Hydrangea HBA215910 Breeding Strong Stems Large Inflorescences
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Solution Overview
Problem
Existing Hydrangea cultivars lack strong, sturdy stems and large inflorescences with attractive flower color and good post-production longevity, which are essential for a visually appealing and long-lasting mophead-type Hydrangea.
Innovation Solution
A new cultivar, Hydrangea macrophylla 'HBA215910', developed through planned breeding, featuring upright and rounded growth habit, vigorous growth rate, freely branching with strong stems, and mophead-type inflorescences with dark red-purple colored sterile flowers, exhibiting good post-production longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing Hydrangea cultivars are used, then the plant can be grown with standard characteristics, but the stems are not strong and sturdy enough and the inflorescences are not large
Solution Approach 1:
The patent applies parameter changes by selecting and breeding Hydrangea plants with specific genetic parameters that result in stronger stems and larger inflorescences. The cultivar 'HBA215910' was developed through controlled cross-pollination and selection processes that optimized structural parameters (stem strength) and reproductive parameters (inflorescence size) simultaneously, resolving the contradiction between structural integrity and productivity.
2Reliability
If existing Hydrangea cultivars are used, then the plant can be grown with standard characteristics, but the flower color is not attractive and post-production longevity is poor
Solution Approach 1:
The patent utilizes parameter changes in the breeding program to simultaneously improve flower color attractiveness and post-production longevity. The selective breeding process identified and fixed genetic parameters that control both aesthetic qualities (flower color) and durability (longevity), achieving both improvements without compromise in the new cultivar 'HBA215910'.
3Stability of the object's composition
If the new Hydrangea plant is reproduced asexually by vegetative cuttings, then the unique features are stable and true-to-type, but the reproduction process requires controlled environment
Solution Approach 1:
The patent applies the self-service principle through asexual reproduction by vegetative cuttings, where the plant propagates itself true-to-type without requiring sexual reproduction or complex breeding processes. The controlled environment requirement is minimized because vegetative propagation maintains genetic stability while being relatively simple to implement compared to controlled cross-pollination programs.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘HBA215910’, characterized by its upright and rounded plant habit; vigorous growth habit; rapid growth rate; freely branching habit with strong, thick and sturdy stems; freely and uniformly flowering habit; mophead-type inflorescences with numerous dark red purple-colored sterile flowers with green-colored sectors; when plants are “blued”, sterile flowers are light purple violet in color with greyed red-colored sectors; and good postproduction longevity.