Hypericum Cultivar Ruihyh004c Compact Habit and Berry Traits

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Solution Overview

Problem

Existing Hypericum cultivars lack unique berry characteristics and sufficient resistance to Melampsora hypericorum, limiting their use in landscape and container plantings.

Innovation Solution

Development of the new cultivar 'Ruihyh004c' through controlled breeding, which exhibits a compact plant habit, creamy white ovate berries, and resistance to Melampsora hypericorum, achieved via asexual propagation by vegetative stem cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing Hypericum cultivars are used for landscape plantings, then general growth is maintained, but unique berry characteristics and resistance to Melampsora hypericorum are insufficient

Engineering Contradiction:

Improveresistance to Melampsora hypericorumVSAvoidunique berry characteristics

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by developing a new cultivar with specific genetic modifications that result in unique berry characteristics (creamy white color, ovate shape) and improved resistance to Melampsora hypericorum. The controlled breeding program between 'Ruihyd064A' and 'Jolly Hypearl' produced offspring with optimized parameters for both disease resistance and berry morphology, resolving the contradiction between reliability and adaptability.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If compact plant habit is achieved for container growing, then suitability for container plantings is improved, but plant size and growth vigor may be limited

Engineering Contradiction:

Improvesuitability for container growingVSAvoidplant height and spread

Core Design Contradiction:

Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The patent applies local quality by creating a cultivar with compact growth habit specifically optimized for container environments. The 'Ruihyh004c' cultivar exhibits controlled branching and reduced internode length, creating a dense, compact form that is ideally suited for container plantings while maintaining healthy vigor. This localized modification of growth parameters allows the plant to thrive in confined spaces without sacrificing overall health.

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If asexual propagation by vegetative stem cuttings is used, then stability and true-to-type reproduction are achieved, but propagation time and labor requirements increase

Engineering Contradiction:

Improvecharacteristic stability in successive generationsVSAvoidpropagation time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by establishing a propagated line through vegetative stem cuttings before commercial deployment. The inventor performed preliminary propagation in 2010 to establish stable, true-to-type plants that could be used for further multiplication and distribution. This preliminary establishment of the propagated line ensures genetic stability is achieved before large-scale production, reducing time losses in later stages.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP26240P2<i>Hypericum </i>plant named ‘Ruihyh004c’

Publication Date: 2015.12.15 DE GROOT HENK C A

AI summary

A new cultivar of Hypericum×inodorum, ‘Ruihyh004c’, that is characterized by its compact plant habit suitable for container growing, its medium sized berries that are creamy white in color and ovate in shape, and its medium sized light green sepals that are ovate in shape.