Sedum Cultivar Touchdown Breeze Breeding for Inflorescence Size
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Solution Overview
Problem
Current Sedum telephium cultivars lack desirable traits such as larger inflorescences, vibrant pink flowers, and improved habit, which are essential for nursery growth and aesthetic appeal.
Innovation Solution
The development of a new Sedum telephium cultivar, 'Touchdown Breeze', featuring pink flowers, blue-green leaves with purple tints, strong red stems, and a multiple crown, well-branched, low mounding habit, achieved through asexual propagation and micropropagation techniques, resulting in consistent and vigorous plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional Sedum telephium cultivars are used, then they have simpler growth habits, but they lack larger inflorescences and vibrant pink flowers
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific morphological parameters including pink flower color, blue-green leaf color with purple tints, strong red stems, and a low mounding habit. These parameter selections have been optimized through the breeding program to achieve the desired combination of large inflorescences (10-15 cm diameter) with compact plant form (15-20 cm height), resolving the contradiction between inflorescence size and growth habit complexity.
2Ease of manufacture
If Sedum 'Desert Blonde' is used, then it has creamy white flowers, but it lacks vibrant pink flowers desired for aesthetic appeal
Solution Approach 1:
The patent directly applies color changes by breeding for vibrant pink flowers (distinct from the creamy white of 'Desert Blonde') combined with blue-green leaves with purple tints and strong red stems. This color transformation has been achieved through selective breeding and is now fixed in the cultivar, providing both aesthetic appeal and nursery growth performance without the harmful aesthetic deficiency of pale or creamy flowers.
3Productivity
If Sedum 'Yellow Xenox' is used, then it has cream flowers and narrow habit, but it lacks pink flowers and wider habit for better nursery performance
Solution Approach 1:
The patent applies dimensionality change by transforming the plant habit from narrow (as in 'Yellow Xenox') to a wider, more spreading mounding form. The cultivar develops a low mounding habit (15-20 cm height) with broader spread, allowing plants to fill pots quickly and achieve better nursery productivity. This dimensional transformation in the horizontal plane complements the vertical compactness to create an optimal nursery-grown form.
4Stability of the object's composition
If asexual propagation by division is used, then it maintains genetic consistency, but it is limited in production scale
Solution Approach 1:
The patent applies segmentation by using tissue culture techniques that divide and multiply plant cells and tissues to produce multiple genetically identical plants from a single parent plant. This cellular-level segmentation and multiplication enables large-scale production while maintaining genetic consistency, overcoming the production scale limitations of traditional division methods. The tissue culture process segments the parent plant at the cellular level to generate numerous propagules simultaneously.
5Productivity
If tissue culture micropropagation is used, then it enables large-scale production, but it requires specialized techniques and facilities
Solution Approach 1:
The patent applies copying by using tissue culture to create exact genetic copies of the parent plant through cellular multiplication. This copying process produces numerous genetically identical plants that can be scaled up for commercial production. The technique creates faithful replicas of the desired cultivar characteristics, enabling large-scale propagation while maintaining genetic uniformity, though it does require specialized facilities and expertise.
Data Source
AI summary
A new and distinct hybrid of Sedum plant substantially as shown and described, with pink flowers in large inflorescences, blue green leaves with purple tints, strong red stems, orange brown carpels when the seed is developing, a multiple crown, well branched, low, mounding habit, and excellent vigor.