Baby cabbage high-quality variety evaluation method and screening method

Abstract

The invention discloses a baby cabbage high-quality variety evaluation method and a baby cabbage high-quality variety screening method, and relates to the technical field of baby cabbage high-quality variety evaluation, and the method comprises baby cabbage sowing and harvesting, baby cabbage data acquisition, baby cabbage data analysis and baby cabbage high-quality evaluation. According to the method, the basic data and content data of baby cabbages of various varieties are analyzed, the content of vitamins, the content of inorganic elements and the content of revistin are analyzed, then the analysis result of the data is obtained, the analysis result of the data is subjected to qualification judgment, and therefore the true situation of the data in the baby cabbages of various varieties is obtained. According to the method, the limitation problem existing in the current baby cabbage high-quality variety data analysis process is solved, all data are independently analyzed, errors caused by addition results are avoided, meanwhile, the reliability and authenticity of data analysis results are guaranteed, and then a reliable basis is provided for subsequent baby cabbage high-quality variety evaluation.

Description

Technical Field

[0001] This application relates to the technical field of evaluation of high-quality varieties of baby Chinese cabbage, and specifically relates to a method for evaluating and screening high-quality varieties of baby Chinese cabbage. Background Art

[0002] With the continuous update of planting techniques, the varieties of baby Chinese cabbage are also constantly being updated. However, a method for selecting high-quality varieties of baby Chinese cabbage still requires deeper analysis.

[0003] The prior art with the publication number CN113514608A discloses a method for evaluating and screening high-quality varieties of baby Chinese cabbage in cool regions, belonging to the technical field of vegetable quality evaluation. Before planting, first pre-plant the baby Chinese cabbage varieties to be evaluated or screened on a small scale. When they grow to the mature stage, measure their plant height Z1, spreading degree Z2, number of leaves Z3, leaf length Z4, leaf width Z5, chlorophyll Z6, vitamin C content Z7, soluble sugar content Z8, soluble protein content Z9, soluble solid content Z10, ball height Z11, transverse diameter Z12, gross weight Z13, and net weight Z14, a total of 14 characteristic parameters. Standardize the characteristic parameters and substitute them into the model F =

[0004] -0.094Z1 + 0.018Z2 + 0.009Z3 - 0.092Z4 - 0.015Z5 + 0.053Z6 + 0.162Z7 - 0.160Z8 + 0.023Z9 + 0.094Z10 + 0.138Z11 + 0.142Z12 + 0.207Z13 + 0.221Z14, calculate the comprehensive evaluation index F, and evaluate and screen the quality of the baby Chinese cabbage varieties through the comprehensive evaluation index F, and make a scientific and objective evaluation on whether the baby Chinese cabbage is suitable for planting before large-scale planting to guide vegetable farmers to select the baby Chinese cabbage varieties to be planted.

[0005] The present invention analyzes based on the basic data and content data of baby Chinese cabbage, where the basic data includes the leaf integrity, volume and weight of baby Chinese cabbage, and the content data includes the content of various vitamins, the content of various inorganic elements, and the content of anthocyanins; the various vitamins include vitamin C, vitamin K, vitamin A, and vitamin B; the various inorganic elements include calcium, potassium, zinc, and iron; these elements are analyzed independently to reduce the error caused by data addition.

[0006] In view of the above solution, the inventors of the present application found that the above technology has at least the following problems: 1. In the current analysis of the quality of baby bok choy varieties, there is a lack of independent analysis of elements such as the content of various vitamins, inorganic elements, and anthocyanin content in baby bok choy; the lack of vitamin C, vitamin K, vitamin A, and vitamin B among the various vitamins; calcium, potassium, zinc, and iron among the various inorganic elements; it is impossible to more accurately understand the actual situation of current baby bok choy, and at the same time, it is impossible to ensure the comprehensiveness and authenticity of the data analysis process of baby bok choy, and thus it is impossible to ensure the reference and accuracy of the analysis results.

[0007] 3. Currently, there is a lack of combined analysis of the analysis results of various aspects of baby bok choy, and it is impossible to truly display the quality of baby bok choy, and thus it is impossible to ensure the reliability of the analysis results of high-quality baby bok choy varieties. Summary of the Invention

[0008] In view of the above technical deficiencies, the purpose of the present application is to provide a method for evaluating high-quality varieties of baby bok choy and a screening method.

[0009] To solve the above technical problems, the present application adopts the following technical solutions: The present application provides a method for evaluating high-quality varieties of baby bok choy and a screening method, including: Step 1. Sowing and harvesting of baby bok choy: Sow different varieties of baby bok choy in the experimental field and harvest when each variety of baby bok choy is mature.

[0010] Step 2. Data collection of baby bok choy: Process and detect each variety of baby bok choy to obtain the basic data and content data of each variety of baby bok choy.

[0011] Step 3. Data analysis of baby bok choy: Based on the basic data and content data of each variety of baby bok choy, analyze and obtain the basic evaluation coefficient, the evaluation coefficient of each vitamin content, the evaluation coefficient of each inorganic element, and the evaluation coefficient of anthocyanin of each variety of baby bok choy, and then judge whether the basic conditions, the content of each vitamin, the content of each inorganic element, and the content of anthocyanin of each variety of baby bok choy are qualified.

[0012] Step 4. High-quality evaluation of baby bok choy: Analyze the high-quality situation of each variety of baby bok choy according to the qualified conditions of the basic conditions, the content of each vitamin, the content of each inorganic element, and the content of anthocyanin of each variety of baby bok choy.

[0013] Preferably, the basic data includes the leaf integrity, volume, and weight of baby bok choy, and the content data includes the content of each vitamin, the content of each inorganic element, and the content of anthocyanin; the vitamins include vitamin C, vitamin K, vitamin A, and vitamin B; the inorganic elements include calcium, potassium, zinc, and iron.

[0014] The beneficial effects of the present application are as follows: 1. A method for evaluating and screening high-quality varieties of baby bok choy provided by the present application analyzes the vitamin content, inorganic element content, and anthocyanin content in the basic data and content data of each variety of baby bok choy, thereby obtaining the analysis results of each data, and making a qualified judgment on the analysis results of each data, so as to obtain the true situation of each data in each variety of baby bok choy, solving the limitation problems existing in the data analysis process of high-quality varieties of baby bok choy at present. All data are analyzed independently, avoiding errors caused by the added results, and at the same time ensuring the reliability and authenticity of the data analysis results, and thus providing a reliable basis for the subsequent evaluation of high-quality varieties of baby bok choy.

[0015] 2. In the present application, the sowing and harvesting processes of baby bok choy are strictly controlled to keep the sowing processes of each variety of baby bok choy consistent, avoiding errors in experimental results caused by inconsistent growth environments of baby bok choy.

[0016] 3. The present application extracts various data of baby bok choy and then analyzes the various data of baby bok choy separately, so as to analyze whether baby bok choy is a qualified product from multiple aspects, and finally comprehensively analyzes whether each variety of baby bok choy is a high-quality variety, solving the limitation problems existing in the analysis process of high-quality varieties of baby bok choy at present. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic flow chart of the implementation steps of the method of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0020] Please refer to Figure 1 As shown, the present application provides a method for evaluating and screening high-quality varieties of baby bok choy, including the following steps: Step 1. Sowing and harvesting of baby bok choy: Sow different varieties of baby bok choy in the experimental field and harvest them when each variety of baby bok choy is mature.

[0021] In a specific embodiment, different varieties of baby Chinese cabbages are sown in the experimental plot, and harvested when each variety of baby Chinese cabbage is mature. The specific sowing and harvesting processes are as follows: Use loose and fertile soil as the experimental plot. After spraying organic fertilizers, plow and level the experimental plot, and evenly scatter the seeds of different varieties of baby Chinese cabbages on the soil surface, then cover a thin layer of soil, and thoroughly water the experimental plot; During the growth process of the baby Chinese cabbages, maintain daily light and moisture, and perform weeding, soil loosening and application of liquid fertilizers according to the set time points; When the leaves of each variety of baby Chinese cabbage grow to the set size, use scissors to cut at the junction of the leaves and the stem of the baby Chinese cabbage.

[0022] It should be noted that the growth environment of each variety of baby Chinese cabbage remains consistent.

[0023] In this application, the sowing and harvesting processes of baby Chinese cabbages are strictly controlled to keep the sowing processes of each variety of baby Chinese cabbages consistent, and avoid errors in experimental results caused by inconsistent growth environments of baby Chinese cabbages.

[0024] Step 2: Data collection of baby Chinese cabbages: Process and detect each variety of baby Chinese cabbages to obtain the basic data and content data of each variety of baby Chinese cabbages.

[0025] In a specific embodiment, the process of processing and detecting each variety of baby Chinese cabbages is as follows: Thoroughly wash with flowing clean water to remove the soil and residual impurities on each variety of baby Chinese cabbages, and send each variety of baby Chinese cabbages to the laboratory for detection to obtain the basic data and content data of each variety of baby Chinese cabbages.

[0026] It should be noted that the laboratory conducts multiple detections on the basic data and content data of baby Chinese cabbages to obtain the final detection results, so as to ensure the accuracy of the detection results.

[0027] In a specific embodiment, the basic data includes the leaf integrity, volume and weight of baby Chinese cabbages, and the content data includes the contents of various vitamins, various inorganic elements and anthocyanin content; The various vitamins include vitamin C, vitamin K, vitamin A, vitamin B; The various inorganic elements include calcium, potassium, zinc and iron.

[0028] This application extracts multiple data of baby Chinese cabbages, and then analyzes the multiple data of baby Chinese cabbages separately, so as to analyze whether baby Chinese cabbages are qualified products from multiple aspects, and finally comprehensively analyze whether each variety of baby Chinese cabbages is a high-quality variety, solving the limitations existing in the analysis process of high-quality varieties of baby Chinese cabbages currently.

[0029] Step 3: Analysis of baby bok choy data: Based on the basic data and content data of each variety of baby bok choy, analyze and obtain the basic evaluation coefficients, vitamin content evaluation coefficients, inorganic element evaluation coefficients, and anthocyanin evaluation coefficients of each variety of baby bok choy, and then determine whether the basic conditions, vitamin contents, inorganic element contents, and anthocyanin contents of each variety of baby bok choy are qualified.

[0030] In a specific embodiment, the process of analyzing and obtaining the basic evaluation coefficients and vitamin content evaluation coefficients of each variety of baby bok choy is as follows: A1. Denote the leaf integrity, volume, and weight of each variety of baby bok choy as Y i , T i , and Z i , where i represents the number corresponding to each variety of baby bok choy, i = 1, 2,......, n, n represents the total number of baby bok choy varieties, and n is a natural integer greater than 2.

[0031] According to the calculation formula obtain the basic evaluation coefficient λ i of each variety of baby bok choy, where Y′, T′, and Z′ respectively represent the reference values of the leaf integrity, volume, and weight of baby bok choy in the database, and ΔY, ΔT, and ΔZ respectively represent the allowable floating values of the leaf integrity, volume, and weight of baby bok choy in the database, and σ1, σ2, and σ3 respectively represent the weight factors corresponding to the leaf integrity, volume, and weight of baby bok choy in the database.

[0032] It should be noted that the leaf integrity is the ratio of the size obtained by subtracting the area of the missing part from the leaf area when the leaf is fully unfolded to the size of the standard leaf area.

[0033] It should be noted that when the volume of the baby bok choy is small and the weight is large, it means that the leaves of the baby bok choy are firm; when the volume of the baby bok choy is large but the weight is small, it means that the leaves of the baby bok choy are not firm or the disease resistance ability is poor and it has become hollow.

[0034] It should be noted that 0 < σ1 ≤ 1, 0 < σ2 ≤ 1, 0 < σ3 ≤ 1.

[0035] It should be noted that the weight factors corresponding to the leaf integrity, volume, and weight of baby bok choy are obtained through factor analysis. First, the information of leaf integrity, volume, and weight is concentrated, and then the variance interpretation rate after rotation is obtained. The weight is obtained by dividing the cumulative variance interpretation rate.

[0036] It should be noted that factor analysis is a well-known technology. It is a multivariate statistical analysis method that starts from studying the internal correlation dependencies of variables and reduces a number of variables with intricate relationships into a few comprehensive factors; information condensation is expressed as calculating the median; the variance interpretation rate is the amount of information extracted by the factors, and the variance interpretation rate = eigenvalue / total number of analysis items; the variance interpretation rate after rotation represents the variance interpretation rate of the factors after performing a varimax rotation.

[0037] A2. Denote the vitamin content of each variety of baby Chinese cabbage as WS ij , where j represents the number corresponding to each vitamin, j = 1, 2,......, m, m represents the total number of vitamins, and m is a natural integer greater than 2.

[0038] According to the calculation formula Obtain the evaluation coefficient β of the vitamin content of each variety of baby Chinese cabbage ij , e represents the natural constant, WS′ j represents the reference value of the vitamin content of baby Chinese cabbage in the database, represents the compensation factor corresponding to the vitamin content of baby Chinese cabbage in the database.

[0039] It should be noted that

[0040] It should be noted that the compensation factor corresponding to the vitamin content of baby Chinese cabbage is a numerical factor that is the error of the vitamin content of baby Chinese cabbage and is multiplied by the uncorrected measurement result.

[0041] In a specific embodiment, the evaluation coefficients of the inorganic elements and anthocyanin evaluation coefficients of each variety of baby Chinese cabbage are analyzed as follows: B1. Denote the inorganic element content of each variety of baby Chinese cabbage as WJ iq , where q represents the number corresponding to each inorganic element, q = 1, 2,......, d, d represents the total number of inorganic elements, and d is a natural integer greater than 2.

[0042] According to the calculation formula Obtain the evaluation coefficient β of the inorganic element content of each variety of baby Chinese cabbage iq , e represents the natural constant, WJ q ′ represents the reference value of the inorganic element content of baby Chinese cabbage in the database, τ q represents the compensation factor corresponding to the inorganic element content of baby Chinese cabbage in the database.

[0043] B2. Denote the anthocyanin content of each variety of baby Chinese cabbage as F i , substitute it into the calculation formula Obtain the anthocyanin evaluation coefficient α of each variety of baby Chinese cabbagei , where F′ represents the reference value of the anthocyanin content of baby bok choy in the database, and υ represents the compensation factor corresponding to the anthocyanin content of baby bok choy in the database.

[0044] It should be noted that 0 < υ < 1, 0 < τ q < 1.

[0045] It should be noted that the compensation factor corresponding to the anthocyanin content of baby bok choy is a numerical factor that is multiplied by the uncorrected measurement result for the error in the anthocyanin content of baby bok choy; the compensation factor corresponding to the content of each inorganic element of baby bok choy is a numerical factor that is multiplied by the uncorrected measurement result for the error in the content of each inorganic element.

[0046] In a specific embodiment, the process of determining whether the basic conditions, the content of each vitamin, the content of each inorganic element, and the anthocyanin content of each variety of baby bok choy are qualified is as follows: C1. Compare the basic evaluation coefficient of each variety of baby bok choy with the threshold value of the basic evaluation coefficient of baby bok choy in the database. When the basic evaluation coefficient of a certain variety of baby bok choy is greater than or equal to the threshold value of the basic evaluation coefficient of baby bok choy in the database, it is determined that the basic condition of this variety of baby bok choy is unqualified; otherwise, it is determined that the basic condition of this variety of baby bok choy is qualified, and thus whether the basic conditions of each variety of baby bok choy are qualified is determined.

[0047] C2. Compare the evaluation coefficient of the content of each vitamin of each variety of baby bok choy with the threshold value of the evaluation coefficient of the content of each vitamin in the database. When the evaluation coefficient of the content of a certain vitamin of a certain variety of baby bok choy is greater than or equal to the threshold value of the evaluation coefficient of the content of this vitamin in the database, it is determined that the content of this vitamin of this variety of baby bok choy is unqualified; otherwise, it is determined that the content of this vitamin of this variety of baby bok choy is qualified, and thus whether the content of each vitamin of each variety of baby bok choy is qualified is determined.

[0048] C3. Compare the evaluation coefficient of the content of each inorganic element of each variety of baby bok choy with the threshold value of the evaluation coefficient of the content of each inorganic element in the database. When the evaluation coefficient of the content of a certain inorganic element of a certain variety of baby bok choy is greater than or equal to the threshold value of the evaluation coefficient of the content of this inorganic element in the database, it is determined that the content of this inorganic element of this variety of baby bok choy is unqualified; otherwise, it is determined that the content of this inorganic element of this variety of baby bok choy is qualified, and thus whether the content of each inorganic element of each variety of baby bok choy is qualified is determined.

[0049] C4. Compare the anthocyanin evaluation coefficient of each variety of baby bok choy with the threshold value of the anthocyanin evaluation coefficient of baby bok choy in the database. When the anthocyanin evaluation coefficient of a certain variety of baby bok choy is greater than or equal to the threshold value of the anthocyanin evaluation coefficient of baby bok choy in the database, it is determined that the anthocyanin of this variety of baby bok choy is unqualified; otherwise, it is determined that the anthocyanin of this variety of baby bok choy is qualified, and thus whether the anthocyanin of each variety of baby bok choy is qualified is determined.

[0050] Step 4. High-quality evaluation of baby bok choy: Analyze the high-quality situation of each variety of baby bok choy based on the basic conditions, vitamin contents, inorganic element contents, and qualified situation of anthocyanin content of each variety of baby bok choy.

[0051] In a specific embodiment, the analysis of the high-quality situation of each variety of baby bok choy is as follows: When the basic conditions, vitamin contents, inorganic element contents, and anthocyanin content of a certain variety of baby bok choy are all qualified, it indicates that this variety of baby bok choy is a high-quality variety; when the basic conditions, a certain vitamin content, a certain inorganic element content, or the anthocyanin content of a certain variety of baby bok choy is unqualified, it indicates that this variety of baby bok choy is a non-high-quality variety.

[0052] A method for evaluating and screening high-quality varieties of baby bok choy provided by this application analyzes the vitamin contents, inorganic element contents, and anthocyanin content in the basic data and content data of each variety of baby bok choy, thereby obtaining the analysis results of each data, and making a qualified judgment on the analysis results of each data, so as to obtain the true situation of each data in each variety of baby bok choy, solving the limitation problem existing in the data analysis process of the current high-quality varieties of baby bok choy. All data are analyzed independently to avoid errors caused by the added results, and at the same time, the reliability and authenticity of the data analysis results are ensured, thereby providing a reliable basis for the subsequent evaluation of high-quality varieties of baby bok choy.

[0053] The above content is only an example and explanation of the concept of this application. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all belong to the protection scope of this application.

Claims

1. A method for evaluating and screening high-quality varieties of baby bok choy, characterized in that, Including: Step 1. Sowing and harvesting of baby bok choy: Sow different varieties of baby bok choy in the experimental plot and harvest them when each variety of baby bok choy is mature; Step 2. Data collection of baby bok choy: Process and detect each variety of baby bok choy to obtain the basic data and content data of each variety of baby bok choy; Step 3. Data analysis of baby bok choy: Based on the basic data and content data of each variety of baby bok choy, analyze and obtain the basic evaluation coefficients, vitamin content evaluation coefficients, inorganic element evaluation coefficients, and anthocyanin evaluation coefficients of each variety of baby bok choy, and then judge whether the basic conditions, vitamin content, inorganic element content, and anthocyanin content of each variety of baby bok choy are qualified; Step 4. High-quality evaluation of baby bok choy: Analyze the high-quality conditions of each variety of baby bok choy according to the qualified conditions of the basic conditions, vitamin content, inorganic element content, and anthocyanin content of each variety of baby bok choy.

2. The evaluation method and screening method for high-quality varieties of baby bok choy according to claim 1, characterized in that, The sowing of different varieties of baby bok choy in the experimental plot and the harvesting when each variety of baby bok choy is mature are as follows: Use loose and fertile soil as the experimental plot. After spraying organic fertilizer, plow and level the experimental plot, evenly scatter the seeds of different varieties of baby bok choy on the soil surface, cover a thin layer of soil, and thoroughly water the experimental plot; During the growth process of baby bok choy, maintain daily light and moisture, and carry out weeding, soil loosening, and application of liquid fertilizer according to the set time points; When the leaves of each variety of baby bok choy grow to the set size, use scissors to cut at the junction of the leaves and the stem of the baby bok choy.

3. The evaluation method and screening method for high-quality varieties of baby bok choy according to claim 1, characterized in that, The processing and detection of each variety of baby bok choy are as follows: Fully wash with flowing water to remove the soil and residual impurities on each variety of baby bok choy, and send each variety of baby bok choy to the laboratory for detection to obtain the basic data and content data of each variety of baby bok choy.

4. The evaluation method and screening method for high-quality varieties of baby cabbages according to claim 3, characterized in that, The basic data includes the leaf integrity, volume, and weight of baby bok choy, and the content data includes the content of each vitamin, each inorganic element, and anthocyanin content; Each vitamin includes vitamin C, vitamin K, vitamin A, and vitamin B; Each inorganic element includes calcium, potassium, zinc, and iron.

5. The evaluation method and screening method for high-quality varieties of baby bok choy according to claim 1, characterized in that, The analysis and obtaining of the basic evaluation coefficients and vitamin content evaluation coefficients of each variety of baby bok choy are as follows: A1. Denote the leaf integrity, volume, and weight of each variety of baby Chinese cabbage as Y i , T i , and Z i , where i represents the corresponding number of each variety of baby Chinese cabbage, i = 1, 2,......, n, n represents the total number of baby Chinese cabbage varieties, and n is a natural integer greater than 2; According to the calculation formula the basic evaluation coefficient λ of each variety of baby Chinese cabbage is obtained i , where Y′, T′, and Z′ respectively represent the reference values of the leaf integrity, volume, and weight of the baby Chinese cabbage in the database, ΔY, ΔT, and ΔZ respectively represent the allowable floating values of the leaf integrity, volume, and weight of the baby Chinese cabbage in the database, and σ1, σ2, and σ3 respectively represent the weight factors corresponding to the leaf integrity, volume, and weight of the baby Chinese cabbage in the database; A2. Record the vitamin content of each variety of baby Chinese cabbage as WS ij , where j represents the number corresponding to each vitamin, j = 1, 2,......, m, m represents the total number of vitamins, and m is a natural integer greater than 2; According to the calculation formula The evaluation coefficient β of the vitamin content of each variety of baby Chinese cabbage is obtained ij , e represents the natural constant, WS′ j represents the reference value of the vitamin content of baby Chinese cabbage in the database, represents the compensation factor corresponding to the vitamin content of baby Chinese cabbage in the database.

6. The evaluation method and screening method for high-quality varieties of baby bok choy according to claim 5, characterized in that, The analysis and obtaining of the inorganic element evaluation coefficients and anthocyanin evaluation coefficients of each variety of baby bok choy are as follows: B1. Record the inorganic element contents of each variety of baby Chinese cabbage as WJ iq , where q represents the serial number corresponding to each inorganic element, q = 1, 2,......, d, d represents the total number of inorganic elements, and d is a natural integer greater than 2; According to the calculation formula obtain the evaluation coefficient β of the inorganic element content of each variety of baby Chinese cabbage iq , e represents the natural constant, WJ′ q represents the reference value of the inorganic element content of baby Chinese cabbage in the database, τ q represents the compensation factor corresponding to the inorganic element content of baby Chinese cabbage in the database; B2. Record the anthocyanin content of each variety of baby Chinese cabbage as F i , and substitute it into the calculation formula to obtain the anthocyanin evaluation coefficient α of each variety of baby Chinese cabbage i , where F′ represents the reference value of the anthocyanin content of baby Chinese cabbage in the database, and υ represents the compensation factor corresponding to the anthocyanin content of baby Chinese cabbage in the database.

7. The evaluation method and screening method for high-quality varieties of baby bok choy according to claim 6, characterized in that The judgment of whether the basic conditions, vitamin content, inorganic element content, and anthocyanin content of each variety of baby bok choy are qualified is as follows: C1. Compare the basic evaluation coefficient of each variety of baby bok choy with the threshold of the basic evaluation coefficient of baby bok choy in the database. When the basic evaluation coefficient of a certain variety of baby bok choy is greater than or equal to the threshold of the basic evaluation coefficient of baby bok choy in the database, judge that the basic condition of this variety of baby bok choy is unqualified, otherwise judge that the basic condition of this variety of baby bok choy is qualified, and thus judge whether the basic conditions of each variety of baby bok choy are qualified; C2. Compare the evaluation coefficients of the vitamin contents of each variety of baby Chinese cabbage with the threshold values of the evaluation coefficients of the vitamin contents in the database. When the evaluation coefficient of a certain vitamin content of a certain variety of baby Chinese cabbage is greater than or equal to the threshold value of the evaluation coefficient of this vitamin content in the database, it is judged that the vitamin content of this variety of baby Chinese cabbage is unqualified; otherwise, it is judged that the vitamin content of this variety of baby Chinese cabbage is qualified, and thus judge whether the vitamin contents of each variety of baby Chinese cabbage are qualified; C3. Compare the evaluation coefficients of the inorganic element contents of each variety of baby Chinese cabbage with the threshold values of the evaluation coefficients of the inorganic element contents in the database. When the evaluation coefficient of a certain inorganic element content of a certain variety of baby Chinese cabbage is greater than or equal to the threshold value of the evaluation coefficient of this inorganic element content in the database, it is judged that the inorganic element content of this variety of baby Chinese cabbage is unqualified; otherwise, it is judged that the inorganic element content of this variety of baby Chinese cabbage is qualified, and thus judge whether the inorganic element contents of each variety of baby Chinese cabbage are qualified; C4. Compare the anthocyanin evaluation coefficient of each variety of baby Chinese cabbage with the anthocyanin evaluation coefficient threshold of baby Chinese cabbage in the database. When the anthocyanin evaluation coefficient of a certain variety of baby Chinese cabbage is greater than or equal to the anthocyanin evaluation coefficient threshold of baby Chinese cabbage in the database, it is judged that the anthocyanin of this variety of baby Chinese cabbage is unqualified; otherwise, it is judged that the anthocyanin of this variety of baby Chinese cabbage is qualified, and thus judge whether the anthocyanins of each variety of baby Chinese cabbage are qualified.

8. The evaluation method and screening method for high-quality varieties of baby bok choy according to claim 7, characterized in that, The analysis of the quality of each variety of baby Chinese cabbage is as follows: When the basic conditions, the vitamin contents, the inorganic element contents, and the anthocyanin contents of a certain variety of baby Chinese cabbage are all qualified, it indicates that this variety of baby Chinese cabbage is a high-quality variety; when the basic conditions, a certain vitamin content, a certain inorganic element content, or the anthocyanin content of a certain variety of baby Chinese cabbage is unqualified, it indicates that this variety of baby Chinese cabbage is a non-high-quality variety.

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