Lavatera Duet cultivar asexual reproduction trait stability

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Solution Overview

Problem

There is a need for new Lavatera plants with unique flower coloration that can exhibit stable and reproducible traits across various environmental conditions and cultural practices, while maintaining good garden performance and winter hardiness.

Innovation Solution

The development of a new Lavatera hybrida cultivar, 'Duet', resulting from a cross-pollination between Lavatera hybrida 'White Angel' and Lavatera hybrida 'Summer Kisses', which exhibits a vigorous, freely branching habit with large, light red purple, lighter red purple, or white flowers, and demonstrates good garden performance and winter hardiness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a new Lavatera cultivar is developed through cross-pollination to achieve unique flower coloration, then flower color variety is improved, but trait stability and reproducibility across generations may worsen

Engineering Contradiction:

Improveflower color varietyVSAvoidtrait stability

Core Design Contradiction:

Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The patent employs asexual reproduction through softwood cuttings to create exact genetic copies of the selected plant, ensuring that the unique flower coloration traits are replicated identically across generations without the variability introduced by sexual reproduction

Inventive Principle:

Principle #26Copying

2Adaptability or versatility

If environmental conditions vary to test plant adaptability, then adaptability assessment is improved, but phenotypic consistency may worsen

Engineering Contradiction:

Improveadaptability assessmentVSAvoidphenotypic consistency

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

Instead of allowing environmental variation to create phenotypic diversity, the patent inverts the approach by using genetically identical plants produced through asexual reproduction, ensuring that any phenotypic differences observed are due to environmental factors rather than genetic variation

Inventive Principle:

Principle #13The other way round (Inversion)

3Productivity

If extensive breeding programs are conducted to develop new cultivars, then cultivar diversity is improved, but development time and complexity may worsen

Engineering Contradiction:

Improvecultivar diversityVSAvoiddevelopment time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent performs preliminary selection of plants with desired traits through controlled cross-pollination and careful observation, then immediately propagates the selected plant asexually to fix the traits, avoiding lengthy multi-generational breeding programs

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP31348P2<i>Lavatera </i>plant named ‘Duet’

Publication Date: 2020.01.14 FUTURE PLANTS LICENTIE

AI summary

A new and distinct cultivar of Lavatera plant named ‘Duet’, characterized by its upright and somewhat outwardly spreading plant habit; vigorous growth habit; freely branching habit; freely flowering habit; large rotate flowers that are light red purple, lighter red purple or white in color; and good garden performance and winter hardiness.