Dianthus DCACR08-0 Cultivar Continuous Flowering via Spontaneous Mutation

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Solution Overview

Problem

There is a need for a new Dianthus hybrida cultivar that exhibits unique and stable characteristics suitable for both garden and container uses, with distinct flower colors and continuous flowering capabilities, which are not met by existing varieties.

Innovation Solution

The cultivar 'DCACR08-0' is a spontaneous mutation with stable traits, characterized by floriferous plants producing dark and bright pink-red-purple flowers with a white petal base, suitable for USDA zone 3, and continuous flowering from Spring through Fall, achieved through asexual reproduction by vegetative cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing Dianthus varieties are used, then basic flowering characteristics are maintained, but unique and stable characteristics suitable for both garden and container uses are not achieved

Engineering Contradiction:

Improvesuitability for both garden and container usesVSAvoidstable and unique characteristics

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent describes a spontaneous mutation that resulted in changed parameters including flower color (dark red-purple with white petal base), flowering duration (continuous from Spring through Fall), and plant habit (compact upright). These parameter changes created a new cultivar 'DCACR08-0' with stable unique characteristics that distinguishes it from existing varieties while maintaining reliability through true-to-type reproduction via vegetative cuttings

Inventive Principle:

Principle #35Parameter changes

2Duration of action of moving object

If commercial Dianthus varieties are used, then general flowering is achieved, but distinct flower colors and continuous flowering capabilities are not met

Engineering Contradiction:

Improvecontinuous flowering from Spring through FallVSAvoiddistinct and stable flower color

Core Design Contradiction:

Duration of action of moving objectVSReliability

Solution Approach 1:

The spontaneous mutation produced significant parameter changes including extended flowering duration (continuous from Spring through Fall compared to typical seasonal flowering) and distinct flower color (dark red-purple RHS 61A with white petal base). The mutation also produced semi-double blooms with 15-20 petals. These changed parameters were stabilized through asexual reproduction, ensuring reliable transmission of both the continuous flowering capability and distinct coloration

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Rather than attempting to extend the flowering season of existing varieties through environmental manipulation or hybridization programs, the invention discovered and selected a spontaneous mutation that naturally exhibited the desired continuous flowering trait. This inverted approach of selecting for naturally occurring mutations rather than engineering the trait produced a stable, reliable cultivar with distinct characteristics

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS20190021203P1Dianthus plant named 'DCACR08-0'

Publication Date: 2019.01.17 JONES STEVE

AI summary

A new and distinct Dianthus cultivar named ‘DCACR08-0’ is disclosed, characterized by continuous flowering on floriferous plants hardy to USDA Zone 3. Flowers are semi-double and bright, dark pink. The new variety is a Dianthus, typically produced as a garden or container plant.