Ptilotus Plant Compact Habit and Pathogen Tolerance

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Solution Overview

Problem

Current Ptilotus cultivars lack compact and freely basal-branching varieties with strong stems and attractive flowers, as well as adequate pathogen tolerance.

Innovation Solution

A new cultivar, 'Platinum Wallaby', resulting from a planned breeding program, exhibits a compact, upright growth habit, extensive basal branching, small leaves, and silvery purple flowers, with improved pathogen tolerance compared to its parents and similar varieties like 'Joey'.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional Ptilotus cultivars are used, then they have larger plant size and less branching, but they lack compactness and adequate pathogen tolerance

Engineering Contradiction:
Improvepathogen toleranceVSAvoidplant habit compactness
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The breeding program modified genetic parameters through controlled cross-pollination to achieve both compact plant habit and pathogen tolerance. The new cultivar 'Platinum Wallaby' exhibits a compact mounded form with extensive basal branching while demonstrating superior tolerance to Pythium and Phytophthora compared to parent selections.

Inventive Principle:
Principle #35Parameter changes

2Volume of moving object

If Ptilotus cultivars are bred for compactness, then plant size is reduced, but basal branching may be limited

Engineering Contradiction:
Improveplant sizeVSAvoidbasal branching capacity
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The cultivar exhibits differential growth characteristics where basal branching is extensively developed while overall plant size remains compact. The plant produces numerous basal branches that are well-spaced and vigorous, creating a mounded form that combines compactness with high branching capacity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUSPP20785P2Ptilotus plant named `Platinum Wallaby`
Publication Date: 2010.02.23 AMERINOVA PROPERTIES

AI summary

A new and distinct cultivar of Ptilotus plant named ‘Platinum Wallaby’, characterized by its compact, upright and mounded plant habit; freely basal-branching habit; small leaves; freely flowering habit; and silvery purple-colored flowers.