Petunia Petrewis Cultivar Breeding for Cold Tolerance

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

There is a need for a new Petunia hybrida cultivar with distinct characteristics such as medium-sized deep-red flowers, early flowering, good floriferousness, and exceptional cold tolerance that are retained through asexual reproduction and not significantly affected by environmental variations.

Innovation Solution

The development of the 'Petrewis' cultivar, resulting from a controlled breeding program in Enkhuizen, Netherlands, combining the traits of a proprietary population 'E5327' as the female parent and 'B1256-1' as the male parent, with vegetative cuttings propagated in May 2006, demonstrating fixed characteristics through successive generations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If environmental conditions vary (temperature, light intensity, day length), then plant phenotype may vary significantly, but the goal is to maintain consistent characteristics across generations

Engineering Contradiction:
Improvephenotypic consistencyVSAvoidenvironmental adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies preliminary action by conducting controlled breeding in a controlled environment to pre-establish stable genetic characteristics before commercial deployment. The plant was developed through controlled hybridization and selected in a controlled environment, ensuring that desired traits are fixed before exposure to variable commercial growing conditions.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If a new Petunia cultivar is developed with distinct characteristics, then it becomes a valuable new variety, but it requires extensive breeding programs and time

Engineering Contradiction:
Improvetrait consistencyVSAvoidbreeding duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent employs preliminary action by conducting controlled hybridization between specific parent populations ('E5327' and 'B1256-1') in a controlled environment, followed by systematic selection of plants exhibiting the desired phenotype. This pre-establishment of stable genetic combinations accelerates the development of reliable new cultivars compared to uncontrolled breeding.

Inventive Principle:
Principle #10Preliminary action

3Stability of the object's composition

If vegetative cuttings are propagated to retain characteristics, then the traits are preserved through successive generations, but the propagation process requires controlled conditions and time

Engineering Contradiction:
Improvegenetic stabilityVSAvoidpropagation time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies copying through vegetative propagation via cuttings, where genetically identical copies of the selected plant are produced. This cloning method preserves the exact genetic and phenotypic characteristics of the parent plant, ensuring trait consistency across generations while enabling rapid multiplication of the desired cultivar.

Inventive Principle:
Principle #26Copying

Data Source

PatentUSPP22202P2Petunia plant named `Petrewis`
Publication Date: 2011.10.18 SYNGENTA CROP PROTECITON AG
  • USPP22202P2 patent drawing

AI summary

A new Petunia plant named ‘Petrewis’ particularly distinguished by the medium sized bold deep-red flowers, early flowering and good floriferousness, medium green foliage, excellent branching, and an outwardly spreading plant habit with exceptional cold tolerance.