Hydrangea Hokomagrefip Bi-Colored Sepals

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Solution Overview

Problem

There is a need for a new cultivar of Hydrangea macrophylla that is suitable for container growing and exhibits bi-colored, sturdy sterile sepals.

Innovation Solution

The development of the new cultivar 'Hokomagrefip' through controlled breeding, which features mophead inflorescences with pink-red sterile sepals, dark green foliage, and strong stems, making it suitable for container growing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional Hydrangea varieties are used for container growing, then they may have adequate size, but they lack bi-colored, sturdy sterile sepals

Engineering Contradiction:

Improvesepal color uniformityVSAvoidsuitability for container growing

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by creating sepals with distinct bi-coloration patterns where different regions of the same sepal have different colors (pink-red and green areas). This localized color differentiation is achieved through controlled breeding to establish specific pigmentation characteristics in certain sepal regions while maintaining overall sepal structure and function.

Inventive Principle:

Principle #3Local quality

2Manufacturing precision

If Hydrangea varieties with bi-colored sepals are developed, then aesthetic appeal is improved, but stability of characteristics through propagation becomes challenging

Engineering Contradiction:

Improvesepal color consistencyVSAvoidtrait stability in successive generations

Core Design Contradiction:

Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The patent employs self-service through asexual propagation by stem cuttings, where the plant propagates itself without requiring external pollination or cross-breeding. This self-propagation method ensures that the bi-colored sepal characteristics are cloned exactly as they appear in the parent plant, maintaining genetic stability and trait consistency across successive generations without introducing variability.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If Hydrangea is bred for sturdy stems and compact growth, then container suitability is improved, but inflorescence size may be reduced

Engineering Contradiction:

Improvecontainer growing suitabilityVSAvoidinflorescence size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent applies parameter changes by optimizing multiple growth parameters simultaneously through controlled breeding: compact overall plant size and sturdy stem thickness are increased for container suitability, while inflorescence dimensions and sepal characteristics are independently optimized to maintain large, showy flower heads with prominent bi-colored sepals. This multi-parameter optimization allows the plant to meet container growing requirements without sacrificing floral display quality.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUSPP36580P3<i>Hydrangea </i>plant named ‘Hokomagrefip’

Publication Date: 2025.04.01 KOLSTER HLDG BV

AI summary

A new cultivar of Hydrangea macrophylla plant named ‘Hokomagrefip’ that is characterized by its mophead inflorescences with sterile sepals that are pink-red in color with markings of green, its sturdy sterile sepals, its abundant strong stems, and its dark green foliage.