Maize Inbred PH2T4K Breeding via Segmentation and Preliminary Action
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years, and existing technologies face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield in a stable and agronomically sound manner.
Innovation Solution
The introduction of the novel maize variety PH2T4K, which can be crossed with other maize plants to introduce desired traits through backcross conversion, genetic manipulation, and transformation, incorporating cytoplasmic or nuclear factors for male sterility and other beneficial characteristics, and the use of tissue culture to regenerate plants with specific physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to combine desirable traits, then stable high-yielding varieties can be developed, but the process takes six to twelve years which is too time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, drought tolerance, yield potential) before combining them. The inbred line PH2T4K and other parent lines have been预先 developed and tested for specific traits, allowing the breeding program to start from known, validated genetic sources rather than beginning trait discovery from scratch each time a new variety is needed.
Solution Approach 2:
The patent segments the breeding process into distinct phases: developing individual inbred lines with specific traits, evaluating their combining ability, and then systematically combining them in hybrid programs. Each inbred line is developed and characterized independently for specific traits (e.g., PH2T4K for disease resistance, other lines for drought tolerance), allowing parallel development of multiple trait components that can be combined later.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety, then agronomic performance is improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent creates inbred lines that serve multiple functions: PH2T4K provides disease resistance, drought tolerance, and good combining ability across multiple trait combinations. The same inbred line can be used as a parent in different hybrid combinations to impart similar beneficial traits, reducing the need to develop entirely new lines for each trait combination and simplifying the overall breeding program.
Solution Approach 2:
The patent systematically varies breeding parameters by testing different inbred line combinations, evaluating combining ability under different environmental conditions, and selecting the optimal parent pairs for specific target traits. This parameter-based approach allows the program to methodically optimize variety performance for different agronomic requirements without increasing overall program complexity.
Data Source
AI summary
A novel maize variety designated PH2T4K and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2T4K with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2T4K through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH2T4K or a locus conversion of PH2T4K with another maize variety.