Maize Inbred PH18TA Breeding for Disease Resistance and Uniformity
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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 a novel maize variety, PH18TA, through a breeding process involving crossing inbred lines, self-pollination, and selection, resulting in a substantially homozygous line with improved traits such as resistance to various stresses and uniform plant characteristics.
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. This advance preparation and selection process streamlines the overall breeding timeline by having ready-to-use parental lines with known trait profiles, reducing the time needed for trait combination and validation.
2Reliability
If traditional plant breeding is used to combine desirable traits, then agronomic quality can be improved, but the complexity of the breeding process increases
Solution Approach 1:
The patent applies segmentation by dividing the complex breeding process into distinct stages: developing pure inbred lines with specific traits, evaluating them separately for uniformity and agronomic quality, and then combining selected lines to produce hybrids. This segmented approach allows systematic management of complexity by handling one trait or line at a time rather than attempting to combine all traits simultaneously.
3Productivity
If uniformity of plant characteristics is improved for mechanical harvesting, then harvest efficiency increases, but genetic diversity may be reduced
Solution Approach 1:
The patent applies local quality by achieving uniformity specifically in traits critical for mechanical harvesting (plant height, ear height, maturity timing) while maintaining genetic diversity in other traits through the use of diverse inbred parental lines. This allows the hybrid to exhibit local uniformity where needed for harvesting efficiency while preserving overall genetic diversity for adaptability and resilience.
Data Source
AI summary
A novel maize variety designated PH18TA and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH18TA with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH18TA 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 PH18TA or a locus conversion of PH18TA with another maize variety.