Hydrangea ILVOCLOU Compact Growth and Early Blooming
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Solution Overview
Problem
Existing Hydrangea varieties lack compact growth habits and strong early blooming capabilities, with limited options for cultivars that exhibit vibrant, persistent flower colors and attractive foliage.
Innovation Solution
The development of the Hydrangea macrophylla 'ILVOCLOU' cultivar, resulting from a breeding program combining Hydrangea serrata 'Bluebird' and Hydrangea macrophylla 'Mariesii Perfecta', which features compact growth, lace-cap inflorescence, light violet-blue sterile flowers, medium violet-blue fertile flowers, and attractive foliage, achieved through asexual reproduction by softwood cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional Hydrangea varieties are used, then they have larger plant size, but they lack compact growth habits
Solution Approach 1:
The patent applies parameter changes by selectively breeding Hydrangea plants to modify growth habit parameters, specifically achieving a compact, mounded form through controlled cross-pollination between Hydrangea serrata 'Bluebird' and Hydrangea macrophylla 'Mariesii Perfecta', resulting in the novel cultivar with reduced plant size while maintaining structural integrity
2Duration of action of moving object
If conventional Hydrangea varieties are used, then they have later blooming, but they lack strong blooming in the first year
Solution Approach 1:
The patent applies preliminary action by performing controlled cross-pollination during the growing season (Summer 2003) to pre-establish the genetic traits for early and abundant blooming in the resulting cultivar, which then expresses strong first-year flowering capability without requiring extended maturation periods
Solution Approach 2:
The patent modifies the blooming parameters through selective breeding, changing both the timing (earlier blooming) and intensity (stronger first-year flowering) by combining genetic material from two parent varieties with complementary flowering characteristics
3Adaptability or versatility
If conventional Hydrangea varieties are used, then they have limited flower color options, but they lack vibrant, persistent flower colors
Solution Approach 1:
The patent applies color changes by breeding a cultivar that produces vibrant violet-blue flower colors with persistent sepals, achieving both color vibrancy and longevity through the combination of sterile light violet-blue flowers with purple sepals and fertile medium violet-blue flowers
4Adaptability or versatility
If conventional Hydrangea varieties are used, then they have ordinary foliage, but they lack attractive foliage
Solution Approach 1:
The patent applies local quality by enhancing specific foliage characteristics including lighter green leaf color and attractive autumn coloration, creating distinct visual interest in the foliage portion of the plant while maintaining overall plant compactness and flowering performance
Data Source
AI summary
A new and distinct Hydrangea plant named ‘ILVOCLOU’ is disclosed, characterized by compact plants producing lace-cap inflorescences having light violet-blue sterile flowers with purple sepals and medium violet-blue fertile flowers. Plants produce attractive foliage and bloom abundantly. The new variety is a Hydrangea, normally produced as an ornamental plant.