Echinacea Flame Thrower Cultivar Breeding for Red-Orange Bicolor Florets
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Solution Overview
Problem
Existing Echinacea cultivars lack distinct red-orange flower colors, strong reflexed ray florets, and early bloom times, along with vigorous growth habits, which are desirable traits in ornamental plants.
Innovation Solution
A new Echinacea cultivar named 'Flame Thrower' is developed through a breeding program combining Echinacea paradoxa and Echinacea purpurea 'Ruby Giant', featuring bicolor orange and red ray florets, dark cones, free flowering, well-branched stems, and early bloom times, achieved through asexual propagation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional Echinacea cultivars are used, then existing flower colors (red purple or yellow) are maintained, but distinct red-orange flower colors are not achieved
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific pigment compositions to achieve red-orange flower colors. The breeding program selected for plants containing both anthocyanin pigments (for red/purple hues) and carotenoid pigments (for orange hues), creating a new color parameter combination not present in parent cultivars.
Solution Approach 2:
The patent creates composite pigmentation in the flower petals by combining different pigment types (anthocyanins and carotenoids) that work together to produce the red-orange color. This composite approach merges the color properties of different biochemical compounds to achieve the desired novel flower color.
2Temperature
If Echinacea paradoxa is used as a parent, then yellow flowers are produced, but strong reflexed ray florets are achieved
Solution Approach 1:
The patent applies local quality by selecting for specific traits in different parts of the plant. The ray florets were selected to have moderate reflex (a specific local shape characteristic) while maintaining the desired red-orange coloration, creating a differentiated quality profile across different floral components.
3Loss of time
If late bloom time cultivars are used, then longer growing season is achieved, but early bloom time is not realized
Solution Approach 1:
The patent applies preliminary action by selecting and breeding for early bloom time as a primary trait in the fourth generation of the breeding program. The early blooming characteristic was established through selective breeding before the plants were released as a cultivar, allowing the trait to be fixed and transmitted to subsequent generations.
4Stability of the object's composition
If single-color ray florets are used, then color uniformity is maintained, but bicolor orange and red ray florets are not achieved
Solution Approach 1:
The patent applies parameter changes by introducing variation in the color parameter along the ray floret structure. The bicolor effect is achieved by having different pigment compositions in different regions of the same floret, creating a controlled color gradient from orange to red rather than uniform coloration.
Data Source
AI summary
A new and distinct Echinacea plant named ‘Flame Thrower’ characterized by medium large bicolor orange and red ray florets, dark cones, free flowering, well-branched flower stalks, early bloom time, and excellent vigor.