Pericallis DPRIMBLUBR Cultivar Compact Habit and Mildew Tolerance

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Solution Overview

Problem

There is a need for a new Pericallis cultivar that exhibits a compact and early flowering habit with tolerance to powdery mildew, as existing varieties may not meet these specific horticultural requirements effectively.

Innovation Solution

The cultivar 'DPRIMBLUBR' is developed through open pollination, characterized by a compact growth habit, early flowering, uniform flower arrangement, and tolerance to powdery mildew, with stable reproduction through vegetative cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing Pericallis varieties are used, then they may have larger flowers or later flowering, but they lack compact habit and tolerance to powdery mildew

Engineering Contradiction:

Improvetolerance to powdery mildewVSAvoidcompact habit

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selecting and breeding for specific phenotypic parameters including compact plant habit, early flowering time, uniform flower height, and powdery mildew tolerance. The cultivar 'DPRIMBLUBR' exhibits these modified parameters compared to existing varieties, achieving a new combination of traits that resolves the contradiction between reliability (disease tolerance) and adaptability (growth habit).

Inventive Principle:

Principle #35Parameter changes

2Speed

If existing Pericallis varieties are used, then they may have later flowering or less uniform flower arrangement, but they do not exhibit early flowering with all flowers at the same height

Engineering Contradiction:

Improveflowering timeVSAvoiduniform flower arrangement

Core Design Contradiction:

SpeedVSManufacturing precision

Solution Approach 1:

The patent simultaneously modifies multiple parameters including flowering time (earlier) and flower arrangement uniformity (all flowers at same height). This multi-parameter optimization resolves the contradiction between speed (flowering time) and manufacturing precision (uniform arrangement), achieving both early flowering and uniform flower presentation.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If existing Pericallis varieties are used, then they may have larger flowers, but they lack the violet blue with white center coloration and compact habit

Engineering Contradiction:

Improvecompact habitVSAvoidflower size and color

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The patent changes multiple parameters including plant habit (more compact), flower color (violet blue with white center), and flower size (smaller). This coordinated parameter modification resolves the contradiction between ease of operation (compact habit desirable for cultivation) and shape (flower characteristics), achieving both compact growth and distinctive flower appearance.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUSPP28895P3<i>Pericallis </i>plant named ‘DPRIMBLUBR’

Publication Date: 2018.01.23 DANZIGER

AI summary

A new and distinct Pericallis cultivar named ‘DPRIMBLUBR’ is disclosed, characterized by a very compact and mounded habit with dense branching, early flowering and tolerance for powdery mildew. Additionally all flowers are at the same height. The new variety is a Pericallis, normally produced as an outdoor garden or container plant.