Maize Inbred PH47F1 Accelerates Breeding via Preliminary Action

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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 maize varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.

Innovation Solution

The introduction of the novel maize variety PH47F1, which involves specific breeding techniques including backcross conversion, genetic manipulation, and transformation to incorporate traits like male sterility, disease resistance, and improved metabolic traits, along with detailed processes for crossing and seed production to achieve desired agronomic characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional breeding methods are used to develop new maize varieties, then desirable traits such as disease resistance and yield can be achieved, but the development process takes six to twelve years which is excessively time-consuming

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

Solution Approach 1:

The patent employs preliminary action by pre-selecting and characterizing inbred line PH47F1 with desirable traits including disease resistance, drought tolerance, and yield potential. The inbred line is developed and characterized in advance with specific physiological and morphological characteristics, allowing breeders to start hybrid development from a pre-optimized foundation rather than beginning from scratch each time. This preliminary preparation of germplasm with known desirable traits accelerates the overall breeding timeline while maintaining reliability of trait expression.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If traditional breeding methods are used to develop new maize varieties, then stable high-yielding varieties can be achieved, but the process is excessively lengthy taking six to twelve years

Engineering Contradiction:
ImproveyieldVSAvoiddevelopment time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The inbred line PH47F1 is developed in advance with proven high-yielding characteristics and stability across environments. By having this pre-characterized inbred line ready, breeders can immediately proceed to hybrid development and testing without the lengthy process of developing and validating each component variety from scratch. This preliminary action on the inbred line foundation significantly reduces the overall development time while maintaining the productivity and yield stability of the final hybrid varieties.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If conventional breeding approaches are used, then varieties with maximal yield over different conditions can be developed, but the breeding process takes six to twelve years which reduces breeding efficiency

Engineering Contradiction:
Improveyield stability across environmentsVSAvoidbreeding efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The inbred line PH47F1 undergoes preliminary evaluation and characterization for adaptability and yield stability across multiple environments and conditions before being deployed in hybrid programs. This pre-validation of environmental adaptability ensures that the inbred line contributes consistent performance across diverse growing conditions, while the preliminary nature of this work accelerates subsequent hybrid development. The pre-established adaptability data allows for more efficient selection and deployment in different agricultural settings.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11528862B1Maize inbred PH47F1
Publication Date: 2022.12.20 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH47F1 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH47F1 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH47F1 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 PH47F1 or a locus conversion of PH47F1 with another maize variety.