Maize Variety X6T596 Segmented Breeding 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, while maintaining uniformity and agronomic quality, especially under stress conditions.

Innovation Solution

The development of the maize variety X6T596, produced by crossing two proprietary Pioneer Hi-Bred International inbred varieties, which incorporates traits like drought resistance, disease resistance, and improved agronomic characteristics through backcross conversion and transformation processes, allowing for the introgression of specific traits and the production of derived varieties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but uniformity of plant characteristics and agronomic quality may be compromised

Engineering Contradiction:
Improvedisease resistanceVSAvoiduniformity of plant characteristics
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The breeding process is segmented into distinct phases: developing inbred lines with specific traits, testing hybrid combinations, and selectively combining parental lines. This segmentation allows disease resistance and drought tolerance to be developed in separate inbred lines before combining them in a hybrid, ensuring both trait integration and uniformity in the final variety.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Inbred parental lines are developed and characterized in advance for specific desirable traits such as disease resistance and drought tolerance. This preliminary development and characterization of parental lines ensures that when hybrids are produced, they inherit these pre-validated traits while maintaining uniformity, as the parental lines have already been stabilized through multiple generations of inbreeding.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple desirable traits are combined in a single hybrid, then resistance to diseases and insects and drought tolerance can be achieved, but the complexity of breeding and selection increases

Engineering Contradiction:
Improveresistance to diseases and insectsVSAvoidbreeding and selection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple desirable traits including disease resistance, drought tolerance, and high yield are merged into a single hybrid variety by carefully selecting and combining specific inbred parental lines. Each parental line contributes specific traits, and their combination in the hybrid produces a unified variety with multiple integrated functions, simplifying the overall breeding outcome while maintaining trait diversity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The resulting hybrid variety is designed to perform multiple functions simultaneously: it provides resistance to diseases and insects, drought tolerance, high yield, and uniform agronomic characteristics. This multi-functional design allows a single variety to address multiple agricultural challenges, reducing the need for separate varieties for different conditions and simplifying farm management.

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

3Stability of the object's composition

If uniformity of plant characteristics is maintained for mechanical harvesting, then germination and stand establishment uniformity can be achieved, but adaptability to different growing conditions may be reduced

Engineering Contradiction:
Improveuniformity of germination and stand establishmentVSAvoidadaptability to different growing conditions
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The hybrid variety exhibits local quality by maintaining uniformity in specific characteristics critical for mechanical harvesting (germination, stand establishment, plant height, maturity) while simultaneously incorporating adaptability to different growing conditions through traits like drought tolerance and disease resistance. This allows the variety to be mechanically harvestable while still performing well across diverse environments.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The breeding process optimizes specific parameters (germination rate, stand establishment uniformity, plant height, maturity timing) to ensure mechanical harvestability, while other parameters (drought tolerance, disease resistance) are optimized for adaptability. This selective parameter optimization allows the variety to meet both uniformity requirements for mechanical harvesting and adaptability requirements for different growing conditions.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS7919692B1Maize variety X6T596
Publication Date: 2011.04.05 PIONEER HI BREED INTERNATIONAL INC
  • US7919692B1 patent drawing

AI summary

A novel maize variety designated X6T596 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 X6T596 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X6T596 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X6T596, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X6T596. This invention further relates to methods for producing maize varieties derived from maize variety X6T596 and to the maize varieties derived by the use of those methods.