Hybrid Corn X21590 Yield Development via Inbred Selection
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Solution Overview
Problem
The development of new hybrid corn varieties is a slow and costly process that requires expertise, and existing hybrid corn varieties lose commercial competitiveness over time, necessitating the creation of novel varieties with improved characteristics to enhance yield production and provide flexibility against insects, weeds, and diseases.
Innovation Solution
The development of a new yellow dent hybrid corn variety, X21590, produced from a cross of inbred varieties SLD04 and XHD02LY, with specific physiological and morphological characteristics, and the use of treated seeds to enhance resistance to adverse conditions, along with processes for producing novel inbred and hybrid plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hybrid corn varieties are developed through traditional breeding processes, then yield and quality are improved, but the development time and cost increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing specific inbred lines (SLD04 and XHD02LY) with desired traits before hybridization. The inbred parents were developed through multiple generations of selective breeding with documented characteristics for yield, stress tolerance, and adaptability, allowing the F1 hybrid to inherit these pre-optimized traits and achieve improved productivity without extending the overall development timeline
2Reliability
If existing hybrid corn varieties are used over time, then established performance is maintained, but commercial competitiveness is lost
Solution Approach 1:
The patent applies parameter changes by creating a new hybrid variety (X21590) with modified genetic parameters compared to existing varieties. The cross between inbred lines SLD04 and XHD02LY produces an F1 hybrid with novel trait combinations including improved yield potential, enhanced stress tolerance, and better adaptability to different production environments, thereby restoring commercial competitiveness while maintaining reliable performance through controlled breeding
3Reliability
If hybrid seed production eliminates pollen from female parent, then self-pollination is prevented, but the process complexity increases
Solution Approach 1:
The patent applies self-service by utilizing the natural self-sterility characteristics of the female parent inbred line (XHD02LY), which inherently produces non-functional or absent pollen. This biological self-service mechanism automatically prevents self-pollination without requiring external intervention such as manual emasculation or chemical treatments, thereby maintaining hybrid seed purity while simplifying the seed production process
Data Source
AI summary
The invention provides seed and plants of the hybrid corn variety designated X21590. The invention thus relates to the plants, seeds and tissue cultures of the variety X21590, and to methods for producing a corn plant produced by crossing a corn plant of variety X21590 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety X21590.