Callistemon viminalis LC01 Breeding for Compact Habit and Flower Density

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Solution Overview

Problem

There is a need for a new and distinct perennial variety of Callistemon viminalis that exhibits improved compact and bushy habit, deep green foliage, and superior flower display, which are not adequately met by existing cultivars like 'Matthew Flinders' and 'Little John', particularly in terms of height, leaf size, and flower density.

Innovation Solution

The development of the 'LC01' variety, resulting from a controlled pollination between Callistemon viminalis 'x2003.1.1' and 'x2003.1.3', characterized by a short to medium height, erect to semi-erect shrub habit, and high flower density, achieved through asexual reproduction by division, maintaining stable distinguishing characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If existing cultivars like 'Matthew Flinders' and 'Little John' are used, then they provide ornamental value, but they exhibit taller height and lower flower density

Engineering Contradiction:

Improveflower densityVSAvoidheight

Core Design Contradiction:

Quantity of substanceVSLength of moving object

Solution Approach 1:

The patent applies parameter changes by selectively breeding plants with specific genetic traits to achieve desired physical characteristics. The controlled pollination between parent plants with different traits resulted in offspring with optimized height and flower density parameters, creating a new variety that simultaneously reduces height while increasing flower density compared to existing cultivars.

Inventive Principle:

Principle #35Parameter changes

2Shape

If existing cultivars are used, then they provide green foliage, but the foliage is not deep green and compact

Engineering Contradiction:

Improvecompact and bushy habitVSAvoidfoliage color consistency

Core Design Contradiction:

ShapeVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by selecting for specific localized traits in different parts of the plant. The breeding process targeted deep green color specifically in the foliage while simultaneously selecting for compact and bushy growth habit. This resulted in a variety where these desirable local qualities are consistently expressed throughout the plant structure.

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If asexual reproduction by division is used, then stable distinguishing characteristics are maintained, but propagation time and effort increase

Engineering Contradiction:

Improvecharacteristic stabilityVSAvoidpropagation time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by establishing stable, true-to-type plant varieties through controlled pollination and rigorous DUS testing before large-scale propagation. This preliminary selection and stabilization process ensures that subsequent asexual reproduction by division or cuttings will consistently produce plants with the desired characteristics, reducing the need for repeated selection and evaluation over time.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP25011P3Callistemon viminalis plant named `LC01`

Publication Date: 2014.10.28 NUFLORA INT

AI summary

‘LC01’ is a distinctive variety of Callistemon viminalis which is characterized by the combination of a short to medium height, large leaves, deep green foliage, large inflorescence, and stability and uniformity of traits through successive cycles of asexual propagation.