ZOUK G1 Apple Tree Mutant Propagation for Early Ripening

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Solution Overview

Problem

There is a need for new apple tree varieties with improved characteristics such as early ripening and enhanced fruit quality, including color, flavor, and texture, to meet the economic demands of the apple crop industry.

Innovation Solution

The development of a new apple tree variety, 'ZOUK G1', which was discovered as a mutant branch of 'Royal Beaut' and propagated through T-budding and bench grafting onto 'M9 T337', 'MM106', and 'MM111' rootstocks, exhibiting early ripening, dark red striped fruit, sweet flavor, and crisp texture, and maintaining these characteristics through asexual reproduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional apple tree varieties are used, then fruit production is maintained at traditional levels, but fruit ripening occurs later and fruit quality (color, flavor, texture) does not meet enhanced requirements

Engineering Contradiction:

Improvefruit ripening speedVSAvoidfruit quality consistency

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies parameter changes by identifying and propagating a specific mutant branch (ZOUK G1) that exhibits altered ripening parameters and quality characteristics compared to the parent Royal Beaut variety. The mutant displays earlier ripening, enhanced red striping, and improved flavor/texture, representing a genetic parameter change that resolves the contradiction between ripening speed and quality consistency.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If multiple picking rounds are conducted to harvest all quality fruit, then fruit yield is maximized, but labor time and operational complexity increase

Engineering Contradiction:

Improvefruit yieldVSAvoidpicking time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent employs copying by creating multiple asexual propagations (clones) of the mutant branch ZOUK G1 through T-budding and bench grafting onto different rootstocks. These clones replicate the superior ripening characteristics and fruit quality, allowing for synchronized harvesting and reducing the need for multiple picking rounds while maintaining high yield.

Inventive Principle:

Principle #26Copying

3Stability of the object's composition

If asexual propagation is used to maintain variety characteristics, then true-to-type reproduction is achieved, but propagation complexity and rootstock selection requirements increase

Engineering Contradiction:

Improvevariety true-to-type reproductionVSAvoidpropagation system complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies universality by demonstrating that the ZOUK G1 mutant can be successfully propagated asexually onto multiple different rootstock varieties (M9 T337, MM106, MM111). This multi-functionality allows the same scion to be cloned across different rootstock systems, maintaining true-to-type reproduction while providing flexibility in propagation methods and reducing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUSPP30576P2Apple tree named ‘ZOUK G1’

Publication Date: 2019.06.18 ZOUK B V B A

AI summary

A new and distinctive variety of a Malus domestica Mill. apple tree, named ‘ZOUK G1’ that is distinguished by its early ripening and good coloring characteristics, and by fruit that is striped and dark red in color with a sweet flavor and crisp texture, is disclosed.