PremA093 Apple Tree Breeding for Red Skin and Early Maturity

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Solution Overview

Problem

There is a need for a new apple tree variety that exhibits intense red skin color and early maturity, distinguishing itself from existing varieties like 'Galaxy' Gala and 'Scifresh', with characteristics such as fruit shape, skin pattern, flavor, and disease susceptibility.

Innovation Solution

The development of the apple tree variety 'PremA093' through controlled crossing of 'Scifresh' and 'A080R12T094', resulting in a tree with intense red skin color, early maturity, and specific botanical features like moderate vigor, spreading habit, and disease susceptibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a controlled cross of 'Scifresh' and 'A080R12T094' is performed to create a new variety, then intense red skin color and early maturity are achieved, but disease susceptibility (fire blight) increases

Engineering Contradiction:

Improveskin color intensityVSAvoidfire blight susceptibility

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The breeding program changed genetic parameters through controlled crossing to achieve intense red skin color (overcolor 95-100% red-purple) and early maturity, accepting increased fire blight susceptibility as a trade-off that requires subsequent disease management strategies

Inventive Principle:

Principle #35Parameter changes

2Loss of time

If early maturity is achieved through selective breeding, then harvest time is advanced, but fruit size may be reduced

Engineering Contradiction:

Improvetime to maturityVSAvoidfruit size

Core Design Contradiction:

Loss of timeVSVolume of moving object

Solution Approach 1:

The variety achieves early maturity (harvest beginning February 1, 8-15 days before Galaxy) while maintaining adequate fruit size (68-79 mm diameter, 140-243 g weight) through selective breeding that optimized the maturity-size parameter relationship

Inventive Principle:

Principle #35Parameter changes

3Temperature

If intense red skin color is selected for, then market appeal is improved, but genetic diversity may be reduced

Engineering Contradiction:

Improveskin color intensityVSAvoidgenetic diversity

Core Design Contradiction:

TemperatureVSAdaptability or versatility

Solution Approach 1:

The breeding program focused on achieving intense red skin color (95-100% red-purple overcolor) as a specific local quality feature while maintaining overall genetic health through controlled cross-breeding of two distinct parent varieties with different characteristics

Inventive Principle:

Principle #3Local quality

Data Source

PatentUSPP33654P2Apple tree named ‘PremA093’

Publication Date: 2021.11.23 PREVAR

AI summary

A new and distinct apple tree named ‘PremA093’, the fruit of which is notable for its intense red skin color and early maturity.