Maize Hybrid X00D861 Segmentation for 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 high yield in a single hybrid variety, while maintaining uniformity and stability across environmental influences.
Innovation Solution
Development of the hybrid maize variety X00D861 through crossing proprietary Pioneer Hi-Bred International inbred varieties, with locus conversions and transformation processes to introduce specific traits, allowing for the production of seeds, plants, and their parts with enhanced genetic material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then resistance to diseases and insects, resistance to heat and drought, greater yield can be achieved, but uniformity of plant characteristics such as germination, stand establishment, growth rate, maturity, and plant and ear height becomes compromised
Solution Approach 1:
The patent segments the breeding process into distinct stages: developing inbred lines with specific traits, then crossing them to create hybrids. This segmentation allows each stage to be optimized independently - inbred lines are developed for uniformity and stability, while hybrids are created to combine desirable traits from different parents.
Solution Approach 2:
The patent applies local quality by giving different genetic compositions to different parts of the breeding program. Inbred lines have uniform genetics for stability, while hybrids have heterogeneous genetics to express diverse desirable traits. Each inbred line is developed with specific local characteristics that contribute to the overall hybrid performance.
2Productivity
If mechanical harvesting is implemented, then productivity is improved, but uniformity of plant characteristics such as germination, stand establishment, growth rate, maturity, and plant and ear height becomes critical
Solution Approach 1:
The patent applies preliminary action by developing and selecting inbred lines with desired uniformity characteristics before creating the final hybrid. This preliminary selection ensures that the genetic material has the necessary uniformity properties built in advance, which then manifest in the hybrid's ability to maintain uniformity under mechanical harvesting conditions.
Data Source
AI summary
A novel maize variety designated X00D861 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 hybrid maize variety X00D861 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X00D861 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X00D861, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X00D861. This invention further relates to methods for producing maize varieties derived from maize variety X00D861.