Sterile Triploid Hibiscus Cultivar ILVOPS Breeding
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Solution Overview
Problem
There is a need for new sterile triploid Hibiscus varieties that produce no seeds, with specific desirable traits such as large, purple single flowers and high flower production, which existing Hibiscus cultivars do not adequately address.
Innovation Solution
The development of the Hibiscus syriacus 'ILVOPS' cultivar, resulting from a breeding program using Hibiscus syriacus 'Purple CV2' as the seed parent and Hibiscus syriacus 'Floru' as the pollen parent, which is sterile, has large purple flowers with a red-purple center, and high flower production, and is propagated through vegetative softwood cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Hibiscus cultivars are used, then they can be propagated and grown, but they produce seeds and do not exhibit the desired sterile triploid characteristics with large purple flowers and high flower production
Solution Approach 1:
The patent applies parameter changes by creating a triploid cultivar through controlled hybridization between tetraploid and diploid parents, resulting in a sterile plant with altered chromosome number (3n=36) that exhibits enhanced flower size, purple coloration, and high flower production while eliminating seed formation
2Shape
If the new cultivar 'ILVOPS' is developed with large purple flowers, then flower quality is improved, but flower size may be reduced compared to seed parent
Solution Approach 1:
The patent applies local quality by combining specific parental traits selectively - the cultivar inherits the purple coloration and single flower form from the seed parent while maintaining adequate flower size, creating a balanced phenotype that emphasizes color and flower type over maximum size
3Length of stationary object
If the new cultivar 'ILVOPS' is developed with compact size, then plant dimensions are reduced, but it may affect overall vigor and growth
Solution Approach 1:
The patent applies parameter changes by creating a compact plant form through triploid sterility that naturally limits vegetative growth while redirecting energy resources toward prolific flower production, achieving a balanced phenotype with moderate dimensions and high floral output
Data Source
AI summary
A new and distinct Hibiscus cultivar named ‘ILVOPS’ is disclosed, characterized by and heavy blooming of large purple single flowers with a red-purple center eye. Plants do not produce seeds. The new variety is a Hibiscus, normally produced as an outdoor garden or container plant.