Hydrangea Sidashar Breeding for Stress Resistance and Flower Production
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Solution Overview
Problem
There is a need for a Hydrangea macrophylla cultivar that exhibits strong, stress-resistant, and attractive floral characteristics, with unique flower colors and foliage, while maintaining stability across different environmental conditions.
Innovation Solution
The cultivar 'Sidashar' is developed through planned breeding, featuring large mophead inflorescences, coral pink flowers with a creamy white center, dark green foliage, and enhanced resistance to breaking, which distinguishes it from its parent varieties in terms of flower production, height, and stress tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional Hydrangea varieties are used, then production and horticultural characteristics are maintained, but stress resistance and flower production are insufficient
Solution Approach 1:
The patent applies parameter changes by selecting and stabilizing specific phenotypic parameters (flower color, inflorescence size, foliage characteristics) through controlled breeding. The cultivar 'Sidashar' exhibits changed parameters compared to parent varieties, including deeper inflorescence, wider flower arrangement, and enhanced stress resistance, achieved through systematic selection of superior traits from crosses between proprietary varieties 9503 and 9742.
2Stability of the object's composition
If asexual reproduction is used to maintain cultivar stability, then true-to-type reproduction is achieved, but environmental variations may affect phenotype
Solution Approach 1:
The patent employs feedback mechanisms through multiple generations of asexual reproduction (vegetative cuttings) to monitor and select for stable phenotypic expression. Six successive generations have been propagated to confirm genetic stability and true-to-type reproduction. The feedback loop involves observing phenotypic consistency across generations and environmental conditions, ensuring the cultivar maintains its distinctive characteristics while adapting to various growing conditions.
3Strength
If plant strength is enhanced to resist breaking, then durability in production is improved, but plant height and growth rate may be affected
Solution Approach 1:
The patent applies local quality by enhancing specific structural characteristics of the plant while maintaining overall growth potential. The cultivar 'Sidashar' exhibits improved lateral branch strength and stem robustness to resist breaking during production and post-harvest handling, while maintaining adequate plant height and growth rate through selective breeding of parent varieties 9503 and 9742.
Data Source
AI summary
A new and distinct Hydrangea cultivar named ‘Sidashar’ is disclosed, characterized by pink flowers with a creamy white center. The new variety is a Hydrangea, and naturally blooms from April through September.