Daphne DAPJUR02 Cultivar Sun Tolerance and Flower Size
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Solution Overview
Problem
There is a need for a new Daphne cultivar that exhibits distinct horticultural characteristics such as larger flowers, unique flowering configuration, high fragrance, sun tolerance, and a bushy plant habit, which are not consistently met by existing varieties like Daphne odora 'Alba', particularly in varying environmental conditions.
Innovation Solution
The cultivar 'DAPJUR02' is a naturally occurring mutation of Daphne odora 'DAPJUR01' with stable reproduction, characterized by white flowers, a spike-like raceme, high fragrance, and enhanced sun tolerance, suitable for both container and garden plantings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If Daphne odora 'Alba' is used, then white flowers are obtained, but the flowers are smaller and the plant is not sun tolerant
Solution Approach 1:
The patent describes a naturally occurring mutation that resulted in changed parameters of the Daphne odora plant. The mutant plant 'DAPJUR02' exhibits altered characteristics including larger flower size (parameter change in floral dimensions), white flower color, and enhanced sun tolerance compared to the parent variety 'DAPJUR01'. This represents a parameter change principle where the mutation modified specific plant traits to achieve improved performance.
2Duration of action of moving object
If Daphne odora 'Alba' is used, then white flowers are obtained, but the flowering period is shorter
Solution Approach 1:
The mutant plant 'DAPJUR02' exhibits parameter changes that result in both larger flowers and an extended flowering period. The natural mutation altered the temporal characteristics of flowering, allowing the plant to maintain blooms for a longer duration while simultaneously increasing flower size, thus resolving the trade-off between these two parameters.
3Shape
If typical Daphne flowering configuration is used, then terminal cluster head of flowers is formed, but the aesthetic appeal is reduced
Solution Approach 1:
The mutant plant 'DAPJUR02' displays an asymmetric deviation from the typical Daphne flowering configuration. Instead of the conventional terminal cluster head arrangement, the mutant produces flowers in a spike-like raceme formation along the stem. This asymmetric change in floral arrangement provides enhanced aesthetic appeal while maintaining the functional integrity of the flowering process.
Data Source
AI summary
A new and distinct Daphne cultivar named ‘DAPJUR02’ is disclosed, characterized by an abundance of large, white, highly fragrant flowers. Plants are bushy and produce unique, unusually long racemes of flowers. Plants are sun tolerant. The new variety is a Daphne, normally produced as an outdoor garden or container plant.