Inbred Maize PH18FN Trait Segmentation
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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 mechanical harvesting.
Innovation Solution
Development of the maize variety PH18FN, which is a novel inbred line with specific traits introgressed through backcross conversion and transformation, combining resistance to various stresses and improved agronomic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then resistance to diseases and insects, resistance to heat and drought, and greater yield can be achieved, but uniformity of plant characteristics such as germination, stand establishment, growth rate, maturity, plant height and ear height is compromised
Solution Approach 1:
The breeding program segments the combination of traits by developing specific inbred lines (such as PH18FN) that carry particular trait combinations, allowing each line to be optimized for specific characteristics while maintaining overall uniformity through controlled self-pollination and repeated backcrossing generations
Solution Approach 2:
The patent applies parameter changes through multiple backcrossing generations (F1, F2, F3, F4) to progressively refine and stabilize plant characteristics. Each generation undergoes selection for specific parameters (germination uniformity, stand establishment, growth rate, maturity timing, plant height, ear height) to achieve the desired uniformity while maintaining disease and drought resistance
2Productivity
If mechanical harvesting is implemented, then crop production efficiency is improved, but uniformity of plant characteristics becomes critical and any deviation can reduce harvesting efficiency
Solution Approach 1:
The breeding program performs preliminary selection and stabilization of uniform plant characteristics during the development phase through multiple backcrossing generations. By establishing uniformity in germination, stand establishment, growth rate, maturity timing, plant height, and ear height before the crop is deployed for mechanical harvesting, the system ensures that when mechanical harvesting occurs, the uniformity is already in place to enable efficient harvesting operations
Data Source
AI summary
A novel maize variety designated PH18FN and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH18FN with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH18FN 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 PH18FN or a locus conversion of PH18FN with another maize variety.