Maize PH2DMM Breeding Program Stability and Time Reduction
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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
The introduction of the novel maize variety PH2DMM, which involves crossing with another maize plant to introduce traits like male sterility, herbicide tolerance, insect resistance, and modified metabolic pathways through backcross conversion and genetic transformation, along with specific breeding and cultivation processes to ensure uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding processes are used to combine desirable traits, then the variety stability and agronomic soundness are improved, but the development time becomes excessively long (6-12 years)
Solution Approach 1:
The patent applies preliminary action by pre-establishing a structured breeding program with defined objectives and pre-selected germplasm before beginning the breeding process. This advance planning and preparation of breeding materials allows the program to proceed more efficiently through subsequent generations, reducing the overall development time while maintaining the systematic approach needed for variety stability.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety through extensive breeding, then the agronomic performance is improved, but the resource requirements and process complexity increase
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases with specific objectives: germplasm selection, initial crossing, backcrossing generations, and final variety development. Each phase focuses on incorporating specific traits or achieving particular genetic goals, allowing the complex task of combining multiple desirable traits to be managed through systematic, manageable steps rather than as a single overwhelming process.
3Productivity
If precise planning and efficient resource use are implemented in breeding programs, then the development process becomes more manageable, but the flexibility to adapt to new discoveries is reduced
Solution Approach 1:
The patent applies dynamics by designing a breeding program structure that maintains flexibility within its framework. While the overall program has defined phases and objectives for efficiency, each phase allows for adjustments based on observed results, new scientific discoveries, or changing agricultural needs. This dynamic approach enables the program to adapt its specific activities while maintaining the structured efficiency needed for productive breeding work.
Data Source
AI summary
A novel maize variety designated PH2DMM and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2DMM with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2DMM 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 PH2DMM or a locus conversion of PH2DMM with another maize variety.