Maize Hybrid X6H862 Segmentation for Disease and Drought Resistance
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield while maintaining uniformity and stability in maize varieties.
Innovation Solution
The development of the maize variety X6H862, produced by crossing proprietary Pioneer Hi-Bred International inbred varieties, which incorporates traits through locus conversion and transformation, enabling improved resistance to various stresses and enhanced agronomic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be improved, but uniformity and stability of plant characteristics may deteriorate
Solution Approach 1:
The patent segments the breeding process into controlled crosses between specific inbred lines with known genetic backgrounds. By dividing the complex trait combination into manageable parental lines and using systematic crossing, the patent achieves both trait diversity and genetic uniformity in the hybrid progeny.
Solution Approach 2:
The patent creates true-to-type hybrids by copying the genetic characteristics of selected parental inbred lines. Through controlled pollination and seed production, the hybrid seeds replicate the desired combination of traits from parents, ensuring uniformity and stability when grown from these seeds.
2Productivity
If multiple desirable traits are combined in a single hybrid, then yield and stress resistance improve, but the complexity of breeding and selection increases
Solution Approach 1:
The patent performs preliminary development of inbred parental lines with specific desired traits before combining them in the final hybrid. This preliminary action of creating stable inbred lines with known characteristics simplifies the final hybridization step and reduces the complexity of selection, as the parental contributions are already optimized.
3Productivity
If uniformity of plant characteristics is maintained for mechanical harvesting, then harvest efficiency improves, but adaptability to diverse environmental conditions may deteriorate
Solution Approach 1:
The patent applies local quality by maintaining uniformity in specific harvest-critical characteristics (plant height, maturity timing, ear position) while allowing variability in other traits related to stress resistance. This selective uniformity approach enables mechanical harvesting efficiency without sacrificing environmental adaptability.
Data Source
AI summary
A novel maize variety designated X6H862 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize varieties. Methods for producing a maize plant that comprises crossing maize variety X6H862 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X6H862 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X6H862, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X6H862. This invention further relates to methods for producing maize varieties derived from maize variety X6H862.