Hybrid Maize Trait Introgression for Stable Field Uniformity
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Solution Overview
Problem
Existing hybrid maize development methods struggle to combine desirable traits such as disease resistance, heat and drought tolerance, and improved yield while maintaining uniformity and stability, which are crucial for commercial crop production.
Innovation Solution
A novel maize hybrid variety X16T124 is developed by crossing inbred varieties and introducing genetic loci for traits like male sterility, disease resistance, and altered metabolism through backcrossing and transformation, ensuring cytoplasmic inheritance and regenerable tissue cultures to maintain uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine multiple desirable traits, then trait diversity increases, but uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct phases: developing inbred lines with specific traits, then crossing them to produce hybrids. This segmentation allows each parent line to contribute specific desirable traits while the hybrid combines them uniformly, resolving the contradiction between trait diversity and uniformity.
Solution Approach 2:
The patent applies local quality by ensuring that specific desirable traits (disease resistance, heat tolerance, drought tolerance) are concentrated in specific parent inbred lines, while the hybrid offspring exhibits uniform expression of these traits across the population, achieving both trait specificity and overall uniformity.
2Reliability
If multiple traits are combined in a single hybrid, then agronomic quality improves, but complexity of the breeding process increases
Solution Approach 1:
The breeding process is segmented into developing specialized inbred lines (each with specific traits) and then crossing them. This segmentation simplifies the overall process by breaking down the complex task of combining multiple traits into manageable steps, where each parent line is optimized for specific characteristics.
Solution Approach 2:
The hybrid maize variety serves multiple functions simultaneously: it provides disease resistance, heat tolerance, drought tolerance, and improved yield in a single variety. This multi-functionality improves agronomic quality while the standardized hybridization process maintains manageable complexity.
3Productivity
If mechanical harvesting is implemented, then productivity increases, but requirements for uniformity of plant characteristics increase
Solution Approach 1:
The patent ensures that key plant characteristics (germination, stand establishment, growth rate, maturity, plant height, ear height) are uniformly optimized for mechanical harvesting compatibility. By controlling these specific local qualities in the hybrid, the variety achieves both high productivity through mechanical harvesting and the necessary uniformity.
Solution Approach 2:
The patent optimizes specific parameters of the hybrid maize (plant height, ear height, maturity timing) to match the requirements of mechanical harvesting equipment. By adjusting these parameters to specific ranges, the variety enables efficient mechanical harvesting while maintaining the uniformity required for such operations.
Data Source
AI summary
A novel maize variety designated X16T124 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X16T124 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X16T124 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X16T124, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X16T124 are provided. Methods for producing maize varieties derived from maize variety X16T124 and methods of using maize variety X16T124 are disclosed.