Hard Red Winter Wheat Breeding for Yield and Trait Integration
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Solution Overview
Problem
Existing wheat cultivars lack improved combinations of desirable traits such as higher seed yield, disease and insect resistance, drought tolerance, and better agronomic quality, which are essential for enhancing productivity and adaptability in wheat breeding programs.
Innovation Solution
Development of the wheat cultivar 01102443, which is a hard red winter type common wheat bred for winter wheat growing regions, incorporating traits like improved seed yield, disease resistance, and better agronomic qualities through a combination of traditional breeding and genetic transformation techniques, including the introduction of transgenic genes for herbicide resistance, disease resistance, and improved nutritional quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional breeding techniques are used to combine desirable traits, then seed yield and agronomic quality are improved, but the process requires numerous steps and generations, increasing time and complexity
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing parental germplasm with specific desirable traits (disease resistance, yield potential, agronomic quality) before initiating the breeding program. This preliminary characterization of parents 1 and 2, including their genetic background and trait profiles, allows the breeding process to proceed more efficiently by avoiding later-generation selection for these fundamental traits, thus reducing overall breeding time while maintaining productivity improvements.
2Adaptability or versatility
If multiple traits are combined in a single variety, then adaptability and productivity are improved, but the breeding program complexity and difficulty of selection increase
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases: Phase 1 involves crossing and F1 generation evaluation, Phase 2 involves F2 and F3 generation selection for specific traits, and Phase 3 involves advanced generation testing. Each phase focuses on specific trait combinations, allowing the complex task of combining multiple traits (disease resistance, yield, adaptability) to be managed through systematic segmentation of the breeding process rather than attempting to select all traits simultaneously.
Solution Approach 2:
The patent applies local quality by selecting for different trait combinations in different geographic locations and environmental conditions. The cultivar is tested and selected for specific local adaptations while maintaining core desirable traits. This allows the variety to exhibit local quality characteristics suited to specific growing regions while maintaining overall adaptability across multiple environments, managing the complexity of multi-trait selection through spatial differentiation.
3Reliability
If parental germplasm with specific traits is selected, then the desired trait combination is achieved, but the selection criteria and germplasm evaluation require extensive analysis and characterization
Solution Approach 1:
The patent applies feedback by implementing systematic evaluation and selection criteria at multiple generations that provide feedback on trait expression. Disease resistance, yield potential, and agronomic quality are assessed at each breeding stage, with selected plants advancing to the next generation based on meeting predetermined thresholds. This feedback mechanism ensures reliable disease resistance while managing evaluation difficulty through standardized, repeatable assessment protocols rather than ad hoc selection.
Data Source
AI summary
The invention relates to the wheat cultivar designated 01102443. Provided by the invention are the seeds, plants and derivatives of the wheat cultivar 01102443. Also provided by the invention are tissue cultures of the wheat cultivar 01102443 and the plants regenerated therefrom. Still further provided by the invention are methods for producing wheat plants by crossing the wheat cultivar 01102443 with itself or another wheat cultivar and plants produced by such methods.