NJ357 Peach Tree Resolving Flavor and Splitting Contradictions

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Solution Overview

Problem

Current peach tree varieties either have acidic flavors, ripen too late, or are prone to fruit splitting, lacking a combination of sweet, subacid flavor, large size, and low acidity with good eating quality.

Innovation Solution

The 'NJ357' peach tree variety, resulting from crossing 'H15-20-90258' and 'Summerprince', produces larger, sweet, and subacid fruit with a low tendency to split, characterized by its mid-season ripening, attractive color, and excellent eating quality, achieved through asexual reproduction on 'Lovell' peach seedling rootstock.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current peach tree varieties are used, then they have established flavor profiles and ripening times, but they either have acidic flavors, ripen too late, or are prone to fruit splitting

Engineering Contradiction:

Improvefruit quality consistencyVSAvoidflavor profile diversity

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple desirable traits from different parent varieties into a single offspring variety 'NJ357'. The seed parent 'H15-20-90258' contributed sweet flavor and mid-season ripening, while the pollen parent 'Summerprince' contributed large fruit size and low acidity. This merging of genetic material resolves the contradiction by creating a variety that simultaneously achieves sweet subacid flavor, large size, and low splitting tendency.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of operation

If peach varieties with sweet flavor are selected, then eating quality improves, but fruit size may be reduced or splitting tendency increases

Engineering Contradiction:

Improveeating qualityVSAvoidfruit size and integrity

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The patent changes the genetic parameters of the peach variety through controlled crossing. The offspring 'NJ357' exhibits modified parameters compared to parents: larger fruit size (inherited from Summerprince), sweet subacid flavor (inherited from H15-20-90258), and reduced splitting tendency. This parameter optimization resolves the contradiction between eating quality and fruit integrity.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If mid-season ripening is achieved, then market timing is optimized, but fruit may lack the developed flavor of later-ripening varieties

Engineering Contradiction:

Improvemarket timing efficiencyVSAvoidflavor development

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by selecting and breeding the variety 'NJ357' with inherent mid-season ripening capability combined with sweet subacid flavor. Rather than allowing flavor to develop slowly over extended ripening time, the variety is pre-engineered to accumulate sufficient sugars and aromatic compounds during the mid-season period, thus achieving both timely market readiness and excellent eating quality.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP29989P3Peach tree named ‘NJ357’

Publication Date: 2018.12.18 RUTGERS THE STATE UNIV

AI summary

A new and distinct peach variety of Prunus persica named ‘NJ357’ is provided. This variety is distinguished from other peach varieties by its unique combination of showy flowers, large, nearly round, freestone fruit, with an attractive red blush and orange-red mottle over a bright yellow-orange ground color, ripening in midseason, with yellow-orange, firm, juicy flesh, and sweet, subacid flavor that is maintained following cold storage.