Sugar Maple JFS-KW8 Cultivar Upright Canopy and Fall Color

Solution Overview

Problem

Existing sugar maple cultivars lack superior growth characteristics, such as height, branch orientation, and vibrant fall color, making them less desirable for landscape use.

Innovation Solution

The cultivar 'JFS-KW8' of Acer saccharum exhibits unique features including dark green summer foliage, bright red fall color, upright branch orientation, and a narrowly oval to oval canopy shape, achieved through asexual propagation and evaluation under nursery conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If typical sugar maple seedlings are used for landscape planting, then they are readily available and easy to propagate, but they exhibit poor growth characteristics including shorter height, less upright branch orientation, and dull fall color

Engineering Contradiction:

Improvegrowth characteristicsVSAvoidpropagation difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses asexual propagation through budding to create exact genetic copies of the superior parent tree. The cultivar 'JFS-KW8' is propagated by budding onto sugar maple rootstock, ensuring that all desirable traits (upright growth, bright red fall color, dark green summer foliage) are faithfully replicated in successive generations without genetic variation.

Inventive Principle:

Principle #26Copying

2Reliability

If sugar maple cultivars with superior growth characteristics are developed, then they offer better landscape performance with taller height and brighter fall color, but they require extensive testing and selection processes

Engineering Contradiction:

Improveappearance characteristicsVSAvoidtesting duration

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preliminary selection and evaluation of seedling trees before establishing them as propagation stock. The inventor examined several thousand seedlings, identified superior individuals with desirable traits, and established these selected trees as the basis for asexual propagation, thereby pre-validating the genetic quality before large-scale multiplication.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent employs field evaluation where trees are assessed in their natural growing conditions over multiple years. The superior trees demonstrate their desirable characteristics (growth rate, branch orientation, fall color) in nursery settings before being selected for propagation, allowing the environment to reveal the true quality of each candidate tree.

Inventive Principle:

Principle #25Self-service

3Shape

If sugar maple trees with upright branch orientation and straight trunks are selected, then they provide better form and structure for landscaping, but such trees are rare among typical seedlings

Engineering Contradiction:

Improvecanopy shapeVSAvoidavailability

Core Design Contradiction:

ShapeVSAdaptability or versatility

Solution Approach 1:

The patent uses asexual propagation through budding to create exact genetic copies of the superior parent tree. The cultivar 'JFS-KW8' is propagated by budding onto sugar maple rootstock, ensuring that all desirable traits (upright growth, bright red fall color, dark green summer foliage) are faithfully replicated in successive generations without genetic variation.

Inventive Principle:

Principle #26Copying

Data Source

PatentUSPP22034P2Sugar maple tree named `JFS-KW8`

Publication Date: 2011.07.19 J FRANK SCHMIDT & SON

AI summary

A variety of sugar maple which combines unusually dark green summer foliage and bright red fall color with an upright branch orientation, straight trunk, and narrowly oval to oval canopy shape.