Kara King Cherry Tree Dual-Harvest Window and High Sugar Yield

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Solution Overview

Problem

There is a need for a sweet cherry tree variety that offers a wide harvest window, large fruit size, and high sugar content, while maintaining market suitability and disease resistance similar to existing varieties like 'Bing' and 'Rainier'.

Innovation Solution

The 'Kara King' sweet cherry tree, discovered as a chance seedling, exhibits a wide harvest window with early fruit suitable for market as 'Rainier'-type and late-season fruit suitable as 'Bing'-type, characterized by large fruit size and high sugar content, propagated on 'Mazzard' rootstock, and showing vigorous growth with specific botanical traits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If a cherry tree variety is bred for early season fruit production, then early market suitability is improved, but late season harvest window is reduced

Engineering Contradiction:

Improveharvest windowVSAvoidmarket type versatility

Core Design Contradiction:

Duration of action of moving objectVSAdaptability or versatility

Solution Approach 1:

The cherry tree variety dynamically adjusts fruit ripening timing across the growing season, producing early-season Rainier-type fruit and late-season Bing-type fruit from the same tree, thereby extending the harvest window and maintaining versatility across different market types

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The variety exhibits parameter changes in fruit coloration and ripening characteristics throughout the season, transitioning from yellow/light red early fruit to dark red late fruit, allowing adaptation to different market preferences across time

Inventive Principle:

Principle #35Parameter changes

2Volume of moving object

If cherry fruit size is increased, then market value is improved, but sugar content may be diluted

Engineering Contradiction:

Improvefruit sizeVSAvoidsugar content

Core Design Contradiction:

Volume of moving objectVSQuantity of substance

Solution Approach 1:

The variety maintains high sugar content (21-23° Brix or more) despite producing large fruit, achieving parameter optimization where both size and sugar concentration are maximized simultaneously rather than traded off

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If a new cherry variety is developed with unique characteristics, then market differentiation is improved, but disease resistance may be compromised

Engineering Contradiction:

Improvemarket differentiationVSAvoiddisease resistance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The variety combines multiple functions including disease resistance similar to Bing, vigorous growth habits, and unique dual-market fruit production, making it universally adaptable to both commercial reliability and market differentiation requirements

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUSPP31036P2Cherry tree named ‘Kara King’

Publication Date: 2019.11.12 BRISKY CANYON CO INC

AI summary

A new cherry tree named ‘Kara King’ distinguished primarily by its wide harvest window. Early fruit is yellow and light red, suitable for market as ‘Rainier’-type cherry, while late-season fruit is dark red, suitable for market as a ‘Bing’-type cherry. ‘Kara King’ is further distinguished by its large fruit size and high sugar content.