Coreopsis DCOREO202 Breeding for Dense Mounded Habit

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current Coreopsis cultivars lack desirable traits such as dense and full plant structure, abundant flowering, and specific bi-color flower patterns, along with optimal height and leaf characteristics for ornamental commercial applications.

Innovation Solution

The development of the new Coreopsis cultivar 'DCOREO202' through open pollination breeding, which exhibits good branching, long and continuous flowering, mounded habit, and bi-color red and yellow flowers, differing from existing varieties in plant structure, flowering abundance, and height.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing Coreopsis cultivars are used, then they have basic ornamental value, but they lack dense plant structure, abundant flowering, and specific bi-color flower patterns

Engineering Contradiction:
Improveornamental valueVSAvoidplant structure density
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selecting and breeding plants with specific genetic traits that result in denser plant structure, more abundant flowering, and bi-color flower patterns. The breeding program systematically altered plant parameters including branching density, flower production, and pigmentation to achieve the desired ornamental characteristics that distinguish 'DCOREO202' from existing cultivars.

Inventive Principle:
Principle #35Parameter changes

2Length of moving object

If Coreopsis cultivars are bred for taller height, then they have more vertical presence, but they lose the compact mounded habit desirable for ornamental applications

Engineering Contradiction:
Improveplant heightVSAvoidmounded habit
Core Design Contradiction:
Length of moving objectVSShape

Solution Approach 1:

The patent applies local quality by creating a plant with non-uniform growth distribution - the 'DCOREO202' cultivar exhibits dense branching and compact growth in the lower and middle portions of the plant while maintaining controlled overall height. This localized density creation achieves the mounded habit desired for ornamental applications without sacrificing all height, as the plant maintains a compact form through targeted branching patterns rather than uniform stunting.

Inventive Principle:
Principle #3Local quality

3Duration of action of moving object

If Coreopsis cultivars are bred for continuous flowering, then they have extended bloom period, but they may reduce flower size or intensity

Engineering Contradiction:
Improveflowering periodVSAvoidflower development rate
Core Design Contradiction:
Duration of action of moving objectVSSpeed

Solution Approach 1:

The patent applies continuity of useful action by breeding the 'DCOREO202' cultivar to produce flowers continuously over an extended period rather than in discrete blooming cycles. The plant maintains consistent flower production from early spring through fall, with multiple flushes of blooms that ensure continuous ornamental display. This continuous flowering is achieved through genetic selection for prolonged reproductive activity while maintaining adequate resources for flower development.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUSPP27181P3<i>Coreopsis </i>plant named ‘DCOREO202’
Publication Date: 2016.09.20 DANZIGER - DAN FLOWER FARM
  • USPP27181P3 patent drawing
  • USPP27181P3 patent drawing

AI summary

A new and distinct Coreopsis cultivar named ‘DCOREO202’ is disclosed, characterized by long, continuous flowering on highly floriferous plants. Large flowers of intense color, mounded plant habit and good branching creating a dense and full body. The new variety is a Coreopsis, normally produced as an outdoor garden or container plant.