Hybrid Corn CH985672 Breeding Segmentation
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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 CH985672, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, using cytoplasmic-male sterility and backcrossing 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 hybrid corn varieties, 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:
Homozygous inbred parent lines are developed and standardized through multiple generations of self-pollination before the hybrid crossing step. This preliminary action ensures that the parental lines have stable, uniform genetics, which then enables predictable and uniform hybrid performance when crossed.
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 is used as a preliminary action to develop homozygous inbred lines with uniform genetics. This uniform genetic base is then used as the foundation for hybrid crossing, where controlled genetic diversity is introduced through cross-pollination between different inbred lines.
Solution Approach 2:
Homozygous inbred lines serve as an intermediary between the need for genetic uniformity (achieved through self-pollination) and the need for genetic diversity (achieved through cross-pollination). These inbred lines capture and stabilize desired traits while maintaining uniformity, then serve as standardized parents for generating diverse yet predictable hybrids.
3Adaptability or versatility
If multiple breeding methods are used to combine desirable traits, then trait combination is improved, but breeding complexity increases
Solution Approach 1:
Multiple breeding methods (self-pollination for inbreeding, cross-pollination for hybridization, and selection) are merged into a unified hybrid breeding program. These methods are coordinated systematically: self-pollination develops uniform parent lines, cross-pollination combines traits from different parents, and selection identifies superior hybrids. The merging of these methods achieves comprehensive trait combination while managing complexity through systematic coordination.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH985672. The invention thus relates to the plants, seeds and tissue cultures of the variety CH985672, and to methods for producing a corn plant produced by crossing a corn plant of variety CH985672 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 CH985672.