EJG Three Grapevine Hybrid for Fruity Wine Production
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Solution Overview
Problem
Current grapevine varieties lack a distinct hybrid that combines desirable traits such as large, black grapes with fruity flavor and floral aromas suitable for wine production, while being self-fertile and differing significantly from existing varieties.
Innovation Solution
A new Vitis interspecific hybrid, 'EJG Three', characterized by medium-large loose clusters of black grapes with self-fertile perfect flowers, medium-thick skin, and distinct fruity and floral flavors, developed through hand pollination and asexual propagation, demonstrating unique DNA fingerprinting and distinct characteristics compared to similar commercial varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing grapevine varieties are used, then wine production is possible, but the varieties lack distinct hybrid characteristics combining large black grapes with fruity flavor and floral aromas
Solution Approach 1:
The patent applies composite materials principle by creating an interspecific hybrid grapevine ('EJG Three') that combines genetic traits from different Vitis species. The hybrid inherits desirable characteristics including large black grape size, fruity flavor, and floral aromas, producing a composite genetic structure that superior to parent varieties for wine production
2Ease of operation
If self-fertility is achieved through perfect flowers, then pollination flexibility increases, but existing varieties do not possess this trait
Solution Approach 1:
The patent applies universality principle by developing 'EJG Three' with perfect flowers containing both functional stamens and pistils, enabling the grapevine to perform multiple reproductive functions. The variety can self-pollinate or cross-pollinate, providing pollination flexibility and reproductive assurance not found in existing varieties
3Measurement precision
If distinct DNA fingerprint is established, then variety uniqueness is confirmed, but differentiation from similar commercial varieties is needed
Solution Approach 1:
The patent applies color changes principle by using DNA fingerprinting markers that reveal unique genetic signatures. The microsatellite markers detect specific genetic variations in 'EJG Three' that differentiate it from similar commercial varieties like Turan, Muscat Hamburg, and Muscat of Alexandria, providing precise variety identification
Data Source
AI summary
A new and distinct variety of grapevine plant named ‘EJG Three’ characterized by production of long, loose clusters of black grapes with a distinct fruity flavor. The grapes are suitable for making wine with fruity and floral (e.g., rose petal) flavors and aromas. ‘EJG Three’ vines are fertile with spur pruning.