JPH0779647A - Treating apparatus for germination and grafting of plant and controlling method therefor - Google Patents

Abstract

PURPOSE:To provide a plant treating apparatus capable of applying uniform and proper illumination in the germination of plant seed or grafting work necessitating the radiation of light while keeping the environment in optimum temperature and humidity conditions and to provide a controlling method for the plant treating apparatus to promote the germination of a plant seed compared with conventional germination method and enable uniform germination of seeds and optimum grafting of saplings. CONSTITUTION:This treating apparatus is provided with a means for placing grafting saplings or a medium holding seeds on a multi-stage shelf 5 using a tray 10 and controlling the temperature and humidity in the ambient environment of the multi-stage shelf. The controlling means at least has a refrigerator 2, a humidifier 6, a humidification controlling device and a controlling circuit. A reflection plate 5a is attached to each stage of the multi-stage shelf 5 and plural illumination tools 4 are vertically arranged on the side face of the multi-stage shelf 5. In the case of keeping the ambient environment of the multi-stage shelf 5 to highly humid state, the humidifier 6 is intermittently or continuously operated using a timer by the output signal of the temperature controller during the ON period of the refrigerator 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant germination and graft grafting treatment apparatus and control method therefor, and more particularly to a plant treatment apparatus suitable for plant seed germination and graft graft seedling grafting and control method therefor. is there.

[0002]

2. Description of the Related Art Conventionally, as a germination apparatus for plant seeds, for example, a plant germination and growth apparatus described in Japanese Utility Model Publication No. 57-74257 has a thermostat as a method for suppressing temperature rise due to exhalation and illumination during germination and growth. There is disclosed a technique for detecting the temperature by using the and controlling the ON / OFF of the cooler.

Further, Japanese Utility Model Laid-Open No. 57-102917 discloses a germination and growth apparatus as described above, to which humidity, water, nutrients and water sprinkling means are added. further,
For example, Japanese Unexamined Patent Publication No. 2-128627 discloses that when a germination heating time elapses, an alarm is activated and an air conditioner is activated to maintain a temperature at which buds do not grow after germination.

[0004]

As a method for mass-producing plant seedlings, industrially producing coated seeds coated with seeds using a medium in a standardized tray has been carried out. In such cultivation, seed germination is an important step because it directly relates to yield. Further, the technique of connecting seedlings to each other is a method of further increasing the added value of the seedlings, and whether or not the grafted seedlings survive is similarly related to the yield. The present invention relates to the germination of plant seeds and the survival of grafted seedlings.

Originally, as a method of germinating plant seeds, there are a method of covering the seeds with a medium and a method of placing the seeds on the surface of the medium like fine seeds or seeds requiring light. Particularly, in the case of seeds that are placed on the surface of the medium and need light, it is necessary to irradiate the light and prevent the surface of the seed and the surface of the medium from drying. In plant seed germination equipment, conventional germination equipment targets seeds that do not require light, and there are problems such as not being able to cope with the germination of plant seeds that require light irradiation. Germination processing is performed using a greenhouse. Therefore, there was a problem that the time required for the germination treatment and the germination rate depend on the weather.

FIG. 6 is a schematic view showing the construction of a conventional grafted seedling storage rack. In the case of the grafted seedlings shown in FIG. 6, when the lighting fixture 4 is directly attached to the shelf of each shelf on which the grafted seedling 21 on the medium is placed using the tray 10, the shelf surface shown in the retention part 22 is heated. There was a problem of being muffled. In addition, when the lighting fixture 4 is attached to the shelf surface, there is a problem that the shelf interval cannot be made small, and when the shelf is moved at the time of carrying in and carrying out seedlings, it takes time and effort to turn on and off the power cord and plug. There was a problem.

The present invention has been made in order to solve the above-mentioned problems of the prior art. For germination and grafting of plant seeds that require light irradiation, while maintaining the environment at an appropriate temperature and humidity, A first object of the present invention is to provide a plant germination and graft grafting treatment device capable of uniformly providing appropriate illuminance.

Further, in the grafting treatment of plant seedlings, especially when the grafted seedlings are inserted into the medium in a state where the rootstock is not rooted, the humidity of the initial ambient air and the light intensity determine whether or not the grafted seedlings survived thereafter. Influences. Therefore, an important issue is how to create a state in which grafted seedlings do not shrink, especially at the initial stage.

On the other hand, plant seeds (dark germinated seeds that do not require light irradiation) that germinate in a normal germination apparatus also differ in the start of germination and the period until completion of germination differs. During this period, the seeds that have already started to germinate are overwhelming because the inside of the device is dark, high temperature, and high humidity. The method of lowering the temperature in order to suppress overgrowth described in the prior art is to perform low temperature treatment at the end of germination, but it is said that seeds with a long germination period are already overgrown at the end of germination. There was a problem.

A second object of the present invention is to solve the above problems, to promote the germination of plant seeds, to achieve uniform germination, and to achieve optimal grafting of grafted plants. An object of the present invention is to provide a method for controlling a survival treatment device.

Further, in general, the illuminance required for germination and
Since it does not match the illuminance required for grafting and raising seedlings, there is a problem in that the illuminance becomes excessive or insufficient when the germination device is also used as a grafting / seedling device or when shelves with different shelf intervals are used. A third object of the present invention is to solve the above problems and obtain an appropriate illuminance corresponding to each application such as germination, seedling raising, graft grafting and when using different sizes of shelves. , To provide a plant germination and graft grafting treatment device.

[0012]

In order to achieve the above-mentioned first object, the constitution of the first invention relating to the plant germination and graft grafting treatment apparatus of the present invention is the plant seed on the medium or the medium on the medium. Grafting seedlings are placed on a multi-tiered shelf using a tray, and environmental temperature around this multi-tiered shelf is provided with a means for controlling the humidity, in a plant cultivating apparatus for germination of plant seeds or rooting of grafted seedlings, A reflecting plate is provided on each stage of the multi-tiered shelf, and a plurality of lighting fixtures are vertically arranged on the side surface of the multi-tiered shelf.

In order to achieve the above-mentioned second object, the structure of the second invention relating to the control method of the plant germination and graft grafting treatment apparatus of the present invention is the plant seed on the medium or the grafted seedling on the medium. It is placed on a multi-tiered shelf using a tray and is equipped with at least a refrigerating device, a humidifier, a humidification controller and a control circuit for controlling the environmental temperature and humidity around the multi-tiered shelf, and germination of plant seeds or grafted seedlings. In the method for controlling a plant cultivation device for carrying out rooting, when the environmental humidity around the multi-tiered shelf is maintained at a high humidity of 90% or more, the output signal of the temperature controller in the device causes the freezing device to turn on, and the timer. Is used to operate the humidifier intermittently or continuously.

The structure of the third invention relating to the control method of the plant germination treatment apparatus of the present invention is the same as the control method described above, except that a high humidity environment of 95% or more is used and the plant seeds are irradiated by intermittent irradiation. It was controlled to promote germination.
Furthermore, the configuration of the fourth invention relating to the method for controlling a graft graft survival treatment device of the present invention is the above control method, wherein a high humidity environment of 95% or more is provided in the initial stage, and a dark or low illuminance or intermittent illumination is provided. The integrated illuminance per unit time is set to a low level to prevent the grafted seedlings from wilting, and the humidity is set to 90%.
% Or less and increase the integrated illuminance per unit time,
It is controlled so as to promote the survival of grafted seedlings.

Further, in the fifth aspect of the present invention relating to the plant germination treatment apparatus, the plant seeds on the medium are placed on a multi-tiered shelf using a tray, and the environmental temperature around the multi-tiered shelf, In a plant cultivating apparatus for germination of plant seeds, comprising a means for controlling humidity, the environment around the multistage shelf can be controlled to an oxygen enriched state of oxygen concentration of 22 to 28%, at least an oxygen cylinder and oxygen concentration adjustment And means.

Further, the structure of the sixth invention relating to the control method of the plant germination treatment apparatus of the present invention is the above control method, wherein the environmental temperature around the multi-tier shelf is set to a predetermined temperature after a certain period from the start of the germination treatment. The seedlings were controlled so that the seedlings could be prevented from growing too much and the germination could be made uniform by irradiating light.

In order to achieve the above-mentioned third object, the configuration of the seventh invention relating to the plant germination and graft grafting treatment device of the present invention is such that, in the above-mentioned control device, the lighting equipment in the device is movable. It was done.

[0018]

The function of each technical means described above is as follows. According to the plant germination and graft grafting treatment device of the above-mentioned first invention, since the lighting equipment is installed on the side surface of the multi-tiered shelf, excess heat due to convection and heat transfer of the illumination part stays on the shelf part. In addition, the required illuminance can be obtained uniformly, the temperature unevenness between the multi-tiered shelves is reduced, and it is not necessary to set the temperature inside the apparatus lower than the appropriate temperature, resulting in energy saving. It also has excellent workability.

According to the method for controlling the plant germination and graft grafting treatment device of the second invention, the capacity can be easily controlled and a high humidity environment can be easily obtained.

According to the control method of the plant treatment apparatus of the third and fourth inventions, the plant seeds are not dried and the grafted seedlings are not wilted, and the germination of the plant seeds and the survival of the grafted seedlings are achieved. Can be promoted.

According to the plant germination treatment apparatus of the fifth invention, a growth promoting effect can be expected even in the seedling raising period after germination. Further, according to the control method of the plant germination treatment apparatus of the sixth aspect of the present invention, the plant seeds that have started to germinate do not grow too long, and can promote greening and appropriately suppress the growth of seedlings. Moreover, the germination can be made uniform.

According to the plant germination and graft grafting treatment device of the seventh aspect of the present invention, the lighting equipment is movable, so that it can be used for germination, seedling raising, grafting equipment and the like.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, each embodiment of the present invention will be described with reference to FIGS.
Will be described with reference to. Example 1 First, an example of a plant germination and graft grafting treatment device (plant treatment device) of the first invention will be described with reference to FIGS. 1 to 7. FIG. 1 is a schematic front view showing the configuration of a plant treatment apparatus according to an embodiment of the present invention, and FIG.
1 is a schematic side view of the apparatus of FIG. 1, FIG. 3 is a schematic plan view of the apparatus of FIG. 1, FIG. 4 is a schematic cross-sectional view of a germination tray, and FIG. 5 is a schematic cross-sectional view of a graft graft seedling tray. FIG. 6 is a configuration diagram of a conventional grafted seedling storage shelf, and FIG. 7 is an explanatory diagram showing effects of side irradiation and a reflector of the device of FIG.

In FIG. 1, reference numeral 1 is a wall body having excellent heat insulating properties which constitutes a plant treatment apparatus, and 2 is a refrigerating apparatus or an air conditioner (hereinafter referred to as a refrigerator), which is installed on a floor or a ceiling surface. To be 3 is an electric heater, 4 is a lighting fixture, 5 is a movable multi-tiered shelf, 5a is a reflector provided on the upper surface of each shelf 5b, 6 is a humidifier, and 7 is a temperature for sensing an environmental condition in the apparatus. A sensor, 8 is a humidity sensor that senses an environmental condition in the apparatus, and 9 is a punching plate for making the blowout air flow uniform. The punching plate 9 is provided on a ceiling or a side wall (a side wall in the example of FIG. 1). ing.

Here, as shown in FIGS. 2 and 3, a plurality of the lighting fixtures 4 are installed vertically on the multi-tiered shelves 5 on the wall or on the movable support unit 13A, and the lighting fixtures 4 are illuminated from both sides of the multi-tiered shelves 5. Irradiate. When the plant treatment apparatus is used as a germination apparatus, as shown in FIG.
The tray 10 containing and is placed on each shelf 5b. Also,
When the plant treatment device is used as the graft grafting device, as shown in FIG. 5, the tray 10 containing the medium 12 and the graft seedling 21 is placed on each shelf 5b.

The operation when the plant treatment device is used as a germination device will be described. For seeds that do not require light for germination, germination treatment is performed by controlling the temperature and humidity according to the seeds to be treated, as in the conventional case. For seeds that require light for germination, germination illuminance (average of 100 LUX or more) is applied from the side to perform germination treatment. Here, the reflector 5
By providing a on each shelf 5b and irradiating light from the side surface, the same amount of processing as the conventional germination processing that does not require light can be performed, and the conventional grafting device shown in FIG. As described above, since the temperature rise due to the exhaust heat of the lighting fixtures 4 provided on the upper portions of the shelves is less than that when the lighting fixtures 4 are installed on the respective shelves 5b, the temperature rise of the medium 12 in the tray 10 is Prevents drying around the seed 11 and the surface of the medium,
A proper germination rate can be obtained.

Generally, a fluorescent lamp is used as the lighting device.
The convection and conduction heat of the lamp part of the fluorescent lamp accounts for about 40% of the input energy (Lighting Society / Lighting Society-Lighting Class 6
0). This heat energy becomes extra heat that does not contribute to light and causes temperature unevenness. Further, the tray 10 for packing the medium 12 is black, and the tray 10 and the shelf portion 5b become a factor that absorbs and shields the illumination. The reflection plate 5a is preferably a white system, and is provided to improve the efficiency of light irradiation to the medium 12 and to irradiate the medium with uniform light.

FIG. 7 simply shows the effect of the reflector. When the tray end portion and the center portion are representative examples, the irradiation use range of the lamp is as shown in FIG. In FIG. 7, C is the center of the tray portion, E is the tray end, LE is the illumination use range at the tray end without the reflector, LE '.
Is the illumination utilization range at the tray end with the reflector, LC is the illumination utilization range at the center of the tray when there is no reflector, and LC 'is the illumination utilization range at the center of the tray with the reflector. Show. That is, the irradiation use ranges of the lamps at the tray end and the center are LE <LE 'and LC <LC', respectively, and the use efficiency of the illumination is good when the reflector is provided.

According to this embodiment, since the luminaire 4 is installed on the side surface of the multi-tiered shelf 5, the excess heat due to the convection and heat transfer of the luminaire 4 does not stay in the shelves, and each shelf does not accumulate. There is little temperature unevenness. Further, it is not necessary to set the internal temperature of the apparatus lower than the proper temperature, which leads to energy saving. Further, since the space between the shelves can be made small, the storage efficiency can be improved. On the other hand, since the amount of heat generated on the shelf 5b is small,
The wind speed can be reduced, and the seed 11 and the medium 12 can be prevented from drying.

The same effect can be obtained when the plant treatment device is used as a graft graft seedling adhering device.
In the case of the grafted seedlings 21, depending on the width of the shelves, it exhibits a light-reflecting property by irradiation from the side surface, but it can be solved immediately by switching the irradiation direction or by transferring to a general greenhouse. On the other hand, from the viewpoint of workability, since the shelving for germination / grafting does not come with lighting equipment or cords,
The tray 10 for germination or grafting can be carried in and out outside the device, and can be carried out in units of shelves, and cleaning is easy.

[Embodiment 2] An embodiment of a method for controlling a plant germination and graft grafting treatment device (plant treatment device) of the second invention will be described with reference to FIGS. 1 and 8. Figure 8
It is an operation pattern diagram explaining the control operation for obtaining high humidity by simple capacity control. Controlling the temperature and humidity with high precision is important to prevent wilting at the early stage of grafting, accelerate the germination start time of seed germination, and obtain uniform germination. In FIG. 1, the temperature and humidity are controlled by a refrigerator 2, an electric heater 3, a humidifier 6, a temperature sensor 7,
Depending on the detection result of the humidity sensor 8, it is necessary to turn it on and off, control the number of units, and control the capacity.

As shown in FIG. 8, in the normal mode, the humidifier 6 is turned on and off by controlling the humidity controller to be turned on and off.
OFF control. When the environmental humidity inside the device, that is, around the multi-level shelf 5 is set to a high humidity of 90% or more, the humidifier 6 is intermittently or continuously operated by using a timer while the refrigerator 2 is ON by the output signal of the humidity controller. To activate. That is, in order to prevent a decrease in humidity due to dehumidification when the refrigerator 2 is turned on and a delay in the detection time of the humidity sensor 8 due to an increase in temperature, the humidifier 6 is activated in conjunction with the turning on of the refrigerator 2. The humidifier 6 operates intermittently via a timer circuit. The intermittent time of the timer is arbitrarily set by the set temperature (suitable germination temperature) and the like. Further, by switching the control, the normal humidity sensor 8 can control.

According to the present embodiment, there is no excessive humidification or excessive load on the refrigerator due to the conventional control of only the timer, and the time delay in the sensor can be reduced without adding a complicated control circuit. It is possible to prevent the resulting decrease in humidity, and a high humidity environment can be easily obtained by simple capacity control of the refrigerator.

[Embodiment 3] An embodiment of a method for controlling a plant treatment apparatus according to the third and fourth inventions will be described with reference to FIG. FIG. 9 is an explanatory diagram of a control method for preventing wilting of the graft and preventing the culture medium from drying. In FIG. 9, the horizontal axis represents the processing step and the vertical axis represents the illuminance W (LUX · HR / DAY). 95 at the initial stage (9-A) of grafting seedling survival treatment and plant seed germination treatment
% High humidity and low illuminance or intermittent illumination to set the integrated illuminance L per unit time to a low level to prevent wilting of grafted seedlings and drying of the medium, and then humidity 90 at the next stage (9-B). % Or less and increase the integrated illuminance H per unit time. According to this example, it is possible to prevent the initial grafted seedlings from wilting, and the seeds do not dry,
It is possible to promote rooting of grafted seedlings and germination of plant seeds.

[Embodiment 4] An embodiment of a plant germination treatment apparatus according to the fifth invention will be described with reference to FIG. Figure 1
0 is a system diagram of an oxygen enrichment device according to another embodiment of the present invention. In FIG. 10, 15 is an oxygen cylinder, 16 is a pressure reducing valve, 17 is an oxygen on-off valve, 18 is an oxygen concentration controller, 19
Is an oxygen sensor, and 20 is a pressure damper. When supplying the oxygen of the oxygen sensor 15 into the device, the oxygen on-off valve 17 is opened and closed according to the detection signal of the oxygen sensor 19,
The inside of the device is controlled so as to have a desired oxygen concentration.

The effect of oxygen enrichment will be described below. Begonia coated seeds were used as an experimental material. As an environmental condition, as a result of an experiment of germination of seeds at a temperature of 20 ° C. and a humidity of 95% RH, an oxygen-enriched section (O ₂ concentration of 22 to 28%) was found to be
The germination start time could be shortened by about 10% with respect to the comparison plot (O ₂ concentration 20.8%). In addition, the oxygen enrichment effect (growth promotion effect: leaf area ratio 140%) was also observed in the seedlings that had been returned to atmospheric conditions thereafter.

[Embodiment 5] An embodiment of a method for controlling a plant germination treatment apparatus according to the sixth invention will be described. Generally, the germination start of seeds varies, and the germination start time and germination completion time vary depending on the seed. The present invention is also effective for dark germinated seeds (seed that does not require light for germination) in addition to light germinated seeds (seed that requires light for germination). After germination is started, the mixture is cooled to a predetermined temperature for a certain period of time and irradiated with light at the same time. By this method, seeds that have started to germinate can be promoted greening, the elongation of seedlings can be appropriately suppressed, and the germination can be made uniform without sprouting. However, seeds whose light is an obstacle to germination are excluded.

[Embodiment 6] An embodiment of a plant treatment apparatus according to the seventh invention will be described with reference to FIG. FIG. 11 shows
It is a figure which shows the attachment of the lighting fixture of the plant processing apparatus which concerns on another Example of this invention, and a moving means, (a) is a side view,
(B) is a front view. In FIG. 11, 13 is a rail portion that constitutes a wall or a lighting unit, and 14 is a mounting bracket that connects the rail portion 13 and the lighting fixture 4. Each lighting fixture 4 can arbitrarily set each lighting fixture interval as Δ → Δ ′.

In the plant treatment device, the illuminance given to the shelf surface differs depending on whether it is used as a germination device or a graft grafting device. Therefore, when it is desired to partially increase or decrease the illumination illuminance, such as when the germination device is also used as the graft grafting device or the seedling raising device, or when shelves with different shelf intervals are used, excess or deficiency of the illuminance occurs. According to the present embodiment, the illumination is divided into blocks and the interval between the illuminations is made variable, so that it is possible to freely deal with the increase or decrease of the illuminance.

[0040]

Industrial Applicability As described in detail above, according to the present invention, it is possible to uniformly germinate plant seeds that require light irradiation and grafting while maintaining the environment at an appropriate temperature and humidity. It is possible to provide a plant germination and graft grafting treatment device that can provide illuminance. In addition, it is possible to provide a method for controlling a plant germination and graft grafting treatment device, which promotes germination of plant seeds to achieve uniform germination and achieves optimum grafting seedling survival in the past. Furthermore, it is possible to provide a plant germination and graft grafting treatment device that provides an appropriate illuminance corresponding to each application such as germination, seedling, graft graft grafting equipment or using shelves of different sizes. .

[Brief description of drawings]

FIG. 1 is a schematic front view showing the configuration of a plant treatment apparatus according to an embodiment of the present invention.

2 is a schematic side view of the device of FIG. 1. FIG.

FIG. 3 is a schematic plan view of the device of FIG.

FIG. 4 is a schematic cross-sectional view of a germination tray.

FIG. 5 is a schematic sectional view of a grafted seedling tray.

FIG. 6 is a configuration diagram of a conventional grafted seedling storage rack.

7A and 7B are explanatory views showing the effects of side irradiation and a reflector of the apparatus of FIG.

FIG. 8 is an operation pattern diagram illustrating a control operation for obtaining high humidity by simple capacity control.

FIG. 9 is an explanatory diagram of a control method for preventing wilting of the graft and preventing the culture medium from drying.

FIG. 10 is a system diagram of an oxygen enrichment device according to another embodiment of the present invention.

FIG. 11 is a view showing a mounting and moving means of a lighting fixture of a plant treatment apparatus according to still another embodiment of the present invention.

[Explanation of symbols]

1 ... Wall body, 2 ... Refrigerator, 3 ... Electric heater, 4 ... Lighting fixture, 5 ... Multistage shelf, 5a ... Reflector plate, 5b ... Shelf part, 6 ... Humidifier, 7 ... Temperature sensor, 8 ... Humidity sensor, 9 ... punching plate, 10 ... tray, 11 ... seed, 12 ... medium, 13
... Rail part, 13A ... Movable support unit, 14 ... Mounting bracket, 15 ... Oxygen cylinder, 18 ... Oxygen concentration controller, 1
9 ... Oxygen sensor, 21 ... Grafting seedling.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeru Shinohara 470 Takebukuro, Inzai Town, Inba District, Chiba Prefecture 4

Claims (7)

[Claims] 1. A plant seed on a medium or a grafted seedling on a medium is placed on a multi-tiered shelf using a tray, and means for controlling the environmental temperature and humidity around the multi-tiered shelf is provided. In a processing device for germinating or rooting grafted seedlings, a reflecting plate is provided on each stage of the multi-level shelf, and a plurality of lighting fixtures are arranged vertically on the side surface of the multi-level shelf for germination of plants and Graft survival equipment. 2. A plant seed on a medium or a grafted seedling on a medium is placed on a multi-tiered shelf using a tray, and at least a refrigerating device, a humidifier, which controls the environmental temperature and humidity around the multi-tiered shelf, In a method for controlling a treatment device, comprising a humidification controller and a control circuit, for germinating plant seeds or cultivating grafted seedlings, when the environmental humidity around the multi-tier shelf is kept at a high humidity of 90% or more, A method for controlling a plant germination and graft graft treatment device, characterized in that a humidifier is operated intermittently or continuously by using a timer during an ON period of a refrigerating device in accordance with an output signal of a temperature controller. 3. The method for controlling a germination treatment apparatus for plants according to claim 2, wherein the humidity is controlled to a high humidity environment of 95% or more and the irradiation is intermittently controlled so as to accelerate the germination of the plant seeds. 4. A high humidity environment of 95% or more is set in the initial stage, and the integrated illuminance per unit time is set low by darkness or low illuminance or intermittent illumination to prevent wilting of the grafted seedlings, and then the humidity 90 3. The method for controlling a graft grafting treatment device according to claim 2, wherein the grafting rooting treatment apparatus is controlled to be less than or equal to%, and the integrated illuminance per unit time is increased so as to promote the graft grafting. 5. A treatment apparatus for germinating plant seeds, comprising means for controlling the environmental temperature and humidity around the multistage shelf by placing the plant seeds on a medium on the multistage shelf using a tray. A plant germination treatment apparatus comprising at least an oxygen cylinder and an oxygen concentration adjusting means capable of controlling the environment around the multi-tier shelf to be in an oxygen enriched state with an oxygen concentration of 22 to 28%. 6. The environment temperature around the multi-tiered shelf is cooled to a predetermined temperature after a lapse of a certain period from the start of germination treatment,
The method for controlling a germination treatment apparatus for plants according to claim 2, wherein light irradiation is performed so as to prevent overgrowth of the seedlings and uniformize germination. 7. The plant germination and graft grafting treatment device according to claim 1, wherein the lighting equipment in the device is movable.