ISCHIA Strawberry Plant Breeding for Vigor and Fruit Shape

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Solution Overview

Problem

There is a need for a new strawberry variety that combines desirable traits such as strong plant vigor, medium to large leaf size, and specific fruit characteristics like medium red fruit color and conical shape, which are not adequately met by existing strawberry varieties like 'CIVRI30' and 'O2N2-19'.

Innovation Solution

The 'ISCHIA' strawberry variety, resulting from a controlled cross between 'CIVRI30' and 'O2N2-19', exhibits unique characteristics including medium plant vigor, medium to large leaf size, and conical fruit shape, which are stable and transmitted through asexual propagation, distinguishing it from its parents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the strawberry variety 'CIVRI30' is used, then plant vigor is weak to medium and leaf size is small to medium, but the variety has good adaptability to continental climates

Engineering Contradiction:

Improveplant vigorVSAvoidadaptability to continental climates

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The invention merges the desirable traits of two parent varieties through controlled cross-breeding. The 'ISCHIA' variety combines the strong plant vigor from one parent with the adaptability to continental climates from the other, achieving both improved strength and maintained adaptability simultaneously rather than having to choose one over the other.

Inventive Principle:

Principle #5Merging (Combining)

2Shape

If the strawberry variety 'O2N2-19' is used, then fruit color is deep red and fruit shape is obloid, but the variety lacks the desired medium red color and conical shape for market preference

Engineering Contradiction:

Improvefruit shapeVSAvoidmarket acceptance

Core Design Contradiction:

ShapeVSAdaptability or versatility

Solution Approach 1:

The invention applies local quality by selectively modifying specific fruit characteristics while maintaining other desirable traits. The 'ISCHIA' variety retains the deep red color from the 'O2N2-19' parent but modifies the fruit shape to conical and adjusts the color intensity to medium red, creating localized improvements in specific attributes that enhance market acceptance without sacrificing overall fruit quality.

Inventive Principle:

Principle #3Local quality

3Manufacturing precision

If a new strawberry variety is developed through controlled cross-breeding, then unique characteristics like medium to large leaf size and conical fruit shape are achieved, but the variety may be susceptible to Phytophthora cactorum in high humidity

Engineering Contradiction:

Improvetrait consistencyVSAvoidsusceptibility to Phytophthora cactorum

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The invention applies beforehand cushioning by selecting parent varieties with known disease resistance profiles and breeding for balanced susceptibility. The 'ISCHIA' variety was developed with awareness of potential Phytophthora cactorum susceptibility, and the breeding program likely incorporated disease resistance screening and selection to cushion against this weakness while maintaining the desired trait consistency of medium to large leaf size and conical fruit shape.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUSPP24552P3Strawberry plant named ISCHIA

Publication Date: 2014.06.17 C I V CONSORZIO ITALANO VIVAISTI - SOC CONSORTILE A R L

AI summary

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