PremP027 Pear Tree Breeding for Early Maturity and Disease Resistance

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Solution Overview

Problem

There is a need for a new pear tree variety that combines desirable traits such as unique fruit shape and color, early harvest maturity, and disease resistance, while maintaining consistency through asexual propagation.

Innovation Solution

The 'PremP027' pear tree variety was developed through controlled crossing of 'Max Red Bartlett' and 'Snowflake' and selected for its distinct characteristics, including an almost round shape, lack of red skin color, and early ripening, which distinguishes it from its parents and other varieties, with asexual propagation ensuring stability across generations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a new pear variety is developed through controlled crossing to achieve unique fruit shape and color, then fruit quality and distinctiveness are improved, but breeding time and complexity increase

Engineering Contradiction:

Improvefruit shapeVSAvoidbreeding time

Core Design Contradiction:

ShapeVSLoss of time

Solution Approach 1:

The patent combines multiple desirable traits from different parent varieties ('Max Red Bartlett' for fruit quality and 'Snowflake' for early ripening) through controlled crossing to create a new variety that simultaneously achieves unique fruit characteristics and early harvest maturity within an acceptable breeding timeframe

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The breeding process systematically varied genetic parameters through controlled crosses and selected offspring with specific combinations of traits (fruit shape, color, ripening time) to achieve the desired outcome of unique fruit characteristics combined with early maturity

Inventive Principle:

Principle #35Parameter changes

2Productivity

If early harvest maturity is achieved through selective breeding, then productivity is improved, but fruit quality consistency may worsen

Engineering Contradiction:

Improveharvest maturityVSAvoidfruit quality consistency

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent employs systematic observation and selection feedback over multiple generations, evaluating fruit quality parameters (shape, color, ripening time) and selecting only those offspring that meet specific criteria, thereby maintaining quality consistency while achieving early harvest maturity

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Asexual propagation by budding creates genetically identical copies of the selected superior plant, ensuring that the early harvest maturity and fruit quality characteristics are consistently replicated across all propagated trees without genetic variation

Inventive Principle:

Principle #26Copying

3Reliability

If asexual propagation is used to maintain variety stability, then reliability is improved, but propagation speed may worsen

Engineering Contradiction:

Improvevariety stabilityVSAvoidpropagation speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent establishes a reliable propagation system through budding that creates true-to-type copies of the selected superior plant, ensuring variety stability is maintained from the outset across all propagated material, enabling reliable commercial production

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP28874P3Pear tree named ‘PremP027’

Publication Date: 2018.01.16 PREVAR

AI summary

A new and distinct pear tree named ‘PremP027’ is disclosed. The new pear is notable for its attractive appearance, superb texture, improved flavor and long shelf life.