Inbred Corn Line D046399 Yield Stability Breeding
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Solution Overview
Problem
Existing corn breeding techniques face challenges in developing new inbred corn lines that maintain commercial competitiveness over time, as existing inbred parent lines lose vigor and require costly and expertise-intensive processes to produce hybrid corn varieties with improved yield and trait stability.
Innovation Solution
The development of a new inbred corn line, D046399, which offers increased grain yield and enhanced resistance to stress conditions, along with methods for producing and treating seeds to improve their hardiness, and the use of breeding techniques such as backcrossing, haploid breeding, and mutation breeding to introduce desired traits into the corn plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional inbreeding techniques are used to develop new inbred corn lines, then existing inbred parent lines can be maintained, but they lose vigor over time and require costly and expertise-intensive processes to produce hybrid corn varieties
Solution Approach 1:
The patent applies parameter changes by modifying breeding parameters through multiple breeding methods (backcrossing, haploid breeding, mutation breeding) to develop inbred line D046399 with improved yield stability and vigor, resolving the degradation issue of traditional inbreeding
2Ease of manufacture
If existing inbred parent lines are used to produce hybrid corn varieties, then commercial competitiveness can be maintained, but the process becomes costly and expertise-intensive
Solution Approach 1:
The patent uses copying by creating true-to-type inbred line D046399 through multiple breeding methods that replicate desired traits consistently, enabling reliable hybrid production with improved yield while simplifying the breeding process
3Adaptability or versatility
If inbred corn lines are developed through traditional methods, then new inbred lines can be created, but vigor decreases and additional inbreeding merely serves to increase seed of the developed inbred
Solution Approach 1:
The patent applies preliminary action by performing multiple breeding operations (backcrossing, haploid breeding, mutation breeding) in sequence before final hybrid production, building up vigor and adaptability in inbred line D046399 before it is used for commercial hybrid corn production
Data Source
AI summary
An inbred corn line, designated D046399, the plants and seeds of the inbred corn line D046399, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line D046399 with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line D046399 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 D046399, to methods for producing other inbred corn lines derived from inbred corn line D046399 and to the inbred corn lines derived by the use of those methods.