Maize Variety PHEDV Trait Introgression and Hybrid Development
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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, PHEDV, through crossing and introgression processes to incorporate specific traits, including resistance to diseases and abiotic stresses, with the use of genetic marker profiles for identification and validation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is 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 process increase
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, drought tolerance, uniformity) before combining them in hybrid development. The inbred lines are screened and evaluated for multiple traits in advance, allowing the hybrid to inherit these pre-validated characteristics, thus reducing the overall breeding time while maintaining reliability of trait expression.
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic quality and yield improve, but the uniformity of plant characteristics becomes more difficult to maintain
Solution Approach 1:
The patent merges multiple inbred lines, each contributing specific desirable traits (disease resistance, drought tolerance, uniformity), into a single hybrid variety. By combining genetically uniform inbred parents, the hybrid achieves both high yield through heterosis and maintained uniformity of plant characteristics, resolving the contradiction between trait combination and uniformity.
3Manufacturing precision
If inbred lines are screened and evaluated for multiple traits, then the quality of the resulting hybrid improves, but the complexity and cost of the breeding process increase
Solution Approach 1:
The patent segments the breeding process into distinct phases: (1) development and screening of individual inbred lines for specific traits, (2) evaluation of inbred line combinations, and (3) hybrid development and testing. This segmentation allows systematic evaluation of multiple traits across different stages, improving trait selection accuracy while making the overall complex process more manageable and organized.
Data Source
AI summary
A novel maize variety designated PHEDV and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PHEDV with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHEDV 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 PHEDV or a trait conversion of PHEDV with another maize variety. Inbred maize varieties derived from maize variety PHEDV, methods for producing other inbred maize varieties derived from maize variety PHEDV and the inbred maize varieties and their parts derived by the use of those methods.