R205 Apple Tree Breeding for Fresh Market Traits

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Solution Overview

Problem

There is a need for a new apple tree variety that offers attractive fruit characteristics suitable for fresh consumption, addressing limitations in existing varieties regarding flesh color, eating quality, storageability, and disease resistance.

Innovation Solution

The development of the 'R205' apple tree variety, resulting from a controlled cross between 'S.157' and 'HY63-2', which exhibits dark red skin, red and white flesh, and is well-suited for fresh consumption, with specific characteristics such as medium vigor, spreading habit, and moderate storageability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If apple varieties are bred for attractive flesh color and eating quality, then fresh consumption suitability is improved, but storageability often deteriorates

Engineering Contradiction:

Improvefresh consumption suitabilityVSAvoidstorageability

Core Design Contradiction:

Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The patent applies parameter changes by breeding an apple variety with specific biochemical parameters optimized for both fresh consumption and storage. The 'R205' variety achieves this through controlled genetic crossing that results in specific flesh color (red N45C on 80%), sugar content (Brix 12), and acidity levels, creating a balanced profile that maintains quality during storage while being attractive for fresh eating.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If apple varieties are bred for disease resistance, then reliability is improved, but fruit quality characteristics often deteriorate

Engineering Contradiction:

Improvedisease resistanceVSAvoidfruit eating quality

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent applies composite materials principle by combining genetic traits from two different parent varieties through controlled crossing. The female parent 'S.157' contributes disease resistance and the male parent 'HY63-2' contributes superior fruit quality characteristics including flesh color, texture, and flavor. This genetic combination creates a composite variety that exhibits both disease resistance and excellent eating quality without compromising either trait.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUSPP35603P3Apple tree named ‘R205’

Publication Date: 2024.01.30 IFO S A R L

AI summary

‘R205’ is a new apple tree notable for its fruit, which exhibits attractive dark red skin and red and white flesh and is well-suited for the fresh market.