Planting device and method for evaluating rice disease resistance

By designing a planting device for rice disease resistance assessment, the problem of insufficient inoculation of single pathogenic bacteria and pathogenic bacteria in the prior art is solved, and efficient evaluation of multiple pathogenic bacteria combinations is achieved, and the evaluation effect is improved.

CN118648462BActive Publication Date: 2025-03-25HEILONGJIANG ACAD OF AGRI SCI RICE RES INST
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Patent Information

Application Number
CN202411096036.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-03-25
Estimated Expiration
2044-08-12

AI Technical Summary

Technical Problem

The prior art can only inoculate a single pathogen, and the pathogenic activity cannot be maximized, which affects the effect of rice disease resistance evaluation.

Method used

A planting device for the assessment of rice disease resistance is designed, including a containment assembly, a liquid spraying device, a temperature regulation device and an image acquisition device. By dividing the test area into multiple sub-regions, each sub-region selects a different combination of pathogens, and adjusts the temperature and humidity according to the sum of pathogen activities as the target to form a combination of pathogens to evaluate the disease resistance of rice.

Benefits of technology

The disease resistance evaluation of multiple pathogens is achieved simultaneously, which improves the evaluation effect and ensures that each pathogen has the greatest impact on rice in a highly active state.

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Abstract

The present application discloses a planting device and method for evaluating the disease resistance of rice, which relates to the technical field of rice cultivation, wherein the device comprises: an enclosure component, a liquid spraying device, a temperature regulating device, an image acquisition device and a control device, wherein the control device establishes an objective function with the maximum sum of the activities of pathogens as the goal, solves the objective function to obtain the target temperature and the target humidity, controls the liquid spraying device and the temperature regulating device to adjust the humidity and temperature of the sub-area, controls the liquid spraying device to spray the pathogen stock solution, and the image acquisition device acquires the image of the rice to be evaluated to determine the disease resistance of the rice to be evaluated. The present application selects different pathogen combinations for each sub-area, and determines the required environmental temperature and environmental humidity with the maximum sum of the activities as the goal, under such environmental temperature and environmental humidity, each pathogen has a high activity, and can simultaneously perform disease resistance evaluations of multiple pathogens, and the evaluation effect is also relatively good.
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Description

Technical Field

[0001] The present application relates to the technical field of rice cultivation, and in particular to a planting device and method for evaluating rice disease resistance. Background Art

[0002] Rice is an annual grass plant. In my country, rice is mainly grown in the southern and northeastern regions. The evaluation of rice quality, especially its disease resistance, is an important basis for selecting high-quality rice varieties.

[0003] In the rice breeding process, it is necessary to evaluate the disease resistance of each variety. Since the pathogens in the natural environment cannot be controlled, the evaluation environment is generally artificially created, the rice variety to be evaluated is inoculated with pathogens, and the diseased condition of rice is observed in the subsequent growth process to evaluate the disease resistance of rice, such as CN117598125A. However, there are many kinds of actual rice pathogens, such as rice blast pathogen, Rhizoctonia solani, bacterial leaf blight pathogen, Xanthomonas oryzae, etc. These pathogens will cause rice to suffer from rice blast, sheath blight, bacterial leaf blight, bacterial streak, etc., respectively, which poses a serious threat to the growth of rice. When the prior art is inoculated with pathogens in rice, only a single pathogen can be inoculated, and the environmental conditions are heavily dependent on the natural environment, resulting in the activity of the pathogens being unable to reach the maximum, affecting the pathogenicity of the pathogens, and the evaluation effect is seriously affected. Summary of the invention

[0004] The embodiments of the present application provide a planting device and method for evaluating rice disease resistance, which are used to solve the problems in the prior art that only a single pathogen can be inoculated and the pathogen activity cannot reach the maximum.

[0005] On the one hand, an embodiment of the present application provides a planting device for evaluating rice disease resistance, comprising:

[0006] The enclosure assembly comprises an outer enclosure plate and an inner enclosure plate, wherein the outer enclosure plate is used to surround the test area, and the inner enclosure plate is connected to the inside of the outer enclosure plate and is used to divide the test area into a plurality of sub-areas, wherein the same variety of rice to be evaluated is planted in the plurality of sub-areas;

[0007] A liquid spraying device is arranged on the outer enclosure plate and the inner enclosure plate, and is used to spray water or pathogen stock solution to the rice to be evaluated in the corresponding sub-area, wherein the spraying of water is used to adjust the humidity in the sub-area, and the spraying of pathogen stock solution is used to inoculate the pathogen to the rice to be evaluated;

[0008] A temperature regulating device is arranged on the outer enclosure plate and the inner enclosure plate, and is used to output air with a target temperature to the sub-area to regulate the temperature of the sub-area to the target temperature;

[0009] An image acquisition device is arranged on the outer enclosure plate and the inner enclosure plate, and is used to acquire images of the rice to be evaluated in the sub-area;

[0010] The control device is electrically connected to the liquid spraying device, the temperature regulating device and the image acquisition device respectively. The control device selects a pathogen combination for each sub-region, and each pathogen combination contains multiple pathogens. The control device establishes an objective function according to the situation of the pathogen combination in each sub-region with the maximum sum of the activities of the pathogens as the goal, solves the objective function to obtain the target temperature and target humidity of the corresponding sub-region, controls the liquid spraying device and the temperature regulating device to adjust the humidity and temperature of the sub-region to the target humidity and target temperature respectively, and then controls the liquid spraying device to spray the pathogen stock solution to form the pathogen combination in the sub-region. After a predetermined time, the image acquisition device acquires an image of the rice to be evaluated, and determines the disease resistance of the rice to be evaluated after analyzing the image.

[0011] On the other hand, the present application also provides a planting method for evaluating rice disease resistance, comprising:

[0012] A pathogen combination is selected for each sub-region, and each pathogen combination contains multiple pathogens;

[0013] According to the combination of pathogens in each sub-area, an objective function is established with the maximum sum of pathogen activities as the goal;

[0014] Solving the objective function to obtain the target temperature and target humidity of the corresponding sub-area;

[0015] Controlling the liquid spraying device and the temperature regulating device to adjust the humidity and temperature of the sub-area to the target humidity and target temperature respectively, and controlling the liquid spraying device to spray the pathogen stock solution to form a pathogen combination in the sub-area;

[0016] After a predetermined period of time, images of the rice to be evaluated are collected, and the disease resistance of the rice to be evaluated is determined after the images are analyzed.

[0017] The planting device and method for evaluating rice disease resistance in the present application have the following advantages:

[0018] The test area is divided into multiple sub-areas, and different pathogen combinations are selected for each sub-area. For the corresponding pathogen combinations, the required ambient temperature and humidity are determined with the goal of maximizing the sum of activities. Under such ambient temperature and humidity, each pathogen can have a higher activity, so that the disease resistance of multiple pathogens can be evaluated at the same time, and the evaluation effect is relatively good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall structure of a planting device for evaluating rice disease resistance provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the top view of the enclosure assembly provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of the enclosure plate provided in the embodiment of the present application;

[0023] Figure 4 A schematic diagram of the internal division of a liquid storage tank provided in an embodiment of the present application.

[0024] Explanation of the accompanying drawings: 100, outer protective plate; 101, connecting mechanism; 102, top baffle; 110, liquid spraying device; 120, temperature regulating device; 130, image acquisition device; 200, inner protective plate; 300, liquid storage tank; 310, water storage tank; 311, water delivery pump; 320, raw liquid tank; 330, mixing tank; 331, suction pump; 332, infusion pump; 333, stirring device. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] Figure 1-4 A schematic diagram of the structure of a planting device for evaluating rice disease resistance provided in an embodiment of the present application. The present application provides a planting device for evaluating rice disease resistance, including:

[0027] The enclosure assembly includes an outer enclosure plate 100 and an inner enclosure plate 200, wherein the outer enclosure plate 100 is used to surround the test area, and the inner enclosure plate 200 is connected to the inner part of the outer enclosure plate 100 to divide the test area into a plurality of sub-areas, wherein the same variety of rice to be evaluated is planted in each of the plurality of sub-areas;

[0028] A liquid spraying device 110 is provided on the outer enclosure plate 100 and the inner enclosure plate 200, and is used to spray water or pathogen stock solution to the rice to be evaluated in the corresponding sub-area, wherein the spraying of water is used to adjust the humidity in the sub-area, and the spraying of pathogen stock solution is used to inoculate the pathogens to the rice to be evaluated;

[0029] The temperature regulating device 120 is arranged on the outer enclosure plate 100 and the inner enclosure plate 200, and the temperature regulating device 120 is used to output air with a target temperature to the sub-area to regulate the temperature of the sub-area to the target temperature;

[0030] An image acquisition device 130 is disposed on the outer enclosure plate 100 and the inner enclosure plate 200, and is used to acquire images of the rice to be evaluated in the sub-area;

[0031] The control device is electrically connected to the liquid spraying device 110, the temperature regulating device 120 and the image acquisition device 130 respectively. The control device selects a pathogen combination for each sub-region, and each pathogen combination contains multiple pathogens. The control device establishes an objective function based on the situation of the pathogen combination in each sub-region with the maximum sum of the activities of the pathogens as the goal, and solves the objective function to obtain the target temperature and target humidity of the corresponding sub-region. The control device controls the liquid spraying device 110 and the temperature regulating device 120 to adjust the humidity and temperature of the sub-region to the target humidity and target temperature respectively, and then controls the liquid spraying device 110 to spray the pathogen stock solution to form the pathogen combination in the sub-region. After a predetermined time, the image acquisition device 130 acquires an image of the rice to be evaluated, and determines the disease resistance of the rice to be evaluated after analyzing the image.

[0032] Exemplarily, the outer enclosure panels 100, the inner enclosure panels 200, and the outer enclosure panels 100 and the inner enclosure panels 200 are detachably connected by a connecting mechanism 101. The connecting mechanism 101 can adopt a T-shaped slide and a T-shaped slider that cooperate with each other, or a magnet block that cooperates with each other. When a T-shaped slide and a T-shaped slider are adopted, the T-shaped slide and the T-shaped slider can be respectively set at different positions of an outer enclosure panel 100 and an inner enclosure panel 200, and the structure of each outer enclosure panel 100 is the same, and the structure of each inner enclosure panel 200 is also the same, so that the outer enclosure panel 100 and the inner enclosure panel 200 can be freely combined to be combined according to the size of the actual test area.

[0033] When magnet blocks are used, they can be buried at fixed positions of each outer enclosure panel 100 and each inner enclosure panel 200, and the outer enclosure panels 100, the inner enclosure panels 200, and the outer enclosure panels 100 and the inner enclosure panels 200 will be stably connected together through the magnetic force between the magnet blocks.

[0034] In the embodiment of the present application, a top baffle 102 extending obliquely upward is further provided at the top of each outer enclosure plate 100 and inner enclosure plate 200. After installation, the top baffle 102 will be located above the sub-area, and the top baffle 102 can improve the sealing of the sub-area and reduce the amount of pathogen stock solution that spreads to the adjacent sub-area when sprayed. It should be understood that the outer enclosure plate 100 has a sub-area only on one side, so only one top baffle 102 can be set on the top, while the inner enclosure plate 200 has sub-areas on both sides, so it is necessary to set a top baffle 102 on each side of the top, and the two top baffles 102 face different directions.

[0035] In the embodiment of the present application, the objective function is expressed as:

[0036]

[0037] In the formula, A i Indicates i The activity of pathogen combinations in each subregion, N Indicates the number of pathogens in the pathogen combination. A ij Indicates i In the sub-area j The activity of pathogens, i and j They are the sub-region number and the pathogen type number in the pathogen combination respectively.

[0038] The activity of each pathogen in the pathogen combination is a mapping function of temperature and humidity. An inoculation experiment is carried out on rice for each pathogen. In the inoculation experiment, the ambient temperature and ambient humidity are controlled at a variety of different values. The disease condition of rice after the inoculation experiment is used as the activity data of the current pathogen under the current ambient temperature and ambient humidity. After inoculation experiments are carried out on each pathogen at a variety of different ambient temperatures and ambient humidity, multiple data groups are obtained, each data group containing ambient temperature, ambient humidity and activity data. The multiple data groups are fitted to obtain a mapping function.

[0039] Taking the pathogen combination consisting of rice blast pathogen, Rhizoctonia solani, bacterial leaf blight pathogen and Xanthomonas oryzae as an example, N The value is 4. j =1, 2, 3, 4 represent rice blast pathogen, Rhizoctonia solani, bacterial leaf blight pathogen and Xanthomonas oryzae, respectively. A ij When a polynomial is used for fitting, the following expression can be obtained:

[0040]

[0041] In the formula, t Indicates the ambient temperature, h Indicates the ambient humidity. a j1 , b j1 , c j1 , a j2 , b j2 , c j2 are the coefficients of each term respectively. It can be seen that there are two independent variables in the above formula, namely, ambient temperature and ambient humidity. Therefore, a three-dimensional coordinate system can be established, with ambient temperature as the X-axis, ambient humidity as the Y-axis, and activity data as the Z-axis, to plot the mapping function of each pathogen. In actual use, multiple combinations of ambient temperature and ambient humidity can be determined, and then the corresponding activity data can be obtained by querying in the mapping function.

[0042] Since different pathogens have different activities under the same ambient temperature and ambient humidity, there is no same ambient temperature and ambient humidity that can maximize the activity of each pathogen. Therefore, the present application adopts an objective function with the maximum sum of activities. This objective function reconciles the different responses of multiple pathogens to ambient temperature and ambient humidity. The target temperature and target humidity obtained after solving the objective function can make each pathogen have higher activity. Therefore, after artificially creating the temperature and humidity environment, the rice to be evaluated can produce the strongest disease manifestations when all pathogens have high activity, thereby improving the evaluation effect.

[0043] Since different pathogens will affect the disease condition of rice, this application divides the rice to be evaluated in the same test area into multiple sub-areas, and selects different pathogen combinations for each sub-area. After completing the evaluation of disease resistance in each sub-area, the disease resistance data of the current rice to be evaluated to each pathogen will be obtained. The disease resistance data of multiple sub-areas are combined, specifically, the disease resistance data of each pathogen is averaged to obtain more real and reliable disease resistance data.

[0044] Furthermore, in the inoculation experiment, inoculation experiments are carried out on multiple different varieties of rice under the same ambient temperature and ambient humidity, and the average value of the activity data of multiple different varieties of rice under the same ambient temperature and ambient humidity is taken as the activity data under the current ambient temperature and ambient humidity.

[0045] Furthermore, three mounting rods are arranged at the top of the outer enclosure plate 100 and the inner enclosure plate 200, and the three mounting rods are located at the points where the length of the outer enclosure plate 100 and the inner enclosure plate 200 is divided into four equal parts, and the liquid spraying device 110 and the image acquisition device 130 are respectively located on the mounting rods on both sides, and the temperature adjustment device 120 is located on the central mounting rod. After adopting this installation method, each liquid spraying device 110 can cover a quarter of the area of ​​the sub-region, and similarly, the image acquisition device 130 can also cover a quarter of the area of ​​the sub-region, so all the liquid spraying devices 110 in the same sub-region can just cover the entire sub-region, and all the image acquisition devices 130 will also cover the entire sub-region, which improves the utilization rate of the hardware while ensuring full coverage of the sub-region.

[0046] In a possible embodiment, a genetic algorithm may be used to solve the objective function.

[0047] Exemplarily, a genetic algorithm is a release algorithm that simulates the intergenerational inheritance of organisms in order to find the best solution under limited samples, that is, in this application, to make the sum of the activities of all pathogens reach the maximum target temperature and target humidity.

[0048] When solving the objective function using a genetic algorithm, it is necessary to go through the process of initialization, selection, crossover, and mutation in sequence. In the initialization step, multiple groups of temperature and humidity will be set manually. These data groups are limited. After selection, crossover, and mutation, as many data groups as possible will be generated. The purpose of the genetic algorithm is to improve the sample, that is, the diversity of the data group in this application, and then find the best data group in the richest possible data group. In the selection step, for each data group generated by initialization, the fitness value of each data group will be calculated, and the fitness value is determined according to the objective function. The number of data groups with the largest fitness value, such as 5 or 10 data groups, is selected to enter the crossover step. In the crossover step, a part of the data in the data group will be exchanged, such as exchanging temperature data or humidity data. For the data group after the crossover process, the data in each data group will be further changed by a certain amplitude in the mutation step. So far, a cycle of solving has been completed. If the maximum value of the fitness value of the data group obtained after the end of the cycle exceeds the maximum value of the fitness value obtained by the previously completed cycle, the maximum value of the fitness value will be updated, and the iteration cycle will continue until the maximum value of the fitness value no longer increases, or the number of iterations of the cycle is reached. The data set finally obtained is the optimal data set.

[0049] In a possible embodiment, after the image acquisition device 130 acquires the image, the control device uses the evaluation model to analyze and process the image to determine the disease resistance of the rice to be evaluated.

[0050] Exemplarily, the evaluation model in the present application is established based on a convolutional neural network model, which includes an input layer, a convolution layer, a pooling layer, a fully connected layer and an output layer connected in sequence, wherein the input layer is used to receive an image, the convolution layer and the pooling layer are used to extract features in the image, and the fully connected layer and the output layer are used to classify the features to determine the category to which the features in the image belong.

[0051] In this application, the images contain information about diseases occurring in rice leaves, ears, and other locations. Each disease has different manifestations. By extracting features from these images, detailed information about the disease can be obtained. Based on the correlation between the disease manifestations and the disease names, the names and numbers of diseases occurring on rice can be obtained. Statistics are collected for each disease, i.e., the number of pathogens that occur. The number of pathogens that occur can be used as a basis for determining the disease resistance of the rice to be evaluated.

[0052] In the embodiments of the present application, an inoculation experiment is required before testing the test area. In the inoculation experiment, the planting device in the present application can also be used to spray the pathogen stock solution and control the temperature and humidity, and the post-inoculation image can be processed to determine the activity of each pathogen.

[0053] In a possible embodiment, the liquid spraying device 110 includes a water nozzle and a raw liquid nozzle, and the water nozzle and the raw liquid nozzle are connected to the liquid storage tank 300 through a water pipe and a raw liquid pipe respectively. The liquid storage tank 300 is internally divided into a water storage tank 310 and a raw liquid tank 320, and the water pipe and the raw liquid pipe are connected to the water storage tank 310 and the raw liquid tank 320 respectively.

[0054] Exemplarily, the liquid storage tank 300 further has a mixing box 330 inside, and the suction pump 331 transports the pathogen stock solution in each stock solution tank 320 to the mixing box 330 . After the multiple pathogen stock solutions are mixed in the mixing box 330 , they are transported to the stock solution tube by the infusion pump 332 .

[0055] The liquid storage tank 300 in the present application can be set at the outside of each sub-area. The water pipe and the raw liquid pipe leading out of the water nozzle and the raw liquid nozzle are divided into two sections, one of which is fixedly connected to the water nozzle and the raw liquid nozzle respectively, and moves with the outer protective plate 100 and the inner protective plate 200, while the other section is fixedly connected to the liquid storage tank 300. The two sections are connected by a detachable joint. After the installation of the outer protective plate 100 and the inner protective plate 200 is completed, the two sections of the water pipe and the raw liquid pipe can be connected.

[0056] A water delivery pump 311 is provided inside the water storage tank 310, and the water delivery pump 311 is connected to a section of water pipe. There are multiple stock liquid tanks 320, and each stock liquid tank 320 is isolated from each other. Each stock liquid tank 320 is provided with a pipeline, and the pipeline is connected to the liquid suction pump 331, that is, only one liquid suction pump 331 is provided in the present application, and the liquid suction pump 331 is connected to all stock liquid tanks 320, and a solenoid valve is provided on the pipeline connected to each stock liquid tank 320, and the solenoid valve is controlled by the control device. Under the control of the control device, only one solenoid valve is opened, and the other solenoid valves are closed, so as to accurately deliver a certain amount of pathogen stock solution to the mixing tank 330, until a certain amount of pathogen stock solution in the required stock liquid tanks 320 is delivered to the mixing tank 330, and all the solenoid valves are closed. Then the stirring device 333 is started to evenly stir the various pathogen stock solutions, and finally the infusion pump 332 delivers the evenly stirred pathogen stock solution mixture to the stock solution nozzle through the stock solution pipe, and finally sprays it into the sub-area.

[0057] It should be understood that the present application can set up the same liquid storage tank 300 outside each sub-area, and the pathogen stock solution stored therein is also the same. The control device controls the suction pump 331 to only transport the pathogen stock solution in the pathogen combination corresponding to each sub-area in the stock liquid tank 320 to the mixing tank 330, instead of transporting the pathogen stock solution in all the stock liquid tanks 320 to the mixing tank 330.

[0058] The present application also provides a planting method for evaluating rice disease resistance, the method comprising the following steps:

[0059] A pathogen combination is selected for each sub-region, and each pathogen combination contains multiple pathogens;

[0060] According to the combination of pathogens in each sub-area, an objective function is established with the maximum sum of pathogen activities as the goal;

[0061] Solving the objective function to obtain the target temperature and target humidity of the corresponding sub-area;

[0062] Control the liquid spraying device 110 and the temperature regulating device 120 to adjust the humidity and temperature of the sub-area to the target humidity and the target temperature respectively, and control the liquid spraying device 110 to spray the pathogen stock solution to form a pathogen combination in the sub-area;

[0063] After a predetermined period of time, images of the rice to be evaluated are collected, and the disease resistance of the rice to be evaluated is determined after the images are analyzed.

[0064] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A planting device for evaluating rice disease resistance, characterized in that: include: An enclosure assembly comprises an outer enclosure plate (100) and an inner enclosure plate (200), wherein the outer enclosure plate (100) is used to surround a test area, and the inner enclosure plate (200) is connected to the inside of the outer enclosure plate (100) and is used to divide the test area into a plurality of sub-areas, wherein the same variety of rice to be evaluated is planted in each of the plurality of sub-areas; a liquid spraying device (110), arranged on the outer enclosure plate (100) and the inner enclosure plate (200), the liquid spraying device (110) being used to spray water or pathogen stock solution onto the rice to be evaluated in the corresponding sub-area, wherein spraying water is used to adjust the humidity in the sub-area, and spraying pathogen stock solution is used to inoculate pathogens onto the rice to be evaluated; a temperature regulating device (120), arranged on the outer enclosure plate (100) and the inner enclosure plate (200), the temperature regulating device (120) being used to output air having a target temperature to the sub-area, so as to regulate the temperature of the sub-area to the target temperature; An image acquisition device (130) is arranged on the outer enclosure plate (100) and the inner enclosure plate (200), and the image acquisition device (130) is used to acquire an image of the rice to be evaluated in the sub-area; A control device is electrically connected to the liquid spraying device (110), the temperature regulating device (120) and the image acquisition device (130), respectively. The control device selects a pathogen combination for each sub-region, each pathogen combination comprising a plurality of pathogens. The control device establishes an objective function based on the situation of the pathogen combination in each sub-region with the maximum sum of pathogen activities as the target, solves the objective function to obtain the target temperature and target humidity of the corresponding sub-region, controls the liquid spraying device (110) and the temperature regulating device (120) to adjust the humidity and temperature of the sub-region to the target humidity and the target temperature, respectively, and then controls the liquid spraying device (110) to spray pathogen stock solution to form the pathogen combination in the sub-region. After a predetermined time, the image acquisition device (130) acquires the image of the rice to be evaluated, and determines the disease resistance of the rice to be evaluated after analyzing the image.

2. A planting device for evaluating rice disease resistance according to claim 1, characterized in that: The objective function is expressed as: In the formula, A i Indicates i the activity of the pathogen combination in each of the sub-regions, N represents the number of pathogenic bacteria in the pathogen combination, A ij Indicates i In the sub-area j The activity of pathogens, i and j They are respectively the number of the sub-region and the type number of the pathogens in the pathogen combination.

3. A planting device for evaluating rice disease resistance according to claim 2, characterized in that: The activity of each pathogen in the pathogen combination is a mapping function of temperature and humidity. An inoculation experiment is carried out on rice for each pathogen. In the inoculation experiment, the ambient temperature and ambient humidity are controlled at a variety of different values. The disease condition of the rice after the inoculation experiment is used as the activity data of the current pathogen under the current ambient temperature and ambient humidity. After inoculation experiments are carried out on each pathogen under a variety of different ambient temperatures and ambient humidity, a plurality of data groups are obtained, each of the data groups comprising ambient temperature, ambient humidity and activity data. The plurality of data groups are fitted to obtain the mapping function.

4. A planting device for evaluating rice disease resistance according to claim 3, characterized in that: In the inoculation experiment, inoculation experiments were carried out on multiple different varieties of rice under the same ambient temperature and ambient humidity, and the average value of the activity data of multiple different varieties of rice under the same ambient temperature and ambient humidity was taken as the activity data under the current ambient temperature and ambient humidity.

5. The planting device for evaluating rice disease resistance according to claim 1, characterized in that: A genetic algorithm is used to solve the objective function.

6. The planting device for evaluating rice disease resistance according to claim 1, characterized in that: After the image acquisition device (130) acquires the image, the control device uses the evaluation model to analyze and process the image to determine the disease resistance of the rice to be evaluated.

7. The planting device for evaluating rice disease resistance according to claim 1, characterized in that: The outer enclosure panels (100), the inner enclosure panels (200), and the outer enclosure panels (100) and the inner enclosure panels (200) are detachably connected via connection mechanisms (101).

8. The planting device for evaluating rice disease resistance according to claim 1, characterized in that: The liquid spraying device (110) comprises a water spray head and a raw liquid spray head, the water spray head and the raw liquid spray head are connected to a liquid storage tank (300) via a water pipe and a raw liquid pipe respectively, the liquid storage tank (300) is internally divided into a water storage tank (310) and a raw liquid tank (320), the water pipe and the raw liquid pipe are connected to the water storage tank (310) and the raw liquid tank (320) respectively.

9. A planting device for evaluating rice disease resistance according to claim 8, characterized in that: The liquid storage box (300) further comprises a mixing box (330) inside, and a liquid suction pump (331) transports the pathogen stock solution in each of the stock solution boxes (320) to the mixing box (330), and multiple pathogen stock solutions are mixed in the mixing box (330) and then transported to the stock solution tube by an infusion pump (332).

10. A method for applying a planting device for evaluating rice disease resistance according to any one of claims 1 to 9, characterized in that: include: Selecting a pathogen combination for each sub-region, each of the pathogen combinations comprising multiple pathogens; According to the combination of the pathogens in each of the sub-areas, an objective function is established with the maximum sum of the activities of the pathogens as the goal; Solving the objective function to obtain the target temperature and target humidity of the corresponding sub-area; Controlling the liquid spraying device (110) and the temperature regulating device (120) to adjust the humidity and temperature of the sub-area to the target humidity and the target temperature respectively, and controlling the liquid spraying device (110) to spray the pathogen stock solution to form the pathogen combination in the sub-area; After a predetermined period of time, images of the rice to be evaluated are collected, and the disease resistance of the rice to be evaluated is determined after analyzing the images.

Citation Information

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