Maize Hybrid X18D807 Trait Segmentation

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 hybrid maize varieties.

Innovation Solution

Development of the hybrid maize variety X18D807, produced by crossing proprietary Pioneer Hi-Bred International inbred varieties, which incorporates locus conversions and transformation processes to introduce specific traits, enhancing resistance to abiotic stresses and improving agronomic performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional plant breeding methods are used to combine multiple desirable traits, then the complexity of the breeding process increases, but the uniformity and stability of the hybrid maize variety may be compromised

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The breeding process is segmented into distinct phases: selecting specific inbred parental lines with complementary traits, controlled cross-pollination to create the hybrid, and subsequent generation management. This segmentation allows systematic combination of disease resistance, drought tolerance, and yield traits while maintaining uniformity through controlled reproduction protocols.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hybrid maize variety X18D807 is designed to perform multiple functions simultaneously: it provides disease resistance, drought tolerance, and high yield in a single unified variety. The inbred parental lines are selected to contribute different functional traits that work together in the hybrid, creating a multi-functional crop variety that addresses multiple agricultural challenges.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If multiple desirable traits are combined in a single hybrid, then the agronomic performance improves, but the difficulty of detecting and measuring trait expression increases

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

Different parental inbred lines are selected for specific local qualities or traits: one parent contributes disease resistance, another contributes drought tolerance, and both contribute to yield potential. By assigning specific trait responsibilities to specific parental lines, the measurement and detection of each trait can be focused and optimized independently, even though the final hybrid expresses all traits simultaneously.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS9338956B1Maize hybrid X18D807
Publication Date: 2016.05.17
  • US9338956B1 patent drawing

AI summary

A novel maize variety designated X18D807 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 X18D807 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X18D807 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X18D807, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X18D807. This invention further relates to methods for producing maize varieties derived from maize variety X18D807.