Hybrid Corn CH552985 Breeding Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current corn breeding techniques face challenges in developing uniform hybrid plants with desirable traits such as high yield, disease resistance, and uniformity, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the hybrid corn variety CH552985, which incorporates cytoplasmic or nuclear factors for male sterility and desired traits like herbicide resistance, insect resistance, and disease resistance, using backcrossing and genetic transformation techniques to introduce specific genetic loci, ensuring uniformity and stability across progeny.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional corn breeding techniques are used to develop hybrid plants, then various desirable traits can be combined, but genetic non-uniformity results in unpredictable performance
Solution Approach 1:
The breeding program is segmented into distinct phases: developing homozygous inbred parental lines through repeated self-pollination, then crossing these standardized parents to produce uniform F1 hybrid progeny. This segmentation ensures genetic uniformity within each phase while allowing trait combination across phases.
Solution Approach 2:
The patent changes the genetic uniformity parameter by enforcing homozygosity in parental lines through repeated selfing generations, then maintaining heterozygosity in F1 hybrids through controlled crossing. This parameter control ensures predictable performance while combining multiple desirable traits.
2Stability of the object's composition
If self-pollination is used to create homozygous inbred plants, then uniform true breeding progeny are produced, but loss of genetic diversity occurs
Solution Approach 1:
The breeding process is divided into two segments: first, creating homozygous inbred lines through self-pollination to achieve genetic uniformity; second, crossing different inbred lines to restore genetic diversity in the F1 hybrid generation. Each segment serves a specific purpose in the overall breeding objective.
Solution Approach 2:
Instead of maintaining genetic diversity through continuous outcrossing, the patent inverts the approach by first creating uniform homozygous lines through selfing, then combining them through controlled crossing to achieve both uniformity and diversity in the final hybrid product.
3Adaptability or versatility
If cross-pollination is used to create hybrid plants, then genetic diversity is maintained, but non-uniformity makes performance unpredictable
Solution Approach 1:
The patent controls the cross-pollination process by using homozygous inbred parental lines with known genetic compositions. This changes the outcome parameter from variable genetic diversity to predictable heterozygosity in F1 hybrids, ensuring both genetic diversity and uniformity simultaneously.
Solution Approach 2:
Before performing cross-pollination to create hybrids, the patent preliminarily establishes homozygous inbred parental lines through repeated self-pollination and selection. This preliminary action ensures that the subsequent cross-pollination produces uniform F1 hybrids with predictable performance.
4Adaptability or versatility
If multiple breeding generations are performed to develop superior inbred plants, then desirable traits are combined, but time to develop commercial hybrids increases
Solution Approach 1:
The patent performs preliminary development of homozygous inbred parental lines in advance, selecting for multiple desirable traits during the selfing generations. Once these standardized parents are established, the F1 hybrid production becomes a straightforward crossing operation, significantly reducing the time to develop commercial hybrids.
Solution Approach 2:
The breeding program is segmented into long-term parental line development and short-term hybrid production phases. The time-consuming trait combination occurs during parental line development, while hybrid production becomes a rapid process using the pre-developed uniform parents.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH552985. The invention thus relates to the plants, seeds and tissue cultures of the variety CH552985, and to methods for producing a corn plant produced by crossing a corn plant of variety CH552985 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 CH552985.