Maize Inbred PH2CRV Breeding Program Stability
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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 various conditions and environments.
Innovation Solution
A novel maize variety, PH2CRV, is developed through careful breeding and selection, incorporating traits like cytoplasmic male sterility, herbicide tolerance, insect resistance, and modified metabolic pathways, achieved through 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 stability and yield are improved, but the breeding time and process complexity increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-establishing a comprehensive breeding program with defined objectives, selecting parent lines with specific desirable traits before crossing, and pre-planning the multi-year development pathway. This structured preliminary preparation reduces the overall breeding time by avoiding mid-process direction changes and ensuring efficient resource allocation from the outset.
Solution Approach 2:
The breeding process is segmented into distinct phases: parent line selection, controlled crossing, hybrid development, multi-environment testing, and variety registration. Each phase has specific objectives and deliverables, allowing parallel processing of multiple trait combinations and reducing total development time while maintaining variety stability through systematic evaluation at each stage.
2Productivity
If multiple desirable traits are combined in a single variety, then the agronomic performance and yield are improved, but the breeding program complexity and resource requirements increase
Solution Approach 1:
The patent employs universality by developing parent lines that serve multiple functions - each parent line is selected to contribute multiple desirable traits simultaneously (e.g., disease resistance, drought tolerance, and yield components). This multi-functional approach allows a single breeding program to achieve complex agronomic performance targets without requiring separate breeding programs for each trait, thereby reducing overall program complexity.
Solution Approach 2:
Multiple desirable traits from different parent lines are merged into a single hybrid variety through controlled crossing. The patent combines traits such as disease resistance, insect resistance, drought tolerance, and high yield potential into one integrated variety, achieving superior agronomic performance while managing complexity through systematic trait integration rather than separate trait development programs.
3Ease of manufacture
If precise planning and efficient resource use are maintained, then the breeding process is optimized, but the flexibility to adapt to new conditions is reduced
Solution Approach 1:
The breeding program incorporates dynamics by establishing a flexible framework that maintains efficient resource allocation while allowing adaptation to new conditions. The program structure enables modification of crossing schemes, selection criteria, and testing protocols based on emerging disease pressures, environmental changes, or market requirements, without compromising the overall efficiency gains from precise planning.
Solution Approach 2:
The patent applies parameter changes by allowing adjustment of breeding program parameters such as parent line selection criteria, crossing designs, and evaluation thresholds in response to changing conditions. This enables the program to adapt to new diseases, pests, or environmental challenges while maintaining efficient resource use through structured decision-making frameworks that guide parameter modifications.
Data Source
AI summary
A novel maize variety designated PH2CRV and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2CRV with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2CRV 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 PH2CRV or a locus conversion of PH2CRV with another maize variety.