Coreopsis DCORSOSB Compact Mounded Cultivar Breeding

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Solution Overview

Problem

There is a need for new Coreopsis varieties with compact, mounded growth habits and unique flowering characteristics for ornamental purposes, as existing varieties lack distinctiveness in plant structure and flower color.

Innovation Solution

The development of the Coreopsis grandiflora cultivar 'DCORSOSB' through open pollination, characterized by its compact and mounded plant structure, early flowering, and bi-color yellow and red ray florets, which are more pronounced in cooler temperatures and less intense light.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If existing Coreopsis varieties are used, then they have upright plant habit and amorphous structure, but they lack compact and mounded growth habit desired for ornamental purposes

Engineering Contradiction:

Improveplant structureVSAvoiddistinctiveness

Core Design Contradiction:

ShapeVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selecting and breeding plants with specific genetic traits that produce a compact, mounded growth habit. The cultivar 'DCORSOSB' was developed through controlled breeding to achieve a plant height of approximately 28 cm with a spread of 30 cm, creating a dense, rounded form that differs from the upright, amorphous structure of existing varieties. This parameter change in plant architecture provides the desired ornamental distinctiveness.

Inventive Principle:

Principle #35Parameter changes

2Area of moving object

If existing Coreopsis varieties are used, then they have standard flower sizes, but they lack larger flowers with unique bi-color characteristics

Engineering Contradiction:

Improveflower sizeVSAvoidflower color pattern

Core Design Contradiction:

Area of moving objectVSDevice complexity

Solution Approach 1:

The patent applies local quality by developing flowers with distinct bi-color characteristics where different parts of the same flower exhibit different colors. The ray florets of 'DCORSOSB' have yellow outer portions and red inner portions, creating a two-toned effect. This local differentiation of color properties within the flower structure enhances visual appeal while maintaining a single flower form, resolving the contradiction between flower size and color pattern complexity.

Inventive Principle:

Principle #3Local quality

3Loss of time

If existing Coreopsis varieties are used, then they have standard growth rates, but they lack early flowering characteristic

Engineering Contradiction:

Improveflowering timeVSAvoidornamental output

Core Design Contradiction:

Loss of timeVSProductivity

Solution Approach 1:

The patent applies preliminary action by selecting parent plants and breeding conditions that predispose the cultivar to early flowering. The cultivar 'DCORSOSB' was developed through controlled breeding programs that selected for early bloom characteristics, allowing the plant to flower before many other Coreopsis varieties. This preliminary genetic programming enables the plant to achieve ornamental output earlier in the growing season, reducing the time loss before productive flowering begins.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP33131P2<i>Coreopsis </i>plant named ‘DCORSOSB’

Publication Date: 2021.06.01 DANZIGER - DAN FLOWER FARM

AI summary

A new and distinct cultivar of Coreopsis plant named ‘DCORSOSB’ is disclosed, characterized by a unique very compact and mounded plant habit. Flowering begins early. Ray florets are distinctively yellow with a red base and red flush. Red coloration is more pronounced in cooler temperature and less intense light conditions. The new variety is a Coreopsis, normally produced as an outdoor garden or container plant.