Jonred V Cherry Tree Breeding for Fruit Quality and Stem Strength

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Solution Overview

Problem

There is a need for a new cherry tree variety that combines improved fruit quality, such as sweeter flavor, firmer texture, and stronger stem attachment, while maintaining self-unfruitfulness and being suitable for commercial orchards in central California's climate, which existing cherry tree varieties like 'Glenred' do not fully address.

Innovation Solution

The 'Jonred V' cherry tree variety, developed through cross-pollination with 'Glenred' and compatible with 'Colt' rootstock, exhibits enhanced fruit characteristics like darker red skin color, firmer texture, and sweeter flavor, and requires cross-pollination for fruit production, making it suitable for commercial cultivation and shipping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the cherry tree variety is made sweeter in flavor, then the eating quality is improved, but the firmness and crack resistance may be compromised

Engineering Contradiction:

Improveeating qualityVSAvoidfirmness and crack resistance

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The patent applies parameter changes by selectively breeding for specific biochemical parameters (sugar content, acid content) while maintaining structural parameters (firmness, crack resistance) through controlled cross-pollination and selection of parent trees with complementary traits

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the stem attachment is strengthened, then the fruit quality for shipping is improved, but the natural growth patterns may be altered

Engineering Contradiction:

Improvestem attachmentVSAvoidgrowth adaptability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by focusing improvement on a specific local characteristic (stem attachment strength) while maintaining overall tree health and growth adaptability through selection of parent trees that possess both strong attachment traits and good growth patterns

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If the cherry tree is made self-unfruitful, then cross-pollination is required improving fruit quality, but the productivity may be reduced

Engineering Contradiction:

Improvefruit qualityVSAvoidyield per tree

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies merging by combining self-unfruitfulness (which ensures cross-pollination and improved fruit quality) with high productivity traits from selected parent trees, achieving both quality and yield through controlled orchard planting schemes

Inventive Principle:

Principle #5Merging (Combining)

4Shape

If the skin color is made darker red, then the visual appeal is improved, but the susceptibility to sun damage may increase

Engineering Contradiction:

Improveskin colorVSAvoidsun damage susceptibility

Core Design Contradiction:

ShapeVSObject-affected harmful factors

Solution Approach 1:

The patent applies parameter changes by selecting for specific pigmentation parameters (anthocyanin content, skin thickness) that produce dark red color while simultaneously maintaining resistance parameters through selection of parent trees with both color and sun resistance traits

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUSPP34181P2Cherry tree named ‘Jonred V’

Publication Date: 2022.05.03 BRADFORD LOWELL GLEN

AI summary

The present invention relates to a cherry tree, Prunus avium, and more particularly to a new and distinct variety broadly characterized by a medium size, moderately vigorous, hardy, self-unfruitful, and productive tree. The fruit matures under the ecological conditions described in mid May, with first picking on May 12, 2021. The fruit is medium to large in size, very sweet in flavor, oblate in shape, clingstone in type, very firm in texture, deep red in flesh color, blackish red in skin color, and has a moderately long stem that is strongly attached to the fruit.