Maize Inbred PH2TSK Breeding for Disease Resistance and Yield

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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

A novel maize variety, PH2TSK, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and improved agronomic characteristics, using techniques such as backcross conversion, genetic manipulation, and transformation, allowing for the creation of hybrid seeds with enhanced traits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional maize breeding methods are used to combine desirable traits, then the resulting varieties have improved disease resistance and yield, but the development process takes six to twelve years

Engineering Contradiction:
Improvedisease resistanceVSAvoiddevelopment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent employs preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, yield potential, stress tolerance) before combining them in hybrid crosses. This systematic pre-preparation of parental lines with known characteristics accelerates the breeding process while ensuring reliable trait combination in the final variety

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple desirable traits are combined in a single variety, then the agronomic performance and yield are improved, but the complexity of the breeding program increases

Engineering Contradiction:
ImproveyieldVSAvoidbreeding program complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the complex breeding program into distinct modules: developing separate inbred lines each optimized for specific traits (disease resistance, yield, stress tolerance), then combining them in controlled hybrid crosses. This modular approach manages program complexity while achieving multi-trait improvement in the final variety

Inventive Principle:
Principle #1Segmentation

3Stability of the object's composition

If stable and agronomically sound varieties are developed, then the varieties perform reliably across different environments, but the development process requires extensive testing and validation

Engineering Contradiction:
Improvevariety stabilityVSAvoidtesting and validation process
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent employs parameter changes by systematically evaluating varieties across multiple environmental parameters and performance metrics (yield, disease resistance, stress tolerance) to identify lines with stable performance. This multi-parameter assessment ensures variety stability across different environments while providing objective criteria for selection

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9820465B1Maize inbred PH2TSK
Publication Date: 2017.11.21 PIONEER HI BREED INTERNATIONAL INC
  • US9820465B1 patent drawing

AI summary

A novel maize variety designated PH2TSK and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2TSK with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2TSK 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 PH2TSK or a locus conversion of PH2TSK with another maize variety.