Oscopet2 Petunia Cultivar Cold Tolerance Breeding

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Solution Overview

Problem

Existing Petunia cultivars lack cold tolerance and exhibit undesirable leaf and flower characteristics, limiting their adaptability and aesthetic appeal.

Innovation Solution

A new Petunia×hybrida cultivar, 'Oscopet2', bred for cold tolerance with a unique combination of upright and spreading growth habit, narrow leaves, star-shaped purple flowers, and improved temperature tolerance, achieved through controlled cross-pollination and asexual reproduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional Petunia cultivars are used, then they exhibit typical Petunia characteristics, but they lack cold tolerance and have undesirable leaf and flower characteristics

Engineering Contradiction:
Improvecold toleranceVSAvoidadaptability to varying environmental conditions
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by selectively breeding Petunia plants to modify specific traits including cold tolerance, leaf width, and flower shape. The breeding program targeted changes in physiological parameters (cold tolerance) and morphological parameters (narrow leaves, star-shaped flowers) to create a cultivar adapted to cooler climates while maintaining aesthetic appeal.

Inventive Principle:
Principle #35Parameter changes

2Temperature

If Petunia cultivars are bred for cold tolerance, then temperature tolerance improves, but leaf width and flower shape may become less desirable

Engineering Contradiction:
Improvetemperature toleranceVSAvoidleaf width and flower shape
Core Design Contradiction:
TemperatureVSShape

Solution Approach 1:

The patent applies local quality by making specific parts of the plant have differentiated characteristics - the leaves are bred to be narrow and the flowers to have a star shape with reflexed petals, while simultaneously improving the overall cold tolerance of the plant. This principle allows different parts of the plant to have optimized characteristics for their specific functions while the whole plant adapts to cooler temperatures.

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If asexual reproduction is used to propagate the new cultivar, then genetic stability is maintained, but the breeding process requires controlled environments and time

Engineering Contradiction:
Improvegenetic stabilityVSAvoidbreeding and propagation time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by conducting the cross-pollination and initial selection of desirable traits in a controlled environment before large-scale propagation. The inventor performed preliminary breeding work to establish the desired characteristics (narrow leaves, star-shaped flowers, cold tolerance) and selected superior plants for propagation, thereby preparing the genetic material in advance to ensure stability while minimizing the time required for mass production.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUSPP20945P2Petunia plant named `Oscopet2`
Publication Date: 2010.04.27 DE ZONNEBLOEM BREEDING
  • USPP20945P2 patent drawing
  • USPP20945P2 patent drawing

AI summary

A new and distinct cultivar of Petunia plant named ‘Oscopet2’, characterized by its upright and outwardly spreading plant habit; moderately vigorous growth habit; narrow leaves; star-shaped purple-colored flowers; and relative tolerance to low temperatures.