Hybrid Corn CH213919 Breeding via Segmentation and Preliminary Action
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Solution Overview
Problem
Corn breeding techniques face challenges in developing uniform hybrid varieties with desirable traits such as high yield, disease resistance, and uniform germination due to genetic non-uniformity and unpredictability in cross-pollination, requiring the development of stable inbred plants and specific breeding methods.
Innovation Solution
The development of the hybrid corn variety CH213919, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, utilizing cytoplasmic-male sterility and genetic transformation techniques to introduce desired traits, and tissue culture methods for regenerating plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop corn hybrids, then genetic diversity and trait combination are improved, but genetic uniformity and predictability deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing homozygous inbred lines through self-pollination to ensure genetic uniformity, then crossing these standardized lines to introduce controlled genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
Inbred parental lines are developed and standardized through multiple generations of self-pollination and selection before the actual hybrid cross. This preliminary action ensures that the genetic composition of parents is stable and uniform, which then enables predictable and uniform hybrid offspring when crossing occurs.
2Stability of the object's composition
If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but genetic diversity deteriorates
Solution Approach 1:
Self-pollination and selection are performed as a preliminary action to develop homozygous inbred lines with stable, uniform genetics. Once these standardized parental lines are established, they serve as the foundation for subsequent cross-pollination events that will generate diverse yet uniform hybrids.
Solution Approach 2:
The inbred parental lines act as intermediaries between the self-pollination phase (which creates uniformity) and the cross-pollination phase (which creates diversity). These standardized intermediaries ensure that when crossing occurs, the resulting hybrids have predictable and uniform performance.
3Adaptability or versatility
If multiple breeding methods are used to combine desirable traits, then trait variety is improved, but breeding complexity increases
Solution Approach 1:
The breeding program is segmented into specialized teams or programs, each focused on developing inbred lines with specific desirable traits (e.g., one program for disease resistance, another for yield). This segmentation allows complex trait combination to be managed through coordinated simplicity rather than integrated complexity.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH213919. The invention thus relates to the plants, seeds and tissue cultures of the variety CH213919, and to methods for producing a corn plant produced by crossing a corn plant of variety CH213919 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 CH213919.