Petunia DANRAY1 Mounded Habit Breeding

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Solution Overview

Problem

There is a need for a new Petunia cultivar with a mounded plant habit and large, uniquely colored inflorescences that combines early blooming with a long bloom period, suitable for patios and outdoor beddings, as existing cultivars either lack these specific traits or do not reproduce true-to-type.

Innovation Solution

The development of the Petunia cultivar 'DANRAY1' through controlled breeding, which exhibits a mounded growth habit, large white flowers, high floriferous rate, and early to long blooming period, achieved by crossing Petunia sensu Wijsman 'PE-1148' and 'PE-65', and stabilized through asexual reproduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If existing Petunia cultivars are used, then they may have trailing or other growth habits, but they lack the desired mounded plant habit with large inflorescences

Engineering Contradiction:
Improveplant habitVSAvoidsuitability for patios and outdoor beddings
Core Design Contradiction:
ShapeVSAdaptability or versatility

Solution Approach 1:

The breeding program systematically altered growth habit parameters by crossing cultivars with different characteristics (PE-1148 and PE-65) to achieve the desired mounded shape with specific height and spread measurements, transforming the plant's architectural form while maintaining adaptability to container and landscape settings

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If existing Petunia cultivars are used, then they may bloom at various times, but they do not provide both early blooming and long bloom period

Engineering Contradiction:
Improvebloom periodVSAvoidblooming time
Core Design Contradiction:
Duration of action of moving objectVSSpeed

Solution Approach 1:

The breeding program pre-selected parental cultivars with complementary flowering characteristics (PE-1148 with early blooming tendency and PE-65 with long bloom potential) to produce offspring that inherit both early blooming capability and extended flowering duration, achieving approximately 4 months of continuous bloom from spring to fall

Inventive Principle:
Principle #10Preliminary action

3Area of moving object

If existing Petunia cultivars are used, then they may have various flower sizes, but they lack large flowers with unique coloration

Engineering Contradiction:
Improveflower sizeVSAvoidreproduction true-to-type
Core Design Contradiction:
Area of moving objectVSEase of manufacture

Solution Approach 1:

The breeding program created a stable genetic copy through asexual propagation (cuttings) that perfectly replicates the unique flower characteristics of DANRAY1, including the large 6cm diameter and distinctive white coloration with yellow throat, ensuring identical reproduction of the large-flowered phenotype across generations without genetic variation

Inventive Principle:
Principle #26Copying

4Quantity of substance

If existing Petunia cultivars are used, then they may have moderate floriferousness, but they lack high floriferous rate

Engineering Contradiction:
Improvenumber of flowersVSAvoidplant structure
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The plant architecture is segmented into multiple flowering lateral branches rather than a single main stem, with each branch producing numerous flowers simultaneously. This branching segmentation allows the plant to achieve high total flower production (dozens of flowers per plant) while distributing the floral load across multiple smaller structural units, managing the complexity of supporting large numbers of blooms

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUSPP20974P2Petunia plant named DANRAY1
Publication Date: 2010.05.04 DANZIGER - DAN FLOWER FARM
  • USPP20974P2 patent drawing
  • USPP20974P2 patent drawing

AI summary

A new and distinct Petunia plant named ‘DANRAY1’ characterized by having a mounded growth habit; large in size, white-colored flowers; high floriferous rate; early to bloom with long bloom period; and suitable for patios and outdoor beddings.