Hydrangea H213904 Cultivar Stem Strength and Flower Size
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Solution Overview
Problem
There is a need for new Hydrangea cultivars with strong, sturdy stems, large inflorescences, attractive flower color, and good post-production longevity, as existing varieties may lack these characteristics or be sensitive to environmental conditions.
Innovation Solution
A new cultivar of Hydrangea macrophylla, 'H213904', developed through planned breeding, exhibiting upright and spreading growth, vigorous branching, strong stems, and large lacecap-type inflorescences with red-purple sterile flowers, which are stable and reproduce true to type via vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing Hydrangea varieties are used, then they may have basic flowering capability, but they lack strong sturdy stems, large inflorescences, attractive flower color, and good postproduction longevity
Solution Approach 1:
The patent applies parameter changes by selectively breeding plants to modify specific genetic parameters that control stem strength, inflorescence size, flower color, and longevity. Through controlled cross-pollination and selection of progeny with desired traits, the cultivar 'H213904' exhibits improved stem strength (parameter_id: 14) and extended postproduction longevity (parameter_id: 27) compared to parent plants, demonstrating how changing genetic parameters can simultaneously improve multiple quality attributes.
2Area of stationary object
If existing Hydrangea varieties are used, then they may produce flowers, but the inflorescences are not large enough and lack attractive flower color
Solution Approach 1:
The patent applies preliminary action by conducting planned breeding programs and controlled cross-pollinations in advance to develop cultivars with predetermined large inflorescence size and attractive flower color. The breeder performs preliminary selection of parent plants with desirable traits, executes controlled cross-pollination, and selects progeny exhibiting the desired large inflorescences (parameter_id: 6) and flower color, thereby preparing the cultivar 'H213904' with these enhanced characteristics before commercial production.
3Reliability
If existing Hydrangea varieties are used, then they may flower, but they are sensitive to environmental conditions and lack stable trait expression
Solution Approach 1:
The patent applies inversion by reversing the conventional approach: instead of selecting varieties that adapt to environmental conditions, the breeder develops cultivars with genetically fixed, stable traits that express consistently across varying environmental conditions. The cultivar 'H213904' exhibits this inverted approach by showing stable flower color, inflorescence size, and other characteristics regardless of environmental variations, thereby achieving high reliability (parameter_id: 27) through reduced environmental sensitivity.
4Strength
If new cultivars are developed through planned breeding, then stem strength and flower size improve, but the breeding program requires significant time and resources
Solution Approach 1:
The patent applies copying by using asexual reproduction methods such as vegetative cuttings to propagate the developed cultivar 'H213904'. Once the desired traits of strong stems and large flowers are achieved through time-consuming breeding, the successful cultivar is copied asexually to produce multiple identical plants, thereby avoiding the need to repeat the entire breeding process and significantly reducing the time loss (parameter_id: 25) for producing additional plants with the same improved characteristics.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘H213904’, characterized by its upright and somewhat outwardly spreading plant habit; vigorous growth habit; freely branching habit; strong and sturdy stems; freely and uniformly flowering habit; and lacecap-type inflorescences with large sterile flowers that are red purple in color.