Philadelphus SMNPBD Double Flower Breeding
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Solution Overview
Problem
There is a need for new forms of flowers with unique characteristics such as double flowers, thick and attractive foliage, and a manageable plant habit suitable for landscapes, which existing Philadelphus cultivars do not adequately provide.
Innovation Solution
The development of the Philadelphus cultivar 'SMNPBD' through planned breeding, characterized by double flowers, thick and dark green foliage, and a durable plant habit, achieved through asexual reproduction using softwood cuttings, which maintains stability across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing Philadelphus cultivars are used, then the plant is easy to maintain, but the flower form is not unique and foliage is not thick enough
Solution Approach 1:
The patent applies parameter changes by modifying the flower structure to create true double flowers with whorls of complete petals throughout, changing the petal arrangement from single-layer to multi-layer whorled configuration. This transforms the flower form parameter while maintaining cultivar stability through controlled breeding and asexual reproduction.
Solution Approach 2:
The patent creates a composite flower structure combining multiple layers of petals arranged in whorls, forming a true double flower configuration. This composite petal arrangement produces the unique flower form desired, with each layer contributing to the overall complex structure while maintaining genetic stability.
2Shape
If existing Philadelphus cultivars are used, then the plant habit is manageable, but the foliage is not thick and dark green enough
Solution Approach 1:
The patent changes the foliage parameters by producing thicker, darker green leaves through selective breeding. The foliage thickness parameter is increased while maintaining manageable plant habit, creating a contrast between leaf density and overall plant controllability.
3Stability of the object's composition
If the cultivar is propagated by seed, then genetic diversity is achieved, but the unique features are not stable across generations
Solution Approach 1:
The patent uses asexual reproduction through softwood cuttings to create genetic copies of the parent plant. This copying method preserves the unique double flower form and thick foliage characteristics exactly as they appear in the parent, ensuring feature stability across generations without the genetic variation introduced by seed propagation.
Solution Approach 2:
The patent changes the propagation method from sexual (seed) to asexual (cuttings), fundamentally altering how the plant reproduces. This parameter change in propagation mode ensures that the unique morphological parameters (double flowers, thick foliage) remain stable and true to type in successive generations.
4Adaptability or versatility
If environmental conditions vary, then the phenotype may change, but the genotype remains consistent
Solution Approach 1:
The patent acknowledges that environmental parameters (temperature, day length, light intensity) can change phenotypic expression while the genetic parameter remains constant. This distinction allows the cultivar to adapt to different environments while maintaining its core identity and unique characteristics.
Data Source
AI summary
A new and distinct Philadelphus cultivar named ‘SMNPBD’ is disclosed, characterized by double flowers, thick foliage, and an attractive plant habit for landscape purposes. The new variety is a Philadelphus, normally used for outdoor ornamental purposes.