CH010372 Hybrid Corn Variety Breeding for Uniform Multi-Trait Seeds
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Solution Overview
Problem
Existing corn breeding techniques struggle to combine multiple desirable traits such as yield, disease resistance, and uniformity in a single hybrid variety, necessitating the development of stable inbred plants with specific characteristics.
Innovation Solution
The development of the hybrid corn variety CH010372, which incorporates genetic modifications and cytoplasmic factors for traits like male sterility, herbicide resistance, and disease resistance, along with methods for controlled cross-pollination and tissue culture regeneration to ensure uniformity and desired characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding techniques are used to combine multiple desirable traits, then the complexity of the breeding program increases, but the ability to achieve uniformity and stability in the final hybrid variety deteriorates
Solution Approach 1:
The breeding program is segmented into distinct phases: developing homozygous inbred parent lines with specific traits, then crossing them to produce uniform hybrid progeny. This segmentation allows each parent line to be optimized independently for desired traits while ensuring the F1 hybrid population achieves uniformity through heterosis.
Solution Approach 2:
Homozygous inbred parent plants are developed through multiple generations of self-pollination and selection before the actual hybrid cross is made. This preliminary action ensures that both parents are genetically stable and uniform, which guarantees uniformity in the resulting hybrid population when crossed.
2Productivity
If extensive breeding programs are conducted to develop superior inbred parental plants, then the productivity of trait development improves, but the device complexity of the breeding program increases
Solution Approach 1:
The breeding program uses universal methods applicable to multiple trait combinations: self-pollination for homozygosity, controlled cross-pollination for hybridization, and phenotypic/genotypic selection. These multi-functional approaches can be applied regardless of which specific traits are being combined, simplifying the overall program structure.
Solution Approach 2:
The breeding program leverages the plant's natural self-pollination capability to develop homozygous inbred lines without requiring complex external intervention. This self-service mechanism simplifies the breeding process while maintaining high productivity in developing stable parental lines.
3Ease of operation
If natural pollination is used in corn, then the ease of operation is improved, but the manufacturing precision of hybrid seed production deteriorates due to inability to control cross-pollination
Solution Approach 1:
Physical barriers such as bags or enclosures are used as intermediaries to control pollen flow during cross-pollination. These barriers prevent unwanted pollen contamination while allowing the natural wind pollination mechanism to operate, thus maintaining ease of operation while achieving manufacturing precision in hybrid seed production.
Solution Approach 2:
The female parent is prepared in advance by removing its tassel or applying barriers to prevent self-pollination before the controlled cross-pollination event. This preliminary action ensures that only the desired pollen from the male parent can fertilize the female parent, achieving precision in hybrid seed production while using natural pollination processes.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010372. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010372, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010372 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 CH010372.