Hydrangea Cultivar H217901 Compact Habit Strong Stems
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Solution Overview
Problem
Current Hydrangea cultivars lack compact, freely-branching varieties with strong stems and long-lasting, double-type sterile flowers of specific color and form, which are stable across varying environmental conditions.
Innovation Solution
A new Hydrangea macrophylla cultivar 'H217901' is developed through cross-pollination, characterized by a compact, upright habit, vigorous growth, strong stems, early and uniform flowering, mophead-type inflorescences with light red-purple double flowers, and good post-production longevity, achieved through vegetative tip cutting propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional Hydrangea cultivars are used, then they may have large inflorescences, but they lack compact habit and strong sturdy stems
Solution Approach 1:
The patent applies local quality by developing a cultivar with differentiated structural characteristics: compact upright habit for overall plant shape, while simultaneously maintaining strong thick sturdy stems for structural support. This localized optimization of different plant parts resolves the contradiction between compact shape and stem strength.
2Duration of action of moving object
If single-type sterile flowers are produced, then the flower structure is simple, but the aesthetic value and postproduction longevity are reduced
Solution Approach 1:
The patent applies composite materials by creating double-type sterile flowers that combine multiple whorls of sepals with different characteristics (outer whorl and inner whorl with varying size, shape, and color). This composite floral structure enhances both aesthetic value and postproduction longevity without excessive complexity.
3Strength
If vigorous growth is achieved, then the plant has strong stems and branching, but the plant size may become too large
Solution Approach 1:
The patent applies parameter changes by optimizing the balance between growth rate and plant size. The cultivar exhibits vigorous growth with strong stems and free branching, but maintains a compact upright habit through controlled growth parameters, achieving the desired balance between strength and size.
4Shape
If uniform flowering is achieved, then the aesthetic appearance is improved, but the flowering period may be shortened
Solution Approach 1:
The patent applies segmentation by dividing the inflorescence into multiple components (mophead-type structure with numerous double-type sterile flowers arranged in outer and inner whorls). This segmented structure allows for uniform appearance while extending the effective flowering period through staged bloom patterns.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘H217901’, characterized by its compact, upright and rounded plant habit; vigorous growth habit and moderate growth rate; freely branching habit with strong, thick and sturdy stems; early, freely and uniformly flowering habit; mophead-type inflorescences with numerous double-type sterile flowers that are light red purple in color; and good postproduction longevity.