Phlox Jade Cultivar White Flowers Green Tips Mildew Resistance

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Solution Overview

Problem

Existing Phlox paniculata cultivars lack distinct features such as pure white flowers with green tips, compact habit, and high mildew resistance, making them less desirable for landscape use.

Innovation Solution

The development of the 'Jade' cultivar, characterized by pure white flowers with green tips, large diameter, compact and sturdy stems, and high mildew resistance, achieved through asexual reproduction by stem cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing Phlox paniculata cultivars are used, then they are available for landscape use, but they lack distinct features such as pure white flowers with green tips, compact habit, and high mildew resistance

Engineering Contradiction:

Improvemildew resistanceVSAvoiddistinct features

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selecting and propagating plants with specific genetic traits that result in pure white flowers with green tips, compact growth habit, and high mildew resistance. Through asexual reproduction by stem cuttings, these parameter combinations are stabilized and reproduced true to type, creating a cultivar that simultaneously achieves distinct visual features and enhanced disease resistance

Inventive Principle:

Principle #35Parameter changes

2Illumination intensity

If Phlox cultivars with pure white flowers are selected, then visual appeal is improved, but mildew resistance and compact habit may be compromised

Engineering Contradiction:

Improveflower color visibilityVSAvoidmildew resistance

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

The patent applies local quality by focusing on specific local traits within the Phlox plant - particularly the flower coloration (pure white with green tips) and foliage characteristics (mildew resistance). Through careful selection and propagation, these local qualities are enhanced and stabilized, allowing the cultivar to exhibit superior flower visibility and disease resistance simultaneously

Inventive Principle:

Principle #3Local quality

3Volume of moving object

If Phlox cultivars with compact habit are selected, then landscape suitability is improved, but flower size and stem strength may be reduced

Engineering Contradiction:

Improveplant sizeVSAvoidstem strength

Core Design Contradiction:

Volume of moving objectVSStrength

Solution Approach 1:

The patent applies parameter changes by selecting plants with a specific combination of compact overall size and strong stem characteristics. Through asexual reproduction, this parameter combination is stabilized, producing a cultivar that maintains a compact 30-45 cm height suitable for landscape use while developing sturdy stems that support the large flowers and prevent lodging

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUSPP21878P2Phlox plant named `Jade`

Publication Date: 2011.04.19 VERSCHOOR JAN

AI summary

A new cultivar of Phlox, ‘Jade’, characterized by its large flowers that are pure white in color with green tips at apex of each petal, its healthy foliage with a high degree of mildew resistance, and its compact plant habit with sturdy stems.