Angelonia Loblu Compact Plant Breeding

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Solution Overview

Problem

Existing Angelonia plant cultivars lack compact and freely-flowering varieties with attractive flower coloration, and there is a need for improved garden performance under varying environmental conditions.

Innovation Solution

A new Angelonia hybrida cultivar, 'Loblu', was developed through controlled breeding in Dresden, Germany, characterized by a compact, upright, and freely branching habit with large violet-colored flowers, exhibiting improved flowering and garden performance compared to parent selections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing Angelonia plant cultivars are used, then they may have certain flower size or color, but they lack compact and freely-flowering varieties with attractive flower coloration

Engineering Contradiction:

Improveflowering habitVSAvoidplant habit

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The breeding program modified key parameters including plant height (reduced to 40-45 cm), internode length (reduced to 1-2 cm), and flowering frequency (increased to multiple batches per season) to achieve the desired compact yet freely-flowering habit

Inventive Principle:

Principle #35Parameter changes

2Length of stationary object

If plants are made more compact, then space efficiency improves, but flowering freedom and branch density may be reduced

Engineering Contradiction:

Improveplant heightVSAvoidflowering frequency

Core Design Contradiction:

Length of stationary objectVSProductivity

Solution Approach 1:

The plant structure was segmented into multiple lateral branches (8-10 per plant) with shorter internodes, creating a compact overall form while maintaining multiple flowering sites throughout the plant structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The plant achieves compactness in the vertical dimension (40-45 cm height) while compensating in the horizontal dimension through increased lateral branching (30 cm spread), maintaining flowering productivity across a different spatial configuration

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Productivity

If plants are made more freely branching, then flowering potential increases, but plant compactness may be reduced

Engineering Contradiction:

Improveflowering frequencyVSAvoidplant height

Core Design Contradiction:

ProductivityVSLength of stationary object

Solution Approach 1:

Different parts of the plant exhibit different growth characteristics: the main stem remains short (40-45 cm) while lateral branches are encouraged to develop (8-10 branches per plant, 30 cm spread), creating localized density variations that achieve both compactness and free flowering

Inventive Principle:

Principle #3Local quality

Data Source

PatentUSPP26236P2<i>Angelonia </i>plant named ‘Loblu’

Publication Date: 2015.12.15 ELSNER PAC JUNGPFLANZEN

AI summary

A new and distinct cultivar of Angelonia plant named ‘Loblu’ characterized by its compact, upright and outwardly slanting plant habit; freely branching habit; early and freely flowering habit; large violet-colored flowers; and good garden performance.