New Guinea Impatiens Cultivar SAKIMP012 Hybridization

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Solution Overview

Problem

There is a need for a new cultivar of New Guinea Impatiens that combines desirable traits such as unique flower color, compact growth habit, and strong root system, which are not adequately met by existing Impatiens varieties.

Innovation Solution

The development of the 'SAKIMP012' cultivar, resulting from an interspecific hybridization between 'NG-02WM1' and 'NG-01H-9A', which exhibits red-purple flowers with light purple eyes, a compact growth habit, and a strong root system, and is stable through successive generations of asexual propagation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If existing Impatiens varieties are used, then basic flowering capability is provided, but unique flower color and compact growth habit are not achieved

Engineering Contradiction:

Improvegrowth habitVSAvoidtrait combination

Core Design Contradiction:

ShapeVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple desirable traits from different parent lines through hybridization. The female parent 'NG-02WM1' contributes orange flowers and compact growth, while the male parent 'NG-01H-9A' contributes pink-lilac flowers. The resulting cultivar 'SAKIMP012' merges these traits to produce unique red-purple flowers with light purple eyes and compact growth habit, achieving a trait combination not available in existing varieties.

Inventive Principle:

Principle #5Merging (Combining)

2Shape

If hybridization is performed to achieve unique traits, then flower color and growth habit are improved, but breeding complexity increases

Engineering Contradiction:

Improvegrowth habitVSAvoidbreeding process

Core Design Contradiction:

ShapeVSDevice complexity

Solution Approach 1:

The patent employs self-service through vegetative propagation to maintain and reproduce the desired traits once the hybrid cultivar is developed. Shoot-tip cuttings are used to asexually propagate 'SAKIMP012', ensuring true-to-type reproduction of the unique flower color and compact growth habit without requiring repeated complex hybridization processes. This self-service propagation method simplifies the breeding process for subsequent generations.

Inventive Principle:

Principle #25Self-service

3Reliability

If selection criteria include multiple traits, then overall plant quality is improved, but selection difficulty increases

Engineering Contradiction:

Improvetrait stabilityVSAvoidselection criteria evaluation

Core Design Contradiction:

ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent segments the selection process into distinct evaluation stages, each focusing on specific traits. The F1 plants were evaluated in an open field trial with criteria including flower color, strong root system, and compact plant growth habit. By dividing the selection into manageable trait assessments and using vegetative propagation to preserve and evaluate individual plant selections, the complexity of multi-trait selection is reduced while maintaining reliability.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUSPP19392P2New Guinea Impatiens plant named 'SAKIMP012'

Publication Date: 2008.10.28 SAKATA SEED AMERICA INC

AI summary

A New Guinea Impatiens cultivar particularly distinguished by having red-purple flowers with light purple eyes, a strong root system and a compact growth habit, is disclosed.