Hydrangea SMNHALR Cultivar Stem Strength and Inflorescence Size
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Hydrangea plants lack strong stems and large, attractive inflorescences, which are desirable traits for garden performance and aesthetics.
Innovation Solution
A new Hydrangea arborescens cultivar, 'SMNHALR', developed through cross-pollination of Hydrangea arborescens radiata and 'Pink Pincushion', exhibiting upright growth habit, sturdy stems, dark green leaves, and large mophead-type inflorescences with light green sterile flowers, which are stable and reproduce true to type via softwood cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional Hydrangea varieties are used, then they are easier to propagate and maintain, but they lack strong stems and large, attractive inflorescences
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific genetic traits that result in enhanced stem strength and larger inflorescence size. The new cultivar 'SMNHALR' exhibits these improved parameters through controlled cross-pollination and selection, achieving stronger stems (parameter_id: 14) and larger flower heads (parameter_id: 7) while maintaining propagation capability through softwood cuttings
2Volume of moving object
If Hydrangea plants are bred for larger inflorescences, then flower head size increases, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies preliminary action by conducting controlled cross-pollination between selected parent plants before the breeding objective is fully realized. The inventor performed cross-pollination in July 2007 between an unnamed selection of H. arborescens radiata (female) and H. arborescens 'Pink Pincushion' (male), then selected the superior flowering plant from the progeny in July 2011, establishing the new cultivar 'SMNHALR' with larger inflorescences through advance planned breeding steps
3Reliability
If new cultivars are developed through cross-pollination, then desirable traits are achieved, but the time required for development increases
Solution Approach 1:
The patent applies self-service by allowing the selected progeny plant to naturally reproduce and stabilize its traits through asexual propagation. Once the superior flowering plant was identified in July 2011, it was propagated by softwood cuttings in a controlled environment, allowing the new cultivar to serve itself in reproducing its desirable traits (strong stems, large inflorescences, light green sterile flowers) without requiring further complex intervention, thus reducing additional development time
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘SMNHALR’, characterized by its upright, outwardly spreading and mounded plant habit; strong and sturdy stems; dark green-colored leaves; large mophead-type inflorescences with light green-colored sterile flowers; and good garden performance.