Polygonatum 'Double Stuff' Cultivar Propagation via Tissue Culture

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Solution Overview

Problem

There is a need for a stable and distinct cultivar of Polygonatum odoratum var. pluriflorum that exhibits desirable characteristics such as variegated foliage and red stems, which are not currently met by existing varieties.

Innovation Solution

The development of a new cultivar, 'Double Stuff', which is propagated asexually and characterized by broad white variegated margins on its foliage and red stems, demonstrating excellent vigor and consistent traits through division and tissue culture techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If asexual propagation methods (division and tissue culture) are used to reproduce the cultivar, then consistent characteristics and traits are maintained across progeny, but environmental adaptability and disease resistance remain untested and unverified

Engineering Contradiction:

Improveconsistency of characteristicsVSAvoidenvironmental adaptability

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent employs asexual propagation through division and tissue culture to create exact genetic copies of the original plant. This ensures that all progeny maintain identical characteristics (broad white variegated margins, red stems, excellent vigor) without genetic variation, thereby preserving the unique aesthetic and growth traits of the 'Double Stuff' cultivar across multiple generations.

Inventive Principle:

Principle #26Copying

2Reliability

If the cultivar is propagated through tissue culture using terminal shoots, then the distinctive features (variegated foliage, red stems) are established and transmitted reliably, but the propagation process requires specialized micropropagation techniques and facilities

Engineering Contradiction:

Improvetransmission of characteristicsVSAvoidpropagation technique complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent utilizes tissue culture as an intermediary propagation method that bridges the gap between traditional seed propagation (which would cause genetic variation) and simple division (which may not reliably transmit all characteristics). The tissue culture process acts as a controlled mediator that ensures faithful transmission of the cultivar's distinctive features while allowing for规模化 production.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the plant is grown in full shade conditions, then the variegated foliage and red stem characteristics are maintained, but the plant's performance under different lighting and environmental conditions remains unknown

Engineering Contradiction:

Improvemaintenance of characteristicsVSAvoidenvironmental flexibility

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent establishes the cultivar's characteristics under controlled full shade conditions as a baseline reference point before environmental testing is conducted. This preliminary characterization under specific conditions allows for accurate documentation of the plant's typical appearance and growth habits, which serves as a comparison standard for future environmental adaptability studies.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20090038043P1Polygonatum plant named 'double stuff'

Publication Date: 2009.02.05 LAMACK WILLIAM FRANCIS

AI summary

A new and distinct Polygonatum plant characterized by foliage with a broad white variegated margin, red stems, and excellent vigor.