Maize Inbred PH1CH7 Uniformity and Stress Resistance
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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 novel maize variety PH1CH7, which is homozygous and combines desirable traits through a specific breeding process, including crossing and backcrossing, to produce seeds and plants with improved resistance to various stresses and agronomic qualities.
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 may be compromised
Solution Approach 1:
The patent applies parameter changes by systematically varying breeding parameters including the number of backcrossing generations (B1-B6), selection intensity, and environmental conditions to optimize both trait combination and uniformity. The breeding program monitors and adjusts parameters such as germination percentage, stand establishment, and plant morphology to achieve 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 increasingly important
Solution Approach 1:
The patent applies preliminary action by conducting extensive pre-breeding work and characterizing plant characteristics before commercial deployment. The breeding program performs preliminary selections for uniformity in germination, stand establishment, growth rate, and maturity to ensure that when mechanical harvesting is implemented, the crop exhibits consistent characteristics suitable for efficient harvesting operations.
3Reliability
If backcross conversion and transformation processes are used to introduce traits, then specific resistance traits can be obtained, but the complexity of the breeding process increases
Solution Approach 1:
The patent applies segmentation by dividing the complex breeding process into distinct manageable stages: initial crossing, backcrossing generations (B1-B6), selection cycles, and transformation. Each stage focuses on specific objectives such as introducing particular resistance traits or achieving desired uniformity, making the overall complex process more controllable and systematic.
Data Source
AI summary
A novel maize variety designated PH1CH7 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1CH7 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1CH7 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 PH1CH7 or a locus conversion of PH1CH7 with another maize variety.