Inbred Corn Line KL19 Hybrid Stability and Yield
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for stable, high-yielding corn hybrids that are agronomically sound to maximize ear or kernel production, addressing the challenge of developing superior parental lines for corn breeding.
Innovation Solution
The development of a novel inbred corn line designated KL19, which includes seeds, plants, and their physiological and morphological characteristics, along with methods for producing and modifying these lines through mutagenesis, tissue culture, and transgenic techniques to introduce desired traits such as herbicide resistance, disease resistance, and improved nutritional quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional corn breeding methods are used, then existing corn varieties can be maintained, but high-yielding stable hybrids with superior agronomic traits cannot be developed
Solution Approach 1:
The patent applies parameter changes by systematically modifying genetic parameters through mutagenesis (chemical and radiation-induced) to create novel alleles and combinations that improve both yield and stability. The inbred line KL19 was developed through multiple cycles of self-pollination and selection, changing genetic parameters to achieve superior performance in kernel production while maintaining stability across environments.
Solution Approach 2:
The patent employs composite materials principle by combining multiple genetic components through backcrossing and hybridization. The inbred line integrates desirable traits from different parental lines (e.g., disease resistance, yield potential, stalk strength) into a composite genetic makeup that achieves both high productivity and reliability in hybrid performance.
2Adaptability or versatility
If mutagenesis and genetic modification techniques are applied, then desired traits like herbicide resistance and nutritional quality can be introduced, but the complexity of breeding programs increases
Solution Approach 1:
The patent applies preliminary action by performing mutagenesis and genetic modification early in the breeding process, before field testing and selection. This allows the breeder to pre-introduce desired traits (herbicide resistance, nutritional quality) and then systematically select for them through controlled crosses and self-pollination cycles, reducing the overall complexity by front-loading the modification step.
Solution Approach 2:
The patent uses segmentation by dividing the breeding program into distinct phases: mutagenesis treatment, initial selection, backcrossing to restore background, field testing, and final inbreeding. This segmentation allows complex genetic modifications to be managed in manageable steps, reducing the perceived complexity while maintaining adaptability.
3Reliability
If inbred lines are developed through multiple generations of self-pollination, then genetic stability is achieved, but time consumption increases
Solution Approach 1:
The patent applies preliminary action by establishing genetically stable inbred lines through multiple generations of self-pollination before using them in hybrid development. This preliminary inbreeding phase ensures genetic stability is achieved early, allowing subsequent hybrid breeding to proceed more efficiently without the need for continuous stabilization efforts.
Solution Approach 2:
The patent uses copying by creating replicated copies of the inbred line through self-pollination. Each generation of selfing produces genetically identical copies (assuming no new mutations), which allows the breeder to maintain stability while progressing through the breeding cycle. The copying process itself is the mechanism that achieves stability, though it does consume time.
Data Source
AI summary
Inbred corn line, designated KL19, are disclosed. The invention relates to the seeds of inbred corn line KL19, to the plants and plant parts of inbred corn line KL19 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line KL19 with itself or another corn line. The invention also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line KL19 and/or of the hybrids produced using the inbred as a parent. The invention further relates to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other corn lines derived from inbred corn line KL19.