Sedum Chocolate Cherry Cultivar Breeding
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Solution Overview
Problem
There is a need for new Sedum plant cultivars with strong, healthy, and freely-flowering characteristics, attractive leaves, and flowers that differ from existing varieties in terms of leaf and flower color, and exhibit good garden performance under varying environmental conditions.
Innovation Solution
The development of Sedum telephium 'Chocolate Cherry', resulting from a planned breeding program, which features a broadly upright habit, glossy dark greyed purple leaves, numerous light red purple flowers, and good garden performance, distinguished by its unique leaf and flower colors compared to other Sedum telephium cultivars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Sedum telephium cultivars are used, then the plants have known characteristics, but they lack unique leaf and flower colors and strong garden performance
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific color parameters (leaf color: dark greyed purple; flower color: light red purple) to create a cultivar with unique characteristics that differ from existing varieties while maintaining strong garden performance and adaptability
2Adaptability or versatility
If new cultivars are bred through open-pollination, then genetic diversity is increased, but the stability of traits across generations may be compromised
Solution Approach 1:
The patent applies preliminary action by conducting controlled open-pollination in a nursery setting before the traits are fully expressed, allowing the inventor to select and identify stable trait combinations early in the breeding process. The preliminary selection of the female parent ('Karfunkelstein') and unknown male parent was done to establish a foundation for stable trait inheritance.
Solution Approach 2:
The patent applies feedback by observing the progeny plants and selecting only those that demonstrate stable expression of the desired traits (dark greyed purple leaves, light red purple flowers, broadly upright habit) across multiple generations, ensuring that only genetically stable individuals are retained for further propagation
3Stability of the object's composition
If asexual reproduction is used to propagate the new cultivar, then true-to-type reproduction is achieved, but the process requires controlled environment and time
Solution Approach 1:
The patent applies self-service by using asexual reproduction methods (cuttings and divisions) that allow the plant to reproduce true-to-type without requiring sexual reproduction or complex breeding processes. The plant's own vegetative structures are used to create new plants that inherit the stable genetic traits, eliminating the need for controlled pollination or seed production.
Data Source
AI summary
A new and distinct cultivar of Sedum plant named ‘Chocolate Cherry’, characterized by its broadly upright plant habit; basally branching habit; glossy dark greyed purple-colored leaves; numerous light red purple-colored flowers; good garden performance.