Callistemon viminalis CC19 Short Height Auburn Foliage

Solution Overview

Problem

There is a need for a new ornamental shrub variety of Callistemon viminalis that combines short height, fine textured foliage, and auburn-colored immature foliage, which is not currently met by existing cultivars like 'Captain Cook', 'Matthew Flinders', 'Little Silver', and 'Little Caroline', as they either lack the desired height, foliage texture, or immature foliage color.

Innovation Solution

The development of the Callistemon viminalis variety 'CC19', which results from open pollination of 'Captain Cook' and exhibits a unique combination of short height, fine textured foliage, and auburn-colored immature foliage, proven to be true to type through multiple cycles of vegetative asexual propagation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing cultivars like 'Captain Cook' are used, then they provide ornamental value, but they lack the desired combination of short height, fine textured foliage, and auburn immature foliage color

Engineering Contradiction:

Improveornamental profileVSAvoidfoliage texture and color characteristics

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by selecting for specific localized characteristics in the foliage - particularly the immature foliage color (auburn) and texture (fine) - while maintaining overall plant structure. This is achieved through open pollination selection where plants exhibiting the desired local foliage properties were identified and propagated, creating a cultivar with differentiated quality in specific attributes rather than uniform changes across all characteristics.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If open pollination breeding is used to create new varieties, then genetic diversity is increased, but the time required to develop and test new cultivars is extended

Engineering Contradiction:

Improvegenetic variationVSAvoidbreeding cycle duration

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent employs preliminary action through a systematic multi-stage selection process. Seedlings from open pollination were initially screened, then eight plants were selected for further testing in 2006, and finally one plant was selected as the final candidate in 2009 based on the combination of desired traits. This staged approach allows genetic diversity to be explored while managing the breeding timeline through progressive filtering of candidates.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The breeding process demonstrated dynamics through adaptive selection over time. The breeder maintained multiple candidate plants through successive generations, adjusting the selection criteria based on observed performance. Four successive cycles of vegetative asexual propagation were conducted to verify true-to-type characteristics, allowing the breeding program to dynamically respond to the development and expression of traits across generations.

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If strict selection criteria are applied to achieve specific foliage characteristics, then the desired ornamental traits are achieved, but the number of candidate plants is reduced

Engineering Contradiction:

Improvefoliage characteristicsVSAvoidnumber of candidate plants

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent applies local quality by selecting for specific localized characteristics in the foliage - particularly the immature foliage color (auburn) and texture (fine) - while maintaining overall plant structure. This is achieved through open pollination selection where plants exhibiting the desired local foliage properties were identified and propagated, creating a cultivar with differentiated quality in specific attributes rather than uniform changes across all characteristics.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUSPP25023P3Callistemon viminalis plant named `CC19`

Publication Date: 2014.11.04 LAYT TODD

AI summary

‘CC19’ is a distinctive variety of Callistemon viminalis which is characterized by the combination of a short height, finer textured foliage, auburn color of immature foliage and stability and uniformity of traits through successive cycles of asexual propagation.