RNF Yellow 01 Rose Cultivar Breeding Stability

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Solution Overview

Problem

There is a need for a new rose cultivar that combines the desirable traits of fragrance, flower color, and size with the ability to retain distinct characteristics through successive propagations, as existing rose varieties often lack consistency in these aspects.

Innovation Solution

The development of the 'RNF Yellow 01' rose cultivar, resulting from a breeding program between Rosa L. 'Gold Bunny' and an unnamed Rosa rugosa variety, which exhibits a unique creamy yellow and lemon yellow petal color, strong fragrance, and larger flower size, while maintaining stability through propagation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a new rose cultivar is developed through breeding programs, then unique flower color and strong fragrance are achieved, but consistency and stability of these characteristics through successive propagations become problematic

Engineering Contradiction:

Improvebreeding programVSAvoidconsistency through propagation

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent applies preliminary action by performing extensive field testing and propagation trials before finalizing the cultivar release. The breeder conducted multiple generations of asexual reproduction through cuttings and monitored the plants over several growing seasons to ensure stability of characteristics, thereby resolving the contradiction between developing unique traits and ensuring their consistent inheritance.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If existing rose varieties are used, then propagation consistency is maintained, but unique combinations of fragrance, flower color, and size are lacking

Engineering Contradiction:

Improvepropagation consistencyVSAvoidunique trait combination

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by deliberately selecting parent plants with specific characteristics - 'Gold Bunny' for its bright lemon yellow color and an unnamed Rosa rugosa variety for its fragrance. Through controlled cross-breeding, the breeder created a new cultivar that combines these parameters (color and fragrance) in a unique way, then stabilized these parameters through subsequent propagation testing.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If traditional breeding methods are employed, then new cultivars with unique characteristics can be created, but the time and resources required for testing and stabilization increase

Engineering Contradiction:

Improvenew cultivar developmentVSAvoidtesting and field trial duration

Core Design Contradiction:

Ease of manufactureVSLoss of time

Solution Approach 1:

The patent applies continuity of useful action by implementing a systematic, ongoing breeding program that continuously evaluates propagated plants across multiple growing seasons. Rather than conducting discrete, isolated tests, the breeder maintained continuous observation and selection processes, allowing for efficient identification and stabilization of desirable traits over time.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUSPP29315P3Rose plant named ‘RNF Yellow 01’

Publication Date: 2018.05.29 KANEYA

AI summary

A new and distinct rose plant having a strong fragrance and creamy yellow to lemon yellow-colored flowers.