Maize Inbred PH18VF Trait Integration via Backcross Conversion
Find Innovative SolutionsGenerate Solutions
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 mechanical harvesting.
Innovation Solution
Development of the novel maize variety PH18VF, which is homozygous and combines desirable traits through backcross conversion and transformation processes, allowing for the introduction of specific traits and locus conversions to enhance its genetic makeup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are 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 breeding process increase significantly
Solution Approach 1:
The patent employs preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, drought tolerance, uniformity) before hybridization. The inbred line PH18VF has been预先 developed through traditional breeding to possess multiple desirable traits, allowing faster combination in hybrid production without requiring extensive field breeding time.
Solution Approach 2:
The patent uses an intermediary approach by developing a specific inbred line (PH18VF) that serves as a mediator carrying multiple desirable traits. This inbred line acts as a genetic vehicle that combines disease resistance, drought tolerance, and uniformity, which can then be crossed with other lines to produce hybrids inheriting these traits without requiring direct multi-generational breeding of all traits simultaneously.
2Reliability
If multiple desirable traits are combined in a single variety, then the overall performance and reliability improve, but the genetic complexity and difficulty of breeding increase
Solution Approach 1:
The patent applies segmentation by dividing the complex task of combining multiple traits into manageable segments. Instead of attempting to combine all desirable traits in a single multi-generational breeding program, the patent segments the process by: (1) developing inbred line PH18VF with specific trait combinations through controlled breeding, (2) characterizing its genetic and phenotypic properties, and (3) using it as a parent in hybrid crosses to transfer specific trait segments to the final variety.
Solution Approach 2:
The patent employs local quality by focusing on specific trait expressions in specific genetic backgrounds. The inbred line PH18VF is characterized for local qualities including disease resistance, drought tolerance, and uniformity of plant characteristics. Each trait is optimized in this specific genetic context, allowing the combination of multiple desirable local qualities without requiring uniform optimization across all possible trait combinations.
3Productivity
If uniformity of plant characteristics is enhanced for mechanical harvesting, then harvesting efficiency improves, but the adaptability to different environmental conditions may be reduced
Solution Approach 1:
The patent applies universality by developing inbred line PH18VF with multi-functional characteristics that serve multiple purposes simultaneously. The line exhibits uniformity of plant characteristics (height, ear height, maturity) that enables mechanical harvesting, while also possessing disease resistance and drought tolerance that provide environmental adaptability. This multi-functional inbred line can be used across different environments while maintaining the uniformity required for mechanized production.
Data Source
AI summary
A novel maize variety designated PH18VF and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH18VF with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH18VF 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 PH18VF or a locus conversion of PH18VF with another maize variety.