Maize Inbred PH4CDT 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 combining desirable traits such as disease resistance, drought tolerance, and high yield in a single variety that is agronomically sound across different conditions and environments.
Innovation Solution
A novel maize variety, PH4CDT, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and drought tolerance via backcross conversion and genetic transformation, allowing for the creation of stable, high-yielding hybrids with improved agronomic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to combine desirable traits, then the variety achieves disease resistance, drought tolerance, and high yield, but the development process takes six to twelve years
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred line PH4CDT with specific desirable traits (male sterility, disease resistance, drought tolerance) before hybrid development. This pre-characterization allows breeders to immediately use this inbred line in crossing programs without lengthy preliminary selection phases, reducing overall breeding time while ensuring agronomic soundness is built into the foundation genotype
2Adaptability or versatility
If multiple desirable traits are combined in a single variety, then the variety achieves high yield and stress tolerance, but the breeding process becomes more complex and time-consuming
Solution Approach 1:
The patent merges multiple desirable traits (male sterility, disease resistance, drought tolerance, high yield potential) into a single inbred line PH4CDT through systematic breeding. This consolidation allows breeders to obtain all these traits simultaneously in one parental line, simplifying hybrid development compared to combining traits from multiple different sources, thereby reducing breeding process complexity while maintaining high adaptability
3Productivity
If stable, high-yielding hybrids are developed for maximal yield over different conditions, then yield consistency is improved, but the development process requires extensive testing and validation
Solution Approach 1:
The patent applies preliminary action by conducting extensive characterization and validation of inbred line PH4CDT across multiple environments and stress conditions before it is released for hybrid development. This pre-validation ensures that hybrids derived from PH4CDT will exhibit consistent high yield across different conditions, reducing the need for lengthy validation phases in subsequent hybrid testing programs
Data Source
AI summary
A novel maize variety designated PH4CDT and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH4CDT with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH4CDT 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 PH4CDT or a locus conversion of PH4CDT with another maize variety.