Inbred Corn Line LEP20 Yield and Stalk Strength
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Solution Overview
Problem
Current corn breeding methods are slow and costly, requiring expertise and numerous steps to develop new inbred and hybrid corn varieties, with existing inbred parent lines losing commercial competitiveness over time, necessitating the development of improved germplasm.
Innovation Solution
The introduction of a new inbred corn line, LEP20, which offers improved grain yield, test weight, and stalk strength, along with methods for producing and utilizing LEP20-derived corn plants, including self-pollination, sib-pollination, and tissue culture regeneration, to enhance hybrid performance and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional corn breeding methods are used to develop new inbred and hybrid varieties, then genetic improvement can be achieved, but the process becomes slow and costly
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a ready supply of improved inbred parent lines with desirable traits (yield, quality, adaptability) before they are needed for hybrid production. This allows breeders to immediately create new hybrids without lengthy breeding cycles, as the parental lines are pre-developed and tested for superior performance
2Reliability
If traditional corn breeding methods are used to develop new inbred and hybrid varieties, then genetic improvement can be achieved, but the cost increases
Solution Approach 1:
The patent applies universality by creating inbred parent lines that possess multiple desirable traits simultaneously (high yield, excellent quality, broad adaptability). These multi-functional parental lines can be used in various hybrid combinations and production systems, reducing the need to develop separate lines for different purposes and thereby lowering overall breeding costs
3Duration of action of stationary object
If existing inbred parent lines are used over time, then production continuity is maintained, but commercial competitiveness is lost
Solution Approach 1:
The patent applies dynamics by implementing an ongoing process of inbred line development and replacement. Rather than using static, long-lived parental lines, the system continuously introduces new inbred lines with improved traits while phasing out older ones. This dynamic approach ensures that hybrid production maintains commercial competitiveness through regular genetic improvement while preserving production continuity through systematic line transitions
Data Source
AI summary
An inbred corn line, designated LEP20, the plants and seeds of the inbred corn line LEP20, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line LEP20 with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line LEP20 with another corn line or plant and to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic corn plants produced by that method. This invention also relates to inbred corn lines derived from inbred corn line LEP20, to methods for producing other inbred corn lines derived from inbred corn line LEP20 and to the inbred corn lines derived by the use of those methods.