AUSpluto Rose Shrub Two-Tone Flower Breeding
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Solution Overview
Problem
Current rose cultivars lack a variety with very large flowers featuring distinct two-tone coloration with rich yellow centers and pink outer petals, along with a fruity fragrance, which are not adequately addressed by existing commercial rose varieties.
Innovation Solution
The development of a new Rosa hybrida shrub, 'AUSpluto', achieved through cross-pollination of unnamed seedlings, exhibiting large yellow-centered flowers with pink outer petals and a fruity fragrance, which can be asexually propagated using the Rosa 'Inermis' rootstock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If cross-pollination breeding is performed to create new rose varieties with unique flower characteristics, then flower size and coloration diversity are improved, but breeding time and complexity increase
Solution Approach 1:
The patent performs preliminary breeding actions by cross-pollinating selected parent plants before commercial release, allowing the unique two-tone yellow and pink flower characteristics to be established in advance. This preliminary creation of the desired flower phenotype resolves the contradiction by having the improved flower traits ready before market introduction, avoiding the need for prolonged breeding periods after commercial deployment.
2Stability of the object's composition
If asexual propagation by budding is used to maintain variety characteristics, then genetic stability and trait consistency are improved, but propagation success depends on rootstock compatibility
Solution Approach 1:
The patent uses Rosa 'Inermis' rootstock as an intermediary carrier to propagate the 'AUSpluto' variety. This rootstock acts as a mediator that is specifically compatible with the scion, enabling reliable asexual propagation while maintaining genetic stability of the unique two-tone flower characteristics. The rootstock compatibility resolves the contradiction by providing a reliable propagation system that ensures both genetic fidelity and propagation success.
3Productivity
If continuous blooming is achieved through breeding, then ornamental value and productivity are improved, but plant energy consumption and maintenance requirements increase
Solution Approach 1:
The patent achieves continuous blooming by altering the phenotypic parameters of the rose plant through selective breeding. The 'AUSpluto' variety exhibits extended flowering periods and repeated blooming cycles, changing the temporal parameters of flower production. This resolves the contradiction by optimizing the blooming pattern to provide continuous ornamental value while the plant's energy metabolism is naturally regulated to sustain this improved productivity.
Data Source
AI summary
A variety of rose plant of the shrub class, named ‘AUSpluto’. The ‘AUSpluto’ is a variety of rose having very large flowers with a distinct two-tone coloration having rich yellow centers and pink outer petals with a fruity fragrance.