Verbena KLEVP15611 Breeding for Large White Flowers and Mildew Tolerance
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Solution Overview
Problem
Current Verbena varieties lack desirable traits such as large white flowers, early flowering, and robust tolerance to powdery mildew, which limits their horticultural appeal and durability.
Innovation Solution
The development of the Verbena variety 'KLEVP15611', resulting from a cross between proprietary varieties 'VC1011' and 'VC1016', exhibits large white flowers, early flowering, and good tolerance to powdery mildew, achieved through vegetative propagation and selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional Verbena varieties are used, then general flowering is achieved, but flower size remains small and flower color lacks variety
Solution Approach 1:
The patent segments the flower color trait by introducing distinct color variations (white, pink, lavender, blue, purple) through controlled cross-pollination between different parental varieties, allowing each variety to be optimized for specific color and size characteristics rather than relying on a single general variety
Solution Approach 2:
The patent combines desirable traits from multiple parental varieties through cross-pollination, merging large flower size from one parent with specific color characteristics from another parent to create hybrid varieties that exhibit both large size and diverse colors simultaneously
2Shape
If Verbena varieties are selected for large flowers, then flower size increases, but tolerance to powdery mildew deteriorates
Solution Approach 1:
The patent combines large flower size traits with powdery mildew tolerance traits through controlled cross-pollination between parental varieties that each contribute different desirable characteristics, creating hybrid varieties that inherit both large flower morphology and disease resistance properties
Solution Approach 2:
The patent employs systematic evaluation and selection processes where plants are assessed for both flower size and disease tolerance characteristics, with successful hybrids being propagated and further refined through successive generations of breeding based on performance feedback
3Loss of time
If Verbena varieties are bred for early flowering, then flowering time decreases, but overall plant performance and durability are compromised
Solution Approach 1:
The patent merges early flowering traits with robust plant durability through cross-pollination between parental varieties, where one parent contributes early flowering characteristics and the other contributes hardiness and longevity traits, resulting in hybrids that exhibit both early blooming and sustained performance
Solution Approach 2:
The patent optimizes multiple plant parameters simultaneously through selective breeding, adjusting flowering time, plant size, flower size, and durability parameters together rather than optimizing a single parameter in isolation, achieving balanced improvement across multiple performance dimensions
Data Source
AI summary
A new Verbena plant particularly distinguished by large, white flowers, early to flower, and good tolerance to powdery mildew, is disclosed.