Daphne Cultivar DAPJUR01 Sun Tolerance and Flower Size
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Solution Overview
Problem
There is a need for a new Daphne cultivar that exhibits unique characteristics such as larger, highly fragrant flowers forming a spike-like raceme, improved sun tolerance, and a bushy compact habit, which are not found in existing varieties like Daphne odora 'Grace Stewart' and Daphne bholua, and commercial varieties like Daphne odora 'Alba'.
Innovation Solution
The cultivar 'DAPJUR01' is developed through a planned breeding program, combining the seed parent Daphne odora 'Grace Stewart' and pollen parent Daphne bholua, resulting in a compact, sun-tolerant plant with larger, light pink flowers and a longer flowering period, suitable for both container and garden plantings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If traditional Daphne varieties are used, then they produce terminal cluster heads of flowers, but the flowers are small and not highly fragrant
Solution Approach 1:
The patent applies parameter changes by breeding a new cultivar that fundamentally alters the flowering configuration from a terminal cluster head to a spike-like raceme. This morphological parameter change results in simultaneously larger flowers (3-4 cm diameter vs. smaller traditional flowers) and enhanced fragrance, resolving the contradiction between flower size and flowering structure.
2Object-affected harmful factors
If Daphne odora 'Alba' is used, then it has white flowers, but it is not sun tolerant and has smaller flowers
Solution Approach 1:
The patent merges desirable traits from different parent varieties through controlled breeding. The new cultivar combines the sun tolerance trait (resistance to harmful environmental factors) with larger flower size (3-4 cm diameter), while also incorporating light pink coloration. This merging of previously separate traits resolves the contradiction between sun tolerance and flower size.
3Quantity of substance
If Daphne odora 'Grace Stewart' is used, then it has a certain flower size, but it produces terminal cluster heads and is less fragrant
Solution Approach 1:
The patent applies parameter changes by transforming the flowering configuration from a terminal cluster head to a spike-like raceme structure. This structural parameter change is associated with increased fragrance production (highly fragrant flowers) and larger individual flower size, thereby resolving the contradiction between fragrance quantity and flowering configuration shape.
4Shape
If unnamed Daphne bholua is used, then it has certain growth characteristics, but it produces smaller flowers and less compact habit
Solution Approach 1:
The patent merges the compact bushy plant habit from Daphne bholua with the larger flower size trait. The resulting cultivar exhibits a dense, compact growth form while producing substantially larger flowers (3-4 cm diameter), resolving the contradiction between plant habit compactness and flower size.
Data Source
AI summary
A new and distinct Daphne cultivar named ‘DAPJUR01’ is disclosed, characterized by an abundance of large, highly fragrant flowers. Plants are bushy and produce unique, unusually long racemes of flowers. Additionally the new variety is sun tolerant. The new variety is a Daphne, normally produced as an outdoor garden or container plant.