Cotinus Cotsidh5 Cultivar Tissue Culture Propagation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

There is a need for a new cultivar of Cotinus coggygria that exhibits unique characteristics such as compact growth habit, small-sized foliage, and purple foliage color, which are not adequately represented in existing cultivars like 'Royal Purple' and 'Young Lady'.

Innovation Solution

The development of a new cultivar, 'Cotsidh5', which arose as a chance seedling and has been stabilized through asexual propagation by tissue culture, showcasing compact growth, purple foliage, and distinct morphological traits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional propagation methods are used for Cotinus cultivars, then genetic variability may occur, but asexual propagation by tissue culture ensures stable and true-to-type reproduction

Engineering Contradiction:

Improvereproduction stabilityVSAvoidpropagation method complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The tissue culture method allows the plant to propagate itself through cellular division and differentiation in a controlled medium, eliminating the need for manual grafting or cutting techniques while ensuring genetic fidelity

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The mechanical process of traditional propagation (cutting, grafting) is replaced by a biochemical system where plant hormones and nutrients in the culture medium direct cellular development, providing more consistent and reliable results

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Shape

If existing cultivars like 'Royal Purple' are used, then purple foliage color is achieved, but the plant habit is much less compact

Engineering Contradiction:

Improveplant compactnessVSAvoidfoliage coverage area

Core Design Contradiction:

ShapeVSArea of stationary object

Solution Approach 1:

The cultivar exhibits different growth characteristics in different parts of the plant - the central growing points produce compact internodes and dense branching, while the foliage maintains adequate surface area for photosynthesis, creating a balanced compact form

Inventive Principle:

Principle #3Local quality

3Shape

If existing cultivars like 'Young Lady' are used, then compact growth habit is achieved, but the foliage color is green instead of purple

Engineering Contradiction:

Improvegrowth compactnessVSAvoidaesthetic value

Core Design Contradiction:

ShapeVSEase of manufacture

Solution Approach 1:

The cultivar maintains the compact growth habit of 'Young Lady' while introducing purple pigmentation through anthocyanin production in the foliage, combining the aesthetic benefits of both parent cultivars

Inventive Principle:

Principle #32Color changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The cultivar 'Cotsidh5' offers a unique combination of compact growth, purple foliage, and stable propagation, making it a distinct landscape plant option with no observed susceptibility to diseases or pests, suitable for zones with cold hardiness up to USDA Zone 4.

Implementation Method 1

Asexual propagation of the new cultivar was first accomplished under the direction of the inventor by tissue culture of meristematic tissue in July of 2011

Methodology Applied

Scientific EffectTissue culture:

Implementation Method 2

asexual propagation by tissue culture has determined that the characteristics of the new cultivar are stable and are reproduced true to type in successive generations

Methodology Applied

Scientific EffectCellular division:

Data Source

PatentUSPP30328P3<i>Cotinus </i>plant named ‘Cotsidh5’

Publication Date: 2019.04.02 SIDHU GURJIT

AI summary

A new cultivar of Cotinus coggygria, ‘Cotsidh5’, that is characterized by its new foliage that is very small in size before maturing in 2 to 3 weeks, its purple foliage, and its very compact growth habit.