Physocarpus Hoogi018 Compact Habit Breeding

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Solution Overview

Problem

Existing Physocarpus opulifolius cultivars lack a compact plant habit, which limits their landscape use in dense or space-constrained areas, and there is a need for new cultivars with distinct foliage colors and sizes.

Innovation Solution

Development of the 'Hoogi018' cultivar, a deciduous shrub with a very compact plant habit, gray-purple-red leaves, and small size, achieved through a breeding program and stabilized via asexual propagation by stem cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If existing Physocarpus opulifolius cultivars are used, then they provide standard growth characteristics, but they lack a compact plant habit which limits their landscape use in dense or space-constrained areas

Engineering Contradiction:

Improveplant habit compactnessVSAvoidlandscape use flexibility

Core Design Contradiction:

Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selectively breeding plants to modify growth rate and size parameters. The 'Hoogi018' cultivar was developed with a significantly reduced growth rate parameter, reaching only 40 cm height in four years compared to the standard 100 cm, creating a compact plant habit suitable for space-constrained landscapes while maintaining the species' adaptability

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If new cultivars with distinct foliage colors and sizes are developed, then landscape variety is improved, but breeding time and resource investment increase

Engineering Contradiction:

Improvefoliage color varietyVSAvoidbreeding program duration

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by conducting systematic breeding programs that pre-select for desired traits before full cultivation. The breeding program systematically evaluated 350 seedlings and selected 'Hoogi018' based on predetermined criteria for compact size and gray-purple-red foliage, establishing the cultivar's unique characteristics through preliminary selective breeding before commercial propagation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies color changes by selecting for and stabilizing unusual foliage pigmentation. The 'Hoogi018' cultivar exhibits gray-purple-red leaf coloration, a distinct trait that was deliberately selected during breeding and has been maintained through stable asexual propagation, providing unique landscape variety

Inventive Principle:

Principle #32Color changes

3Stability of the object's composition

If asexual propagation by stem cuttings is used, then cultivar stability is ensured, but propagation time and technical skill requirements increase

Engineering Contradiction:

Improvecultivar trait stabilityVSAvoidpropagation ease

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent applies copying by using asexual propagation through stem cuttings to create genetically identical copies of the selected plant. This method precisely replicates the unique traits of 'Hoogi018' (compact habit, gray-purple-red foliage) in successive generations, ensuring cultivar stability and true-to-type reproduction while establishing a reliable propagation system

Inventive Principle:

Principle #26Copying

Data Source

PatentUSPP28059P2<i>Physocarpus </i>plant named ‘Hoogi018’

Publication Date: 2017.05.30 HOOGENRAAD MARK SEBASTIAAN

AI summary

A new cultivar of Physocarpus opulifolius plant named, ‘Hoogi018’, that is characterized by its very compact plant habit; reaching 40 cm in height as a four year-old plant in the landscape and its small size leaves that are gray-purple-red in color.