Wheat Breeding Method Using Segmented Selection and Quantitative Parameters
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Solution Overview
Problem
Current wheat breeding technologies face low efficiency and poor outcomes due to reliance on simple hybridization without unified selection indexes, resulting in few high-quality, high-yield varieties that fail to meet market diversification needs.
Innovation Solution
An environmental-friendly and efficient breeding method is introduced, which involves screening breeding materials based on specific traits such as super strong gluten, high yield, disease resistance, and water efficiency, followed by hybridization and selfing to select high-yield and high-quality wheat cultivars with defined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple hybridization method is used, then breeding process is simple, but breeding efficiency is low and selection precision is poor
Solution Approach 1:
The breeding process is divided into distinct stages: parent selection, hybridization, multi-generation selfing (F1-F5), and selection. Each stage has specific selection indexes and criteria, transforming the simple hybridization into a segmented, systematic process that improves efficiency while maintaining manageability.
Solution Approach 2:
The patent introduces specific parameter thresholds for selection at each generation (e.g., sedimentation value ≥40ml, wet gluten content ≥31%, protein content ≥14.0%). These quantitative parameters transform subjective breeder experience into objective, measurable criteria, significantly improving selection precision and breeding efficiency.
2Ease of operation
If simple hybridization without unified selection indexes is used, then breeding operation is easy, but manufacturing precision of variety traits is poor
Solution Approach 1:
The patent establishes unified selection indexes with specific parameter thresholds (sedimentation value, wet gluten content, protein content, stability time, etc.) that must be met at each generation. These parameters ensure precise control over variety traits while providing clear, operational guidelines for breeders.
Solution Approach 2:
The multi-generation selfing process with iterative selection creates a feedback mechanism where each generation is evaluated against the selection indexes, and only those meeting the criteria proceed to the next generation. This feedback loop ensures progressive improvement and precise control of variety traits.
3Device complexity
If experience-based selection is used, then breeding process is simple, but measurement precision of selection criteria is low
Solution Approach 1:
The patent replaces experience-based selection with quantitative measurement criteria (sedimentation value in ml, wet gluten content as percentage, protein content as percentage, stability time in minutes). These precise measurements eliminate subjectivity and significantly improve selection criterion precision.
Solution Approach 2:
The patent replaces the subjective, experience-based selection system with an objective, measurement-based system using laboratory instruments (sedimentation tester, farinograph, protein analyzer). This substitution transforms qualitative breeder judgment into quantitative, reproducible measurements.
Data Source
AI summary
The present disclosure relates to the technical field of breeding, in particular to an environmental-friendly and efficient breeding method of high-yield and high-quality wheat cultivars. In the present disclosure, the breeding method can improve a breeding efficiency of excellent new cultivars, further realize large-scale production, and further increase a planting area of the excellent cultivars. In addition, the breeding method can increase the number of products for the new cultivars, further increase a diversity of early-generation materials, and further increase a diversity of hybrid samples through the innovation of hybridization and breeding methods. The environmental-friendly and efficient breeding method of high-yield and high-quality wheat cultivars can increase a richness of excellent characteristics of the new cultivars through high-generation materials, hybridization, and off-site identification, thereby further improving an effect of breeding.