SAVasleep Rose Breeding for Compact Bloom Density
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Solution Overview
Problem
There is a need for a new variety of rose that combines disease resistance, hardiness, fragrance, and abundant bloom production, while also having a unique combination of flower form, size, petal count, fragrance, and plant habit, which existing rose cultivars do not effectively address.
Innovation Solution
A new rose variety, 'SAVasleep', is developed by crossing a seedling of 'Party Girl' with 'SAVaspark' as the seed parent and 'MACgenev' as the pollen parent, resulting in a Mini-Flora rose with fully double, dark to medium salmon-pink flowers, moderate to strong fragrance, and above-average disease resistance, characterized by its upright and bushy growth habit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rose variety is bred to have abundant bloom production throughout the growing season, then the quantity of blooms increases, but the plant may become larger and less compact
Solution Approach 1:
The patent combines the abundant bloom production trait from the floribunda parent 'Little Darling' with the compact growth habit from the miniature rose parent, creating a hybrid that exhibits both high productivity and small plant size. The cross between these two distinct rose types merges their complementary traits into a single cultivar that defies the typical trade-off between bloom quantity and plant size.
2Reliability
If a rose is bred for disease resistance and hardiness, then reliability improves, but fragrance and flower quality may be compromised
Solution Approach 1:
The patent merges the disease resistance and hardiness traits from the hybrid tea rose 'KORtember' with the fragrance quality from the same parent, while combining these with the abundant bloom production from 'Little Darling'. The resulting cultivar 'SAVasleep' integrates multiple desirable traits from different parental lines, achieving both reliability and fragrance quality simultaneously.
3Manufacturing precision
If a rose variety produces fully double flowers with high petal count, then flower quality improves, but the complexity of the bloom structure increases
Solution Approach 1:
The patent achieves fully double flowers with 45-55 petals per bloom, transforming the floral structure parameter to create a dense, rose-like form. This parameter change in petal count and arrangement produces a complex yet harmonious flower structure that maintains aesthetic quality while achieving the desired fully double classification.
Data Source
AI summary
‘SAVasleep’ is a new and distinct variety of rose plant primarily identified by its fully double and very fragrant blooms of a dark to medium salmon-pink color. The flowers last very well on the plant and, as cut flowers. It has proven to be easy to care for with its above average disease resistance.