Dracaena Reflexa RDLANIVAR Variegation Stability

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Solution Overview

Problem

There is a need for a distinct cultivar of Dracaena reflexa that exhibits stable and unique foliage variegation characteristics, particularly under varying light conditions, which are not met by existing varieties.

Innovation Solution

The cultivar 'RDLANIVAR' of Dracaena reflexa, which originated as a natural mutation, exhibits distinctive golden yellow and dark green foliage striations that change with light levels, and is propagated through vegetative cuttings, maintaining its unique features across generations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing Dracaena reflexa varieties are used, then basic ornamental value is provided, but unique and stable foliage variegation characteristics under varying light conditions are not achieved

Engineering Contradiction:

Improveadaptability to varying light conditionsVSAvoidstability of foliage variegation

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies parameter changes by selecting and propagating a plant with specific genetic variations that result in stable variegation patterns. The cultivar 'RDLANIVAR' exhibits consistent golden yellow and dark green striping that maintains its characteristics across different light conditions, representing a change in the biological parameters of the plant to achieve both adaptability and reliability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention applies local quality through the specific variegation pattern where different portions of the leaf exhibit different colors and widths of striping. The central axial stripes are golden yellow while marginal stripes are dark green, creating localized quality variations that provide unique ornamental value while maintaining overall plant stability

Inventive Principle:

Principle #3Local quality

2Shape

If natural mutation is selected for unique variegation, then distinctive foliage characteristics are achieved, but propagation stability must be verified across generations

Engineering Contradiction:

Improvefoliage variegation patternVSAvoidgenetic stability across generations

Core Design Contradiction:

ShapeVSStability of the object's composition

Solution Approach 1:

The patent applies preliminary action by performing confidential testing and propagation assessments before commercial release. The inventor conducted multiple generations of vegetative propagation testing to verify that the unique variegation characteristics are stable and reproduce true to type, ensuring genetic stability before the cultivar was made available

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention applies copying through vegetative propagation by cuttings, where new plants are created as genetic copies of the parent plant. This asexual reproduction method ensures that the unique variegation pattern is replicated identically across generations, maintaining both the distinctive foliage characteristics and genetic stability

Inventive Principle:

Principle #26Copying

Data Source

PatentUSPP26786P3<i>Dracaena reflexa </i>plant named ‘RDLANIVAR’

Publication Date: 2016.05.31 DE LEEUW RENE

AI summary

‘RDLANIVAR’ is a new and distinctive variety of Dracaena reflexa which is characterized by distinctive foliage variegation pattern in combination with unique colors of the foliage, unlike other Dracaena reflexa cultivars known to the Inventor, as well as long narrow leaves. The new variety is a Dracaena, typically produced as an indoor ornamental plant.