Sedum Cherry Tart Red Foliage Retention
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Solution Overview
Problem
Existing Sedum cultivars lack a compact, mound-shaped habit with dark cherry red foliage retention throughout the growing season and sufficient crown formation, as well as distinctive inflorescences and leaf characteristics.
Innovation Solution
The development of Sedum 'Cherry Tart', a hybrid cultivar with deep red, ovate, thick leaves and dense, dark pink inflorescences, achieved through controlled crossing and asexual reproduction, exhibiting stability in propagation and unique characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional Sedum cultivars are used, then they may have groundcover habit, but they lack dark cherry red foliage retention throughout the growing season
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific genetic traits that control foliage color stability. The 'Cherry Tart' cultivar was developed through controlled crossing and selection to fix the dark cherry red foliage color gene, ensuring it remains stable throughout the growing season without fading to green, thus resolving the contradiction between color retention stability and variety availability.
2Shape
If conventional Sedum cultivars are used, then they may be groundcover type, but they lack compact mounded habit without flopping open
Solution Approach 1:
The patent applies local quality by developing specific regional characteristics in different parts of the plant. The 'Cherry Tart' cultivar exhibits a compact mounded habit with dense foliage distribution throughout the plant structure, preventing the center from flopping open while maintaining overall growth vigor. This localized structural quality distinguishes it from conventional cultivars.
3Quantity of substance
If conventional Sedum cultivars are used, then they may produce inflorescences, but they lack numerous large inflorescences with distinctive characteristics
Solution Approach 1:
The patent applies preliminary action by conducting controlled crosses and selecting progeny with desired inflorescence traits before full-scale propagation. The breeding program preliminarily identified and selected the 'Cherry Tart' plant in September 2010 from seedlings, then propagated it asexually to ensure stable reproduction of the numerous large dark pink inflorescences, thus achieving high inflorescence quantity and size without excessive breeding complexity.
4Shape
If conventional Sedum cultivars are used, then they may have serrated leaves, but they lack thick ovate leaves with slightly serrated margins
Solution Approach 1:
The patent applies copying by using asexual propagation methods (tip stem cuttings) to create genetically identical copies of the selected 'Cherry Tart' plant. This ensures that the distinctive thick ovate leaf shape with slightly serrated margins is precisely replicated in all propagated plants, maintaining manufacturing precision and propagation consistency without the variability associated with seed propagation.
Data Source
AI summary
A new cultivar of Sedum plant named ‘Cherry Tart’ characterized by its foliage that is red in color with the red coloration retained without fading in spring, summer and fall, its leaves that are thick, ovate in shape, and with only slightly serrated, its production of 30 to 40 crowns the first year after vernalization, its numerous large inflorescences with flowers that are dark pink in color.