Maize Inbred PH1KPB Breeding for Disease Resistance and Yield
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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, PH1KPB, through a specific breeding process involving crossing, selfing, and backcrossing to introduce desired traits, along with the use of genetic marker profiles for identification and locus conversions to enhance genetic integrity and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding techniques are used to combine desirable traits, then disease resistance and drought tolerance can be introduced, but the time required for breeding and the complexity of the breeding 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 line PH1KPB was developed through multiple generations of selection and characterization to ensure it possesses the desired traits, which then can be combined in a single crossing event rather than requiring prolonged breeding processes.
2Reliability
If traditional plant breeding techniques are used to combine desirable traits, then disease resistance and drought tolerance can be introduced, but the uniformity of plant characteristics decreases
Solution Approach 1:
The patent applies local quality by focusing on specific, localized traits in specific inbred lines rather than attempting to improve all traits simultaneously in a general population. The inbred line PH1KPB was specifically selected and bred to exhibit uniformity in key characteristics including germination, stand establishment, growth rate, maturity, plant height, and ear height, while maintaining disease resistance. This targeted approach to specific qualities allows for uniform hybrids.
3Productivity
If mechanical harvesting is used, then productivity increases, but the requirement for uniformity of plant characteristics becomes more critical
Solution Approach 1:
The patent applies parameter changes by standardizing key plant parameters to specific ranges that are optimal for mechanical harvesting. The inbred line PH1KPB and its hybrids exhibit uniformity in critical parameters including plant height, ear height, maturity timing, and growth rate. By controlling these parameters within specific ranges, the variety becomes compatible with mechanical harvesting systems while maintaining high productivity.
Data Source
AI summary
A novel maize variety designated PH1KPB and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1KPB with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1KPB 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 PH1KPB or a locus conversion of PH1KPB with another maize variety.