Hydrangea Cultivar H213906 Stem Strength and Branching
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Solution Overview
Problem
Existing Hydrangea cultivars lack strong, sturdy stems and uniform, freely branching habits with large, attractive mophead-type inflorescences and good post-production longevity.
Innovation Solution
A new cultivar, 'H213906', resulting from a cross-pollination of proprietary Hydrangea macrophylla selections, exhibits an upright and spreading habit, vigorous growth, strong stems, and large dark pink mophead-type inflorescences with stable asexual reproduction by vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional Hydrangea cultivars are used, then they can be grown and reproduced, but they lack strong sturdy stems and uniform freely branching habits
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific genetic parameters that result in stronger stems and more uniform branching habits. The new cultivar 'H213906' exhibits these improved parameters through controlled cross-pollination and selection of parent plants with desirable traits, fundamentally changing the genetic parameters of the Hydrangea population.
2Shape
If existing Hydrangea cultivars are used, then they can produce flowers, but they lack large attractive mophead-type inflorescences with good postproduction longevity
Solution Approach 1:
The patent changes the genetic parameters of the Hydrangea cultivar to produce larger mophead-type inflorescences with extended postproduction longevity. Through selective breeding of parent plants and evaluation of progeny, the new cultivar 'H213906' achieves both larger flower heads and improved durability after production, resolving the contradiction between inflorescence size and longevity.
3Productivity
If Hydrangea plants are bred for vigorous growth and free branching, then they develop strong stems and uniform habits, but this requires controlled cross-pollination and selection processes
Solution Approach 1:
The patent applies preliminary action by pre-selecting parent plants with desirable traits (strong stems, uniform branching) before cross-pollination. The inventor carefully chose parent plants and conducted controlled cross-pollination in advance, then selected the best progeny ('H213906') from the initial batch, establishing a stable cultivar that reproduces true-to-type through vegetative propagation, thereby simplifying future production.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘H213906’, 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 mophead-type inflorescences with numerous dark pink-colored sterile flowers.