Hydrangea Bountiful Bouquets Remontant Flowering and Mildew Resistance

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Solution Overview

Problem

Current Hydrangea macrophylla cultivars lack a combination of traits such as remontant flowering, compact growth habit, specific flower and foliage colors, and resistance to powdery mildew, which 'Bountiful Bouquets' uniquely possesses.

Innovation Solution

The cultivar 'Bountiful Bouquets' is developed through controlled cross-pollination of Hydrangea macrophylla 'Mathilda Gutges' and 'David Ramsey', exhibiting remontant flowering, medium pink or blue mophead inflorescences, compact rounded growth habit, matte dark green foliage, and moderate resistance to powdery mildew, distinguishing it from other varieties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If Hydrangea macrophylla cultivars are selected for remontant flowering and compact growth habit, then flowering duration and space efficiency are improved, but resistance to powdery mildew may be compromised

Engineering Contradiction:

Improveflowering durationVSAvoiddisease resistance

Core Design Contradiction:

Duration of action of moving objectVSReliability

Solution Approach 1:

The patent applies parameter changes by selecting and breeding cultivars with specific genetic parameters that simultaneously confer remontant flowering, compact growth habit, and powdery mildew resistance. The controlled cross-pollination process modifies genetic parameters to achieve the desired combination of traits that were previously conflicting.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If Hydrangea macrophylla cultivars are bred for improved leaf and flower characteristics, then aesthetic quality is improved, but growth habit may become less compact

Engineering Contradiction:

Improveflower and leaf qualityVSAvoidgrowth habit

Core Design Contradiction:

Manufacturing precisionVSShape

Solution Approach 1:

The patent applies local quality by developing cultivars where specific regions of the plant exhibit optimized characteristics - the inflorescences have improved flower and leaf quality while the overall growth habit remains compact and rounded. This localized optimization allows different parts of the plant to fulfill their specific functional requirements.

Inventive Principle:

Principle #3Local quality

3Quantity of substance

If Hydrangea macrophylla cultivars are selected for larger inflorescences, then flower size is improved, but stem strength may be insufficient to hold inflorescences upright

Engineering Contradiction:

Improveinflorescence sizeVSAvoidstem strength

Core Design Contradiction:

Quantity of substanceVSStrength

Solution Approach 1:

The patent applies spheroidality by selecting for a compact, rounded growth habit that naturally distributes the weight of larger inflorescences more effectively. The spherical or rounded plant architecture provides better structural support compared to elongated growth forms, allowing larger flowers to be held upright without compromising stem strength.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUSPP26182P3<i>Hydrangea macrophylla </i>plant named ‘Bountiful Bouquets’

Publication Date: 2015.12.01 PLANT INTRODUCTIONS

AI summary

A new and distinct cultivar of Hydrangea macrophylla plant named ‘Bountiful Bouquets’, characterized by its remontant (reblooming) trait, flowering on old wood and new growth of the season; medium pink mophead inflorescences or medium blue inflorescences in non-aluminum or aluminum based media, respectively; compact, rounded growth habit; strong stems that hold the inflorescences upright; matte, dark green foliage; and moderate resistance to powdery mildew.