Hydrangea paniculata cultivar with compact habit and color-changing sterile flowers
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Solution Overview
Problem
Existing Hydrangea paniculata cultivars lack compact plant habits and distinct, attractive flower colors, particularly in sterile flower varieties, which limits their landscape appeal and diversity.
Innovation Solution
The development of the 'Bokrathirteen' cultivar, characterized by a compact plant habit, broadly conical panicles, and sterile flowers that transition from creamy white to light pink, achieved through selective breeding and asexual reproduction via softwood stem cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing Hydrangea paniculata cultivars are used, then they have abundant flowers, but they lack compact plant habits and distinct attractive flower colors
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific morphological parameters including compact plant habit, broadly conical panicle shape, and distinctive color transition from creamy white to light pink. These parameter modifications create a cultivar that simultaneously achieves compactness and enhanced landscape appeal
2Quantity of substance
If existing Hydrangea paniculata cultivars are used, then they have large proportion of fertile flowers, but they lack abundant sterile flowers with distinct color change
Solution Approach 1:
The patent applies local quality by creating a cultivar where the majority of flowers (primarily sterile) possess a specific local characteristic - the distinctive creamy white to light pink color transition. This localized quality enhancement in the sterile flowers provides the desired visual appeal without requiring modification of the entire plant system
3Manufacturing precision
If selective breeding is performed to achieve compact habit and distinct colors, then unique cultivar characteristics are developed, but breeding time and complexity increase
Solution Approach 1:
The patent applies preliminary action by conducting systematic selective breeding over multiple generations (with asexual reproduction first accomplished in 2006 and characteristics determined stable by 2011) to establish the desired traits before formal cultivar recognition. This preliminary development ensures characteristic stability and reduces future breeding time
Data Source
AI summary
A new cultivar of Hydrangea paniculata named ‘Bokrathirteen’ that is characterized by its compact plant habit and its inflorescences that are broadly conical in shape and comprised primarily of sterile flowers that open creamy white in color and change to a light pink color.