Lavender Chrysanthemum Cultivar Yojillian Breeding

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current garden Chrysanthemum cultivars lack desirable inflorescence forms, attractive floret colors, and consistent garden performance, particularly in varying environmental conditions.

Innovation Solution

The development of the new Chrysanthemum cultivar 'Yojillian' with a compact, upright, and freely branching habit, featuring lavender-colored, elongated oblong to ligulate-shaped ray florets, which flowers uniformly and earlier than its parents, and maintains performance across different temperatures and light conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional garden Chrysanthemum cultivars are used, then basic flowering is achieved, but inflorescence forms and floret colors are not desirable and garden performance is inconsistent

Engineering Contradiction:

Improvegarden performance consistencyVSAvoidinflorescence form

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The patent applies parameter changes by selecting and breeding for specific phenotypic parameters including inflorescence form (decorative-type with elongated oblong to ligulate-shaped ray florets), floret color (lavender), plant habit (compact, upright, freely branching), and flowering time (earlier than parents). These parameter selections resolve the contradiction by establishing consistent desirable traits across generations.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If later flowering cultivars are used, then more growth time is available, but flowering uniformity decreases and performance varies in varying environmental conditions

Engineering Contradiction:

Improveflowering uniformityVSAvoidflowering time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by achieving earlier flowering (about September 12th in the Northern Hemisphere under natural season conditions) while maintaining uniform flowering across the plant population. This resolves the contradiction by advancing the flowering time parameter while preserving flowering uniformity through selective breeding.

Inventive Principle:

Principle #10Preliminary action

3Stability of the object's composition

If ray florets are yellow or purple as in parent selections, then parent characteristics are maintained, but attractive lavender coloration is not achieved

Engineering Contradiction:

Improvecolor inheritance stabilityVSAvoidfloret color

Core Design Contradiction:

Stability of the object's compositionVSShape

Solution Approach 1:

The patent applies color changes by producing lavender-colored ray florets through cross-pollination between parent selections with different color characteristics (yellow female parent, purple male parent). The lavender color represents a novel phenotypic expression that resolves the contradiction between maintaining stable inheritance and achieving desirable new coloration.

Inventive Principle:

Principle #32Color changes

Data Source

PatentUSPP18926P2Chrysanthemum plant named `Yojillian`

Publication Date: 2008.06.10 SYNGENTA CROP PROTECITON AG

AI summary

A new and distinct cultivar of Chrysanthemum plant named ‘Yojillian’, characterized by its compact, upright and outwardly spreading plant habit; freely branching habit; dense and full plant habit; uniform and freely flowering habit; decorative-type inflorescences with elongated oblong to ligulate-shaped ray florets; lavender-colored ray florets; and natural season flowering about September 12th in the Northern Hemisphere.