KR20230103105A - Strawberry Propagation Method Using Low Temperature-Darkness Treatment - Google Patents

Abstract

The present invention relates to a method for raising strawberry seedlings that promotes the differentiation of strawberry flower buds using low-temperature darkness treatment so that strawberry producers can directly determine the shipping time. Collecting seedlings aged 50 to 60 days by raising seedlings, maintaining the temperature and humidity within a certain range to promote flower differentiation of the collected seedlings, and performing a low-temperature cooling treatment in the dark for a certain time, and through the cooling treatment Applying a culture solution of EC 0.8 dS / m to the root of the potted seedling, and planting in a greenhouse.

Description

Strawberry Propagation Method Using Low Temperature-Darkness Treatment}

The present invention relates to a method for raising strawberry seedlings that promotes the differentiation of flower buds of strawberries using low-temperature dark treatment and thereby controls the production period.

The propagation method of strawberry seedlings is propagated by vegetative reproduction through stems rather than germination through seeds. In particular, strawberries are cultivated in the form of rooting and rooting of stems in contact with the ground while the stems extend. In strawberry growers, breeding in the form of vegetative reproduction through stems is commonly referred to as runner breeding. Strawberry seedlings were usually raised in the open field using the characteristics of these crops.

Strawberry runner generation is promoted in high temperature and long day conditions, but it is difficult to secure high-quality, excellent seedlings due to the high temperature from March to August, which is the period of raising seedlings in Korea, and flower bud differentiation is induced only under low temperature single conditions, so only during the season changing from summer to autumn. Strawberry production is difficult from May to early November when flowers are formed.

As a technique for accelerating the strawberry harvest season, there is a method of artificially advancing flower bud differentiation. Strawberry flower bud differentiation is affected by complex factors such as low temperature, single condition, and nitrogen concentration. After differentiation, growth is promoted in long days. have

In this way, among the various methods for controlling the production period by promoting the differentiation of strawberry flower buds, we propose a method of promoting flower differentiation using low-temperature dark treatment and raising strawberry seedlings through this.

One aspect of the present invention relates to a method for raising strawberry seedlings by using characteristics of strawberries that differentiate into flower pots under low-temperature cooling conditions.

Strawberry seedling method using low-temperature dark treatment according to an embodiment of the present invention includes the steps of (a) preparing different culture solutions according to seedling period; (b) raising daughter seedlings of strawberries and harvesting seedlings 50 to 60 days old; (c) maintaining the temperature and humidity within a certain range and subjecting the collected seedlings to low temperature cooling for a certain period of time in a dark state to promote flower bud differentiation; and (d) applying a culture medium having an EC of 0.8 dS/m to the roots of seedlings differentiated through the cooling treatment and planting in a greenhouse.

According to one embodiment of the present invention, in the step (a), a culture solution with a concentration of 0.4 to 0.6 dS / m used in the early seedlings and a culture solution with a concentration of 0.6 to 0.8 dS / m used in the late seedlings are prepared, The prepared culture medium can be stored by maintaining it at pH 5.5-6.0.

, 습도를 60~80 %로 유지하고, 300~400 시간 동안 냉각 처리하되, 채취된 묘가 식재된 트레이 간 온도편차를 줄일 수 있도록 순환 냉각 방식으로 냉각 처리할 수 있다.According to an embodiment of the present invention, in the step (c), the temperature is -2 to 2

, the humidity is maintained at 60 to 80%, and the cooling treatment is performed for 300 to 400 hours, but the cooling treatment can be performed by a circulation cooling method to reduce the temperature deviation between the trays in which the collected seedlings are planted.

According to one embodiment of the present invention, the seedlings collected in step (c) may have 3 to 5 or more leaves and a crown diameter of 1 cm or more.

According to another embodiment of the present invention, strawberries grown by the above-described method for raising strawberry seedlings using the low-temperature darkening treatment are included.

According to the present invention, strawberry producers can directly determine the time of shipment by promoting flower bud differentiation using low-temperature darkness treatment, and through this, strawberries are shipped during non-production period to enable high-value agriculture and seedling cultivation. It can reduce manpower and time accordingly.

In addition, the present invention can prevent productivity from deteriorating due to pests by improving the cultivation environment of strawberry seedlings.

1 is a flow chart showing the sequence of a method for raising seedlings for strawberry production using low-temperature dark treatment according to an embodiment of the present invention.
2 is a photograph of the progress of raising strawberry daughter seedlings according to an embodiment of the present invention.
3 is an external and internal photograph of a low temperature cooling treatment facility according to an embodiment of the present invention.
4 is a photograph of seedlings after low-temperature cooling treatment according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description may be omitted. In addition, the terms used in this specification are terms used to appropriately express preferred embodiments of the present invention, which may vary according to the intention of a user or operator or customs in the field to which the present invention belongs. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components rather than excluding other components.

Hereinafter, the strawberry seedling method using dark cooling of the present invention will be described in detail.

As used herein, the term "strawberry" has a long petiole and has three relatively large leaves, each of which is round and has a serrated edge. The stamen is yellow, and the ovary does not develop to become a fruit, but the flower jaw develops to become fleshy.

1 is a flow chart showing the sequence of a seedling raising method for strawberry production using low-temperature dark treatment according to an embodiment of the present invention, and FIGS. 2 to 4 are experimental photos of FIG. 1 .

1, the method for raising strawberry seedlings according to an embodiment of the present invention includes different culture solution preparation steps (S10), seedling collection steps (S20), low-temperature cooling treatment steps (S30), and greenhouse planting steps (S40). include

In the culture solution preparation step (S10), culture solutions of different concentrations to be used according to the seedling period may be prepared. The composition ratio of the culture medium is shown in <Table 1>.

item result unit NO ₃ -N 0.40 mg/L K 1.49 mg/L Ca 30.4 mg/L Mg 12.3 mg/L Na 29.2 mg/L Cl 22.1 mg/L SO ₄ ^2- 16.4 mg/L HCO ₃ ^- 133 mg/L

The culture medium can be prepared in the culture medium used in the early seedlings and the culture medium used in the late seedlings, respectively, the initial culture medium concentration is prepared at 0.4 ~ 0.6 dS / m, and the late culture medium concentration is prepared at 0.6 ~ 0.8 dS / m , The prepared culture medium is maintained at pH 5.5 ~ 6.0 and stored.

In the daughter seedling collection step (S20), daughter seedlings of strawberries are raised and seedlings 50 to 60 days old are collected. The seedlings are raised for 50 to 60 days to sufficiently develop roots, so that the seedlings have 3 to 5 or more leaves and a crown thickness of 1 cm or more. 2 is a photograph of the progress of raising strawberry daughter seedlings according to an embodiment of the present invention.

In the low-temperature cooling treatment step (S30), a low-temperature cooling treatment may be performed to promote flower bud differentiation of the collected seedlings.

The main purpose of the low-temperature cooling treatment is to break the dormancy of strawberries through artificial low-temperature treatment to overcome the characteristics of strawberries that enter dormancy in winter, to stimulate growth, and to create the same conditions for flower bud differentiation to identify the right time for strawberry production , through which the yield and harvesting time can be predicted.

로 유지하고, 300~400 시간 동안 냉각 처리할 수 있다. 냉각 시간이 400 시간을 넘을 경우, 액화방 분화가 이루어지지 않고 런너가 출현하여 수량이 떨어지는 문제가 발생할 수 있다.In the low-temperature cooling treatment step (S30), the collected seedlings are planted on a tray for raising seedlings to sufficiently supply moisture, and then the tray with the seedlings is put into a low-temperature cooling treatment facility to set the temperature in the dark to -2 to 2

and can be cooled for 300 to 400 hours. If the cooling time exceeds 400 hours, liquefaction prevention is not differentiated and runners appear, which may cause a problem in that the amount of water drops.

3 is a photograph of the exterior and interior of a low-temperature cooling treatment facility according to an embodiment of the present invention, and a three-stage shelf capable of holding trays is installed inside the facility, and trays can be installed for each stage.

A humidifier is installed inside the low-temperature cooling treatment facility to maintain the internal humidity at 60-80% to prevent excessive moisture loss of the seedlings planted in the tray.

A plurality of temperature sensors are installed inside the low-temperature cooling treatment facility to keep the internal temperature constant, and by installing a cooler to adopt a circulation cooling method, the cooling air is forcibly circulated to reduce the temperature deviation for each stage.

A ventilation hole may be provided on the wall of the low-temperature cooling treatment facility to circulate internal air.

During the low-temperature cooling treatment, the diameter of the crown (crown) of the collected seedlings should be grown over 10 mm to increase the rate of flower differentiation. In the case of cooling treatment for low-grade seedlings with a crown diameter of less than 10 mm, flower bud differentiation may not occur uniformly.

4 is a photograph of seedlings after low-temperature cooling treatment according to an embodiment of the present invention.

In the greenhouse planting step (S40), the culture solution is applied to the roots of the low-temperature cooled seedlings with an electrical conductivity of 0.8 [dS/m], and it is planted in the greenhouse.

Through the method of raising strawberry seedlings using low-temperature dark treatment according to the present invention, it is possible to significantly reduce labor costs by significantly shortening the period from seedlings to strawberry production from 10 months to 3 to 5 months.

Above all, it complements the shortcomings of strawberries, which can only be grown in countries with distinct four seasons, and improves from the existing 1-crop structure to 3-crop structure, enabling efficient hair growth production, and improving the strawberry hair-rearing cultivation environment to prevent diseases and pests. productivity loss can be prevented.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. For example, even if the described techniques are performed in a different order from the described method, and/or the described components are combined or combined in a different form than the described method, or substituted or replaced by other components or equivalents. Appropriate results can be achieved. Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

Claims (5)

(a) preparing different culture solutions according to the seedling period;
(b) raising daughter seedlings of strawberries and harvesting seedlings 50 to 60 days old;
(c) maintaining the temperature and humidity within a certain range and performing a low-temperature cooling treatment for a certain period of time in a dark state to promote flower bud differentiation of the collected seedlings; and
(d) applying a culture solution of EC 0.8 dS/m to the roots of the seedlings differentiated through the cooling treatment and planting in a greenhouse;
containing
Strawberry seedling method using low-temperature dark treatment.
According to claim 1,
In step (a),
A culture medium with a concentration of 0.4 ~ 0.6 dS / m used at the beginning of seedlings and a culture medium with a concentration of 0.6 ~ 0.8 dS / m used in the late period of seedlings are prepared, and the prepared culture medium is maintained at pH 5.5 ~ 6.0 and stored.
Strawberry seedling method using low-temperature dark treatment.
According to claim 1,
In the step (c),
Temperature -2~2

, Maintain the humidity at 60 ~ 80%, and cool for 300 ~ 400 hours, cooling by circulation cooling method to reduce the temperature deviation between the trays in which the collected seedlings are planted,
Strawberry seedling method using low-temperature dark treatment.
According to claim 1,
In step (c) above
The collected seedlings,
The number of leaves is 3 to 5 or more and the diameter of the crown is 1 cm or more.
Strawberry seedling method using low-temperature dark treatment.
Strawberries cultivated by the method of raising strawberry seedlings using the low-temperature dark treatment according to any one of claims 1 to 4.

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