Hydrangea paniculata Grypast05 Star-Shaped Sepals
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Solution Overview
Problem
There is a need for a new cultivar of Hydrangea paniculata that exhibits unique and stable characteristics such as creamy-white, star-shaped sterile flower sepals, compact plant habit, and strong flower stems, which are not adequately met by existing cultivars like 'Silver Dollar' and 'Limelight'.
Innovation Solution
The development of the 'GRYPAST05' cultivar, resulting from controlled breeding and asexual propagation by stem cuttings, which showcases creamy-white, star-shaped sterile flower sepals and a compact, strong plant habit, similar to but distinct from existing cultivars like 'Silver Dollar' and 'Limelight'.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing cultivars like 'Silver Dollar' and 'Limelight' are used, then white sterile flower sepals are obtained, but the sepals are smaller in size and less star-shaped
Solution Approach 1:
The patent applies parameter changes by selectively breeding plants to alter specific characteristics of the sterile flower sepals. Through controlled crosses and selection, the cultivar 'GRYPAST05' was developed with sepals that have both increased size and enhanced star-shaped morphology compared to existing cultivars. This involves changing multiple parameters simultaneously (size, shape complexity) through genetic selection.
2Stability of the object's composition
If asexual propagation by stem cuttings is used, then stable and true-to-type reproduction is achieved, but the propagation process requires time and controlled conditions
Solution Approach 1:
The patent employs preliminary action by performing asexual propagation through stem cuttings under controlled conditions to establish stable, true-to-type reproductions before field planting. This preliminary propagation step ensures that the desired characteristics (creamy-white star-shaped sepals, compact habit, strong stems) are fixed and will be consistently expressed in subsequent growth stages, reducing the need for further selection and training time.
Data Source
AI summary
A new cultivar of Hydrangea paniculata plant named ‘GRYPAST05’ that is characterized by its inflorescences with sterile flower sepals that are creamy white in color and remain creamy white as they mature, its inflorescences with sterile flower sepals that are star-shaped, its compact plant habit, and its strong flower stems.