Kentucky Bluegrass Starr Variety Summer Stress Tolerance

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Solution Overview

Problem

Kentucky bluegrass varieties face challenges such as susceptibility to summer stresses, diseases, pests, and traffic, which affect their performance and durability in turf applications.

Innovation Solution

The development of a novel Kentucky bluegrass variety designated ‘Starr’, which includes regenerable cells for tissue culture, methods for producing hybrid seeds, and transformed plants with transgenes for enhanced traits like disease resistance and improved shelf-life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional Kentucky bluegrass varieties are used, then they can be easily cultivated and established, but they are susceptible to summer stresses, diseases, pests, and traffic

Engineering Contradiction:
Improvetolerance to summer stresses, disease resistance, pest resistance, traffic toleranceVSAvoidbreeding program complexity, tissue culture requirements, transgene integration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by modifying the genetic composition of Kentucky bluegrass through transgene integration. Specific genetic parameters are altered to confer enhanced tolerance to summer stresses, disease resistance, pest resistance, and traffic tolerance, transforming the plant's physiological parameters to achieve superior performance under adverse conditions.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite materials by creating genetically composite Kentucky bluegrass plants that combine the native genome with introduced transgenes. This genetic composite structure integrates multiple functional elements (stress tolerance genes, disease resistance genes, pest resistance genes) into a single plant variety, achieving multi-trait improvement simultaneously.

Inventive Principle:
Principle #40Composite materials

2Reliability

If new Kentucky bluegrass varieties with enhanced traits are developed, then performance under stress is improved, but the breeding and production process becomes more complex

Engineering Contradiction:
Improvedurability under traffic, tolerance to summer stressesVSAvoidproduction method complexity, tissue culture regeneration
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies preliminary action by establishing tissue culture regeneration systems and breeding protocols in advance. Regenerable cells are prepared and characterized beforehand, allowing for systematic production of genetically modified plants. This preliminary preparation of cellular infrastructure simplifies subsequent large-scale production of the enhanced Kentucky bluegrass varieties.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements self-service by developing self-regenerating tissue culture systems where plant cells can autonomously differentiate and regenerate complete plants under controlled conditions. This self-service capability eliminates the need for continuous manual intervention in the propagation process, reducing labor complexity while maintaining production of genetically enhanced traits.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250048985A1Kentucky bluegrass variety named 'starr'
Publication Date: 2025.02.13 GO SEED

AI summary

A Kentucky bluegrass variety designated ‘Starr’ is disclosed. The invention relates to the seeds of Kentucky bluegrass variety named ‘Starr’, to the plants of Kentucky bluegrass variety named ‘Starr’, to the plant parts of Kentucky bluegrass variety named ‘Starr’, and to methods for producing progeny of Kentucky bluegrass variety named ‘Starr’. The invention also relates to methods for producing a Kentucky bluegrass plant containing in its genetic material one or more transgenes and to the transgenic Kentucky bluegrass plants and plant parts produced by those methods. The invention also relates to Kentucky bluegrass varieties or breeding cultivars, and plant parts derived from Kentucky bluegrass variety named ‘Starr’. The invention also relates to methods for producing other Kentucky bluegrass cultivars, lines, or plant parts derived from Kentucky bluegrass variety named ‘Starr’, and to the Kentucky bluegrass plants, varieties, and their parts derived from use of those methods. The invention further relates to hybrid Kentucky bluegrass seeds, plants, and plant parts produced by crossing cultivar ‘Starr’ with another bluegrass cultivar.