Maize Inbred PH4CWP Breeding Acceleration

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Solution Overview

Problem

The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years, and existing technologies face challenges in creating stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.

Innovation Solution

The introduction of the novel maize variety PH4CWP, which involves crossing and genetic manipulation to incorporate traits like male sterility, disease resistance, and improved agronomic characteristics, using backcross conversion and transformation techniques, and the production of hybrid seeds through controlled pollination processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional maize breeding processes are used to develop new varieties with desirable traits, then the varieties achieve stability and high yield, but the development process takes six to twelve years

Engineering Contradiction:
Improveyield stabilityVSAvoiddevelopment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-selecting and characterizing inbred line PH4CWP with specific desirable traits (disease resistance, stress tolerance, yield potential) before hybrid development. This advance preparation of parent lines with known characteristics accelerates the breeding process by eliminating later selection steps, while ensuring the hybrid will inherit stable, high-yielding traits from the pre-validated parent

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple desirable traits are combined in a single maize variety, then the variety achieves greater yield and improved agronomic characteristics, but the breeding process becomes more complex and time-consuming

Engineering Contradiction:
ImproveyieldVSAvoidbreeding process complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple desirable traits into inbred line PH4CWP through systematic breeding, combining disease resistance, stress tolerance, and yield potential into a single parent line. This consolidation allows the hybrid to inherit multiple traits simultaneously from one validated parent, reducing breeding complexity compared to developing each trait separately

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Inbred line PH4CWP serves as a universal parent that can be crossed with multiple different inbreds to produce hybrids with consistent desirable traits. This multi-functional parent line approach allows the same genetic foundation to be used across multiple hybrid combinations, simplifying the breeding program while maintaining high yield and trait stability

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

Data Source

PatentUS11696544B2Maize inbred PH4CWP
Publication Date: 2023.07.11 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH4CWP and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH4CWP with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH4CWP 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 PH4CWP or a locus conversion of PH4CWP with another maize variety.