Calibrachoa Cultivar USCALI223-1 Breeding for Disease Resistance

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Solution Overview

Problem

Existing Calibrachoa cultivars lack heat tolerance and disease resistance, and they do not exhibit desirable growth habits and flower characteristics such as densely mounding plant habit and attractive, large flowers.

Innovation Solution

A new Calibrachoa cultivar 'USCALI223-1' is developed through planned breeding, exhibiting a semi-upright to outwardly spreading growth habit, freely branching and flowering, with large light purple flowers and dark purple centers, and resistance to Thielaviopsis, achieved by crossing proprietary seedling selections CJ03-071 and CJ03-087.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing Calibrachoa cultivars are grown, then they can be cultivated, but they lack heat tolerance and disease resistance

Engineering Contradiction:

Improveheat tolerance and disease resistanceVSAvoidadaptability to environmental conditions

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selecting and breeding plants with specific genetic traits that confer heat tolerance and disease resistance. The breeding program systematically selected parents with desirable traits (heat tolerance, disease resistance, compact growth) and combined them through controlled crossing to produce offspring with improved parameters for reliability while maintaining adaptability.

Inventive Principle:

Principle #35Parameter changes

2Shape

If existing Calibrachoa cultivars are grown, then they can flower, but they do not exhibit densely mounding plant habit and numerous attractive flowers

Engineering Contradiction:

Improvedensely mounding plant habitVSAvoidnumber of flowers

Core Design Contradiction:

ShapeVSProductivity

Solution Approach 1:

The patent changes the morphological parameters of the plant by selecting parents with compact growth habits and combining genes that control plant architecture. The breeding program specifically selected for densely mounding habit while simultaneously selecting for high flower production, achieving both shape improvement and productivity enhancement in the same cultivar.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If existing Calibrachoa cultivars are grown, then they can be maintained, but they lack resistance to Thielaviopsis

Engineering Contradiction:

Improveresistance to ThielaviopsisVSAvoidease of cultivation

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent introduces disease resistance as a new parameter by selecting and breeding plants with genetic resistance to Thielaviopsis. This genetic parameter change provides inherent protection against the pathogen, making the cultivar more reliable and easier to cultivate without requiring additional protective measures.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUSPP18432P2Calibrachoa plant named `USCALI223-1`

Publication Date: 2008.01.15 WINGEN LLC

AI summary

A new and distinct cultivar of Calibrachoa plant named ‘USCALI223-1’, characterized by its semi-upright to outwardly spreading growth habit; mounded plant habit; freely branching and flowering habit; relatively large light purple-colored flowers with dark purple-colored centers; good garden performance; and resistance to Thielaviopsis.