Juniperus Newbold Hybrid Cultivar Blue Foliage Disease Resistance

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Solution Overview

Problem

There is a need for a new Juniperus hybrid cultivar that exhibits distinct characteristics such as blue foliage coloration, unique spatial spread, broad spreading habit, and enhanced resistance to disease and foliar damage, which are not readily available in existing Juniperus species like Juniperus virginiana and Juniperus chinensis.

Innovation Solution

The cultivar 'NEWBOLD', an inter-specific cross between Juniperus virginiana and Juniperus chinensis, displays a blue color cast to its foliage, a more open and symmetrical canopy, and improved disease resistance, achieved through vegetative reproduction and observed under varying environmental conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If Juniperus virginiana and Juniperus chinensis are used as parent varieties, then the hybrid cultivar exhibits blue foliage coloration and unique spatial spread, but the parent varieties themselves lack these combined characteristics

Engineering Contradiction:

Improvespatial spread of foliageVSAvoidavailability of distinct characteristics in existing species

Core Design Contradiction:

ShapeVSAdaptability or versatility

Solution Approach 1:

The patent combines two distinct Juniperus species (Juniperus virginiana and Juniperus chinensis) through controlled hybridization to create a new cultivar that exhibits merged characteristics: the blue coloration from one parent and the spatial spread patterns from the other, achieving a combination of traits not available in either parent species alone

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If the foliage spacing is increased to create unique spatial spread, then disease resistance is improved, but the foliage becomes less dense

Engineering Contradiction:

Improvedisease resistanceVSAvoidfoliage density

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The hybrid cultivar exhibits local quality variation in foliage spacing, with increased spacing in specific regions of the canopy that creates microenvironments less conducive to disease development, while maintaining overall plant health and vigor

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If vegetative reproduction is used to propagate the cultivar, then genetic stability is maintained, but the propagation process requires controlled environmental conditions

Engineering Contradiction:

Improvegenetic stabilityVSAvoidpropagation difficulty

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent employs vegetative propagation methods that require preliminary preparation of cutting materials and controlled environmental conditions during the rooting phase, after which the plants can be acclimated to broader environmental conditions, maintaining genetic stability while reducing long-term propagation complexity

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP22088P2Juniperus plant named `Newbold`

Publication Date: 2011.08.23 DICKERSON DAVID

AI summary

A new and distinct Juniperus chinensis×virginiana cultivar named ‘NEWBOLD’ is disclosed, characterized by a distinctive blue cast to the foliage, unique spatial spread of the foliage, and a broad spreading habit of the plant canopy. The new variety shows resistance to foliar diseases typical of Juniperus species in a Northern Florida climate. The new variety also shows resistance to foliar damage caused by mites. The new variety is a Juniperus, and is normally used as a garden or landscape plant.