Maize Variety PHCGM Breeding for Yield and Disease Resistance

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Solution Overview

Problem

Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and yield improvement.

Innovation Solution

Development of a novel maize variety, PHCGM, through crossing and introgression processes that incorporate desirable traits, allowing for the creation of hybrid seeds and plants with enhanced agronomic characteristics, including resistance to various stresses and improved yield.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional plant breeding methods are used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the time required for breeding and the complexity of the breeding process increase

Engineering Contradiction:
Improvedisease resistanceVSAvoidbreeding time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent employs preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, drought tolerance, uniformity) before combining them in hybrid development. This advance preparation of parental lines with known trait profiles accelerates the breeding process while ensuring reliable trait combination in the final hybrid variety.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple desirable traits are combined in a single variety, then yield and stress resistance improve, but the uniformity of plant characteristics becomes more difficult to maintain

Engineering Contradiction:
ImproveyieldVSAvoiduniformity
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent applies merging by combining multiple inbred lines, each contributing specific desirable traits (disease resistance, drought tolerance, uniformity), into a single hybrid variety. This integration of genetically diverse parental lines allows the final hybrid to express multiple improved traits simultaneously while maintaining uniformity through controlled hybridization and selection processes.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If inbreeding is used to develop uniform varieties, then uniformity of plant characteristics improves, but genetic diversity and adaptability decrease

Engineering Contradiction:
ImproveuniformityVSAvoidadaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by developing a hybrid variety that serves multiple functions: it maintains uniformity through inbreeding of parental lines while simultaneously achieving adaptability through the combination of genetically diverse inbreds. The resulting hybrid exhibits both phenotypic uniformity and broad adaptability to different environmental conditions, making it universally applicable across various growing regions.

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

Data Source

PatentUS8044275B1Inbred maize variety PHCGM
Publication Date: 2011.10.25 PIONEER HI BREED INTERNATIONAL INC
  • US8044275B1 patent drawing

AI summary

A novel maize variety designated PHCGM and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PHCGM with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHCGM through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PHCGM or a trait conversion of PHCGM with another maize variety. Inbred maize varieties derived from maize variety PHCGM, methods for producing other inbred maize varieties derived from maize variety PHCGM and the inbred maize varieties and their parts derived by the use of those methods.