MURANO Strawberry Variety Breeding for Firm Fruit and Vigor

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Solution Overview

Problem

There is a need for a new strawberry variety that exhibits distinct characteristics such as medium-high plant vigor, firm fruit, and specific fruit color and shape, which are not adequately met by existing strawberry varieties like 'CIVRI-30', 'A030-12', and 'R6R1-26'.

Innovation Solution

The 'MURANO' strawberry variety, resulting from a controlled cross between 'R6R1-26' and 'A030-12', possesses unique traits including medium-high plant vigor, conical fruit shape, and very firm fruit, which are consistently reproduced through asexual propagation and maintained in subsequent generations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If existing strawberry varieties like 'CIVRI-30' are used, then cultivation is simpler, but plant vigor is only medium and fruit firmness is only firm

Engineering Contradiction:

Improvefruit firmnessVSAvoidbreeding program complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent merges multiple parental varieties ('R6R1-26' and 'A030-12') through controlled crossing to combine desirable traits including medium-high plant vigor and very firm fruit characteristics into a single superior variety

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The breeding program systematically changed genetic parameters through multi-generation selection and crossing, transforming parent varieties with medium vigor and firm fruit into offspring with medium-high vigor and very firm fruit

Inventive Principle:

Principle #35Parameter changes

2Shape

If parent varieties 'A030-12' and 'R6R1-26' are used, then fruit color ranges from orange red to dark red, but fruit shape varies from conical to globose elongated

Engineering Contradiction:

Improvefruit shapeVSAvoidtrait consistency

Core Design Contradiction:

ShapeVSManufacturing precision

Solution Approach 1:

The patent applies local quality by selecting and stabilizing specific traits (conical fruit shape, medium-high vigor) in the offspring while maintaining other desirable characteristics from the parents, creating a uniform variety with consistent local attributes

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The multi-year testing program (2006-2011) provided feedback on trait expression and consistency, allowing breeders to select and stabilize the desired conical fruit shape and medium-high vigor through iterative selection

Inventive Principle:

Principle #23Feedback

3Productivity

If existing varieties are cultivated, then harvest period is established, but marketable yield and disease tolerance need improvement

Engineering Contradiction:

Improvemarketable yieldVSAvoiddisease tolerance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The variety underwent preliminary testing and evaluation over multiple years (2006-2011) in different European locations to pre-establish its productivity and disease tolerance characteristics before commercial release

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The breeding process changed genetic parameters to improve both productivity (marketable yield) and reliability (disease tolerance), achieving superior performance in both traits compared to parent varieties

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUSPP25070P3Strawberry plant named `MURANO`

Publication Date: 2014.11.18 C I V CONSORZIO ITALANO VIVAISTI - SOC CONSORTILE A R L

AI summary

A new and distinct variety of Fragaria L.. named ‘MURANO’, characterized by the description herein.