosynthesis of plants. Before planting, it is necessary to ensure that the soil conditions are good. Generally, it is necessary to make preparations for watering, weeding, fertilizing, plowing, and raking. After planting, water thoroughly to ensure that the soil layer 20cm below the soil surface remains moist.

The time from cutting of cuttings to flowering is short, generally about 3 to 4 months.

[beneficial effect]

Compared with the prior art, the present invention has the following beneficial effects:

1, the cutting propagation method of willow-leaved verbena of the present invention is short from cutting to flowering time;

2. The cutting plants of the present invention are robust and neat, with a survival rate of over 95%, good consistency and high commercialization rate;

3. The willow verbena obtained by the cutting propagation method of willow verbena of the present invention hardly has the problem of broad-leaved hybrid plants. After the branches on the main stem grow leaves, there are almost no broad leaves, which saves the work of clearing broad-leaf hybrids compared to sowing and propagation.

detailed description

The present invention will be further elaborated and illustrated below in conjunction with the embodiments of the present invention.

Example 1:

A cutting propagation method of Willow Verbena:

A. Preliminary preparation

Prepare a cuttage net bag with a diameter of 38mm and a height of 900mm, and fill the net bag with the matrix sprayed with carbendazim solution for subsequent use;

The substrate is configured according to the mass ratio of sandy soil and peat soil at a ratio of 1:2; the carbendazim solution is 700 times the total volume of the substrate.

B, cutting treatment

Select the terminal buds of the narrow-leaved willow-leaf verbena as the cuttings, treat the cutting ends of the cuttings with oblique cross-sections, and then quickly dip them in the rooting hormone and insert them into the net bag matrix. The cuttings will not be inclined or inclined;

Described spike length is 60mm; The time of spike cutting is April;

Described rooting hormone is first processed with ethanol, then is configured into the naphthalene acetic acid that concentration is 300mg/L with clear water;

The ear bar is inserted into the mesh bag matrix, and the length of the ear bar buried in the soil is 30mm.

C, post-maintenance

The cuttings need to be sprayed with carbendazim solution once every two weeks. Generally, after 4 weeks of cutting, they can grow into seedlings and the roots will form clusters; after 2 months of cutting, the plants are strong and can be planted; after planting, water to keep the soil wet;

The carbendazim solution sprayed once every two weeks is 700 times the volume of the substrate;

The temperature of the post-curing is 20°C;

The method of colonization is to adopt large and small ridges for planting, the distance between large and small ridges is 600 mm, and the distance between small ridges is 400 mm; 6 plants are planted per square meter.

The plant survival rate of cuttings in this embodiment is 98%, and the time from cutting cuttings to flowering is 3 months, and there is almost no problem of broad-leaved hybrid plants.

Example 2

A cutting propagation method of Willow Verbena:

A. Preliminary preparation

Prepare a cuttage net bag with a diameter of 40mm and a height of 1000mm, and fill the net bag with the matrix sprayed with carbendazim solution for subsequent use;

The substrate is configured according to the mass ratio of sandy soil and peat soil at a ratio of 1:2; the carbendazim solution is 700 times the total volume of the substrate.

B, cutting treatment

Select the terminal buds of the narrow-leaved willow-leaf verbena as the cuttings, treat the cutting ends of the cuttings with oblique cross-sections, and then quickly dip them in the rooting hormone and insert them into the net bag matrix. The cuttings will not be inclined or inclined;

Described spike length is 70mm; The time of spike cutting is July;

Described rooting hormone is first processed with ethanol, then is configured into the naphthalene acetic acid that concentration is 300mg/L with clear water;

The ear bar is inserted into the mesh bag matrix, and the length of the ear bar buried in the soil is 40mm.

C, post-maintenance

The cuttings need to be sprayed with carbendazim solution once every two weeks. Generally, after 4 weeks of cutting, they can grow into seedlings and the roots will form clusters; after 2 months of cutting, the plants are strong and can be planted; after planting, water to keep the soil wet;

The carbendazim solution sprayed once every two weeks is 700 times the volume of the substrate;

The temperature of the post-curing is 20°C;

The method of colonization is planting in large and small ridges, the distance between large and small ridges is 600 mm, and the distance between small ridges is 400 mm; 4 plants are planted per square meter.

The plant survival rate of the cuttage of the present embodiment is 99%.

Although the present invention has been described here with reference to the illustrative examples of the present invention, the above-mentioned examples are only preferred implementations of the present invention, and the implementation of the present invention is not limited by the above-mentioned examples. It should be understood that those skilled in the art Many other modifications and embodiments can be devised which will fall within the scope and spirit of the principles disclosed in this application.

Claims (4)

1. a cutting propagation method of willow leaf verbena, is characterized in that it comprises the following steps: A. Preliminary preparation Prepare a cutting net bag with a diameter of 35-40mm and a height of 800-1000mm, and fill the net bag with a substrate sprayed with carbendazim solution for later use; The matrix is configured according to the mass ratio of sandy soil and peat soil at a ratio of 1:1.5 to 2.2; B, cutting treatment Select the terminal buds of the narrow-leaved willow-leaf verbena as the cuttings, treat the cutting ends of the cuttings with oblique cross-sections, and then quickly dip them in the rooting hormone and insert them into the net bag matrix. The cuttings will not be inclined or inclined; The length of the spikes is 60-70mm; the cutting time of the spikes is from April to July; Described rooting hormone is first processed with ethanol, then is configured into the naphthalene acetic acid that concentration is 300mg/L with clear water; The ear bar is inserted into the mesh bag matrix, and the length of the ear bar buried in the soil is not less than 30mm; C, post-maintenance The cuttings need to be sprayed with carbendazim solution once every two weeks. Generally, after 4 weeks of cutting, they can grow into seedlings and the roots will form clusters; after 2 months of cutting, the plants are strong and can be planted; after planting, water to keep the soil wet; The scion adopts semi-lignified twigs or lignified current-year shoots. 2. The cutting propagation method of willow verbena according to claim 1, characterized in that in step A and step C, the carbendazim solution is a solution in which carbendazim powder is diluted 600-800 times with water. 3. The cutting propagation method of willow-leaved verbena according to claim 1, characterized in that in step C, the temperature of the later maintenance is 18-22°C. 4. the cutting propagation method of willow leaf verbena according to claim 1, is characterized in that in step C, the mode of described field planting is to adopt big and small ridges to plant, and big ridge spacing is 600mm, and small ridge spacing is 400mm; Plant no more than 6 plants per square meter.