Hydrangea H217905 Compact Habit and Flower Density
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Solution Overview
Problem
Current Hydrangea macrophylla cultivars lack compact and freely-branching varieties with large, showy sterile flowers and good post-production longevity, which limits their ornamental value and adaptability in different environmental conditions.
Innovation Solution
A new cultivar, 'H217905', is developed through controlled breeding, characterized by upright and rounded growth habit, vigorous and rapid growth, strong stems, early and uniform flowering, mophead-type inflorescences with intense red-purple sterile flowers, and good post-production longevity, differing from parent selections in compactness and reaction to aluminum sulfate treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional Hydrangea macrophylla cultivars are used, then they have larger plant size, but they lack compactness and vigorous branching habit
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific growth habit parameters. The new cultivar 'H217905' exhibits a compact, rounded habit with vigorous branching, representing a deliberate selection of morphological parameters that differ from conventional cultivars. This breeding approach changes the plant's growth parameters to achieve the desired compact yet freely-branching form.
2Quantity of substance
If conventional Hydrangea macrophylla cultivars are used, then they have fewer sterile flowers per inflorescence, but they lack large, showy inflorescences with numerous sterile flowers
Solution Approach 1:
The patent changes the floral parameters by breeding for increased numbers of sterile flowers per inflorescence. The new cultivar produces large, showy mophead-type inflorescences with numerous intense red-purple sterile flowers, representing a significant change in both quantity and visual impact of the flowers compared to conventional cultivars.
3Duration of action of stationary object
If conventional Hydrangea macrophylla cultivars are used, then they have average postproduction longevity, but they lack good postproduction longevity
Solution Approach 1:
The patent improves the temporal parameter of postproduction longevity through selective breeding. The new cultivar demonstrates good postproduction longevity, meaning the flowers maintain their quality and visual appeal for an extended period after production, representing a change in the durability parameter compared to conventional cultivars.
4Adaptability or versatility
If conventional Hydrangea macrophylla cultivars are used, then they have limited adaptability to different environmental conditions, but they lack good adaptability
Solution Approach 1:
The patent enhances environmental adaptability through breeding, allowing the new cultivar to maintain its characteristic traits across varying environmental conditions. The plant shows good adaptability to different temperatures, light conditions, and cultural practices while maintaining stable phenotype expression.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named `H217905`, characterized by its upright and rounded plant habit; vigorous growth habit and rapid growth rate; freely branching habit with strong, thick and sturdy stems; early, freely and uniformly flowering habit; mophead-type inflorescences with numerous intense red purple-colored sterile flowers; and good postproduction longevity.