Campanula Emerald Cultivar Breeding via Preliminary Selection and Cloning

Solution Overview

Problem

There is a need for a new and distinct cultivar of Campanula glomerata that exhibits unique characteristics such as upright and compact plant habit, basal branching, freely flowering, and light purple-colored flowers, which differ from existing cultivars like Alba in flower color and plant size.

Innovation Solution

The cultivar 'Emerald' is developed through open-pollination of an unnamed Campanula glomerata selection, with stable reproduction via softwood cuttings, showcasing these distinct traits under varying environmental conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If open-pollination breeding is used to develop new Campanula cultivars, then genetic diversity and unique characteristics are achieved, but the stability and uniformity of traits across generations may be compromised

Engineering Contradiction:

Improveunique characteristicsVSAvoidtrait stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent performs preliminary selection of exceptional individuals from the open-pollinated progeny before formal cultivar establishment. The inventor selected a single outstanding plant from among many seedlings, evaluating its traits thoroughly before propagation. This preliminary selection ensures that only plants with stable, desirable characteristics are propagated, resolving the contradiction between genetic diversity and trait stability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses asexual reproduction via softwood cuttings to create identical copies of the selected plant. This cloning approach preserves the unique characteristics achieved through open-pollination while ensuring complete genetic uniformity and trait stability across all propagated plants, eliminating variation that would occur with seed propagation.

Inventive Principle:

Principle #26Copying

2Stability of the object's composition

If asexual reproduction via softwood cuttings is used, then genetic uniformity and trait stability are maintained, but genetic diversity and adaptability are reduced

Engineering Contradiction:

Improvegenetic uniformityVSAvoidgenetic diversity

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent performs preliminary selection of exceptional individuals from the open-pollinated progeny before formal cultivar establishment. The inventor selected a single outstanding plant from among many seedlings, evaluating its traits thoroughly before propagation. This preliminary selection ensures that only plants with stable, desirable characteristics are propagated, resolving the contradiction between genetic diversity and trait stability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses asexual reproduction via softwood cuttings to create identical copies of the selected plant. This cloning approach preserves the unique characteristics achieved through open-pollination while ensuring complete genetic uniformity and trait stability across all propagated plants, eliminating variation that would occur with seed propagation.

Inventive Principle:

Principle #26Copying

3Manufacturing precision

If selection from open-pollinated progeny is performed, then unique and distinct cultivar characteristics can be identified, but the time and resources required for evaluation increase

Engineering Contradiction:

Improvecultivar distinctnessVSAvoidevaluation time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary selection of exceptional individuals from the open-pollinated progeny before formal cultivar establishment. The inventor selected a single outstanding plant from among many seedlings, evaluating its traits thoroughly before propagation. This preliminary selection ensures that only plants with stable, desirable characteristics are propagated, resolving the contradiction between genetic diversity and trait stability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent focuses evaluation on specific key traits that define cultivar distinctness rather than assessing all possible characteristics. The inventor concentrated on measuring plant height, inflorescence characteristics, flower color, and branching patterns - the most important distinguishing features. This targeted approach to evaluation maintains high cultivar distinctness while reducing the time and resources required compared to comprehensive assessment of all traits.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUSPP18343P2Campanula plant named `Emerald`

Publication Date: 2007.12.25 FUTURE PLANTS LICENTIE

AI summary

A new and distinct cultivar of Campanula plant named ‘Emerald’, characterized by its upright and compact plant habit; basal branching habit; freely flowering habit; and light purple-colored flowers.