Efficient evaluation method of sugarcane hybrid combination

Abstract

The application discloses a high-efficiency evaluation method of sugarcane hybrid combination, which comprises the following steps: the number of each sugarcane hybrid combination seedling; the field planting specification and method of the sugarcane seedling; the collection and arrangement of field test data; the grading evaluation of the sugarcane hybrid combination. The evaluation method of the sugarcane hybrid combination can effectively improve the evaluation efficiency of the hybrid combination and the breeding efficiency of the new sugarcane variety.

Description

Technical Field

[0001] This invention belongs to the field of sugarcane hybrid combination evaluation technology, and in particular relates to an efficient evaluation method for sugarcane hybrid combinations. Background Technology

[0002] Sugarcane (Saccharum ssp.) is my country's most important sugar crop and one of the world's most important energy plants. The development of sugarcane science and technology has become a new driving force for the sugarcane industry's development; however, the practicality and scalability of science and technology determine their actual application. Sugarcane hybridization breeding and germplasm innovation, primarily involving the selection and evaluation of basic hybrid combinations, has seen widespread application in sugarcane hybridization, but its efficiency is low and the evaluation results are generally poor. Therefore, the evaluation of hybrid combinations has not yet reached its full potential. An efficient evaluation method for sugarcane hybrid combinations is urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide an efficient evaluation method for sugarcane hybrid combinations to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this invention provides a highly efficient evaluation method for sugarcane hybrid combinations, comprising the following steps: Obtain sugarcane hybrid combinations and cultivate seedlings from these hybrid combinations; Based on the cultivated seedlings, 90 seedlings were selected for field trials for each hybrid combination; Data was collected and processed based on the sugarcane seedling experiment described above; The hybridization combination data are used to perform combination grading and evaluation.

[0005] Optionally, during the process of obtaining the hybrid combination, the hybrid combination used in production is used to cultivate seedlings after obtaining the combination.

[0006] Optionally, the field trial process based on the cultivated seedlings includes: selecting 90 seedlings for each combination for planting, with each combination divided into 3 replicates, each replicate planted with 30 seedlings, and a row spacing of 0.3 meters and a plant spacing of 0.2 meters.

[0007] Optionally, the process of data collection and processing based on the sugarcane seedling experiment includes: investigating and grading traits such as growth vigor, leaf diseases, smut, top rot, and hollow core, which can be divided into four levels: excellent, good, medium, and poor. Gravity traits are expressed numerically.

[0008] Optionally, the combinations are graded based on the results of the field trial survey, and each combination is assigned a selection rate according to the grading results.

[0009] The technical effects of this invention are as follows: (1) The present invention provides an efficient evaluation method for constructing sugarcane hybrid combinations, and the evaluation results can guide the breeding of new sugarcane varieties.

[0010] (2) The present invention provides an efficient evaluation method for constructing sugarcane hybrid combinations, which can more accurately and efficiently evaluate hybrid combinations and improve the breeding efficiency of new sugarcane varieties. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a flowchart of a method for evaluating the high efficiency of sugarcane hybrid combinations in an embodiment of the present invention. Detailed Implementation

[0012] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0013] Example 1 like Figure 1 As shown in the figure, this embodiment provides a highly efficient evaluation method for sugarcane hybrid combinations, including the following steps: 4. The combinations are graded based on the results of the field trial survey.

[0014] (1) Creation of hybrid combinations: hybrid combinations used in production, and seedlings are cultivated after obtaining the combinations.

[0015] (2) Field trial of seedlings: Sow the hybrid combinations in step (1), select 90 seedlings for each combination, divide each combination into 3 replicates, plant 30 seedlings in each replicate, plant row spacing of 0.3 meters and plant spacing of 0.2 meters.

[0016] (3) Field data survey and grading: Data from the field experiment in step (2) is collected, mainly focusing on the growth vigor, leaf diseases, smut, shoot rot, and hollow heart, and is graded into four levels: excellent, good, medium, and poor. The grading traits are expressed numerically.

[0017] (4) Combination evaluation: Analyze and organize the survey data in step (3), grade the hybrid combinations, and assign a selection rate after grading the evaluation.

[0018] Example 2 This embodiment provides another specific implementation of a highly efficient evaluation method for sugarcane hybrid combinations, including: (1) Select 12 hybrid combinations and sow 90 seedlings for each hybrid combination.

[0019] (2) The 12 hybrid combinations in step (1) were planted in the field. Each combination was divided into 3 replicates, and 30 plants were planted in each replicate. The row spacing was 0.3 meters and the plant spacing was 0.2 meters.

[0020] (3) Conduct a phenotypic survey on the 12 hybrid combinations in step (2). After surveying 10 values ​​of the hammer index, take the average value. Indicators such as bud heart, smut, shoot rot and vigor are investigated in a graded manner: Grade 1 (excellent), Grade 2 (good), Grade 3 (medium), and Grade 4 (poor).

[0021] (4) Average the grading indicators in step (3) and combine them with the hammer index for combined grading. Combined grading can guide the selection of hybrid nurseries. The selection rate of level 1 hybrid combinations is about 80%, level 2 hybrid combinations are about 50%, level 3 hybrid combinations are about 10%, and level 4 hybrid combinations are 0%, which can be eliminated. The selection rate during the selection process can be adjusted appropriately according to the actual situation.

[0022] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A highly efficient evaluation method for sugarcane hybrid combinations, characterized in that, Includes the following steps: Obtain sugarcane hybrid combinations and cultivate seedlings from these hybrid combinations; Based on the cultivated seedlings, 90 seedlings were selected for field trials for each hybrid combination; Data was collected and processed based on the sugarcane seedling experiment described above; The hybridization combination data are used to perform combination grading evaluation.

2. The evaluation method for sugarcane hybrid combinations according to claim 1, characterized in that, Ninety seedlings were selected from each hybrid combination for field planting.

3. The evaluation method for sugarcane hybrid combinations according to claim 1, characterized in that, During the field trial of the seedlings, each hybrid group was planted in 3 replicates with a row spacing of 0.3 meters and a plant spacing of 0.2 meters.

4. The evaluation method for sugarcane hybrid combinations according to claim 1, characterized in that, Field data collection was conducted on sugarcane seedlings, mainly focusing on the investigation, grading, and sorting of growth rate, vigor, leaf diseases, smut, top rot, and hollow core.

5. The evaluation method for sugarcane hybrid combinations according to claim 1, characterized in that, Based on the aforementioned field survey data, a comprehensive grading evaluation of the combinations was conducted. According to the grading of the combinations, corresponding selection rates were assigned to the combinations: 80% for level 1 combinations, 50% for level 2 combinations, 10% for level 3 combinations, and 0% for level 4 combinations.

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