Hydrangea H211904 Cultivar Breeding for Stem Strength and Inflorescence Size
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Solution Overview
Problem
Existing Hydrangea macrophylla cultivars lack vigorous growth, strong stems, and large inflorescences with desirable flower colors, and have limited post-production longevity and disease resistance.
Innovation Solution
A new cultivar 'H211904' was developed through planned breeding, combining traits of strong and sturdy stems, large inflorescences with white and red-purple sterile flowers, and continuous flowering habit, achieved through cross-pollination and asexual reproduction by vegetative cuttings, resulting in a more vigorous and disease-resistant plant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional Hydrangea macrophylla cultivars are used, then basic flowering function is maintained, but growth vigor is weak and stems are not sturdy
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific genetic parameters that result in stronger stems and more vigorous growth. The new cultivar 'H211904' exhibits increased stem thickness, greater structural strength, and enhanced growth rate compared to conventional cultivars, achieved through controlled cross-pollination and selection of parent plants with desirable traits.
Solution Approach 2:
The patent employs composite materials principles by combining genetic traits from two different parent selections through cross-pollination. The resulting hybrid cultivar integrates beneficial characteristics from both parents, including stem strength, growth vigor, and flowering properties, creating a composite genetic structure that outperforms either parent alone.
2Area of moving object
If conventional Hydrangea macrophylla cultivars are used, then basic inflorescence production is achieved, but inflorescence size is small and flower color is less attractive
Solution Approach 1:
The patent applies parameter changes by breeding for specific floral parameters including increased inflorescence diameter, greater flower density, and enhanced color saturation. The new cultivar produces significantly larger inflorescences with more vivid red-purple margins on sterile flowers compared to conventional cultivars, achieved through selective breeding and environmental control during flowering.
Solution Approach 2:
The patent applies local quality principles by enhancing specific local characteristics of the inflorescence, particularly the red-purple margins on sterile flowers. This localized color enhancement creates a more attractive appearance without compromising overall plant health or structural integrity.
3Duration of action of stationary object
If conventional Hydrangea macrophylla cultivars are used, then basic flowering is achieved, but postproduction longevity is limited and disease resistance is poor
Solution Approach 1:
The patent applies beforehand cushioning by breeding for inherent disease resistance and extended longevity traits before the plants are marketed. The new cultivar 'H211904' was selected and propagated with these built-in advantages, providing consumers with plants that have pre-established resistance to common diseases and extended postproduction flower longevity without requiring additional chemical treatments or care interventions.
Solution Approach 2:
The patent counters the disposable nature of conventional Hydrangeas by breeding for longevity, effectively transforming a short-lived product into a more持久 (lasting) one. The new cultivar maintains flower quality and structural integrity for extended periods after production, reducing waste and improving value.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘H211904’, characterized by its upright and somewhat outwardly spreading plant habit; vigorous growth habit; strong and sturdy stems; freely flowering habit; and large inflorescences with numerous white-colored sterile flowers with red purple-colored margins.