SLD04 Inbred Corn Line Genetic Uniformity and Yield
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Solution Overview
Problem
The development of new inbred corn lines is a slow and costly process that requires expertise, and existing inbred parent corn lines lose commercial competitiveness over time, necessitating the need for improved germplasm with enhanced yield, disease resistance, and trait technologies.
Innovation Solution
The introduction of the inbred corn line SLD04, which is a yellow dent inbred corn line with specific physiological and morphological characteristics, and methods for producing and utilizing it, including self-pollination, sib-pollination, and hybrid production, as well as genetic modification and tissue culture techniques to enhance its traits and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional inbreeding methods are used to develop new inbred corn lines, then genetic uniformity and homozygosity are improved, but the process is slow and costly, and commercial competitiveness is lost over time
Solution Approach 1:
The patent utilizes genomic selection and molecular markers to change the parameters of the breeding process. By incorporating DNA-based selection criteria alongside traditional phenotypic selection, the method accelerates the identification of superior inbred lines while maintaining genetic uniformity, thereby resolving the contradiction between precision and productivity.
Solution Approach 2:
The patent replaces manual, time-consuming field-based selection methods with molecular genetic tools and genomic analysis. This substitution of mechanical/physical selection processes with biochemical and digital analysis methods significantly speeds up the development process while maintaining the required genetic precision.
2Reliability
If existing inbred parent corn lines are used, then current crop production is maintained, but commercial competitiveness is lost over time due to lack of improvement
Solution Approach 1:
The patent implements preliminary action by pre-selecting and pre-developing inbred lines with enhanced traits (disease resistance, yield, adaptability) before they are needed for commercial production. This forward-looking approach ensures that the germplasm base remains competitive and adaptable to changing agricultural conditions while maintaining reliable current production.
Solution Approach 2:
The patent creates inbred lines that possess multiple desirable traits simultaneously (yield improvement, disease resistance, stress tolerance), making them universally applicable across different production environments and market conditions. This multi-functionality restores and maintains commercial competitiveness while ensuring production stability.
3Object-affected harmful factors
If protective chemicals are applied to control insects and diseases, then plant health is improved, but production costs increase and environmental impact worsens
Solution Approach 1:
The patent converts the harmful effect of disease and pest vulnerability into a benefit by incorporating resistant varieties with enhanced protective traits. By selecting and breeding inbreds with inherent resistance mechanisms, the approach transforms a problem (need for chemicals) into a solution (natural resistance), thereby improving plant health while eliminating chemical dependency.
Solution Approach 2:
The patent enables plants to protect themselves through genetically engineered resistant traits. The inbred lines are designed with built-in defense mechanisms against insects and diseases, allowing the plants to self-protect without external chemical interventions, thus eliminating the harmful cycle of chemical application and resistance development.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
SLD04 provides a stable and uniform corn line with improved yield, disease resistance, and adaptability, allowing for cost-effective control of insects, weeds, and diseases, thereby enhancing the commercial competitiveness of hybrids and reducing the need for protective chemicals.
Implementation Method 1
Self-pollination occurs when pollen from the male flower is transferred to a female flower on the same plant
Implementation Method 2
A plant is sib-pollinated (a type of cross-pollination) when individuals within the same family or line are used for pollination
Implementation Method 3
Pollination is consummated by transfer of pollen from the tassels of the male flower to the silks of the female flowers
Data Source
AI summary
An inbred corn line, designated SLD04, the plants and seeds of the inbred corn line SLD04, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line SLD04 with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line SLD04 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 SLD04, to methods for producing other inbred corn lines derived from inbred corn line SLD04 and to the inbred corn lines derived by the use of those methods.