Stokesia Riptide Cultivar Hybridization for Ornamental Traits
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Solution Overview
Problem
Current Stokes' Aster cultivars lack a compact, rounded habit with large composite flowers of periwinkle-blue ray florets and purplish-blue disk florets, and a long flowering season with branching on strong upright stems, making them less diverse in ornamental landscaping.
Innovation Solution
The development of Stokesia laevis 'Riptide', a new cultivar with a compact rounded habit, large composite flowers featuring periwinkle-blue ray florets and purplish-blue disk florets, and a long flowering season on strong upright stems, achieved through hybridization between 'Maroon' and 'Peachie's Pick' and propagated via division and sterile shoot tip tissue culture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing Stokes' Aster cultivars are used, then they have various flower colors and habits, but they lack the specific combination of compact rounded habit, large composite flowers with periwinkle-blue ray florets and purplish-blue disk florets, and long flowering season
Solution Approach 1:
The patent combines multiple desirable traits from different parent plants into a single cultivar. The female parent 'Maroon' contributed burgundy-maroon flowers and open habit, while the male parent 'Peachie's Pick' contributed lavender blue flowers and smaller habit. The hybridization merged these traits to produce 'Riptide' with its unique periwinkle-blue ray florets, purplish-blue disk florets, compact rounded habit, and long flowering season, achieving both ornamental diversity and trait consistency
2Stability of the object's composition
If asexual propagation by division and tissue culture is used, then the plant maintains its unique characteristics and reproduces identical individuals, but the propagation process requires technical expertise and facilities
Solution Approach 1:
The patent employs sterile shoot tip tissue culture to create exact genetic copies of the plant. This in vitro propagation method produces numerous identical clones that precisely replicate the unique characteristics of 'Riptide', ensuring genetic stability and trait consistency across all propagated plants while enabling large-scale production
Data Source
AI summary
A new and distinct variety of Stokesia laevis plant named ‘Riptide’ with extended blooming of composite flowers having periwinkle-blue ray florets and purplish-blue disk florets just above the deep-green foliage of compact rounded plants from early summer until fall. The new plant is suitable for garden landscapes, in containers, or as a cut flower.