JP5767506B2 - Plant display device and plant display method using the same - Google Patents

Description

  The present invention relates to a display device for displaying plants and a plant display method using the display device.

  Conventionally, a display device for displaying plants is known (see, for example, Patent Document 1). This plant display device displays plants such as vegetables and fruits harvested from fields and the like. Usually, plants to be displayed are displayed in a state where the roots are cut at the time of harvest and the roots are cut off and lost.

Utility Model Registration No. 3148717

  However, plants in a state where the roots are cut off cannot absorb moisture and release moisture due to transpiration, so that they tend to wither and quickly lose freshness. For this reason, the conventional display device has a problem that it is difficult to provide fresh vegetables.

  Moreover, the plants with the roots cut off will become more and more withered as the display time increases. That is, there is a problem that plants with cut roots are often damaged and thus often have to be discarded.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a plant display device and a plant display method capable of displaying fresh plants for a long time. There is.

The plant display device of the present invention is a display device for displaying plants, wherein the plant display tank unit 3 accommodates liquid fertilizer 7 for hydroponically cultivating the plant, and the tank unit 3 A growth suppressing means 8 for delaying the growth of the cultivated plant, and the growth suppressing means 8 has a light-emitting unit 5 that irradiates the plant with light having an illuminance below a certain level to suppress the growth of the plant. It is characterized by being.

As described above, the display device of the present invention can display a living plant by displaying the plant while hydroponically cultivating it, and can provide a fresh plant to consumers and the like. And since the display apparatus of this invention is equipped with the growth suppression means 8, it can display for a long time with a state with high freshness, and can delay that a plant is damaged.
In addition, since the growth is suppressed by the light emitted from the light emitting unit 5, plants closer to nature can be displayed as compared with, for example, a liquid fertilizer 7 containing a growth inhibitor.

  Moreover, in this plant display device, it is preferable that the tank portion 3 for plant display is for hydroponically cultivating a plant for food.

  As described above, the display device of the present invention can display a plant to be eaten, that is, to display a plant to be eaten for a long time while maintaining a state suitable for eating. be able to.

  As described above, the display device of the present invention suppresses growth by the light emitted from the light emitting unit 5, and therefore displays plants closer to nature than, for example, a liquid fertilizer 7 containing a growth inhibitor. can do.

  Moreover, in this plant display device, it is preferable that the growth suppressing means 8 has an illuminance variable means 51 for changing the illuminance of the irradiation light to the plant.

  Thus, since the display apparatus of this invention can change the illumination intensity of the irradiation light of a plant, it can adjust the degree of plant growth suppression.

  The plant display method of the present invention is a plant display method using the display device described above, wherein a plant that has been cultivated in advance is cultivated in the tank portion 3 for plant display, and the growth suppressing means 8 The plant is displayed while the growth of the plant cultivated in the tank part 3 for displaying the plant is delayed.

  According to the plant display method of the present invention, the plant can be displayed in a cultivated state, and the growth rate of the plant can be suppressed, so that the plant can be kept alive and for a long time. It can be displayed in a fresh state.

  According to the plant display device and the plant display method using the plant display device of the present invention, it is possible to display fresh plants for a long time in a fresh state.

1 is a perspective view of a display device according to Embodiment 1. FIG. FIG. 2 is a front view of the display device according to the first embodiment. 1 is a front cross-sectional view of a display device according to a first embodiment. FIG. 3 is a side sectional view of the display device according to the first embodiment. It is a display apparatus of Embodiment 2, (a) is a front view, (b) is a side view.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  The display apparatus of Embodiment 1 is an apparatus shown in FIG. 1, and is configured by a display shelf for displaying plants. The display device is installed in, for example, shops such as greengrocers and fruit shops, restaurants, department stores, supermarkets, and kitchens of hotels and inns. On the display device, plants used for food such as vegetables and fruits (hereinafter referred to as edible plants) and plants such as fresh flowers are displayed with roots.

  As shown in FIG. 2, the display device is mounted on the device main body 1, the interior of which is partitioned by a plurality of shelf plates 11, 12, 13, and the shelf plates 11, 12, and contains the liquid fertilizer 7 therein. A tank unit 3 and a liquid circulation device 4 for circulating the liquid fertilizer 7 in the tank unit 3 are provided. The display device further includes a light emitting unit 5 that irradiates the plants cultivated in the tank unit 3 and an air conditioner 6 that performs temperature management in the apparatus main body 1.

  As shown in FIG. 2, the apparatus main body 1 includes four columns 10 disposed at each corner, an outer body 23 that covers the outside of the column 10 and forms an outer shell, a top plate portion 19, The main body is constituted by a frame body 20 made of The apparatus main body 1 includes a first shelf 11 that is horizontally disposed, a second shelf 12 that is provided below and horizontally disposed on the first shelf 11, and the second shelf 12. 3 and a third shelf plate 13 disposed horizontally, and these shelf plates 11, 12, 13 are fixed to the frame body 20 via bolts. The apparatus main body 1 includes a first accommodating portion 14 provided above the first shelf board 11, and a second housing provided above the second shelf board 12 and below the first shelf board 11. The housing portion 15 and a third housing portion 16 provided above the third shelf board 13 and below the second shelf board 12 are provided.

  The apparatus main body 1 has a rear plate 4 disposed on the rear surface and a transparent transmission plate 17 disposed on the front surface (see FIG. 4). As shown in FIG. 1, the transmission plate 17 closes the first accommodation portion 14 and the second accommodation portion 15 so as to be freely opened and closed, and can be opened and closed independently for each of the accommodation portions 14 and 15. It is configured to be able to. The third accommodating portion 16 is closed by an opaque shielding plate 29 so that the inside cannot be seen.

  As shown in FIG. 3, the apparatus main body 1 includes a ventilation path 21 that allows the air outlet 62 of the air conditioner 6 to communicate with the spaces in the first storage unit 14 and the second storage unit 15. This ventilation path 21 is provided along the frame 20, and specifically, the upper duct part 22 comprised by the top plate part 19 of the flat hollow box shape, and a pair located in one side. The side duct portion 18 is disposed between the support columns 10 and is formed in a flat hollow box shape, and the inside thereof is communicated with the upper duct portion 22.

  The upper duct portion 22 includes a first top plate 191, a second top plate 192 separately provided below the first top plate 191, and the first top plate 191 and the second top plate 192. And a third top plate 193 that surrounds the four sides between the first top plate 191, that is, the first top plate 19 comprising the first top plate 191, the second top plate 192, and the third top plate 193. Has been. The first top plate 191 is provided with an air-conditioning installation unit 194 for installing the air-conditioning device 6 at the center of the upper surface thereof. The air-conditioning installation unit 194 is connected to the air outlet 62 of the air-conditioning device 6. An inlet 195 is drilled. In the second top plate 192, an upper connection port 196 penetrating in the vertical direction is formed at one end portion.

  The side duct portion 18 includes a first side plate 181, a second side plate 182 that is spaced apart from the first side plate 181, and a space between the first side plate 181 and the second side plate 182. It is comprised by the 3rd side plate 183 surrounding 4 rounds. A lower connection port 184 connected to the upper connection port 196 of the upper duct portion 22 is provided on the upper surface of the third side plate 183. The first side plate 181 includes a first air supply port 24 that opens toward the first storage portion 14 and a second air supply port 25 that opens toward the second storage portion 15. Yes. The air supply ports 24 and 25 are provided with a blower fan 26 that circulates air from the ventilation path 21 side toward the housing portions 14 and 15 side.

  The air blown out from the air conditioner 6 passes through the inflow port 195, flows through the upper duct portion 22 and the side duct portion 18, and reaches the first air supply port 24 and the second air supply port 25. The air flows from the first air supply port 24 into the first housing portion 14 and flows from the second air supply port 25 into the second housing portion 15. Thereafter, the air in the accommodating portions 14 and 15 rises along the inner surface of the outer body 23 on the side opposite to the side where the first air supply port 24 and the second air supply port 25 are provided, and the air conditioner 6 flows in.

  The apparatus main body 1 has a caster part 27 at the lower part. The apparatus main body 1 is placed on an installation surface such as a floor or the ground via the caster unit 27. The caster portion 27 of the present embodiment is configured by a caster with an adjuster foot that includes a rotating roller 271 that allows the frame body 20 to move and an adjuster portion 272 that can be fixed so that the frame body 20 cannot move. Yes.

  The tank part 3 is comprised so that it can display in the state which grew the plant, as FIG. 1 etc. show. As shown in FIG. 3, the tank unit 3 includes a container 31 that houses the liquid fertilizer 7 for hydroponics and a cultivation plate 32 that covers the opening of the container 31. The container 31 is formed long in the left-right direction, and has an overflow portion 33 for maintaining a constant water level at one end in the longitudinal direction. The overflow part 33 is formed in a cylindrical shape, and the end surface of the upper opening 34 is substantially at the same level as the liquid level in the container 31. In the overflow portion 33, a lower opening 35 communicating with the upper opening 34 is positioned below the bottom surface of the container 31, and the liquid fertilizer 7 that flows in from the upper opening 34 flows out from the lower opening 35. In addition, the container 31 of this embodiment is formed in the depth of about 30 mm-50 mm, for example.

  The cultivation board 32 is installed so as to close the upper opening of the container 31. The cultivation board 32 of this embodiment is comprised with plastic materials, such as a polystyrene foam. The cultivation plate 32 is provided with a plurality of cultivation holes 36 penetrating up and down, which are parts for cultivating plants. The cultivation holes 36 of the present embodiment are drilled at a predetermined pitch in the left-right direction.

  The liquid circulation device 4 includes a solution tank 41 in which the liquid fertilizer 7 is accommodated, and has a function of circulating the liquid fertilizer 7 between the solution tank 41 and the tank unit 3. As shown in FIG. 3, the liquid circulation device 4 includes a solution tank 41, a supply path 42 that connects the solution tank 41 and each tank unit 3 in communication, and a solution so that the liquid fertilizer 7 flows in the supply path 42. And a circulation pump 43 that delivers the liquid fertilizer 7 from a tank 41. Furthermore, the liquid circulation device 4 includes a liquid return path 44 that connects the lower opening 35 of the overflow portion 33 of the tank portion 3 and the inside of the solution tank 41. The supply path 42 is disposed at an end portion on the opposite side to the overflow portion 33 in the longitudinal direction of the container 31. The supply path 42 is installed such that an end thereof is separated from the liquid surface of the liquid fertilizer 7.

  The solution tank 41 is disposed on the third shelf plate 13 of the third housing portion 16 of the apparatus main body 1. The solution tank 41 accommodates circulating liquid fertilizer 7 (culture solution). The solution tank 41 is provided with a management device (not shown) for managing the EC (Electrical Conductivity) value of the liquid fertilizer 7 accommodated therein. By managing the EC value, the salt concentration contained in the liquid fertilizer 7 can be grasped. The management device may not be provided, and for example, the user may manage the EC value as appropriate.

  In addition, about the solution tank 41, in order to prevent generation | occurrence | production of a chief, it is more preferable to manage EC value in detail. For example, the EC value of the solution tank 41 of the present embodiment is usually preferably set to about 2.0 to 2.5 ms / cm. Moreover, when it is overnutrition, it sets to about 0.3-0.7 ms / cm, for example. In addition, the density | concentration of the liquid fertilizer 7 is not limited to this range.

  The liquid fertilizer 7 in the solution tank 41 flows through the supply path 42 by the circulation pump 43 and is sent to the tank unit 3 in the first storage unit 14 and the tank unit 3 in the second storage unit 15, respectively. When the liquid fertilizer 7 is sent to each tank unit 3, the liquid level of each tank unit 3 rises and flows out from the overflow unit 33. The liquid fertilizer 7 that has flowed out from the overflow portion 33 returns to the solution tank 41 from the lower opening 35 through the liquid return path 44.

  The display device of the present embodiment includes a growth suppressing means 8 for delaying the growth rate of the hydroponically grown plant in the tank unit 3. The growth suppressing means 8 of the present embodiment suppresses the growth rate of an edible plant that has been grown in advance until the maturity period or immediately before, for example, thereby maintaining a state suitable for eating for a long time. In addition, the plant growth suppression said here means making the speed | rate of growth slower than the plant cultivated under sunlight.

  The growth suppressing means 8 of this embodiment includes a light emitting unit 5 and a dimmer 52 as shown in FIG. The growth suppressing means 8 of this embodiment further includes an air conditioner 6.

  The light emission part 5 has a function which suppresses the growth of the said plant by irradiating the light of the illumination below a certain level to the plant hydroponically cultivated in the tank part 3. FIG. The light emitting section 5 is provided above the first housing section 14 and the second housing section 15, and specifically, attached to the back side of the top plate section 19 and the back side of the first shelf board 11. It has been. The light emitting unit 5 of the present embodiment is disposed along substantially the entire length in the longitudinal direction of the housing units 14 and 15. The light emitting unit 5 of the present embodiment is composed of a tube-shaped light emitter, specifically, an Hf fluorescent lamp. As shown in FIG. 4, the light emitting units 5 are arranged side by side in two rows in a direction perpendicular to the longitudinal direction. Note that one row may be used as long as sufficient illuminance can be secured. Moreover, it may be arranged in parallel so that it may become three or more rows.

  A reflector 53 that reflects light emitted from the light emitting unit 5 downward is provided above the light emitting unit 5. The light emitting unit 5 is electrically connected to a dimmer 52 attached to the apparatus main body 1, and is configured so that the illuminance of light to be irradiated can be adjusted by the dimmer 52. In the present embodiment, the dimmer 52 constitutes the illuminance varying means 51.

  The illuminance unit 5 has its illuminance set according to the type of plant cultivated in the tank unit 3. Generally, an illuminance of 80% of the light saturation point of the plant is an appropriate illuminance for promoting the growth of the plant, but the light emitting unit 5 of the present embodiment has an illuminance smaller than the appropriate illuminance. Is set. This illuminance is set to an illuminance at least equal to or higher than the light compensation point. Specifically, the light emitting unit 5 is preferably maintained at an illuminance of 2000 Lx to 5000 Lx with respect to lettuce (light saturation point: 25000 Lx light compensation point: 1500 to 2000 Lx), for example.

  In addition, although the light emission part 5 of this embodiment is comprised by the fluorescent lamp, it may be comprised, for example by LED, and is not specifically limited. When the LED having directivity is used, a light diffusing member may be provided in the middle of the optical path to diffuse the light, and light irradiation may be performed over a wide range.

  The dimmer 52 is electrically connected to the light emitting unit 5 and can adjust the illuminance of the light emitted from the light emitting unit 5. As shown in FIG. 2, the dimmer 52 is attached to the front surface of the outer body 23 of the apparatus main body 1. Note that reference numeral 9 in FIG. 2 denotes a timer for setting the light emission time of the light emitting unit 5.

  The air conditioner 6 is an apparatus that adjusts and manages the temperatures of the first storage unit 14 and the second storage unit 15 in which plants are grown. The air conditioner 6 has its outlet 62 communicated with each of the accommodating portions 14 and 15 via the ventilation path 21. For example, by discharging cool air into the ventilation path 21, the inside of each of the accommodating portions 14 and 15 is discharged. Cooling. The air conditioner 6 of the present embodiment is configured to freely change the temperature of the air blown from the outlet 62 by operating an operation unit 61 provided on the front surface of the air conditioner 6.

  The air conditioner 6 of this embodiment can suppress the growth speed of the plant by keeping the temperature in each of the accommodating units 14 and 15 displaying the plant in a low temperature state. The air conditioner 6 can exhibit a growth suppressing effect by keeping the temperature of each of the accommodating portions 14 and 15 at, for example, 5 ° C. or more and 23 ° C. or less, and preferably 5 ° C. or more and 10 ° C. or less. In addition, the growth suppression said here means making the speed | rate of growth slower than the plant cultivated at normal temperature.

  The display device having such a configuration is used as follows.

  An edible plant is cultivated in a nurturing factory or the like in advance until it matures or just before it. Next, the edible plant grown in advance is cultivated in the tank portion 3 for plant display of the display device of this embodiment. In this state, light is emitted from the light emitting unit 5 as the growth suppressing means 8, and the cultivated edible plant is irradiated with light having a certain illuminance. In this state, edible plants are displayed and displayed for sale. At this time, it is more preferable that the operation unit 61 of the air conditioner 6 is operated to keep the temperature of the first storage unit 14 and the second storage unit 15 at 5 ° C. or more and 10 ° C. or less.

  Since the display device having such a configuration has the tank section 3 for plant display that accommodates the liquid fertilizer 7, the plant can be displayed while being hydroponically cultivated. Thereby, it is possible to display living plants and provide fresh plants to consumers and the like. And since the display apparatus of this embodiment is provided with the growth suppression means 8, it can display for a long time in a good state, and can delay that a plant is damaged. In other words, it can be displayed for a long time in a good state, the period of display for consumers and the like can be lengthened, and the harvest rate can be increased. As a result, the number of plants that must be damaged and discarded must be greatly reduced.

  In addition, since the display device of the present embodiment can display plants to be eaten, if it is displayed in a state immediately before the maturity period, it is displayed while maintaining a state suitable for eating for a long time. be able to. Thereby, for example, lettuce and strawberries in a state suitable for eating can be provided to consumers and the like at the same time as harvesting, that is, fresh vegetables and the like can be provided to consumers and the like.

  Moreover, since the display apparatus of this embodiment performs growth suppression using the light irradiated from the light emission part 5, compared with what adds a growth inhibitor etc. to the liquid fertilizer 7, for example, and suppresses growth. Safe plants close to nature can be displayed and provided to consumers.

  Moreover, since the display apparatus of this embodiment can change the illumination intensity of the irradiation light of a plant, it can adjust the degree of plant growth suppression. The illuminance can also be changed according to the type of plant.

  And since the display apparatus of this embodiment displays a plant in the state grown by hydroponics, there also exists an advantage that it is suitable also for the display of the plant grown year round.

  Next, Embodiment 2 will be described with reference to FIG. Since the present embodiment is common to the first embodiment in most part, the description of the same portion is omitted, and different portions are mainly described.

  Similar to the display device of the first embodiment, the display device of the second embodiment is a device for displaying plants.

  The display device according to the present embodiment includes a display stand 100 on which the tank 3 for plant display is disposed, and a display room 101 that accommodates the display stand 100 therein. The display device further includes a growth suppression means 8 for delaying the growth of the plant cultivated in the tank unit 3.

  The display room 101 is provided with an entrance 103 through which a consumer or the like can enter and exit on a front side wall 102, and a door 104 that can be opened and closed is provided at the entrance 103. In the display room 101 of the present embodiment, the front side wall 102 and the door 104 are made of a transparent member. The display room 101 has a storage space 105 for the display stand 100 inside, and is configured to have a size allowing consumers and the like to enter and exit.

  In addition, this display room 101 may be comprised by the housing of a building, and may be the unit room unitized. Moreover, although the display room of this embodiment accommodates one display stand 100, it may accommodate a plurality of display stands 100.

  The display stand 100 is configured by installing a plurality of shelf boards 107 on a plurality of support columns 106. The display stand 100 includes the liquid circulation device 4 similar to the display device of the first embodiment. In the display stand 100, the light emitting unit 5 similar to the display device of the first embodiment is provided on the lower surface of the shelf board 107.

  The light emission part 5 has a function which suppresses the growth of the said plant by irradiating the light of illumination below a fixed level to the plant cultivated hydroponically to the tank part 3, like the display apparatus of Embodiment 1. . Although the light emission part 5 of this embodiment is comprised by the fluorescent lamp, you may be comprised by LED. Further, as in the first embodiment, a light adjuster 52 as the illuminance varying means 51 is attached to the light emitting unit 5.

  The tank part 3 is for hydroponically cultivating a plant. As the tank unit 3, the tank unit 3 having the same configuration as that of the display device according to the first embodiment is used.

  The display device of this embodiment includes an air conditioner 108. The air conditioner 108 is attached to the display room 101 and is separate from the display stand 100. The air conditioner 108 cools the interior space 105 of the display room 101. The air conditioner 108 of the present embodiment can suppress the growth rate of plants by keeping the temperature in the accommodation space 105 at a low temperature. The air conditioner 108 can exhibit a growth suppressing effect by keeping the temperature in the accommodation space 105 at, for example, 5 ° C. or more and 23 ° C. or less, preferably 5 ° C. or more and 10 ° C. or less.

  The growth suppression means 8 of this embodiment is comprised by the light emission part 5, the light controller 52, and the air conditioner 108, and can suppress the growth of a plant by these.

  The display device according to the present embodiment, like the first embodiment, can display living plants by displaying the plants while hydroponically cultivating them, and can provide fresh plants to consumers and the like. it can. And since the display apparatus of this embodiment is provided with the growth suppression means 8, it can display for a long time in a good state, and can delay that a plant is damaged. In other words, the plant can be displayed in the cultivated state and the growth rate of the plant can be suppressed, so that the plant can be displayed in a fresh state for a long time. it can.

  In the display devices of the first and second embodiments, the illuminance varying unit 51 is configured by the dimmer 52. However, the illuminance varying unit of the present invention is, for example, a position changing unit that moves the position of the light emitting unit in the vertical direction. It may be configured. The position changing unit adjusts the distance between the light emitting unit and the cultivated plant by adjusting the position by moving the light emitting unit in the vertical direction, thereby adjusting the illuminance.

  The display apparatus of Embodiment 1, 2 should just be a plant which can be hydroponically cultivated as a plant displayed. This plant is mainly vegetables, and leaf vegetables such as lettuce, green onions, and salad vegetables are particularly preferable. Plants with fruits such as strawberries and tomatoes are also applicable.

  In addition, although the growth suppression means 8 of Embodiment 1, 2 was provided with the light emission part 5, the light controller 52, and the air conditioners 6 and 108, it is comprised only by the light emission part 5 which emits light below fixed illumination intensity. May be. Further, the growth suppressing means 8 may be configured by only the air conditioners 6 and 108 without including the light emitting unit 5. That is, the growth suppressing means 8 of the present invention is not limited to the aspects of the first and second embodiments.

  In addition, the display device of the present embodiment employs hydroponics by the so-called drip type hydroponic method (DFT; Deep Flow Technique). However, in the display device of the present invention, the hydroponics method is particularly limited. Not. As a hydroponics method, for example, a so-called thin film hydroponic method (NFT), rock wool, gravel, sand, rice bran, pumice, etc. are immersed in the culture solution in addition to the liquid hydroponics method. Hydroponics may be used.

  Hereinafter, examples in which growth suppression is performed using the display devices of the first and second embodiments will be described.

(Example)
In this example, cosmetus was used as a plant, and Otsuka House Fertilizer No. 1 and No. 2 (manufactured by Otsuka Chemical Co., Ltd.) were prepared as liquid fertilizer at a ratio of about 3: 2. At this time, the EC value of liquid fertilizer was set at 2.6 ms / cm and PH was set at 6.6-7. The temperature of the housing part containing the cosmetus was set to about 15 ° C.

  The illuminance of light emitted from the light emitting part was set to 5000 Lx, and display was performed for 15 days while irradiating Kosletus hydroponically cultivated on the liquid fertilizer. On the other hand, as a comparative example, cosmetus hydroponically cultivated in the above liquid fertilizer was irradiated with light having an illuminance of 10,000 Lx and displayed for 15 days. Note that the initial weight of the cosmetics to be displayed is 160 g.

  As a result, the following values were obtained.

  Cosletus displayed while irradiating 5000 Lx of light grew from 160 g to 200 g in 15 days. On the other hand, cosmetics displayed while irradiating 10,000 Lx light grew from 160 g to 310 g in 15 days.

  As is apparent from the results, the cosmetics displayed by irradiating 10,000 Lx light grew 150 g in 15 days, whereas the cosmetics displayed by irradiating 5000 Lx light only grew 40 g in 15 days. . That is, it can be seen that plant growth can be suppressed by reducing the illuminance of the light applied to the plant.

DESCRIPTION OF SYMBOLS 1 Apparatus main body 20 Frame 21 Ventilation path 26 Blower fan 27 Caster part 3 Tank part 31 Container 32 Cultivation board 4 Liquid circulation apparatus 41 Solution tank 42 Supply path 43 Circulation pump 44 Liquid return path 5 Light emission part 51 Illuminance variable means 52 Light control 6 Air conditioner 7 Liquid fertilizer 8 Growth control means

Claims (4)

A display device for displaying plants,
A tank portion for plant display that contains liquid fertilizer for hydroponically cultivating the plant;
A growth inhibiting means for delaying the growth of the plant cultivated in the tank part ,
The plant display device , wherein the growth suppressing means includes a light emitting unit that irradiates the plant with light having an illuminance of a certain level or less to suppress the growth of the plant. 2. The plant display device according to claim 1, wherein the plant display tank section hydroponically cultivates a plant to be eaten. The said growth suppression means has the illumination intensity variable means to change the illumination intensity of the irradiation light to the said plant.
3. The plant display device according to claim 1 , wherein the plant display device is a plant display device.   A plant display method using the display device according to any one of claims 1 to 3,
Cultivate a plant that has been cultivated in advance in the tank section for plant display,
The said growth suppression means displays the said plant, delaying the growth of the plant cultivated in the said tank part for plant display.
A plant display method characterized by the above.

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