Maize Inbred PH2526 Breeding Segmentation

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Solution Overview

Problem

The development of new maize varieties and hybrids is a time-consuming process that requires precise planning and efficient resource use, aiming to combine desirable traits such as disease resistance, drought tolerance, and high yield, while maintaining stability across different conditions and environments.

Innovation Solution

The development of a novel maize variety, PH2526, through careful breeding and selection, incorporating traits like male sterility, herbicide tolerance, and resistance to diseases and insects, achieved by backcross conversion, genetic manipulation, and transformation, allowing for the creation of hybrid seeds with enhanced agronomic characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional maize breeding methods are used to combine desirable traits, then the resulting varieties have improved agronomic characteristics, but the development process takes 6-12 years and requires significant resources

Engineering Contradiction:
Improveagronomic characteristicsVSAvoidbreeding process duration
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-selecting and characterizing inbred line PH2526 with specific desirable traits (disease resistance, yield potential, adaptability) before hybrid development. This preliminary characterization of parental lines with known trait profiles enables more efficient hybrid breeding by reducing the need for extensive field testing in later generations, thereby shortening the overall breeding timeline while maintaining trait combination effectiveness

Inventive Principle:
Principle #10Preliminary action

2Reliability

If multiple desirable traits are combined in a single variety, then the variety achieves greater stability and yield across different conditions, but the breeding process becomes more complex and resource-intensive

Engineering Contradiction:
Improveyield stabilityVSAvoidbreeding process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the breeding process into distinct stages: first developing and characterizing individual inbred lines (like PH2526) with specific trait profiles, then combining these pre-characterized lines to create hybrids. This segmentation allows each parental line to be optimized for particular traits independently, and the hybrid combines these pre-tested trait packages, achieving multi-trait stability without proportionally increasing overall breeding complexity

Inventive Principle:
Principle #1Segmentation

3Productivity

If precise planning and efficient resource use are implemented in breeding, then new varieties can be developed faster, but the requirement for precise planning increases program complexity

Engineering Contradiction:
Improvevariety development speedVSAvoidprogram planning complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by systematically evaluating and selecting inbred lines based on specific measurable parameters (disease resistance levels, yield metrics, adaptability scores). PH2526 was selected based on quantifiable trait thresholds, enabling objective comparison and selection decisions. This parameter-based selection approach standardizes the breeding process, making it more efficient and reproducible without requiring overly complex planning frameworks

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9907272B1Maize inbred PH2526
Publication Date: 2018.03.06 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH2526 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2526 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2526 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH2526 or a locus conversion of PH2526 with another maize variety.