Hybrid Corn CH730660 Breeding Segmentation
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Solution Overview
Problem
Current 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 in cross-pollinated plants, which affects performance predictability.
Innovation Solution
The development of the hybrid corn variety CH730660, which incorporates a cytoplasmic or nuclear factor for male sterility and specific genetic loci conferring traits like herbicide resistance, insect resistance, and disease resistance, along with 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 performance predictability deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct phases: developing homozygous inbred lines through self-pollination, then crossing these standardized lines to produce uniform hybrids. This segmentation allows genetic diversity to be captured in the inbred development phase while ensuring uniformity in the final hybrid production phase.
Solution Approach 2:
The patent applies preliminary action by first developing and stabilizing homozygous inbred parent lines through multiple generations of self-pollination and selection before proceeding to hybrid crossing. This preliminary standardization of parental genetics ensures that the resulting hybrids exhibit uniform performance characteristics.
2Stability of the object's composition
If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but breeding efficiency and trait combination capability deteriorate
Solution Approach 1:
The patent merges two pollination methods: self-pollination is used to develop uniform inbred parent lines, while cross-pollination is used to produce the final hybrid variety. This combination allows the breeding program to achieve both genetic uniformity (through selfing) and high productivity/trait combination (through crossing).
Solution Approach 2:
The patent employs dynamic breeding strategies where the pollination method changes based on the breeding stage: self-pollination dynamics dominate during inbred line development to achieve uniformity, while cross-pollination dynamics take over during hybrid production to maximize productivity and trait combination.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH730660. The invention thus relates to the plants, seeds and tissue cultures of the variety CH730660, and to methods for producing a corn plant produced by crossing a corn plant of variety CH730660 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 CH730660.