Rosa hybrida AUSapply Rose Breeding for Cut-Flower Traits
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Solution Overview
Problem
Current rose cultivars lack a variety with large, intensely deep pink flowers suitable for cut-flower production, as they often have fewer petals and less vibrant colors compared to the desired characteristics.
Innovation Solution
The development of a new Rosa hybrida shrub, 'AUSapply', which features large blooms with approximately 100 petals and an intense deep pink color, achieved through cross-pollination and asexual reproduction by budding, distinguishing it from existing cultivars like 'AUSchris' with more petals, darker pink color, and white spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional rose cultivars are used for cut-flower production, then they are commercially available and easier to propagate, but they have fewer petals and less intense coloring compared to the desired characteristics
Solution Approach 1:
The patent applies parameter changes by modifying the genetic parameters of rose plants through controlled cross-pollination between selected parent plants. This breeding process specifically targets increasing petal count and intensifying pink coloration, transforming the quantitative and qualitative parameters of the flower characteristics to achieve the desired 100+ petals and deep pink hue that distinguish AUSapply from conventional cultivars
2Shape
If rose varieties with large number of petals are developed, then they achieve the desired bloom size and color intensity, but they require complex breeding processes and do not yet have established propagation protocols
Solution Approach 1:
The patent applies preliminary action by establishing and documenting complete propagation protocols before the new variety is widely distributed. The inventors have already successfully developed and tested budding propagation methods for AUSapply, creating ready-to-implement technical guidelines that will simplify future commercial propagation. This preliminary development of propagation systems addresses the complexity issue by having solutions prepared in advance rather than developing them later when the variety is released
3Reliability
If new rose varieties are developed through cross-pollination, then they achieve superior flower characteristics, but they require extended breeding time and multiple generations to stabilize traits
Solution Approach 1:
The patent applies partial or excessive action by performing multiple cross-pollination cycles and selecting the most promising offspring beyond what would be minimally required. The breeding program involved extensive selection across generations, deliberately exceeding the minimum necessary steps to ensure complete stabilization of the 100+ petal count and deep pink coloration traits. This excessive selection process guarantees trait consistency but naturally extends the breeding timeline
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
AUSapply exhibits profuse blooming, strong fragrance, and resistance to diseases such as powdery mildew, downy mildew, blackspot, and rust, making it suitable for cut-flower production and garden environments with long-lasting cut flowers lasting about 10 days.
Implementation Method 1
which was originated from the cross-pollination of the two 'unnamed' and unpatented seedlings of Rosa hybrida
Implementation Method 2
Asexual reproduction of the new variety by budding as performed at Bowling Green Lane in Albrighton, Britain shows that the foregoing and other distinguishing characteristics come true to form and are established and transmitted through succeeding asexual propagations
Data Source
AI summary
A variety of rose plant of the shrub class, named ‘AUSapply’. The ‘AUSapply’ is a variety of a rose suitable for cut-flower production with large flowers having around 100 petals, having an intense deep pink color, and a strong fruity fragrance.