Yellow Ray-Floret Chrysanthemum Cultivar Breeding

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Solution Overview

Problem

Existing chrysanthemum cultivars lack a distinct yellow ray-floret color mutant, limiting floral diversity and aesthetic options in garden mums.

Innovation Solution

A new cultivar, 'Zanmuaval Yelimp', is developed through breeding and selection, featuring yellow ray-florets instead of the purple color of its parent 'Zanmuaval', with specific characteristics such as medium-sized blooms, greenish centers, and a bushy growth habit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a new flower color mutant is developed through breeding and selection, then floral diversity and aesthetic appeal are enhanced, but breeding time and resource investment increase

Engineering Contradiction:

Improvefloral diversityVSAvoidbreeding time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The breeding program performed preliminary action by maintaining a systematic collection of parent plants with known characteristics and pre-establishing breeding protocols. This allowed for efficient selection and crossing to produce the yellow ray-floret mutant, reducing the overall time required for development.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention directly applies color change principle by selecting for a mutant with yellow ray-florets instead of the typical purple color. This color mutation was the target characteristic that differentiated the new cultivar and enhanced floral diversity without requiring complex structural modifications.

Inventive Principle:

Principle #32Color changes

2Adaptability or versatility

If a new cultivar is developed with distinct characteristics, then aesthetic appeal is improved, but the complexity of breeding and selection processes increases

Engineering Contradiction:

Improveaesthetic appealVSAvoidbreeding process complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The breeding program focused on local quality by targeting a specific trait (ray-floret color) rather than attempting to modify the entire plant simultaneously. This localized approach to selecting for yellow coloration simplified the breeding process compared to developing multiple characteristics at once.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The invention applied parameter change principle by modifying a single key parameter (ray-floret color from purple to yellow) while maintaining other plant characteristics. This single-parameter focus reduced breeding complexity compared to modifying multiple parameters simultaneously.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If vegetative propagation is used to multiply the new cultivar, then production efficiency is improved, but the requirement for controlled propagation conditions increases

Engineering Contradiction:

Improvepropagation efficiencyVSAvoidpropagation condition control

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The cultivar exhibits self-service capability through natural rooting of cuttings under controlled greenhouse conditions. The plant automatically develops roots and establishes new plants without requiring complex external intervention, simplifying the propagation process while maintaining efficiency.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUSPP28607P3<i>Chrysanthemum </i>plant named ‘Zanmuaval Yelimp’

Publication Date: 2017.11.07 VAN ZANTEN BREEDING BV

AI summary

A chrysanthemum plant named ‘Zanmuaval Yelimp’ characterized by its medium sized blooms with yellow ray florets and prolific branching; natural season flower date October 19; blooming for a period of 5 weeks.