Maize Inbred PH182Y Breeding for Disease Resistance and Uniformity
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and mechanical harvesting.
Innovation Solution
Development of the novel maize variety PH182Y, which is homozygous and combines desirable traits through a breeding process involving crossing, backcrossing, and transformation, allowing for the introduction of specific genetic traits and locus conversions to enhance its characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the time required for breeding and the complexity of the breeding process increase
Solution Approach 1:
The patent applies preliminary action by pre-screening and selecting parent lines with desired traits (disease resistance, drought tolerance) before initiating the breeding program. The inbred lines are developed and characterized in advance, allowing for more efficient hybrid development and reducing overall breeding time.
Solution Approach 2:
The breeding process is segmented into distinct phases: inbred line development, hybrid combination testing, and variety registration. This segmentation allows for systematic progression through breeding stages, improving efficiency and reducing the overall time required to develop new varieties with desired traits.
2Ease of operation
If traditional plant breeding is used to achieve uniformity of plant characteristics, then mechanical harvesting compatibility is improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies local quality by focusing uniformity selection on specific plant characteristics critical for mechanical harvesting (plant height, ear height, maturity timing) while allowing other traits to vary. This targeted approach achieves harvesting compatibility without requiring complete uniformity across all plant traits, reducing breeding program complexity.
Solution Approach 2:
The breeding program utilizes parameter changes by establishing specific target ranges for key uniformity parameters (plant height, ear height, maturity) and selecting hybrids that fall within these ranges. This quantitative approach to uniformity selection simplifies the breeding process compared to qualitative assessment methods.
3Productivity
If multiple desirable traits are combined in a single variety, then agronomic quality and yield are improved, but the difficulty of developing such varieties increases
Solution Approach 1:
The patent applies merging by combining multiple desirable traits (disease resistance, drought tolerance, yield potential, uniformity) into selected inbred lines and hybrid combinations. The breeding program systematically evaluates and combines these traits through controlled crosses and progeny testing, achieving multi-trait improvement while managing complexity through structured selection procedures.
Solution Approach 2:
The developed maize varieties exhibit universality by possessing multiple functional traits simultaneously - disease resistance, drought tolerance, high yield potential, and mechanical harvesting uniformity. This multi-functionality is achieved through careful selection of parent lines contributing different beneficial traits and evaluating hybrid combinations for overall performance across multiple criteria.
Data Source
AI summary
A novel maize variety designated PH182Y and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH182Y with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH182Y through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH182Y or a locus conversion of PH182Y with another maize variety.