Kniphofia Gold Rush Plant Breeding for Color Retention
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Solution Overview
Problem
Current Kniphofia cultivars lack unique characteristics such as gracefully arching foliage, rapid growth, dense habit, heat and pest tolerance, and consistent bright yellow flower color retention on medium height stems, with limited rebloom potential.
Innovation Solution
Development of Kniphofia 'Gold Rush' through a cross between 'Sally's Comet' and 'Echo Mango', exhibiting gracefully arching gray-green foliage, dense and vigorous growth, heat and pest tolerance, and numerous bright yellow buds that retain color on medium height stems, with late summer flowering and potential rebloom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional Kniphofia cultivars are used, then basic flowering function is provided, but they lack unique characteristics such as gracefully arching foliage, rapid growth, dense habit, and consistent bright yellow color retention
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific phenotypic parameters including flower color (bright yellow), foliage characteristics (gracefully arching, gray-green), growth rate (rapid), and habit (dense). These parameter selections resolve the contradiction by establishing consistent, unique characteristics that distinguish the new cultivar from conventional varieties.
2Quantity of substance
If Kniphofia cultivars are bred for taller growth, then more flowers are produced, but heat tolerance and pest resistance are reduced
Solution Approach 1:
The patent applies local quality by developing a cultivar with medium height (avoiding extreme tallness) while concentrating desirable traits locally: bright yellow flower color, gracefully arching foliage, dense habit, and improved heat/pest tolerance. This resolves the contradiction by not sacrificing reliability for quantity,而是 finding an optimal balance point.
3Ease of manufacture
If propagation methods are simplified, then ease of production increases, but stability of unique characteristics across generations decreases
Solution Approach 1:
The patent applies copying through asexual propagation methods (division and tissue culture) that create genetically identical copies of the parent plant. This ensures stable transmission of unique characteristics across generations while maintaining ease of production, as these propagation methods are well-established and reliable for Kniphofia.
4Duration of action of moving object
If flowering period is extended, then ornamental value increases, but energy consumption for plant maintenance increases
Solution Approach 1:
The patent applies periodic action by providing a cultivar that flowers over an extended period (late summer through fall, with potential rebloom) rather than all flowers opening simultaneously. This extends the ornamental display duration while distributing energy requirements over time, allowing the plant to manage its energy resources more efficiently throughout the growing season.
Data Source
AI summary
A new and distinct cultivar of ornamental Red Hot Poker, Kniphofia plant named ‘Gold Rush’, with long, gracefully-arching, strap-like, keeled, glaucous, gray-green foliage and numerous scapes beginning in late summer with rebloom under optimal growing conditions. Habit is densely-growing, winter-hardy and tolerant of heat. Numerous scapes with dense flowers of intense bright yellow buds that retain their color when flowers open. The new plant is useful for landscaping as a specimen, en masse, or as a long-lasting cut flower.