JP6954537B2 - Herbaceous plant growth control methods, growth control systems, programs and storage media - Google Patents

Description

In the present invention, a herbaceous plant having a growth stage of each stage of seedling raising start, moss extraction, bud development, and flowering and a growth stage of the entire period from the start of seedling raising to flowering is a desired growing state on a desired day. It relates to a growth control method, a growth control system, a program and a storage medium of a herbaceous plant to be grown in.

In Patent Document 1, the construction of a growth system based on the integrated temperature value of the crop / the presence or absence of the inversion layer in the field is grasped, for example, the growth stage and the set temperature are determined using the integrated value, and the set temperature is determined. And, according to the command of the control unit that compares the current temperature of the field, the control of the fan and / or the hot air blower, or the control of the sprinkler can be selectively operated. Techniques for growth protection devices are disclosed.

In Patent Document 2, the growth curve generation unit converts the normal vegetation time series data into a vegetation growth curve of the vegetation index / integrated temperature, and the key time extraction unit extracts the key time with respect to the integrated temperature. The high-dimensional analysis model generation unit generates a high-dimensional analysis model representing a new plant growth situation based on this key time. Using this model, the disaster judgment department and the trend prediction department perform disaster judgment, growth trend prediction, etc., respectively, and disclose a vegetation growth analysis system that realizes agricultural management such as constant observation of plants and early yield prediction. ..

In Patent Document 3, the temperature transition is incorporated, and the function between the temperature and the physiological growth acceleration is integrated or integrated twice with the growth time to calculate the physiological growth position, or based on this and the past growth data. In addition, the required temperature transition can be obtained by predicting the growth time to reach a specific growth position from the future temperature transition prediction, or by giving the conditions of a specific growth position and a specific growth time, and growing the plant. Methods for prediction and growth management are disclosed.

In Non-Patent Document 1, cut flowers at the bud stage of lilies, small giku, and dianthus are harvested, and the treatment temperature obtained from the relational expression between the flowering rate and the treatment temperature is set according to the number of days until the specific day so as to bloom on a specific day. A technique for varying the growth rate of buds has been disclosed.

Japanese Unexamined Patent Publication No. 2016-168024 Japanese Unexamined Patent Publication No. 2015-188333 Japanese Unexamined Patent Publication No. 8-228603

"Specific day flowering technology by adjusting flowering after harvest" March 22, 2013 1st edition, published by Local Incorporated Administrative Agency Osaka Prefectural Institute for Environmental Agriculture, Forestry and Fisheries

The techniques of Patent Documents 1 to 3 are techniques related to growth and growth by avoiding freezing and frost damage of plants, agricultural management such as early yield prediction, and growth prediction. Decide the month and day by shifting each, and let the plants bloom in order for each greenhouse according to the day of each month and day decided for each week, and what is the flowering date of the plants in multiple greenhouses? There is a problem that it is not possible to grow a plant in a desired growing state within a few days before and after a desired day, such as deciding on what day of the month and making the plants bloom all at once around the decided day.

The technique of Non-Patent Document 1 is a technique of harvesting cut flowers with buds and growing the buds, but not a technique of growing plants. That is, although the growth process of a plant differs depending on the type of plant, for example, there are growth stages of each stage such as seedling raising start, moss extraction, bud development, and flowering, and the plant is desired within a few days before and after the desired day. There is a problem that it is not possible to grow the plant in the desired growth state of the growing stage.

The present invention was devised in view of these problems, and is a growth stage of a herbaceous plant, for example, each growth stage of seedling raising start, moss extraction, bud development, and flowering, and a growth stage over the entire period from the start of seedling raising to flowering. In the present invention, it is an object of the present invention to provide a growth control method, a growth control system, a program, and a storage medium of a herbaceous plant capable of reaching a desired growth state within a few days before and after a desired day.

The growth stage in the present invention is defined as a growth stage between change points where the herbaceous plant changes, for example, germination, moss extraction, bud development, flowering, etc. as the herbaceous plant grows, and the growth stage is defined as the herbaceous plant. It depends on the type of. In the case of the herbaceous plant Eustoma grandiflorum taken up in the present invention, as shown in FIG. The growth stage of stage II 8 corresponds to the growth stage of stage III 9 from bud 5 to flowering 6, and the growth stage of all stages 10 from seedling raising start 3 to flowering 6. Further, the growth stage change date in the present invention corresponds to the seedling raising start date, the moss extraction date when the stem begins to grow, the bud date when the buds begin to appear, and the flowering date which is the level at which the flowers are harvested, taking the eustoma as an example. , The date of change of the present invention is not limited to this.

Further, in the case of tomatoes, for example, as shown in FIG. 3B, the timing of sowing and the start of raising seedlings is almost the same, and the fruits can be harvested. The growth stage of stage I 7 corresponds to the growth stage of stage II 8 from bud 32 to flowering 33, and the growth stage of stage III 9 from flowering 33 to fruit harvest 34.

The effective lower limit temperature in the present invention means the upper limit of the temperature at which the growth of the herbaceous plant is stagnant at a constant temperature for each growth stage for each herbaceous plant, and the effective integrated temperature is for each growth stage for each herbaceous plant. It means the temperature obtained by subtracting the effective lower limit temperature from the temperature on the day when the effective lower limit temperature is exceeded in each growth stage at a constant temperature, and adding the temperature for all days of the growth stage. The effective lower limit temperature and the effective integrated temperature are obtained by growing a herbaceous plant from sowing to flowering in advance and measuring the change date, elapsed days, and temperature in the growth such as seedling raising start, moss extraction, bud development, and flowering.

The daily average temperature in the present invention means the average value of the temperature changing in one day, and the period average temperature means the average value of the daily average temperature of the selected period. As shown in FIG. 5, the daily average temperature varies from day to day within one period, but the period average temperature (not shown) is one within one period.

The growth index represents the growth state in the same growth stage numerically. For example, the growth index when the number of days elapsed in the I phase is n days is the effective integrated temperature in the same growth stage, and the growth is concerned. It means the value obtained by dividing the value obtained by subtracting the effective lower limit temperature from the average temperature during the period from the stage start date to n days and multiplying it by n days. The growth index is a numerical value represented by a minimum value of 0 at the start of the growth stage and a maximum value of 1 at the time of reaching the growth stage. For example, the current growth state can be expressed as a growth index of 0.8 at the stage I of the growth stage. The target growth level can be expressed as a growth index of 0.5 in the third stage of the growth stage.

但し、
Ｔｓ：所望する生育ステージにＹ日で達するための目標日平均気温
ａ：１を各生育ステージの有効積算温度で除算した値
ｂ：減算記号に各生育ステージの有効下限温度を有効積算温度で除算した値
Ｚ：各生育ステージの開始時を０とし各生育ステージ到達時を１として０超１以下の数字を生育レベルとして表した所望する生育指数（Ｚ−（ａ×Ｔｍ＋ｂ）×ｎ）は、０超〜１以下の内のいずれかの数値であること）
ｎ：各生育ステージにおける制御開始日の前日までの生育日数
Ｔｍ：各生育ステージにおけるｎ日までの期間平均気温。但し、ｎ＝０のときは０を代入する。
Ｙ：各生育ステージの生育期間の所望する日数 The herbaceous plant growth control method according to claim 1 is a herbaceous plant growth control method for controlling the growth of the herbaceous plant, and is based on the target daily average temperature represented by the following formula (1) for each growth stage. By controlling the temperature, it is characterized in that the desired growth state is controlled in a desired number of days.

However,
Ts: Target daily average temperature a: 1 to reach the desired growth stage in Y days divided by the effective integrated temperature of each growth stage b: Subtract the effective lower limit temperature of each growth stage divided by the effective integrated temperature Value Z: The desired growth index (Z- (a × Tm + b) × n) in which the start time of each growth stage is 0, the arrival of each growth stage is 1, and the number greater than 0 and 1 or less is expressed as the growth level is Must be any of the values above 0 to 1 or less)
n: Number of growth days up to the day before the control start date at each growth stage Tm: Average temperature during the period up to n days at each growth stage. However, when n = 0, 0 is substituted.
Y: Desired number of days of growth period for each growth stage

The method for controlling the growth of a herbaceous plant according to claim 2 is the method of controlling the growth of a herbaceous plant according to claim 1, wherein the effective integrated temperature and the lower limit of the effective temperature for each growth stage of the herbaceous plant, daily air temperature information, and between the growth stages including the seedling growth start date. Growth information storage step to acquire and store change date information, control start date information, desired growth index at each growth stage from the control start date to the growth stage corresponding to the desired growth state, and each growth stage. Based on the desired information acquisition step for acquiring the desired growth period, the information stored in the growth information storage step, and the information acquired in the desired information acquisition step, each of the above formulas (1) according to claim 1. It is characterized by including a calculation step for calculating the target daily average temperature of the growth stage and a temperature control step for controlling the temperature with the target daily average temperature for which the desired growth period is calculated in the order of the growth stage.

The method for controlling the growth of a herbaceous plant according to claim 3 is characterized in that, in claim 1 or 2, the herbaceous plant is a quantitative short-day plant, a quantitative long-day plant or a neutral plant.

The herbaceous plant growth control system according to claim 4 is a herbaceous plant growth control system that controls the growth of the herbaceous plant, and is effective integrated temperature, effective lower limit temperature, and daily temperature information for each growth stage of the herbaceous plant. In each growth stage, the storage means for acquiring and storing the change date information between the growth stages including the seedling growth start date, the control start date information, and the growth stage corresponding to the desired growth state from the control start date. The formula according to claim 1, based on an acquisition means for acquiring a desired growth index and a desired growth period for each growth stage, information stored in the storage means, and information acquired by the acquisition means. It is characterized by including a calculation means for calculating the target daily average temperature of each growth stage according to 1) and a temperature control means for controlling the temperature with the target daily average temperature for which the desired growth period is calculated in the order of the growth stages. do.

The herbaceous plant growth control program according to claim 5 is characterized in that a computer is made to execute the herbaceous plant growth control method according to claim 1 or 2.

The growth control program according to claim 6 includes a first growth information storage step of manually inputting and storing the effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant in a computer, and the air temperature from the start of seedling raising. A second growth information storage step that acquires and stores daily temperature information from the measuring means and change date information between growth stages including the seedling raising start date by manual input, control start date information, desired from the control start date. The desired information acquisition step of manually inputting the desired growth index in each growth stage and the desired growth period of each growth stage up to the growth stage corresponding to the growth state to be performed, and 1 is the effective integrated temperature of each growth stage. Calculate the value divided by, calculate the value obtained by dividing the effective lower limit temperature of the growth stage by the effective integrated temperature with the subtraction symbol, and control at each growth stage from each change date information including the seedling growth start date and control start date information. The number of growth days up to the day before the start date is calculated, the period average temperature up to the day before the control start date in each growth stage is calculated, and the target day average of each growth stage is calculated by the above formula (1) according to claim 1. A calculation step for calculating the air temperature and a temperature control step for controlling the temperature of the temperature adjusting means so that the desired growth period is the calculated target day average temperature in the order of the growth stages are executed.

The computer-readable storage medium according to claim 7 is characterized by storing the program according to claim 5 or 6.

The present invention sets the current growth level at each growth stage, which is the growth stage of a herbaceous plant, from the start of seedling raising to moss extraction, from moss extraction to buds, from buds to flowering, or from the start of seedling raising to flowering, for several days before and after a desired day. It has a remarkable effect that it can be grown to a desired growth level within. For example, a herbaceous plant whose current growth step is stage II from moss to bud and has a growth index of 0.5 is grown within a few days before and after the desired day, stage III from bud to flowering. It can be grown to 0.8 of the desired growth index of.

If the temperature is controlled at the target daily average temperature, which is different for each of the three growth stages, from the start of raising seedlings to the I stage of moss extraction, from the moss extraction to the second stage of bud development, and from the bud to flowering stage III, the growth stage is used. Since the control can be combined, the growth of the herbaceous plant can be brought to the desired growth state within a few days of the desired day. In addition, when the temperature is controlled at the same target daily average temperature from the start of raising seedlings to the entire stage of flowering, the growth of the herbaceous plant can be brought to a desired growth state within the vicinity of the desired day.

Here, within a few days in the present invention means within 2 to 3 days, and within the vicinity means within 5 to 6 days.

It is explanatory drawing of the growth control system of the herbaceous plant of this invention. It is a flow chart of the growth control method of the herbaceous plant of this invention. In the explanatory diagram of the growth stage, (a) is a diagram showing the case of Turkish gokyo, and (b) is a diagram showing the case of tomato. It is an external photograph of a small greenhouse of a herbaceous plant growth experiment. It is explanatory drawing of the daily average temperature, the effective lower limit temperature, and the period. It is a figure which shows the relationship between the integrated temperature and the period when the planting date is summer, winter, and rainy season, and the growth stage is stage I. It is a figure which shows the relationship between the integrated temperature and the period when the planting date is summer, winter, and rainy season, and the growth stage is stage II. It is a figure which shows the relationship between the integrated temperature and the period when the planting date is summer, winter, and rainy season, and the growth stage is stage III. It is a figure which shows the relationship between the integrated temperature and the period when the planting date is summer, winter, and rainy season, and the growth stage is all seasons.

As the herbaceous plant suitable for the present invention, items that are strongly affected by temperature during growth are suitable, and quantitative short-day plants, quantitative long-day plants, and neutral plants are applicable. For example, eustoma, tomato, cucumber, cyclamen, rose, gypsophila, statice sinuata, etc. fall under this category.

A small greenhouse 25 of the herbaceous plant 20 as shown in FIG. 4 was produced and a growth experiment was carried out. Equipped with a dedicated small greenhouse 25 (trade name: natural light type Fighttron), it was cultivated under four different temperature conditions for the eustoma variety Reina White. Cultivation temperature is 32 ° C / 26 ° C high temperature environment 51, 28 ° C / 22 ° C medium temperature environment 52, 24 ° C / 18 ° C low temperature environment 53 in light / dark season, and natural temperature in summer. In winter, there were four types of environments 54, which were heated to 15 ° C. The seedling raising temperature was constant at 27.5 ° C. in all environments, the time ratio of the light period / dark period of the seedling raising period was 20 hours / 4 hours, and the day length after planting was 20 hours. Then, the planting days were carried out in three types: summer, winter, and rainy season.

In addition, as shown in FIG. 3, the growth stages are the stage I 7 from the start of raising seedlings 3 to the moss 4 of the herbaceous plant, the stage II 8 from the moss 4 to the bud 5, and the flowering 6 from the bud 5. It was divided into the third stage 9 up to, and the whole stage 10 from the start of raising seedlings 3 to the flowering 6.

Then, the planting days are three seasons, summer, winter, and rainy season, the temperature is measured, and the change dates such as the seedling raising start date, moss extraction date, bud development date, and flowering date are obtained, and the period and daily average for each growth stage. The temperature and the average temperature during the period were calculated. The results are shown in Table 1 when the planting date is summer, Table 2 when the planting date is winter, and Table 3 when the planting date is the rainy season.

When the relationship between the integrated temperature (period average temperature x period) and the period in the phase I shown in Tables 1 to 3 is graphed in FIG. 6, the relationship between the integrated temperature A and the period B is obtained by the following approximate equation (linear equation). ) Holds.
Integrated temperature A = 22.423B + 20.57

When the relationship between the integrated temperature and the period in the second period shown in Tables 1 to 3 is graphed in FIG. 7, the following approximate equation (linear equation) holds for the relationship between the integrated temperature A and the period B.
Integrated temperature A = 13.933B + 360.12

When the relationship between the integrated temperature and the period in the third period shown in Tables 1 to 3 is graphed in FIG. 8, the following approximate equation (linear equation) holds for the relationship between the integrated temperature A and the period B.
Integrated temperature A = 11.619B + 437.05

When the relationship between the integrated temperature and the period shown in Tables 1 to 3 is graphed in FIG. 9, the following approximate equation (linear equation) holds for the relationship between the integrated temperature A and the period B.
Integrated temperature A = 12.43B + 1498

Further, from FIG. 5, the relationship between the daily average temperature, the period, the effective lower limit temperature 40, the integrated temperature, and the effective integrated temperature is that the average of the daily average temperature during the period is the period average temperature, and the integrated temperature is the period average temperature and the period. The effective integrated temperature is the value obtained by subtracting the value obtained by multiplying the effective lower limit temperature 40 by the period from the integrated temperature. From this, it is derived that the integrated temperature is obtained by adding a value obtained by multiplying the effective integrated temperature by the effective lower limit temperature 40 and the period. From this, it is suggested that the effective lower limit temperature 40 is a constant value as a coefficient of the period, and the effective integrated temperature is also a constant value. Therefore, since the relationship between the integrated temperature and the period is expressed by a linear equation in each of FIGS. 6 to 9, the value at the intersection with the vertical axis corresponds to the effective integrated temperature, and the coefficient when the period is used as a variable. Corresponds to the effective lower limit temperature 40. The results are shown in Table 4.

表４から、有効積算温度や有効下限温度は一定数である。

From Table 4, the effective integrated temperature and the effective lower limit temperature are constant numbers.

In addition, since a linear equation holds between the integrated temperature and the period for each growth stage, the inventor has come up with a growth control that realizes a desired growth level on a desired day.

First, in order to control the growth level, it is necessary to quantify the growth level, and as the quantification, the index at the start of growth of the growth stage is set to 0 for each growth stage, and the index at the end of growth of the growth stage is set. We decided to set a growth index of 1. That is, the growth index in the present invention is shown in Table 5, which shows the relationship between the growth stage and the growth index, for each of the 7th stage, the 8th stage, the 9th stage, and the 10th stage. In the growth stage, the start time is 0, the arrival time of the growth stage is 1, and the range between 0 and 1 is represented by a numerical value having a decimal point such as 0.1 or 0.5.

表５から、例えば発蕾の第II期において発蕾から開花までの生育レベルを５０％とすれば生育指数は０．５となる。この生育指数の設定によって、現在の生育レベルの把握と所望する日の所望する生育レベルの把握が数値に置き換えてできる。

From Table 5, for example, if the growth level from bud to flowering is 50% in the second stage of bud development, the growth index is 0.5. By setting this growth index, it is possible to grasp the current growth level and grasp the desired growth level on a desired day by replacing it with a numerical value.

Next, the growth index was associated with a linear equation between the integrated temperature and the period. Therefore, the growth rate per day was defined, and the value obtained by multiplying this growth rate by the number of growth days was used as the growth index. First, the daily growth rate is obtained by subtracting the effective lower limit temperature from the daily average temperature and dividing by the effective integrated temperature of the corresponding growth stage. Then, the value obtained by multiplying the growth rate per day by the number of days is used as the growth index. This is represented by the following equations (2) and (3).

Next, the growth index required by the next growth stage, that is, the growth index required to reach the desired growth index Z in the same growth stage is expressed by the following formula (4). The Z is an integer from 0 to 1 or a numerical value after the decimal point.

Next, in the case where the growth stages are the same, in order to realize the desired growth index of the growth stage in the desired number of days Y days from n days after the start date of the growth stage, assuming that the average daily temperature is Ts.
The growth index required to achieve this is calculated by the following formula (5).

但し、
Ｔｓ：所望する生育ステージにＹ日で達するための目標日平均気温
ａ：１を各生育ステージの有効積算温度で除算した値
ｂ：減算記号に各生育ステージの有効下限温度を有効積算温度で除算した値
Ｚ：各生育ステージの開始時を０とし各生育ステージ到達時を１として０超１以下の数字を生育レベルとして表した所望する生育指数（Ｚ−（ａ×Ｔｍ＋ｂ）×ｎ）は、０超〜１以下の内のいずれかの数値であること）
ｎ：各生育ステージにおける制御開始日の前日までの生育日数
Ｔｍ：各生育ステージにおけるｎ日までの期間平均気温。但し、ｎ＝０のときは０を代入する。
Ｙ：各生育ステージの生育期間の所望する日数 Therefore, the following equation (1) can be derived from the equations (4) and (5).

However,
Ts: Target daily average temperature a: 1 to reach the desired growth stage in Y days divided by the effective integrated temperature of each growth stage b: Subtract the effective lower limit temperature of each growth stage divided by the effective integrated temperature Value Z: The desired growth index (Z- (a × Tm + b) × n) in which the start time of each growth stage is 0, the arrival of each growth stage is 1, and the number greater than 0 and 1 or less is expressed as the growth level is Must be any of the values above 0 to 1 or less)
n: Number of growth days up to the day before the control start date at each growth stage Tm: Average temperature during the period up to n days at each growth stage. However, when n = 0, 0 is substituted.
Y: Desired number of days of growth period for each growth stage

Therefore, the present invention uses the above formula (1) to realize the growth state of the desired growth index of the desired growth stage of the herbaceous plant 20 within a few days of the desired day, the herbaceous plant herbaceous plant growth control method 2, growth. Control system 1, program, storage medium.

As shown in FIG. 1, the herbaceous plant growth control system 1 of the present invention includes an information processing means 22, a storage means 21, a temperature measuring means 24, a greenhouse 25, a temperature control means 26, a network 23, and a herbaceous plant 20. The information processing means 22 is a computer such as a personal computer, and controls the storage means 21, the temperature measuring means 24, and the temperature controlling means 26 via a network 23 or the like. The storage means 21 corresponds to an internal storage device such as a hard disk, an object storage, a cloud storage, a server computer, an optical disk, a magnetic disk such as a hard disk, a USB flash memory, an external storage device such as a magnetic tape, and any storage device. Also communicates with the information processing means 22.

The herbaceous plant growth control system 1 of the present invention is a herbaceous plant growth control system 1 that controls the growth of the herbaceous plant 20, and is an effective integrated temperature, an effective lower limit temperature, and a daily temperature for each growth stage of the herbaceous plant 20. Information and storage means for acquiring and storing information and change date information between growth stages including seedling growth start date, control start date information, and each growth stage from the control start date to a growth stage corresponding to a desired growth state. The above-mentioned description in paragraph [0050] based on the acquisition means for acquiring the desired growth index and the desired growth period of each growth stage, the information stored in the storage means, and the information acquired by the acquisition means. It is provided with a calculation means for calculating the target daily average temperature of each growth stage according to the formula (1), and a temperature control means for controlling the temperature with the target daily average temperature for which the desired growth period is calculated in the order of the growth stages.

The effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant 20 are acquired in advance from the start of raising seedlings of the herbaceous plant 20 to be controlled by temperature and stored in the storage means 21. Then, according to the growth of the herbaceous plant 20 subject to temperature control in the greenhouse 25, daily temperature information measured by the temperature measuring means 24, information on the number of days elapsed from the start of raising seedlings, and information on the date of change between growth stages are acquired. Then, it is stored in the storage means 21.

Then, when the desired growth index at each growth stage and the desired growth period of each growth stage from the current control start date to the growth stage corresponding to the desired growth state are acquired by the acquisition means, the calculation means is described as described above. The target daily average temperature is calculated by the formula (1). Then, the temperature control means 26 controls the temperature so that the desired growth period is set to the calculated target day average temperature in the order of the growth stages.

Next, the herbaceous plant growth control method 2 is a herbaceous plant growth control method for controlling the growth of the herbaceous plant, and is represented by the above formula (1) described in paragraph [0050] for each growth stage. By controlling the temperature at the target daily average temperature, the desired growth state is controlled in a desired number of days.

Further, the herbaceous plant growth control method 2 acquires and stores the effective integrated temperature and effective lower limit temperature for each growth stage of the herbaceous plant 20, daily air temperature information, and change date information between growth stages including the seedling growth start date. Acquisition of growth information storage step 11 and control start date information, a desired growth index at each growth stage from the control start date to a growth stage corresponding to a desired growth state, and a desired growth period of each growth stage. Based on the desired information acquisition step 12 to be performed, the information stored in the growth information storage step 11, and the information acquired in the desired information acquisition step 12, each growth stage is according to the formula (1) described in paragraph [0050]. It is provided with a calculation step 13 for calculating the target day average temperature, and a temperature control step 14 for controlling the temperature with the target day average temperature for which the desired growth period is calculated in the order of growth stages.

In the case of Eustoma grandiflorum, for example, the growth stage of herbaceous plant 20 is the growth stage of stage I 7 from the start of seedling raising to moss extraction, the growth stage of stage II 8 from moss extraction to bud development, and from bud to flowering. The growth stage of the third stage 9 or the growth stage of the entire stage 10 from the start of seedling raising to flowering. If the target day average temperature is calculated and the temperature is controlled by dividing into three stages, Phase I 7, Phase II 8, and Phase III 9, the desired growth state can be achieved within a few days of the desired day, and the desired growth state can be achieved in all stages 10. By obtaining the average daily temperature and controlling the temperature, a desired growth state can be achieved within the vicinity of a desired day.

First, there is a growth information memory step 11. The effective integrated temperature and effective lower limit temperature for each growth stage of a herbaceous plant are determined by growing the same herbaceous plant from the start of raising seedlings to flowering in advance before controlling the temperature, and growing from the relational expression between the integrated temperature and the period for each growth stage. Calculate the effective integrated temperature and the effective lower limit temperature for each stage. Then, the effective integrated temperature and the effective lower limit temperature for each growth stage are manually input and stored.

Next, after sowing the seeds of the herbaceous plant and raising the seedlings in the greenhouse after a wet low temperature treatment period, the daily temperature information in the greenhouse is acquired and stored from the temperature measuring means, and the seedling raising start date and moss extraction are performed. The change dates of the day, the bud date, and the flowering date are acquired by observation, and the change date information is stored by manual input.

Next, it is a desired information acquisition step 12. Determine the desired growth level of the herbaceous plant days after the current control start date. Then, the control start date, the desired growth index in each growth stage (Z in the above formula (1)) from the control start date to the growth stage corresponding to the desired growth state, and the desired growth period of each growth stage are set. Enter manually. For example, if the current control start date has passed n days in the I phase and the desired growth is in the flowering state in the III phase, the remaining desired growth days Y and the growth index Z in the I phase 1 is manually input, the desired number of growing days Y and the desired growth index Z of the second stage are manually input, and the desired number of growing days Y and the desired growth index Z of the third stage are manually input. Here, when the desired growth level in the third stage is 80%, 0.8 is manually input as the growth index Z. Further, it is a requirement that (Z- (a × Tm + b) × n) is in any numerical value from more than 0 to less than 1.

Next, it is a calculation step 13. The target daily average temperature for each growth stage from now on is calculated by the above formula (1). As the data to be included in the above formula (1), a, which is a value obtained by dividing 1 by the effective integrated temperature of each growth stage, is calculated for each growth stage, and the effective lower limit temperature of the growth stage is set as the subtraction symbol by the effective integrated temperature. The divided value b is calculated for each growth stage. Then, the number of growth days of the difference from the start date of each growth stage to the day before the control start date in the same growth stage is calculated as n days, and the value obtained by dividing the accumulated temperature up to n days in each growth stage by n days is the period average. Calculated as temperature.

Then, the target daily average temperature is calculated by the above formula (1) for each growth stage. By setting the calculated target day average temperature as the target day average temperature for the desired growth period at each growth stage from now on, it is desired to obtain what kind of growth level the herbaceous plant should have after how many days from the current control start date. It is an important requirement to realize.

Next, the temperature control step 14. In order to control the growth of herbaceous plants in the greenhouse, the temperature adjusting means 26 uses the target daily average temperature for which the desired growth period is calculated in the order of the growth stages of stage I 7, stage II 8, and stage III 9. Control the temperature. This makes it possible to realize the desired growth level of the herbaceous plant several days after the current control start date.

The calculated target daily average temperature Ts must be set to a desired growth period so that the lower limit temperature is above the effective lower limit temperature and the upper limit temperature is equal to or lower than the temperature at which growth is not suppressed due to the high temperature.

Next, the use of the present invention will be described with reference to a model example. For example, the effective lower limit temperature of the phase I 7 from the start of seedling raising to the moss extraction of the selected herbaceous plant is 20 ° C., the effective integrated temperature is 200 ° C., and the effective lower limit temperature of the phase II 8 from the moss extraction to the bud development. When the effective integrated temperature is 300 ° C at 15 ° C, the effective lower limit temperature of the third stage 9 from bud to flowering is 10 ° C, and the effective integrated temperature is 400 ° C, the present is the growth stage I stage. It is counted as the 5th day, and the average temperature Tm during the period up to the 5th day of the I period is calculated to be 25 ° C., and the desired number of growing days is 30 days for the I period 7 and 20 days for the II period 8. When the third stage 9 is manually input as 20 days and the desired growth level is manually input as the growth index 0.4 in the third stage 9, the target daily average temperature Ts controlled at each growth stage is as follows. Is calculated to. The temperature at which growth is not suppressed by the high temperature of the herbaceous plant is set to 32 ° C.

First, the calculation according to the above equation (1) is automatically performed for the I period 7. a is calculated as 0.005, b is calculated as -0.1, Z is manually input as 1 to grow on the moss, which is the reaching point of the growth stage of the I stage, and the average temperature Tm during the period is It is calculated as 25 ° C, n is calculated as 5 days, Y is manually input as 30 days, and the target day average temperature Ts is calculated as 26.5 ° C by the above formula (1). The temperature is controlled to an average daily temperature of 26.5 ° C.

Next, the calculation according to the above equation (1) is automatically performed for the second period 8. a is calculated as 0.003, b is calculated as -0.05, Z is manually entered as 1 to grow on the buds, which is the reaching point of the growth stage of the second stage, and n is 0 days. It is calculated, Y is input as 20 days, and the target day average temperature Ts is calculated as 33.3 ° C by the above formula (1). Therefore, in the second period, the target day average temperature is 33.3 ° C for 20 days. Control the temperature.

Next, the calculation according to the above equation (1) is automatically performed for the third period 9. a is calculated as 0.0025, b is calculated as -0.025, Z is manually entered with a desired growth index of 0.4, n is calculated as 0 days, and Y is entered as 20 days. Since the target day average temperature Ts is calculated to be 30 ° C. by the above formula (1), the temperature is controlled at the target day average temperature of 30 ° C. for 20 days in Phase III 9. Since the temperature of 30 ° C. is 32 ° C. or lower, which is the temperature at which growth is suppressed, it is not necessary to modify the number of growth days. Thereby, it is possible to control the growth of the selected herbaceous plant to the state of the target growth index of the desired target growth stage within a few days of the desired day.

Further, in the herbaceous plant growth control method 2, one growth stage can be set from the start of raising seedlings to flowering of the herbaceous plant. In this case, it is suitable for controlling the desired growth within the vicinity of the desired date.

In addition, the herbaceous plant growth control program can cause a computer to execute the herbaceous plant growth control method 2 of paragraph [0056] or [0057].

Further, the growth control program is obtained from the first growth information storage step of manually inputting and storing the effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant in a computer, and the air temperature measuring means from the start of seedling raising. Second growth information storage step that acquires and stores daily temperature information and change date information between growth stages including seedling growth start date by manual input, control start date information, and desired growth state from the control start date. The desired information acquisition steps 12 and 1 for manually inputting the desired growth index at each growth stage and the desired growth period at each growth stage up to the growth stage corresponding to the above are divided by the effective integrated temperature of each growth stage. Calculate the value obtained by dividing the effective lower limit temperature of the growth stage by the effective integrated temperature with the subtraction symbol, and control start date in each growth stage from each change date information including seedling growth start date and control start date information. Calculate the number of growth days up to the day before, calculate the period average temperature up to the day before the control start date in each growth stage, and use the above formula (1) described in paragraph [0050] to calculate the target day average temperature of each growth stage. The calculation step 13 for calculating the temperature and the temperature control step 14 for controlling the temperature of the temperature adjusting means so that the desired growth period is the calculated target day average temperature in the order of the growth stages are executed.

Then, the computer-readable storage medium stores the program.

Examples of the present invention will be described below, but the present invention is not limited to the following examples.

This was carried out using the equipment shown in FIGS. 1 and 4 for the eustoma variety Reina White. The effective lower limit temperature and the effective integrated temperature are the same as those shown in Table 6 above.
On November 2, 2017, which is the start date of the second stage, the desired date was set to 110 days later, and the desired growth level was set to the end level of the second stage (growth index 1). Phase II a was calculated to be 0.0028 and b was calculated to be -0.0386. Further, since the present is the start date of the second stage, the n days of growth in the second stage are counted as 0 days, and the data of the period average temperature Tm is counted as none. The above data was calculated, and the target daily average temperature was calculated to be 17.2 ° C. by the following formula (6).
Ts = 1 / 0.0028 ((1- (0.0028 × 0-0.0386) × 0) /110+0.0386) ... (6)
Therefore, the temperature was controlled so that the average daily temperature for 110 days was 17.2 ° C. As a result, Phase II was completed on the 111th day of February 21, 2018. Therefore, the desired growth level could be achieved within a few days of the desired day.

1 Growth control system 2 Growth control method 3 Start of raising seedlings 4 Extraction of moss 5 Buds 6 Flowering 7 Phase I 8 Phase II 9 Phase III 10 All stages 11 Growth information storage step 12 Desired information acquisition step 13 Calculation step 14 Temperature control Step 20 Herbaceous plant 21 Storage means 22 Control means 23 Network 24 Temperature measuring means 25 Greenhouse 26 Temperature adjusting means 31 Sowing / seedling raising start or axillary bud development 32 Bud 33 Flowering 34 Fruit harvest 40 Effective lower limit temperature 51 High temperature environment 52 Medium temperature environment 53 Low temperature Environment 54 Nariyuki environment

Claims (7)

A method for controlling the growth of herbaceous plants, which is a method for controlling the growth of herbaceous plants.
A method for controlling the growth of a herbaceous plant, which comprises controlling the temperature for each growth stage at a target daily average temperature represented by the following formula (1) to control the growth state to a desired number of days.

However,
Ts: Target daily average temperature a: 1 to reach the desired growth stage in Y days divided by the effective integrated temperature of each growth stage b: Subtract the effective lower limit temperature of each growth stage divided by the effective integrated temperature Value Z: The desired growth index (Z- (a × Tm + b) × n) in which the start time of each growth stage is 0, the arrival of each growth stage is 1, and the number greater than 0 and 1 or less is expressed as the growth level is Must be any of the values above 0 to 1 or less)
n: Number of growth days up to the day before the control start date at each growth stage Tm: Average temperature during the period up to n days at each growth stage. However, when n = 0, 0 is substituted.
Y: Desired number of days of growth period for each growth stage A growth information storage step that acquires and stores effective integrated temperature and effective lower limit temperature for each growth stage of a herbaceous plant, daily temperature information, and change date information between growth stages including the seedling raising start date.
Control start date information, a desired growth index at each growth stage from the control start date to a growth stage corresponding to a desired growth state, and a desired information acquisition step for acquiring a desired growth period of each growth stage.
Based on the information stored in the growth information storage step and the information acquired in the desired information acquisition step, the calculation step of calculating the target daily average temperature of each growth stage by the formula (1) according to claim 1. ,
The method for controlling the growth of a herbaceous plant according to claim 1, further comprising a temperature control step for controlling the temperature at the target daily average temperature for which the desired growth period is calculated in the order of growth stages. The method for controlling the growth of a herbaceous plant according to claim 1 or 2, wherein the herbaceous plant is a quantitative short-day plant, a quantitative long-day plant or a neutral plant. A herbaceous plant growth control system that controls the growth of herbaceous plants.
A storage means for acquiring and storing effective integrated temperature and effective lower limit temperature for each growth stage of herbaceous plants, daily temperature information, and change date information between growth stages including the seedling raising start date.
Control start date information, a desired growth index at each growth stage from the control start date to a growth stage corresponding to a desired growth state, and an acquisition means for acquiring a desired growth period of each growth stage.
Based on the information stored in the storage means and the information acquired by the acquisition means, the calculation means for calculating the target daily average temperature of each growth stage by the formula (1) according to claim 1.
A herbaceous plant growth control system comprising: a temperature control means for controlling the temperature at the target daily average temperature for which the desired growth period is calculated in the order of growth stages. A herbaceous plant growth control program comprising causing a computer to execute the herbaceous plant growth control method according to claim 1 or 2. On the computer
The first growth information storage step to acquire and store the effective integrated temperature and the effective lower limit temperature for each growth stage of the herbaceous plant by manual input,
A second growth information storage step that acquires and stores daily temperature information from the temperature measuring means from the start of seedling raising and change date information between growth stages including the seedling raising start date by manual input.
Control start date information, a desired growth index at each growth stage from the control start date to a growth stage corresponding to a desired growth state, and a desired information acquisition step for manually inputting a desired growth period of each growth stage. When,
Calculate the value obtained by dividing 1 by the effective integrated temperature of each growth stage, calculate the value obtained by dividing the effective lower limit temperature of the growth stage by the effective integrated temperature with the subtraction symbol, and information and control of each change date including the seedling growth start date. From the start date information, the number of growth days up to the day before the control start date in each growth stage is calculated, the period average temperature up to the day before the control start date in each growth stage is calculated, and the above formula (1) according to claim 1. ) To calculate the target daily average temperature of each growth stage, and
A growth control program for executing a temperature control step of controlling the temperature of a temperature adjusting means so that the desired growth period is calculated to be the target daily average temperature calculated in the order of growth stages. A computer-readable storage medium comprising storing the program according to claim 5 or 6.

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