PPVO1864 Hybrid Corn Breeding via Preliminary Action
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Solution Overview
Problem
Developing a new maize hybrid that combines desirable traits such as high yield, disease resistance, and adaptability to specific growing regions while maintaining uniformity and reducing the complexity of breeding processes.
Innovation Solution
The development of the enhanced waxy maize hybrid PPVO1864, achieved through a modified backcross breeding methodology using the inbred lines (ws)FR1064 and (ws)LH185, which results in a hybrid with improved agronomic traits and adaptability to the east central corn growing region of the United States.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop new maize hybrids, then genetic diversity and adaptability are improved, but the breeding process becomes more complex and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing inbred lines with specific desirable traits (disease resistance, yield potential, adaptability) before the actual hybrid development. The inbred lines are developed and characterized in advance, allowing the hybrid breeding process to focus only on combining pre-validated genetic components, thereby reducing overall breeding complexity and time requirements while maintaining high adaptability to specific growing regions
2Stability of the object's composition
If inbred lines are developed through multiple generations of self-pollination, then genetic uniformity is improved, but the time required for breeding is increased
Solution Approach 1:
The patent applies preliminary action by developing and characterizing inbred lines in advance through multiple generations of self-pollination and selection. These pre-developed inbred lines are then used as parental materials for hybrid production, eliminating the need to perform time-consuming inbreeding operations during the hybrid development phase. This preliminary preparation maintains genetic uniformity in the inbred lines while significantly reducing the overall breeding time required
3Productivity
If hybrid maize is developed for high yield, then productivity is improved, but uniformity of plant characteristics may be compromised
Solution Approach 1:
The patent applies local quality by developing inbred lines with specific localized desirable traits (such as disease resistance in certain regions, yield potential in specific environments) and then combining them in hybrids. Each inbred line is optimized for particular characteristics while maintaining overall uniformity, allowing the hybrid to achieve high yield through the synergistic combination of locally optimized genetic components without compromising plant characteristic uniformity
Data Source
AI summary
This invention provides hybrid maize plant designated PPVO1864. This invention further provides hybrid seed of PPVO1864, a representative sample of which has been deposited under ATCC Accession Number PTA-9367, hybrid plants produced from such seed, and variants, mutants, and trivial modifications to hybrid PPVO1864, as well as methods of using the hybrid and products produced from the hybrid.